Update common_audio
Corresponds to upstream commit 524e9b043e7e86fd72353b987c9d5f6a1ebf83e1 Update notes: * Moved src/ to webrtc/ to easily diff against the third_party/webrtc in the chromium tree * ARM/NEON/MIPS support is not yet hooked up * Tests have not been copied
This commit is contained in:
Arun Raghavan
20
webrtc/modules/audio_processing/ns/Makefile.am
Normal file
20
webrtc/modules/audio_processing/ns/Makefile.am
Normal file
@ -0,0 +1,20 @@
|
||||
noinst_LTLIBRARIES = libns.la libns_fix.la
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libns_la_SOURCES = interface/noise_suppression.h \
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noise_suppression.c \
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||||
windows_private.h \
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defines.h \
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ns_core.c \
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ns_core.h
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libns_la_CFLAGS = $(AM_CFLAGS) $(COMMON_CFLAGS) \
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-I$(top_srcdir)/src/common_audio/signal_processing_library/main/interface \
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-I$(top_srcdir)/src/modules/audio_processing/utility
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libns_fix_la_SOURCES = interface/noise_suppression_x.h \
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noise_suppression_x.c \
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||||
nsx_defines.h \
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||||
nsx_core.c \
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nsx_core.h
|
||||
libns_fix_la_CFLAGS = $(AM_CFLAGS) $(COMMON_CFLAGS) \
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-I$(top_srcdir)/src/common_audio/signal_processing_library/main/interface \
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-I$(top_srcdir)/src/modules/audio_processing/utility
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53
webrtc/modules/audio_processing/ns/defines.h
Normal file
53
webrtc/modules/audio_processing/ns/defines.h
Normal file
@ -0,0 +1,53 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_DEFINES_H_
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||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_DEFINES_H_
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//#define PROCESS_FLOW_0 // Use the traditional method.
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//#define PROCESS_FLOW_1 // Use traditional with DD estimate of prior SNR.
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#define PROCESS_FLOW_2 // Use the new method of speech/noise classification.
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#define BLOCKL_MAX 160 // max processing block length: 160
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#define ANAL_BLOCKL_MAX 256 // max analysis block length: 256
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#define HALF_ANAL_BLOCKL 129 // half max analysis block length + 1
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#define QUANTILE (float)0.25
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#define SIMULT 3
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#define END_STARTUP_LONG 200
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#define END_STARTUP_SHORT 50
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#define FACTOR (float)40.0
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#define WIDTH (float)0.01
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#define SMOOTH (float)0.75 // filter smoothing
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// Length of fft work arrays.
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#define IP_LENGTH (ANAL_BLOCKL_MAX >> 1) // must be at least ceil(2 + sqrt(ANAL_BLOCKL_MAX/2))
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#define W_LENGTH (ANAL_BLOCKL_MAX >> 1)
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|
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//PARAMETERS FOR NEW METHOD
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#define DD_PR_SNR (float)0.98 // DD update of prior SNR
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#define LRT_TAVG (float)0.50 // tavg parameter for LRT (previously 0.90)
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#define SPECT_FL_TAVG (float)0.30 // tavg parameter for spectral flatness measure
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#define SPECT_DIFF_TAVG (float)0.30 // tavg parameter for spectral difference measure
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#define PRIOR_UPDATE (float)0.10 // update parameter of prior model
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#define NOISE_UPDATE (float)0.90 // update parameter for noise
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#define SPEECH_UPDATE (float)0.99 // update parameter when likely speech
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#define WIDTH_PR_MAP (float)4.0 // width parameter in sigmoid map for prior model
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#define LRT_FEATURE_THR (float)0.5 // default threshold for LRT feature
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#define SF_FEATURE_THR (float)0.5 // default threshold for Spectral Flatness feature
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#define SD_FEATURE_THR (float)0.5 // default threshold for Spectral Difference feature
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#define PROB_RANGE (float)0.20 // probability threshold for noise state in
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// speech/noise likelihood
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#define HIST_PAR_EST 1000 // histogram size for estimation of parameters
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#define GAMMA_PAUSE (float)0.05 // update for conservative noise estimate
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//
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#define B_LIM (float)0.5 // threshold in final energy gain factor calculation
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_DEFINES_H_
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124
webrtc/modules/audio_processing/ns/interface/noise_suppression.h
Normal file
124
webrtc/modules/audio_processing/ns/interface/noise_suppression.h
Normal file
@ -0,0 +1,124 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_INTERFACE_NOISE_SUPPRESSION_H_
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||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_INTERFACE_NOISE_SUPPRESSION_H_
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||||
|
||||
#include "typedefs.h"
|
||||
|
||||
typedef struct NsHandleT NsHandle;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This function returns the version number of the code.
|
||||
*
|
||||
* Input:
|
||||
* - version : Pointer to a character array where the version
|
||||
* info is stored.
|
||||
* - length : Length of version.
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error (probably length is not sufficient)
|
||||
*/
|
||||
int WebRtcNs_get_version(char* version, short length);
|
||||
|
||||
|
||||
/*
|
||||
* This function creates an instance to the noise reduction structure
|
||||
*
|
||||
* Input:
|
||||
* - NS_inst : Pointer to noise reduction instance that should be
|
||||
* created
|
||||
*
|
||||
* Output:
|
||||
* - NS_inst : Pointer to created noise reduction instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_Create(NsHandle** NS_inst);
|
||||
|
||||
|
||||
/*
|
||||
* This function frees the dynamic memory of a specified Noise Reduction
|
||||
* instance.
|
||||
*
|
||||
* Input:
|
||||
* - NS_inst : Pointer to NS instance that should be freed
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_Free(NsHandle* NS_inst);
|
||||
|
||||
|
||||
/*
|
||||
* This function initializes a NS instance
|
||||
*
|
||||
* Input:
|
||||
* - NS_inst : Instance that should be initialized
|
||||
* - fs : sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - NS_inst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_Init(NsHandle* NS_inst, WebRtc_UWord32 fs);
|
||||
|
||||
/*
|
||||
* This changes the aggressiveness of the noise suppression method.
|
||||
*
|
||||
* Input:
|
||||
* - NS_inst : Instance that should be initialized
|
||||
* - mode : 0: Mild, 1: Medium , 2: Aggressive
|
||||
*
|
||||
* Output:
|
||||
* - NS_inst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_set_policy(NsHandle* NS_inst, int mode);
|
||||
|
||||
|
||||
/*
|
||||
* This functions does Noise Suppression for the inserted speech frame. The
|
||||
* input and output signals should always be 10ms (80 or 160 samples).
|
||||
*
|
||||
* Input
|
||||
* - NS_inst : NS Instance. Needs to be initiated before call.
|
||||
* - spframe : Pointer to speech frame buffer for L band
|
||||
* - spframe_H : Pointer to speech frame buffer for H band
|
||||
* - fs : sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - NS_inst : Updated NS instance
|
||||
* - outframe : Pointer to output frame for L band
|
||||
* - outframe_H : Pointer to output frame for H band
|
||||
*
|
||||
* Return value : 0 - OK
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_Process(NsHandle* NS_inst,
|
||||
short* spframe,
|
||||
short* spframe_H,
|
||||
short* outframe,
|
||||
short* outframe_H);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_INTERFACE_NOISE_SUPPRESSION_H_
|
||||
@ -0,0 +1,123 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_INTERFACE_NOISE_SUPPRESSION_X_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_INTERFACE_NOISE_SUPPRESSION_X_H_
|
||||
|
||||
#include "typedefs.h"
|
||||
|
||||
typedef struct NsxHandleT NsxHandle;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This function returns the version number of the code.
|
||||
*
|
||||
* Input:
|
||||
* - version : Pointer to a character array where the version
|
||||
* info is stored.
|
||||
* - length : Length of version.
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error (probably length is not sufficient)
|
||||
*/
|
||||
int WebRtcNsx_get_version(char* version, short length);
|
||||
|
||||
|
||||
/*
|
||||
* This function creates an instance to the noise reduction structure
|
||||
*
|
||||
* Input:
|
||||
* - nsxInst : Pointer to noise reduction instance that should be
|
||||
* created
|
||||
*
|
||||
* Output:
|
||||
* - nsxInst : Pointer to created noise reduction instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_Create(NsxHandle** nsxInst);
|
||||
|
||||
|
||||
/*
|
||||
* This function frees the dynamic memory of a specified Noise Suppression
|
||||
* instance.
|
||||
*
|
||||
* Input:
|
||||
* - nsxInst : Pointer to NS instance that should be freed
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_Free(NsxHandle* nsxInst);
|
||||
|
||||
|
||||
/*
|
||||
* This function initializes a NS instance
|
||||
*
|
||||
* Input:
|
||||
* - nsxInst : Instance that should be initialized
|
||||
* - fs : sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - nsxInst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_Init(NsxHandle* nsxInst, WebRtc_UWord32 fs);
|
||||
|
||||
/*
|
||||
* This changes the aggressiveness of the noise suppression method.
|
||||
*
|
||||
* Input:
|
||||
* - nsxInst : Instance that should be initialized
|
||||
* - mode : 0: Mild, 1: Medium , 2: Aggressive
|
||||
*
|
||||
* Output:
|
||||
* - nsxInst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_set_policy(NsxHandle* nsxInst, int mode);
|
||||
|
||||
/*
|
||||
* This functions does noise suppression for the inserted speech frame. The
|
||||
* input and output signals should always be 10ms (80 or 160 samples).
|
||||
*
|
||||
* Input
|
||||
* - nsxInst : NSx instance. Needs to be initiated before call.
|
||||
* - speechFrame : Pointer to speech frame buffer for L band
|
||||
* - speechFrameHB : Pointer to speech frame buffer for H band
|
||||
* - fs : sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - nsxInst : Updated NSx instance
|
||||
* - outFrame : Pointer to output frame for L band
|
||||
* - outFrameHB : Pointer to output frame for H band
|
||||
*
|
||||
* Return value : 0 - OK
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_Process(NsxHandle* nsxInst,
|
||||
short* speechFrame,
|
||||
short* speechFrameHB,
|
||||
short* outFrame,
|
||||
short* outFrameHB);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_INTERFACE_NOISE_SUPPRESSION_X_H_
|
||||
65
webrtc/modules/audio_processing/ns/noise_suppression.c
Normal file
65
webrtc/modules/audio_processing/ns/noise_suppression.c
Normal file
@ -0,0 +1,65 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "noise_suppression.h"
|
||||
#include "ns_core.h"
|
||||
#include "defines.h"
|
||||
|
||||
int WebRtcNs_get_version(char* versionStr, short length) {
|
||||
const char version[] = "NS 2.2.0";
|
||||
const short versionLen = (short)strlen(version) + 1; // +1: null-termination
|
||||
|
||||
if (versionStr == NULL) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (versionLen > length) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
strncpy(versionStr, version, versionLen);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int WebRtcNs_Create(NsHandle** NS_inst) {
|
||||
*NS_inst = (NsHandle*) malloc(sizeof(NSinst_t));
|
||||
if (*NS_inst != NULL) {
|
||||
(*(NSinst_t**)NS_inst)->initFlag = 0;
|
||||
return 0;
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
int WebRtcNs_Free(NsHandle* NS_inst) {
|
||||
free(NS_inst);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
int WebRtcNs_Init(NsHandle* NS_inst, WebRtc_UWord32 fs) {
|
||||
return WebRtcNs_InitCore((NSinst_t*) NS_inst, fs);
|
||||
}
|
||||
|
||||
int WebRtcNs_set_policy(NsHandle* NS_inst, int mode) {
|
||||
return WebRtcNs_set_policy_core((NSinst_t*) NS_inst, mode);
|
||||
}
|
||||
|
||||
|
||||
int WebRtcNs_Process(NsHandle* NS_inst, short* spframe, short* spframe_H,
|
||||
short* outframe, short* outframe_H) {
|
||||
return WebRtcNs_ProcessCore(
|
||||
(NSinst_t*) NS_inst, spframe, spframe_H, outframe, outframe_H);
|
||||
}
|
||||
65
webrtc/modules/audio_processing/ns/noise_suppression_x.c
Normal file
65
webrtc/modules/audio_processing/ns/noise_suppression_x.c
Normal file
@ -0,0 +1,65 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "noise_suppression_x.h"
|
||||
#include "nsx_core.h"
|
||||
#include "nsx_defines.h"
|
||||
|
||||
int WebRtcNsx_get_version(char* versionStr, short length) {
|
||||
const char version[] = "NS\t3.1.0";
|
||||
const short versionLen = (short)strlen(version) + 1; // +1: null-termination
|
||||
|
||||
if (versionStr == NULL) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (versionLen > length) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
strncpy(versionStr, version, versionLen);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int WebRtcNsx_Create(NsxHandle** nsxInst) {
|
||||
*nsxInst = (NsxHandle*)malloc(sizeof(NsxInst_t));
|
||||
if (*nsxInst != NULL) {
|
||||
(*(NsxInst_t**)nsxInst)->initFlag = 0;
|
||||
return 0;
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
int WebRtcNsx_Free(NsxHandle* nsxInst) {
|
||||
free(nsxInst);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int WebRtcNsx_Init(NsxHandle* nsxInst, WebRtc_UWord32 fs) {
|
||||
return WebRtcNsx_InitCore((NsxInst_t*)nsxInst, fs);
|
||||
}
|
||||
|
||||
int WebRtcNsx_set_policy(NsxHandle* nsxInst, int mode) {
|
||||
return WebRtcNsx_set_policy_core((NsxInst_t*)nsxInst, mode);
|
||||
}
|
||||
|
||||
int WebRtcNsx_Process(NsxHandle* nsxInst, short* speechFrame,
|
||||
short* speechFrameHB, short* outFrame,
|
||||
short* outFrameHB) {
|
||||
return WebRtcNsx_ProcessCore(
|
||||
(NsxInst_t*)nsxInst, speechFrame, speechFrameHB, outFrame, outFrameHB);
|
||||
}
|
||||
|
||||
58
webrtc/modules/audio_processing/ns/ns.gypi
Normal file
58
webrtc/modules/audio_processing/ns/ns.gypi
Normal file
@ -0,0 +1,58 @@
|
||||
# Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
#
|
||||
# Use of this source code is governed by a BSD-style license
|
||||
# that can be found in the LICENSE file in the root of the source
|
||||
# tree. An additional intellectual property rights grant can be found
|
||||
# in the file PATENTS. All contributing project authors may
|
||||
# be found in the AUTHORS file in the root of the source tree.
|
||||
|
||||
{
|
||||
'targets': [
|
||||
{
|
||||
'target_name': 'ns',
|
||||
'type': '<(library)',
|
||||
'dependencies': [
|
||||
'<(webrtc_root)/common_audio/common_audio.gyp:spl',
|
||||
'apm_util'
|
||||
],
|
||||
'include_dirs': [
|
||||
'interface',
|
||||
],
|
||||
'direct_dependent_settings': {
|
||||
'include_dirs': [
|
||||
'interface',
|
||||
],
|
||||
},
|
||||
'sources': [
|
||||
'interface/noise_suppression.h',
|
||||
'noise_suppression.c',
|
||||
'windows_private.h',
|
||||
'defines.h',
|
||||
'ns_core.c',
|
||||
'ns_core.h',
|
||||
],
|
||||
},
|
||||
{
|
||||
'target_name': 'ns_fix',
|
||||
'type': '<(library)',
|
||||
'dependencies': [
|
||||
'<(webrtc_root)/common_audio/common_audio.gyp:spl',
|
||||
],
|
||||
'include_dirs': [
|
||||
'interface',
|
||||
],
|
||||
'direct_dependent_settings': {
|
||||
'include_dirs': [
|
||||
'interface',
|
||||
],
|
||||
},
|
||||
'sources': [
|
||||
'interface/noise_suppression_x.h',
|
||||
'noise_suppression_x.c',
|
||||
'nsx_defines.h',
|
||||
'nsx_core.c',
|
||||
'nsx_core.h',
|
||||
],
|
||||
},
|
||||
],
|
||||
}
|
||||
1305
webrtc/modules/audio_processing/ns/ns_core.c
Normal file
1305
webrtc/modules/audio_processing/ns/ns_core.c
Normal file
File diff suppressed because it is too large
Load Diff
179
webrtc/modules/audio_processing/ns/ns_core.h
Normal file
179
webrtc/modules/audio_processing/ns/ns_core.h
Normal file
@ -0,0 +1,179 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NS_CORE_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NS_CORE_H_
|
||||
|
||||
#include "defines.h"
|
||||
|
||||
typedef struct NSParaExtract_t_ {
|
||||
|
||||
//bin size of histogram
|
||||
float binSizeLrt;
|
||||
float binSizeSpecFlat;
|
||||
float binSizeSpecDiff;
|
||||
//range of histogram over which lrt threshold is computed
|
||||
float rangeAvgHistLrt;
|
||||
//scale parameters: multiply dominant peaks of the histograms by scale factor to obtain
|
||||
//thresholds for prior model
|
||||
float factor1ModelPars; //for lrt and spectral difference
|
||||
float factor2ModelPars; //for spectral_flatness: used when noise is flatter than speech
|
||||
//peak limit for spectral flatness (varies between 0 and 1)
|
||||
float thresPosSpecFlat;
|
||||
//limit on spacing of two highest peaks in histogram: spacing determined by bin size
|
||||
float limitPeakSpacingSpecFlat;
|
||||
float limitPeakSpacingSpecDiff;
|
||||
//limit on relevance of second peak:
|
||||
float limitPeakWeightsSpecFlat;
|
||||
float limitPeakWeightsSpecDiff;
|
||||
//limit on fluctuation of lrt feature
|
||||
float thresFluctLrt;
|
||||
//limit on the max and min values for the feature thresholds
|
||||
float maxLrt;
|
||||
float minLrt;
|
||||
float maxSpecFlat;
|
||||
float minSpecFlat;
|
||||
float maxSpecDiff;
|
||||
float minSpecDiff;
|
||||
//criteria of weight of histogram peak to accept/reject feature
|
||||
int thresWeightSpecFlat;
|
||||
int thresWeightSpecDiff;
|
||||
|
||||
} NSParaExtract_t;
|
||||
|
||||
typedef struct NSinst_t_ {
|
||||
|
||||
WebRtc_UWord32 fs;
|
||||
int blockLen;
|
||||
int blockLen10ms;
|
||||
int windShift;
|
||||
int outLen;
|
||||
int anaLen;
|
||||
int magnLen;
|
||||
int aggrMode;
|
||||
const float* window;
|
||||
float dataBuf[ANAL_BLOCKL_MAX];
|
||||
float syntBuf[ANAL_BLOCKL_MAX];
|
||||
float outBuf[3 * BLOCKL_MAX];
|
||||
|
||||
int initFlag;
|
||||
// parameters for quantile noise estimation
|
||||
float density[SIMULT* HALF_ANAL_BLOCKL];
|
||||
float lquantile[SIMULT* HALF_ANAL_BLOCKL];
|
||||
float quantile[HALF_ANAL_BLOCKL];
|
||||
int counter[SIMULT];
|
||||
int updates;
|
||||
// parameters for Wiener filter
|
||||
float smooth[HALF_ANAL_BLOCKL];
|
||||
float overdrive;
|
||||
float denoiseBound;
|
||||
int gainmap;
|
||||
// fft work arrays.
|
||||
int ip[IP_LENGTH];
|
||||
float wfft[W_LENGTH];
|
||||
|
||||
// parameters for new method: some not needed, will reduce/cleanup later
|
||||
WebRtc_Word32 blockInd; //frame index counter
|
||||
int modelUpdatePars[4]; //parameters for updating or estimating
|
||||
// thresholds/weights for prior model
|
||||
float priorModelPars[7]; //parameters for prior model
|
||||
float noisePrev[HALF_ANAL_BLOCKL]; //noise spectrum from previous frame
|
||||
float magnPrev[HALF_ANAL_BLOCKL]; //magnitude spectrum of previous frame
|
||||
float logLrtTimeAvg[HALF_ANAL_BLOCKL]; //log lrt factor with time-smoothing
|
||||
float priorSpeechProb; //prior speech/noise probability
|
||||
float featureData[7]; //data for features
|
||||
float magnAvgPause[HALF_ANAL_BLOCKL]; //conservative noise spectrum estimate
|
||||
float signalEnergy; //energy of magn
|
||||
float sumMagn; //sum of magn
|
||||
float whiteNoiseLevel; //initial noise estimate
|
||||
float initMagnEst[HALF_ANAL_BLOCKL]; //initial magnitude spectrum estimate
|
||||
float pinkNoiseNumerator; //pink noise parameter: numerator
|
||||
float pinkNoiseExp; //pink noise parameter: power of freq
|
||||
NSParaExtract_t featureExtractionParams; //parameters for feature extraction
|
||||
//histograms for parameter estimation
|
||||
int histLrt[HIST_PAR_EST];
|
||||
int histSpecFlat[HIST_PAR_EST];
|
||||
int histSpecDiff[HIST_PAR_EST];
|
||||
//quantities for high band estimate
|
||||
float speechProbHB[HALF_ANAL_BLOCKL]; //final speech/noise prob: prior + LRT
|
||||
float dataBufHB[ANAL_BLOCKL_MAX]; //buffering data for HB
|
||||
|
||||
} NSinst_t;
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNs_InitCore(...)
|
||||
*
|
||||
* This function initializes a noise suppression instance
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - fs : Sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - inst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_InitCore(NSinst_t* inst, WebRtc_UWord32 fs);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNs_set_policy_core(...)
|
||||
*
|
||||
* This changes the aggressiveness of the noise suppression method.
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - mode : 0: Mild (6 dB), 1: Medium (10 dB), 2: Aggressive (15 dB)
|
||||
*
|
||||
* Output:
|
||||
* - NS_inst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_set_policy_core(NSinst_t* inst, int mode);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNs_ProcessCore
|
||||
*
|
||||
* Do noise suppression.
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - inFrameLow : Input speech frame for lower band
|
||||
* - inFrameHigh : Input speech frame for higher band
|
||||
*
|
||||
* Output:
|
||||
* - inst : Updated instance
|
||||
* - outFrameLow : Output speech frame for lower band
|
||||
* - outFrameHigh : Output speech frame for higher band
|
||||
*
|
||||
* Return value : 0 - OK
|
||||
* -1 - Error
|
||||
*/
|
||||
|
||||
|
||||
int WebRtcNs_ProcessCore(NSinst_t* inst,
|
||||
short* inFrameLow,
|
||||
short* inFrameHigh,
|
||||
short* outFrameLow,
|
||||
short* outFrameHigh);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NS_CORE_H_
|
||||
2370
webrtc/modules/audio_processing/ns/nsx_core.c
Normal file
2370
webrtc/modules/audio_processing/ns/nsx_core.c
Normal file
File diff suppressed because it is too large
Load Diff
180
webrtc/modules/audio_processing/ns/nsx_core.h
Normal file
180
webrtc/modules/audio_processing/ns/nsx_core.h
Normal file
@ -0,0 +1,180 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_CORE_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_CORE_H_
|
||||
|
||||
#include "typedefs.h"
|
||||
#include "signal_processing_library.h"
|
||||
|
||||
#include "nsx_defines.h"
|
||||
|
||||
#ifdef NS_FILEDEBUG
|
||||
#include <stdio.h>
|
||||
#endif
|
||||
|
||||
typedef struct NsxInst_t_ {
|
||||
WebRtc_UWord32 fs;
|
||||
|
||||
const WebRtc_Word16* window;
|
||||
WebRtc_Word16 analysisBuffer[ANAL_BLOCKL_MAX];
|
||||
WebRtc_Word16 synthesisBuffer[ANAL_BLOCKL_MAX];
|
||||
WebRtc_UWord16 noiseSupFilter[HALF_ANAL_BLOCKL];
|
||||
WebRtc_UWord16 overdrive; /* Q8 */
|
||||
WebRtc_UWord16 denoiseBound; /* Q14 */
|
||||
const WebRtc_Word16* factor2Table;
|
||||
WebRtc_Word16 noiseEstLogQuantile[SIMULT* HALF_ANAL_BLOCKL];
|
||||
WebRtc_Word16 noiseEstDensity[SIMULT* HALF_ANAL_BLOCKL];
|
||||
WebRtc_Word16 noiseEstCounter[SIMULT];
|
||||
WebRtc_Word16 noiseEstQuantile[HALF_ANAL_BLOCKL];
|
||||
|
||||
WebRtc_Word16 anaLen;
|
||||
int anaLen2;
|
||||
int magnLen;
|
||||
int aggrMode;
|
||||
int stages;
|
||||
int initFlag;
|
||||
int gainMap;
|
||||
|
||||
WebRtc_Word32 maxLrt;
|
||||
WebRtc_Word32 minLrt;
|
||||
WebRtc_Word32 logLrtTimeAvgW32[HALF_ANAL_BLOCKL]; //log lrt factor with time-smoothing in Q8
|
||||
WebRtc_Word32 featureLogLrt;
|
||||
WebRtc_Word32 thresholdLogLrt;
|
||||
WebRtc_Word16 weightLogLrt;
|
||||
|
||||
WebRtc_UWord32 featureSpecDiff;
|
||||
WebRtc_UWord32 thresholdSpecDiff;
|
||||
WebRtc_Word16 weightSpecDiff;
|
||||
|
||||
WebRtc_UWord32 featureSpecFlat;
|
||||
WebRtc_UWord32 thresholdSpecFlat;
|
||||
WebRtc_Word16 weightSpecFlat;
|
||||
|
||||
WebRtc_Word32 avgMagnPause[HALF_ANAL_BLOCKL]; //conservative estimate of noise spectrum
|
||||
WebRtc_UWord32 magnEnergy;
|
||||
WebRtc_UWord32 sumMagn;
|
||||
WebRtc_UWord32 curAvgMagnEnergy;
|
||||
WebRtc_UWord32 timeAvgMagnEnergy;
|
||||
WebRtc_UWord32 timeAvgMagnEnergyTmp;
|
||||
|
||||
WebRtc_UWord32 whiteNoiseLevel; //initial noise estimate
|
||||
WebRtc_UWord32 initMagnEst[HALF_ANAL_BLOCKL];//initial magnitude spectrum estimate
|
||||
WebRtc_Word32 pinkNoiseNumerator; //pink noise parameter: numerator
|
||||
WebRtc_Word32 pinkNoiseExp; //pink noise parameter: power of freq
|
||||
int minNorm; //smallest normalization factor
|
||||
int zeroInputSignal; //zero input signal flag
|
||||
|
||||
WebRtc_UWord32 prevNoiseU32[HALF_ANAL_BLOCKL]; //noise spectrum from previous frame
|
||||
WebRtc_UWord16 prevMagnU16[HALF_ANAL_BLOCKL]; //magnitude spectrum from previous frame
|
||||
WebRtc_Word16 priorNonSpeechProb; //prior speech/noise probability // Q14
|
||||
|
||||
int blockIndex; //frame index counter
|
||||
int modelUpdate; //parameter for updating or estimating thresholds/weights for prior model
|
||||
int cntThresUpdate;
|
||||
|
||||
//histograms for parameter estimation
|
||||
WebRtc_Word16 histLrt[HIST_PAR_EST];
|
||||
WebRtc_Word16 histSpecFlat[HIST_PAR_EST];
|
||||
WebRtc_Word16 histSpecDiff[HIST_PAR_EST];
|
||||
|
||||
//quantities for high band estimate
|
||||
WebRtc_Word16 dataBufHBFX[ANAL_BLOCKL_MAX]; /* Q0 */
|
||||
|
||||
int qNoise;
|
||||
int prevQNoise;
|
||||
int prevQMagn;
|
||||
int blockLen10ms;
|
||||
|
||||
WebRtc_Word16 real[ANAL_BLOCKL_MAX];
|
||||
WebRtc_Word16 imag[ANAL_BLOCKL_MAX];
|
||||
WebRtc_Word32 energyIn;
|
||||
int scaleEnergyIn;
|
||||
int normData;
|
||||
|
||||
} NsxInst_t;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNsx_InitCore(...)
|
||||
*
|
||||
* This function initializes a noise suppression instance
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - fs : Sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - inst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
WebRtc_Word32 WebRtcNsx_InitCore(NsxInst_t* inst, WebRtc_UWord32 fs);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNsx_set_policy_core(...)
|
||||
*
|
||||
* This changes the aggressiveness of the noise suppression method.
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - mode : 0: Mild (6 dB), 1: Medium (10 dB), 2: Aggressive (15 dB)
|
||||
*
|
||||
* Output:
|
||||
* - NS_inst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_set_policy_core(NsxInst_t* inst, int mode);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNsx_ProcessCore
|
||||
*
|
||||
* Do noise suppression.
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - inFrameLow : Input speech frame for lower band
|
||||
* - inFrameHigh : Input speech frame for higher band
|
||||
*
|
||||
* Output:
|
||||
* - inst : Updated instance
|
||||
* - outFrameLow : Output speech frame for lower band
|
||||
* - outFrameHigh : Output speech frame for higher band
|
||||
*
|
||||
* Return value : 0 - OK
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_ProcessCore(NsxInst_t* inst, short* inFrameLow, short* inFrameHigh,
|
||||
short* outFrameLow, short* outFrameHigh);
|
||||
|
||||
/****************************************************************************
|
||||
* Internal functions and variable declarations shared with optimized code.
|
||||
*/
|
||||
void WebRtcNsx_UpdateNoiseEstimate(NsxInst_t* inst, int offset);
|
||||
|
||||
void WebRtcNsx_NoiseEstimation(NsxInst_t* inst, WebRtc_UWord16* magn, WebRtc_UWord32* noise,
|
||||
WebRtc_Word16* qNoise);
|
||||
|
||||
extern const WebRtc_Word16 WebRtcNsx_kLogTable[9];
|
||||
extern const WebRtc_Word16 WebRtcNsx_kLogTableFrac[256];
|
||||
extern const WebRtc_Word16 WebRtcNsx_kCounterDiv[201];
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_CORE_H_
|
||||
240
webrtc/modules/audio_processing/ns/nsx_core_neon.c
Normal file
240
webrtc/modules/audio_processing/ns/nsx_core_neon.c
Normal file
@ -0,0 +1,240 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#if defined(WEBRTC_ARCH_ARM_NEON) && defined(WEBRTC_ANDROID)
|
||||
|
||||
#include "nsx_core.h"
|
||||
|
||||
#include <arm_neon.h>
|
||||
#include <assert.h>
|
||||
|
||||
void WebRtcNsx_NoiseEstimation(NsxInst_t* inst, WebRtc_UWord16* magn, WebRtc_UWord32* noise,
|
||||
WebRtc_Word16* qNoise) {
|
||||
WebRtc_Word32 numerator;
|
||||
|
||||
WebRtc_Word16 lmagn[HALF_ANAL_BLOCKL], counter, countDiv, countProd, delta, zeros, frac;
|
||||
WebRtc_Word16 log2, tabind, logval, tmp16, tmp16no1, tmp16no2;
|
||||
WebRtc_Word16 log2Const = 22713;
|
||||
WebRtc_Word16 widthFactor = 21845;
|
||||
|
||||
int i, s, offset;
|
||||
|
||||
numerator = FACTOR_Q16;
|
||||
|
||||
tabind = inst->stages - inst->normData;
|
||||
assert(tabind < 9);
|
||||
assert(tabind > -9);
|
||||
if (tabind < 0) {
|
||||
logval = -WebRtcNsx_kLogTable[-tabind];
|
||||
} else {
|
||||
logval = WebRtcNsx_kLogTable[tabind];
|
||||
}
|
||||
|
||||
int16x8_t logval_16x8 = vdupq_n_s16(logval);
|
||||
|
||||
// lmagn(i)=log(magn(i))=log(2)*log2(magn(i))
|
||||
// magn is in Q(-stages), and the real lmagn values are:
|
||||
// real_lmagn(i)=log(magn(i)*2^stages)=log(magn(i))+log(2^stages)
|
||||
// lmagn in Q8
|
||||
for (i = 0; i < inst->magnLen; i++) {
|
||||
if (magn[i]) {
|
||||
zeros = WebRtcSpl_NormU32((WebRtc_UWord32)magn[i]);
|
||||
frac = (WebRtc_Word16)((((WebRtc_UWord32)magn[i] << zeros) & 0x7FFFFFFF) >> 23);
|
||||
assert(frac < 256);
|
||||
// log2(magn(i))
|
||||
log2 = (WebRtc_Word16)(((31 - zeros) << 8) + WebRtcNsx_kLogTableFrac[frac]);
|
||||
// log2(magn(i))*log(2)
|
||||
lmagn[i] = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16_RSFT(log2, log2Const, 15);
|
||||
// + log(2^stages)
|
||||
lmagn[i] += logval;
|
||||
} else {
|
||||
lmagn[i] = logval;
|
||||
}
|
||||
}
|
||||
|
||||
int16x4_t Q3_16x4 = vdup_n_s16(3);
|
||||
int16x8_t WIDTHQ8_16x8 = vdupq_n_s16(WIDTH_Q8);
|
||||
int16x8_t WIDTHFACTOR_16x8 = vdupq_n_s16(widthFactor);
|
||||
|
||||
WebRtc_Word16 factor = FACTOR_Q7;
|
||||
if (inst->blockIndex < END_STARTUP_LONG)
|
||||
factor = FACTOR_Q7_STARTUP;
|
||||
|
||||
// Loop over simultaneous estimates
|
||||
for (s = 0; s < SIMULT; s++) {
|
||||
offset = s * inst->magnLen;
|
||||
|
||||
// Get counter values from state
|
||||
counter = inst->noiseEstCounter[s];
|
||||
assert(counter < 201);
|
||||
countDiv = WebRtcNsx_kCounterDiv[counter];
|
||||
countProd = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16(counter, countDiv);
|
||||
|
||||
// quant_est(...)
|
||||
WebRtc_Word16 deltaBuff[8];
|
||||
int16x4_t tmp16x4_0;
|
||||
int16x4_t tmp16x4_1;
|
||||
int16x4_t countDiv_16x4 = vdup_n_s16(countDiv);
|
||||
int16x8_t countProd_16x8 = vdupq_n_s16(countProd);
|
||||
int16x8_t tmp16x8_0 = vdupq_n_s16(countDiv);
|
||||
int16x8_t prod16x8 = vqrdmulhq_s16(WIDTHFACTOR_16x8, tmp16x8_0);
|
||||
int16x8_t tmp16x8_1;
|
||||
int16x8_t tmp16x8_2;
|
||||
int16x8_t tmp16x8_3;
|
||||
int16x8_t tmp16x8_4;
|
||||
int16x8_t tmp16x8_5;
|
||||
int32x4_t tmp32x4;
|
||||
|
||||
for (i = 0; i < inst->magnLen - 7; i += 8) {
|
||||
// Compute delta.
|
||||
// Smaller step size during startup. This prevents from using
|
||||
// unrealistic values causing overflow.
|
||||
tmp16x8_0 = vdupq_n_s16(factor);
|
||||
vst1q_s16(deltaBuff, tmp16x8_0);
|
||||
|
||||
int j;
|
||||
for (j = 0; j < 8; j++) {
|
||||
if (inst->noiseEstDensity[offset + i + j] > 512) {
|
||||
deltaBuff[j] = WebRtcSpl_DivW32W16ResW16(
|
||||
numerator, inst->noiseEstDensity[offset + i + j]);
|
||||
}
|
||||
}
|
||||
|
||||
// Update log quantile estimate
|
||||
|
||||
// tmp16 = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16_RSFT(delta, countDiv, 14);
|
||||
tmp32x4 = vmull_s16(vld1_s16(&deltaBuff[0]), countDiv_16x4);
|
||||
tmp16x4_1 = vshrn_n_s32(tmp32x4, 14);
|
||||
tmp32x4 = vmull_s16(vld1_s16(&deltaBuff[4]), countDiv_16x4);
|
||||
tmp16x4_0 = vshrn_n_s32(tmp32x4, 14);
|
||||
tmp16x8_0 = vcombine_s16(tmp16x4_1, tmp16x4_0); // Keep for several lines.
|
||||
|
||||
// prepare for the "if" branch
|
||||
// tmp16 += 2;
|
||||
// tmp16_1 = (Word16)(tmp16>>2);
|
||||
tmp16x8_1 = vrshrq_n_s16(tmp16x8_0, 2);
|
||||
|
||||
// inst->noiseEstLogQuantile[offset+i] + tmp16_1;
|
||||
tmp16x8_2 = vld1q_s16(&inst->noiseEstLogQuantile[offset + i]); // Keep
|
||||
tmp16x8_1 = vaddq_s16(tmp16x8_2, tmp16x8_1); // Keep for several lines
|
||||
|
||||
// Prepare for the "else" branch
|
||||
// tmp16 += 1;
|
||||
// tmp16_1 = (Word16)(tmp16>>1);
|
||||
tmp16x8_0 = vrshrq_n_s16(tmp16x8_0, 1);
|
||||
|
||||
// tmp16_2 = (Word16)WEBRTC_SPL_MUL_16_16_RSFT(tmp16_1,3,1);
|
||||
tmp32x4 = vmull_s16(vget_low_s16(tmp16x8_0), Q3_16x4);
|
||||
tmp16x4_1 = vshrn_n_s32(tmp32x4, 1);
|
||||
|
||||
// tmp16_2 = (Word16)WEBRTC_SPL_MUL_16_16_RSFT(tmp16_1,3,1);
|
||||
tmp32x4 = vmull_s16(vget_high_s16(tmp16x8_0), Q3_16x4);
|
||||
tmp16x4_0 = vshrn_n_s32(tmp32x4, 1);
|
||||
|
||||
// inst->noiseEstLogQuantile[offset + i] - tmp16_2;
|
||||
tmp16x8_0 = vcombine_s16(tmp16x4_1, tmp16x4_0); // keep
|
||||
tmp16x8_0 = vsubq_s16(tmp16x8_2, tmp16x8_0);
|
||||
|
||||
// logval is the smallest fixed point representation we can have. Values below
|
||||
// that will correspond to values in the interval [0, 1], which can't possibly
|
||||
// occur.
|
||||
tmp16x8_0 = vmaxq_s16(tmp16x8_0, logval_16x8);
|
||||
|
||||
// Do the if-else branches:
|
||||
tmp16x8_3 = vld1q_s16(&lmagn[i]); // keep for several lines
|
||||
tmp16x8_5 = vsubq_s16(tmp16x8_3, tmp16x8_2);
|
||||
__asm__("vcgt.s16 %q0, %q1, #0"::"w"(tmp16x8_4), "w"(tmp16x8_5));
|
||||
__asm__("vbit %q0, %q1, %q2"::"w"(tmp16x8_2), "w"(tmp16x8_1), "w"(tmp16x8_4));
|
||||
__asm__("vbif %q0, %q1, %q2"::"w"(tmp16x8_2), "w"(tmp16x8_0), "w"(tmp16x8_4));
|
||||
vst1q_s16(&inst->noiseEstLogQuantile[offset + i], tmp16x8_2);
|
||||
|
||||
// Update density estimate
|
||||
// tmp16_1 + tmp16_2
|
||||
tmp16x8_1 = vld1q_s16(&inst->noiseEstDensity[offset + i]);
|
||||
tmp16x8_0 = vqrdmulhq_s16(tmp16x8_1, countProd_16x8);
|
||||
tmp16x8_0 = vaddq_s16(tmp16x8_0, prod16x8);
|
||||
|
||||
// lmagn[i] - inst->noiseEstLogQuantile[offset + i]
|
||||
tmp16x8_3 = vsubq_s16(tmp16x8_3, tmp16x8_2);
|
||||
tmp16x8_3 = vabsq_s16(tmp16x8_3);
|
||||
tmp16x8_4 = vcgtq_s16(WIDTHQ8_16x8, tmp16x8_3);
|
||||
__asm__("vbit %q0, %q1, %q2"::"w"(tmp16x8_1), "w"(tmp16x8_0), "w"(tmp16x8_4));
|
||||
vst1q_s16(&inst->noiseEstDensity[offset + i], tmp16x8_1);
|
||||
} // End loop over magnitude spectrum
|
||||
|
||||
for (; i < inst->magnLen; i++) {
|
||||
// compute delta
|
||||
if (inst->noiseEstDensity[offset + i] > 512) {
|
||||
delta = WebRtcSpl_DivW32W16ResW16(numerator,
|
||||
inst->noiseEstDensity[offset + i]);
|
||||
} else {
|
||||
delta = FACTOR_Q7;
|
||||
if (inst->blockIndex < END_STARTUP_LONG) {
|
||||
// Smaller step size during startup. This prevents from using
|
||||
// unrealistic values causing overflow.
|
||||
delta = FACTOR_Q7_STARTUP;
|
||||
}
|
||||
}
|
||||
|
||||
// update log quantile estimate
|
||||
tmp16 = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16_RSFT(delta, countDiv, 14);
|
||||
if (lmagn[i] > inst->noiseEstLogQuantile[offset + i]) {
|
||||
// +=QUANTILE*delta/(inst->counter[s]+1) QUANTILE=0.25, =1 in Q2
|
||||
// CounterDiv=1/(inst->counter[s]+1) in Q15
|
||||
tmp16 += 2;
|
||||
tmp16no1 = WEBRTC_SPL_RSHIFT_W16(tmp16, 2);
|
||||
inst->noiseEstLogQuantile[offset + i] += tmp16no1;
|
||||
} else {
|
||||
tmp16 += 1;
|
||||
tmp16no1 = WEBRTC_SPL_RSHIFT_W16(tmp16, 1);
|
||||
// *(1-QUANTILE), in Q2 QUANTILE=0.25, 1-0.25=0.75=3 in Q2
|
||||
tmp16no2 = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16_RSFT(tmp16no1, 3, 1);
|
||||
inst->noiseEstLogQuantile[offset + i] -= tmp16no2;
|
||||
if (inst->noiseEstLogQuantile[offset + i] < logval) {
|
||||
// logval is the smallest fixed point representation we can have.
|
||||
// Values below that will correspond to values in the interval
|
||||
// [0, 1], which can't possibly occur.
|
||||
inst->noiseEstLogQuantile[offset + i] = logval;
|
||||
}
|
||||
}
|
||||
|
||||
// update density estimate
|
||||
if (WEBRTC_SPL_ABS_W16(lmagn[i] - inst->noiseEstLogQuantile[offset + i])
|
||||
< WIDTH_Q8) {
|
||||
tmp16no1 = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(
|
||||
inst->noiseEstDensity[offset + i], countProd, 15);
|
||||
tmp16no2 = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(
|
||||
widthFactor, countDiv, 15);
|
||||
inst->noiseEstDensity[offset + i] = tmp16no1 + tmp16no2;
|
||||
}
|
||||
} // end loop over magnitude spectrum
|
||||
|
||||
if (counter >= END_STARTUP_LONG) {
|
||||
inst->noiseEstCounter[s] = 0;
|
||||
if (inst->blockIndex >= END_STARTUP_LONG) {
|
||||
WebRtcNsx_UpdateNoiseEstimate(inst, offset);
|
||||
}
|
||||
}
|
||||
inst->noiseEstCounter[s]++;
|
||||
|
||||
} // end loop over simultaneous estimates
|
||||
|
||||
// Sequentially update the noise during startup
|
||||
if (inst->blockIndex < END_STARTUP_LONG) {
|
||||
WebRtcNsx_UpdateNoiseEstimate(inst, offset);
|
||||
}
|
||||
|
||||
for (i = 0; i < inst->magnLen; i++) {
|
||||
noise[i] = (WebRtc_UWord32)(inst->noiseEstQuantile[i]); // Q(qNoise)
|
||||
}
|
||||
(*qNoise) = (WebRtc_Word16)inst->qNoise;
|
||||
}
|
||||
|
||||
#endif // defined(WEBRTC_ARCH_ARM_NEON) && defined(WEBRTC_ANDROID)
|
||||
59
webrtc/modules/audio_processing/ns/nsx_defines.h
Normal file
59
webrtc/modules/audio_processing/ns/nsx_defines.h
Normal file
@ -0,0 +1,59 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
|
||||
|
||||
#define ANAL_BLOCKL_MAX 256 // max analysis block length
|
||||
#define HALF_ANAL_BLOCKL 129 // half max analysis block length + 1
|
||||
#define SIMULT 3
|
||||
#define END_STARTUP_LONG 200
|
||||
#define END_STARTUP_SHORT 50
|
||||
#define FACTOR_Q16 (WebRtc_Word32)2621440 // 40 in Q16
|
||||
#define FACTOR_Q7 (WebRtc_Word16)5120 // 40 in Q7
|
||||
#define FACTOR_Q7_STARTUP (WebRtc_Word16)1024 // 8 in Q7
|
||||
#define WIDTH_Q8 3 // 0.01 in Q8 (or 25 )
|
||||
//PARAMETERS FOR NEW METHOD
|
||||
#define DD_PR_SNR_Q11 2007 // ~= Q11(0.98) DD update of prior SNR
|
||||
#define ONE_MINUS_DD_PR_SNR_Q11 41 // DD update of prior SNR
|
||||
#define SPECT_FLAT_TAVG_Q14 4915 // (0.30) tavg parameter for spectral flatness measure
|
||||
#define SPECT_DIFF_TAVG_Q8 77 // (0.30) tavg parameter for spectral flatness measure
|
||||
#define PRIOR_UPDATE_Q14 1638 // Q14(0.1) update parameter of prior model
|
||||
#define NOISE_UPDATE_Q8 26 // 26 ~= Q8(0.1) update parameter for noise
|
||||
// probability threshold for noise state in speech/noise likelihood
|
||||
#define ONE_MINUS_PROB_RANGE_Q8 205 // 205 ~= Q8(0.8)
|
||||
#define HIST_PAR_EST 1000 // histogram size for estimation of parameters
|
||||
//FEATURE EXTRACTION CONFIG
|
||||
//bin size of histogram
|
||||
#define BIN_SIZE_LRT 10
|
||||
//scale parameters: multiply dominant peaks of the histograms by scale factor to obtain
|
||||
// thresholds for prior model
|
||||
#define FACTOR_1_LRT_DIFF 6 //for LRT and spectral difference (5 times bigger)
|
||||
//for spectral_flatness: used when noise is flatter than speech (10 times bigger)
|
||||
#define FACTOR_2_FLAT_Q10 922
|
||||
//peak limit for spectral flatness (varies between 0 and 1)
|
||||
#define THRES_PEAK_FLAT 24 // * 2 * BIN_SIZE_FLAT_FX
|
||||
//limit on spacing of two highest peaks in histogram: spacing determined by bin size
|
||||
#define LIM_PEAK_SPACE_FLAT_DIFF 4 // * 2 * BIN_SIZE_DIFF_FX
|
||||
//limit on relevance of second peak:
|
||||
#define LIM_PEAK_WEIGHT_FLAT_DIFF 2
|
||||
#define THRES_FLUCT_LRT 10240 //=20 * inst->modelUpdate; fluctuation limit of LRT feat.
|
||||
//limit on the max and min values for the feature thresholds
|
||||
#define MAX_FLAT_Q10 38912 // * 2 * BIN_SIZE_FLAT_FX
|
||||
#define MIN_FLAT_Q10 4096 // * 2 * BIN_SIZE_FLAT_FX
|
||||
#define MAX_DIFF 100 // * 2 * BIN_SIZE_DIFF_FX
|
||||
#define MIN_DIFF 16 // * 2 * BIN_SIZE_DIFF_FX
|
||||
//criteria of weight of histogram peak to accept/reject feature
|
||||
#define THRES_WEIGHT_FLAT_DIFF 154//(int)(0.3*(inst->modelUpdate)) for flatness and difference
|
||||
//
|
||||
#define STAT_UPDATES 9 // Update every 512 = 1 << 9 block
|
||||
#define ONE_MINUS_GAMMA_PAUSE_Q8 13 // ~= Q8(0.05) update for conservative noise estimate
|
||||
#define GAMMA_NOISE_TRANS_AND_SPEECH_Q8 3 // ~= Q8(0.01) update for transition and noise region
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
|
||||
574
webrtc/modules/audio_processing/ns/windows_private.h
Normal file
574
webrtc/modules/audio_processing/ns/windows_private.h
Normal file
@ -0,0 +1,574 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_WINDOWS_PRIVATE_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_WINDOWS_PRIVATE_H_
|
||||
|
||||
// Hanning window for 4ms 16kHz
|
||||
static const float kHanning64w128[128] = {
|
||||
0.00000000000000f, 0.02454122852291f, 0.04906767432742f,
|
||||
0.07356456359967f, 0.09801714032956f, 0.12241067519922f,
|
||||
0.14673047445536f, 0.17096188876030f, 0.19509032201613f,
|
||||
0.21910124015687f, 0.24298017990326f, 0.26671275747490f,
|
||||
0.29028467725446f, 0.31368174039889f, 0.33688985339222f,
|
||||
0.35989503653499f, 0.38268343236509f, 0.40524131400499f,
|
||||
0.42755509343028f, 0.44961132965461f, 0.47139673682600f,
|
||||
0.49289819222978f, 0.51410274419322f, 0.53499761988710f,
|
||||
0.55557023301960f, 0.57580819141785f, 0.59569930449243f,
|
||||
0.61523159058063f, 0.63439328416365f, 0.65317284295378f,
|
||||
0.67155895484702f, 0.68954054473707f, 0.70710678118655f,
|
||||
0.72424708295147f, 0.74095112535496f, 0.75720884650648f,
|
||||
0.77301045336274f, 0.78834642762661f, 0.80320753148064f,
|
||||
0.81758481315158f, 0.83146961230255f, 0.84485356524971f,
|
||||
0.85772861000027f, 0.87008699110871f, 0.88192126434835f,
|
||||
0.89322430119552f, 0.90398929312344f, 0.91420975570353f,
|
||||
0.92387953251129f, 0.93299279883474f, 0.94154406518302f,
|
||||
0.94952818059304f, 0.95694033573221f, 0.96377606579544f,
|
||||
0.97003125319454f, 0.97570213003853f, 0.98078528040323f,
|
||||
0.98527764238894f, 0.98917650996478f, 0.99247953459871f,
|
||||
0.99518472667220f, 0.99729045667869f, 0.99879545620517f,
|
||||
0.99969881869620f, 1.00000000000000f,
|
||||
0.99969881869620f, 0.99879545620517f, 0.99729045667869f,
|
||||
0.99518472667220f, 0.99247953459871f, 0.98917650996478f,
|
||||
0.98527764238894f, 0.98078528040323f, 0.97570213003853f,
|
||||
0.97003125319454f, 0.96377606579544f, 0.95694033573221f,
|
||||
0.94952818059304f, 0.94154406518302f, 0.93299279883474f,
|
||||
0.92387953251129f, 0.91420975570353f, 0.90398929312344f,
|
||||
0.89322430119552f, 0.88192126434835f, 0.87008699110871f,
|
||||
0.85772861000027f, 0.84485356524971f, 0.83146961230255f,
|
||||
0.81758481315158f, 0.80320753148064f, 0.78834642762661f,
|
||||
0.77301045336274f, 0.75720884650648f, 0.74095112535496f,
|
||||
0.72424708295147f, 0.70710678118655f, 0.68954054473707f,
|
||||
0.67155895484702f, 0.65317284295378f, 0.63439328416365f,
|
||||
0.61523159058063f, 0.59569930449243f, 0.57580819141785f,
|
||||
0.55557023301960f, 0.53499761988710f, 0.51410274419322f,
|
||||
0.49289819222978f, 0.47139673682600f, 0.44961132965461f,
|
||||
0.42755509343028f, 0.40524131400499f, 0.38268343236509f,
|
||||
0.35989503653499f, 0.33688985339222f, 0.31368174039889f,
|
||||
0.29028467725446f, 0.26671275747490f, 0.24298017990326f,
|
||||
0.21910124015687f, 0.19509032201613f, 0.17096188876030f,
|
||||
0.14673047445536f, 0.12241067519922f, 0.09801714032956f,
|
||||
0.07356456359967f, 0.04906767432742f, 0.02454122852291f
|
||||
};
|
||||
|
||||
|
||||
|
||||
// hybrib Hanning & flat window
|
||||
static const float kBlocks80w128[128] = {
|
||||
(float)0.00000000, (float)0.03271908, (float)0.06540313, (float)0.09801714, (float)0.13052619,
|
||||
(float)0.16289547, (float)0.19509032, (float)0.22707626, (float)0.25881905, (float)0.29028468,
|
||||
(float)0.32143947, (float)0.35225005, (float)0.38268343, (float)0.41270703, (float)0.44228869,
|
||||
(float)0.47139674, (float)0.50000000, (float)0.52806785, (float)0.55557023, (float)0.58247770,
|
||||
(float)0.60876143, (float)0.63439328, (float)0.65934582, (float)0.68359230, (float)0.70710678,
|
||||
(float)0.72986407, (float)0.75183981, (float)0.77301045, (float)0.79335334, (float)0.81284668,
|
||||
(float)0.83146961, (float)0.84920218, (float)0.86602540, (float)0.88192126, (float)0.89687274,
|
||||
(float)0.91086382, (float)0.92387953, (float)0.93590593, (float)0.94693013, (float)0.95694034,
|
||||
(float)0.96592583, (float)0.97387698, (float)0.98078528, (float)0.98664333, (float)0.99144486,
|
||||
(float)0.99518473, (float)0.99785892, (float)0.99946459, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)0.99946459, (float)0.99785892, (float)0.99518473, (float)0.99144486,
|
||||
(float)0.98664333, (float)0.98078528, (float)0.97387698, (float)0.96592583, (float)0.95694034,
|
||||
(float)0.94693013, (float)0.93590593, (float)0.92387953, (float)0.91086382, (float)0.89687274,
|
||||
(float)0.88192126, (float)0.86602540, (float)0.84920218, (float)0.83146961, (float)0.81284668,
|
||||
(float)0.79335334, (float)0.77301045, (float)0.75183981, (float)0.72986407, (float)0.70710678,
|
||||
(float)0.68359230, (float)0.65934582, (float)0.63439328, (float)0.60876143, (float)0.58247770,
|
||||
(float)0.55557023, (float)0.52806785, (float)0.50000000, (float)0.47139674, (float)0.44228869,
|
||||
(float)0.41270703, (float)0.38268343, (float)0.35225005, (float)0.32143947, (float)0.29028468,
|
||||
(float)0.25881905, (float)0.22707626, (float)0.19509032, (float)0.16289547, (float)0.13052619,
|
||||
(float)0.09801714, (float)0.06540313, (float)0.03271908
|
||||
};
|
||||
|
||||
// hybrib Hanning & flat window
|
||||
static const float kBlocks160w256[256] = {
|
||||
(float)0.00000000, (float)0.01636173, (float)0.03271908, (float)0.04906767, (float)0.06540313,
|
||||
(float)0.08172107, (float)0.09801714, (float)0.11428696, (float)0.13052619, (float)0.14673047,
|
||||
(float)0.16289547, (float)0.17901686, (float)0.19509032, (float)0.21111155, (float)0.22707626,
|
||||
(float)0.24298018, (float)0.25881905, (float)0.27458862, (float)0.29028468, (float)0.30590302,
|
||||
(float)0.32143947, (float)0.33688985, (float)0.35225005, (float)0.36751594, (float)0.38268343,
|
||||
(float)0.39774847, (float)0.41270703, (float)0.42755509, (float)0.44228869, (float)0.45690388,
|
||||
(float)0.47139674, (float)0.48576339, (float)0.50000000, (float)0.51410274, (float)0.52806785,
|
||||
(float)0.54189158, (float)0.55557023, (float)0.56910015, (float)0.58247770, (float)0.59569930,
|
||||
(float)0.60876143, (float)0.62166057, (float)0.63439328, (float)0.64695615, (float)0.65934582,
|
||||
(float)0.67155895, (float)0.68359230, (float)0.69544264, (float)0.70710678, (float)0.71858162,
|
||||
(float)0.72986407, (float)0.74095113, (float)0.75183981, (float)0.76252720, (float)0.77301045,
|
||||
(float)0.78328675, (float)0.79335334, (float)0.80320753, (float)0.81284668, (float)0.82226822,
|
||||
(float)0.83146961, (float)0.84044840, (float)0.84920218, (float)0.85772861, (float)0.86602540,
|
||||
(float)0.87409034, (float)0.88192126, (float)0.88951608, (float)0.89687274, (float)0.90398929,
|
||||
(float)0.91086382, (float)0.91749450, (float)0.92387953, (float)0.93001722, (float)0.93590593,
|
||||
(float)0.94154407, (float)0.94693013, (float)0.95206268, (float)0.95694034, (float)0.96156180,
|
||||
(float)0.96592583, (float)0.97003125, (float)0.97387698, (float)0.97746197, (float)0.98078528,
|
||||
(float)0.98384601, (float)0.98664333, (float)0.98917651, (float)0.99144486, (float)0.99344778,
|
||||
(float)0.99518473, (float)0.99665524, (float)0.99785892, (float)0.99879546, (float)0.99946459,
|
||||
(float)0.99986614, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)0.99986614, (float)0.99946459, (float)0.99879546, (float)0.99785892,
|
||||
(float)0.99665524, (float)0.99518473, (float)0.99344778, (float)0.99144486, (float)0.98917651,
|
||||
(float)0.98664333, (float)0.98384601, (float)0.98078528, (float)0.97746197, (float)0.97387698,
|
||||
(float)0.97003125, (float)0.96592583, (float)0.96156180, (float)0.95694034, (float)0.95206268,
|
||||
(float)0.94693013, (float)0.94154407, (float)0.93590593, (float)0.93001722, (float)0.92387953,
|
||||
(float)0.91749450, (float)0.91086382, (float)0.90398929, (float)0.89687274, (float)0.88951608,
|
||||
(float)0.88192126, (float)0.87409034, (float)0.86602540, (float)0.85772861, (float)0.84920218,
|
||||
(float)0.84044840, (float)0.83146961, (float)0.82226822, (float)0.81284668, (float)0.80320753,
|
||||
(float)0.79335334, (float)0.78328675, (float)0.77301045, (float)0.76252720, (float)0.75183981,
|
||||
(float)0.74095113, (float)0.72986407, (float)0.71858162, (float)0.70710678, (float)0.69544264,
|
||||
(float)0.68359230, (float)0.67155895, (float)0.65934582, (float)0.64695615, (float)0.63439328,
|
||||
(float)0.62166057, (float)0.60876143, (float)0.59569930, (float)0.58247770, (float)0.56910015,
|
||||
(float)0.55557023, (float)0.54189158, (float)0.52806785, (float)0.51410274, (float)0.50000000,
|
||||
(float)0.48576339, (float)0.47139674, (float)0.45690388, (float)0.44228869, (float)0.42755509,
|
||||
(float)0.41270703, (float)0.39774847, (float)0.38268343, (float)0.36751594, (float)0.35225005,
|
||||
(float)0.33688985, (float)0.32143947, (float)0.30590302, (float)0.29028468, (float)0.27458862,
|
||||
(float)0.25881905, (float)0.24298018, (float)0.22707626, (float)0.21111155, (float)0.19509032,
|
||||
(float)0.17901686, (float)0.16289547, (float)0.14673047, (float)0.13052619, (float)0.11428696,
|
||||
(float)0.09801714, (float)0.08172107, (float)0.06540313, (float)0.04906767, (float)0.03271908,
|
||||
(float)0.01636173
|
||||
};
|
||||
|
||||
// hybrib Hanning & flat window: for 20ms
|
||||
static const float kBlocks320w512[512] = {
|
||||
(float)0.00000000, (float)0.00818114, (float)0.01636173, (float)0.02454123, (float)0.03271908,
|
||||
(float)0.04089475, (float)0.04906767, (float)0.05723732, (float)0.06540313, (float)0.07356456,
|
||||
(float)0.08172107, (float)0.08987211, (float)0.09801714, (float)0.10615561, (float)0.11428696,
|
||||
(float)0.12241068, (float)0.13052619, (float)0.13863297, (float)0.14673047, (float)0.15481816,
|
||||
(float)0.16289547, (float)0.17096189, (float)0.17901686, (float)0.18705985, (float)0.19509032,
|
||||
(float)0.20310773, (float)0.21111155, (float)0.21910124, (float)0.22707626, (float)0.23503609,
|
||||
(float)0.24298018, (float)0.25090801, (float)0.25881905, (float)0.26671276, (float)0.27458862,
|
||||
(float)0.28244610, (float)0.29028468, (float)0.29810383, (float)0.30590302, (float)0.31368174,
|
||||
(float)0.32143947, (float)0.32917568, (float)0.33688985, (float)0.34458148, (float)0.35225005,
|
||||
(float)0.35989504, (float)0.36751594, (float)0.37511224, (float)0.38268343, (float)0.39022901,
|
||||
(float)0.39774847, (float)0.40524131, (float)0.41270703, (float)0.42014512, (float)0.42755509,
|
||||
(float)0.43493645, (float)0.44228869, (float)0.44961133, (float)0.45690388, (float)0.46416584,
|
||||
(float)0.47139674, (float)0.47859608, (float)0.48576339, (float)0.49289819, (float)0.50000000,
|
||||
(float)0.50706834, (float)0.51410274, (float)0.52110274, (float)0.52806785, (float)0.53499762,
|
||||
(float)0.54189158, (float)0.54874927, (float)0.55557023, (float)0.56235401, (float)0.56910015,
|
||||
(float)0.57580819, (float)0.58247770, (float)0.58910822, (float)0.59569930, (float)0.60225052,
|
||||
(float)0.60876143, (float)0.61523159, (float)0.62166057, (float)0.62804795, (float)0.63439328,
|
||||
(float)0.64069616, (float)0.64695615, (float)0.65317284, (float)0.65934582, (float)0.66547466,
|
||||
(float)0.67155895, (float)0.67759830, (float)0.68359230, (float)0.68954054, (float)0.69544264,
|
||||
(float)0.70129818, (float)0.70710678, (float)0.71286806, (float)0.71858162, (float)0.72424708,
|
||||
(float)0.72986407, (float)0.73543221, (float)0.74095113, (float)0.74642045, (float)0.75183981,
|
||||
(float)0.75720885, (float)0.76252720, (float)0.76779452, (float)0.77301045, (float)0.77817464,
|
||||
(float)0.78328675, (float)0.78834643, (float)0.79335334, (float)0.79830715, (float)0.80320753,
|
||||
(float)0.80805415, (float)0.81284668, (float)0.81758481, (float)0.82226822, (float)0.82689659,
|
||||
(float)0.83146961, (float)0.83598698, (float)0.84044840, (float)0.84485357, (float)0.84920218,
|
||||
(float)0.85349396, (float)0.85772861, (float)0.86190585, (float)0.86602540, (float)0.87008699,
|
||||
(float)0.87409034, (float)0.87803519, (float)0.88192126, (float)0.88574831, (float)0.88951608,
|
||||
(float)0.89322430, (float)0.89687274, (float)0.90046115, (float)0.90398929, (float)0.90745693,
|
||||
(float)0.91086382, (float)0.91420976, (float)0.91749450, (float)0.92071783, (float)0.92387953,
|
||||
(float)0.92697940, (float)0.93001722, (float)0.93299280, (float)0.93590593, (float)0.93875641,
|
||||
(float)0.94154407, (float)0.94426870, (float)0.94693013, (float)0.94952818, (float)0.95206268,
|
||||
(float)0.95453345, (float)0.95694034, (float)0.95928317, (float)0.96156180, (float)0.96377607,
|
||||
(float)0.96592583, (float)0.96801094, (float)0.97003125, (float)0.97198664, (float)0.97387698,
|
||||
(float)0.97570213, (float)0.97746197, (float)0.97915640, (float)0.98078528, (float)0.98234852,
|
||||
(float)0.98384601, (float)0.98527764, (float)0.98664333, (float)0.98794298, (float)0.98917651,
|
||||
(float)0.99034383, (float)0.99144486, (float)0.99247953, (float)0.99344778, (float)0.99434953,
|
||||
(float)0.99518473, (float)0.99595331, (float)0.99665524, (float)0.99729046, (float)0.99785892,
|
||||
(float)0.99836060, (float)0.99879546, (float)0.99916346, (float)0.99946459, (float)0.99969882,
|
||||
(float)0.99986614, (float)0.99996653, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)0.99996653, (float)0.99986614, (float)0.99969882, (float)0.99946459,
|
||||
(float)0.99916346, (float)0.99879546, (float)0.99836060, (float)0.99785892, (float)0.99729046,
|
||||
(float)0.99665524, (float)0.99595331, (float)0.99518473, (float)0.99434953, (float)0.99344778,
|
||||
(float)0.99247953, (float)0.99144486, (float)0.99034383, (float)0.98917651, (float)0.98794298,
|
||||
(float)0.98664333, (float)0.98527764, (float)0.98384601, (float)0.98234852, (float)0.98078528,
|
||||
(float)0.97915640, (float)0.97746197, (float)0.97570213, (float)0.97387698, (float)0.97198664,
|
||||
(float)0.97003125, (float)0.96801094, (float)0.96592583, (float)0.96377607, (float)0.96156180,
|
||||
(float)0.95928317, (float)0.95694034, (float)0.95453345, (float)0.95206268, (float)0.94952818,
|
||||
(float)0.94693013, (float)0.94426870, (float)0.94154407, (float)0.93875641, (float)0.93590593,
|
||||
(float)0.93299280, (float)0.93001722, (float)0.92697940, (float)0.92387953, (float)0.92071783,
|
||||
(float)0.91749450, (float)0.91420976, (float)0.91086382, (float)0.90745693, (float)0.90398929,
|
||||
(float)0.90046115, (float)0.89687274, (float)0.89322430, (float)0.88951608, (float)0.88574831,
|
||||
(float)0.88192126, (float)0.87803519, (float)0.87409034, (float)0.87008699, (float)0.86602540,
|
||||
(float)0.86190585, (float)0.85772861, (float)0.85349396, (float)0.84920218, (float)0.84485357,
|
||||
(float)0.84044840, (float)0.83598698, (float)0.83146961, (float)0.82689659, (float)0.82226822,
|
||||
(float)0.81758481, (float)0.81284668, (float)0.80805415, (float)0.80320753, (float)0.79830715,
|
||||
(float)0.79335334, (float)0.78834643, (float)0.78328675, (float)0.77817464, (float)0.77301045,
|
||||
(float)0.76779452, (float)0.76252720, (float)0.75720885, (float)0.75183981, (float)0.74642045,
|
||||
(float)0.74095113, (float)0.73543221, (float)0.72986407, (float)0.72424708, (float)0.71858162,
|
||||
(float)0.71286806, (float)0.70710678, (float)0.70129818, (float)0.69544264, (float)0.68954054,
|
||||
(float)0.68359230, (float)0.67759830, (float)0.67155895, (float)0.66547466, (float)0.65934582,
|
||||
(float)0.65317284, (float)0.64695615, (float)0.64069616, (float)0.63439328, (float)0.62804795,
|
||||
(float)0.62166057, (float)0.61523159, (float)0.60876143, (float)0.60225052, (float)0.59569930,
|
||||
(float)0.58910822, (float)0.58247770, (float)0.57580819, (float)0.56910015, (float)0.56235401,
|
||||
(float)0.55557023, (float)0.54874927, (float)0.54189158, (float)0.53499762, (float)0.52806785,
|
||||
(float)0.52110274, (float)0.51410274, (float)0.50706834, (float)0.50000000, (float)0.49289819,
|
||||
(float)0.48576339, (float)0.47859608, (float)0.47139674, (float)0.46416584, (float)0.45690388,
|
||||
(float)0.44961133, (float)0.44228869, (float)0.43493645, (float)0.42755509, (float)0.42014512,
|
||||
(float)0.41270703, (float)0.40524131, (float)0.39774847, (float)0.39022901, (float)0.38268343,
|
||||
(float)0.37511224, (float)0.36751594, (float)0.35989504, (float)0.35225005, (float)0.34458148,
|
||||
(float)0.33688985, (float)0.32917568, (float)0.32143947, (float)0.31368174, (float)0.30590302,
|
||||
(float)0.29810383, (float)0.29028468, (float)0.28244610, (float)0.27458862, (float)0.26671276,
|
||||
(float)0.25881905, (float)0.25090801, (float)0.24298018, (float)0.23503609, (float)0.22707626,
|
||||
(float)0.21910124, (float)0.21111155, (float)0.20310773, (float)0.19509032, (float)0.18705985,
|
||||
(float)0.17901686, (float)0.17096189, (float)0.16289547, (float)0.15481816, (float)0.14673047,
|
||||
(float)0.13863297, (float)0.13052619, (float)0.12241068, (float)0.11428696, (float)0.10615561,
|
||||
(float)0.09801714, (float)0.08987211, (float)0.08172107, (float)0.07356456, (float)0.06540313,
|
||||
(float)0.05723732, (float)0.04906767, (float)0.04089475, (float)0.03271908, (float)0.02454123,
|
||||
(float)0.01636173, (float)0.00818114
|
||||
};
|
||||
|
||||
|
||||
// Hanning window: for 15ms at 16kHz with symmetric zeros
|
||||
static const float kBlocks240w512[512] = {
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00654494, (float)0.01308960, (float)0.01963369,
|
||||
(float)0.02617695, (float)0.03271908, (float)0.03925982, (float)0.04579887, (float)0.05233596,
|
||||
(float)0.05887080, (float)0.06540313, (float)0.07193266, (float)0.07845910, (float)0.08498218,
|
||||
(float)0.09150162, (float)0.09801714, (float)0.10452846, (float)0.11103531, (float)0.11753740,
|
||||
(float)0.12403446, (float)0.13052620, (float)0.13701233, (float)0.14349262, (float)0.14996676,
|
||||
(float)0.15643448, (float)0.16289547, (float)0.16934951, (float)0.17579629, (float)0.18223552,
|
||||
(float)0.18866697, (float)0.19509032, (float)0.20150533, (float)0.20791170, (float)0.21430916,
|
||||
(float)0.22069745, (float)0.22707628, (float)0.23344538, (float)0.23980446, (float)0.24615330,
|
||||
(float)0.25249159, (float)0.25881904, (float)0.26513544, (float)0.27144045, (float)0.27773386,
|
||||
(float)0.28401536, (float)0.29028466, (float)0.29654160, (float)0.30278578, (float)0.30901700,
|
||||
(float)0.31523499, (float)0.32143945, (float)0.32763019, (float)0.33380687, (float)0.33996925,
|
||||
(float)0.34611708, (float)0.35225007, (float)0.35836795, (float)0.36447051, (float)0.37055743,
|
||||
(float)0.37662852, (float)0.38268346, (float)0.38872197, (float)0.39474389, (float)0.40074885,
|
||||
(float)0.40673664, (float)0.41270703, (float)0.41865975, (float)0.42459452, (float)0.43051112,
|
||||
(float)0.43640924, (float)0.44228873, (float)0.44814920, (float)0.45399052, (float)0.45981237,
|
||||
(float)0.46561453, (float)0.47139674, (float)0.47715878, (float)0.48290035, (float)0.48862126,
|
||||
(float)0.49432120, (float)0.50000000, (float)0.50565743, (float)0.51129311, (float)0.51690692,
|
||||
(float)0.52249855, (float)0.52806789, (float)0.53361452, (float)0.53913832, (float)0.54463905,
|
||||
(float)0.55011642, (float)0.55557024, (float)0.56100029, (float)0.56640625, (float)0.57178795,
|
||||
(float)0.57714522, (float)0.58247769, (float)0.58778524, (float)0.59306765, (float)0.59832460,
|
||||
(float)0.60355598, (float)0.60876143, (float)0.61394083, (float)0.61909395, (float)0.62422055,
|
||||
(float)0.62932038, (float)0.63439333, (float)0.63943899, (float)0.64445734, (float)0.64944810,
|
||||
(float)0.65441096, (float)0.65934587, (float)0.66425246, (float)0.66913062, (float)0.67398012,
|
||||
(float)0.67880076, (float)0.68359232, (float)0.68835455, (float)0.69308740, (float)0.69779050,
|
||||
(float)0.70246369, (float)0.70710677, (float)0.71171963, (float)0.71630198, (float)0.72085363,
|
||||
(float)0.72537440, (float)0.72986406, (float)0.73432255, (float)0.73874950, (float)0.74314487,
|
||||
(float)0.74750835, (float)0.75183982, (float)0.75613910, (float)0.76040596, (float)0.76464027,
|
||||
(float)0.76884186, (float)0.77301043, (float)0.77714598, (float)0.78124821, (float)0.78531694,
|
||||
(float)0.78935206, (float)0.79335338, (float)0.79732066, (float)0.80125386, (float)0.80515265,
|
||||
(float)0.80901700, (float)0.81284672, (float)0.81664157, (float)0.82040149, (float)0.82412618,
|
||||
(float)0.82781565, (float)0.83146966, (float)0.83508795, (float)0.83867061, (float)0.84221727,
|
||||
(float)0.84572780, (float)0.84920216, (float)0.85264021, (float)0.85604161, (float)0.85940641,
|
||||
(float)0.86273444, (float)0.86602545, (float)0.86927933, (float)0.87249607, (float)0.87567532,
|
||||
(float)0.87881714, (float)0.88192129, (float)0.88498765, (float)0.88801610, (float)0.89100653,
|
||||
(float)0.89395881, (float)0.89687276, (float)0.89974827, (float)0.90258533, (float)0.90538365,
|
||||
(float)0.90814316, (float)0.91086388, (float)0.91354549, (float)0.91618794, (float)0.91879123,
|
||||
(float)0.92135513, (float)0.92387950, (float)0.92636442, (float)0.92880958, (float)0.93121493,
|
||||
(float)0.93358046, (float)0.93590593, (float)0.93819135, (float)0.94043654, (float)0.94264150,
|
||||
(float)0.94480604, (float)0.94693011, (float)0.94901365, (float)0.95105654, (float)0.95305866,
|
||||
(float)0.95501995, (float)0.95694035, (float)0.95881975, (float)0.96065807, (float)0.96245527,
|
||||
(float)0.96421117, (float)0.96592581, (float)0.96759909, (float)0.96923089, (float)0.97082120,
|
||||
(float)0.97236991, (float)0.97387701, (float)0.97534233, (float)0.97676587, (float)0.97814763,
|
||||
(float)0.97948742, (float)0.98078531, (float)0.98204112, (float)0.98325491, (float)0.98442656,
|
||||
(float)0.98555607, (float)0.98664331, (float)0.98768836, (float)0.98869103, (float)0.98965138,
|
||||
(float)0.99056935, (float)0.99144489, (float)0.99227792, (float)0.99306846, (float)0.99381649,
|
||||
(float)0.99452192, (float)0.99518472, (float)0.99580491, (float)0.99638247, (float)0.99691731,
|
||||
(float)0.99740952, (float)0.99785894, (float)0.99826562, (float)0.99862951, (float)0.99895066,
|
||||
(float)0.99922901, (float)0.99946457, (float)0.99965733, (float)0.99980724, (float)0.99991435,
|
||||
(float)0.99997860, (float)1.00000000, (float)0.99997860, (float)0.99991435, (float)0.99980724,
|
||||
(float)0.99965733, (float)0.99946457, (float)0.99922901, (float)0.99895066, (float)0.99862951,
|
||||
(float)0.99826562, (float)0.99785894, (float)0.99740946, (float)0.99691731, (float)0.99638247,
|
||||
(float)0.99580491, (float)0.99518472, (float)0.99452192, (float)0.99381644, (float)0.99306846,
|
||||
(float)0.99227792, (float)0.99144489, (float)0.99056935, (float)0.98965138, (float)0.98869103,
|
||||
(float)0.98768836, (float)0.98664331, (float)0.98555607, (float)0.98442656, (float)0.98325491,
|
||||
(float)0.98204112, (float)0.98078525, (float)0.97948742, (float)0.97814757, (float)0.97676587,
|
||||
(float)0.97534227, (float)0.97387695, (float)0.97236991, (float)0.97082120, (float)0.96923089,
|
||||
(float)0.96759909, (float)0.96592581, (float)0.96421117, (float)0.96245521, (float)0.96065807,
|
||||
(float)0.95881969, (float)0.95694029, (float)0.95501995, (float)0.95305860, (float)0.95105648,
|
||||
(float)0.94901365, (float)0.94693011, (float)0.94480604, (float)0.94264150, (float)0.94043654,
|
||||
(float)0.93819129, (float)0.93590593, (float)0.93358046, (float)0.93121493, (float)0.92880952,
|
||||
(float)0.92636436, (float)0.92387950, (float)0.92135507, (float)0.91879123, (float)0.91618794,
|
||||
(float)0.91354543, (float)0.91086382, (float)0.90814310, (float)0.90538365, (float)0.90258527,
|
||||
(float)0.89974827, (float)0.89687276, (float)0.89395875, (float)0.89100647, (float)0.88801610,
|
||||
(float)0.88498759, (float)0.88192123, (float)0.87881714, (float)0.87567532, (float)0.87249595,
|
||||
(float)0.86927933, (float)0.86602539, (float)0.86273432, (float)0.85940641, (float)0.85604161,
|
||||
(float)0.85264009, (float)0.84920216, (float)0.84572780, (float)0.84221715, (float)0.83867055,
|
||||
(float)0.83508795, (float)0.83146954, (float)0.82781565, (float)0.82412612, (float)0.82040137,
|
||||
(float)0.81664157, (float)0.81284660, (float)0.80901700, (float)0.80515265, (float)0.80125374,
|
||||
(float)0.79732066, (float)0.79335332, (float)0.78935200, (float)0.78531694, (float)0.78124815,
|
||||
(float)0.77714586, (float)0.77301049, (float)0.76884180, (float)0.76464021, (float)0.76040596,
|
||||
(float)0.75613904, (float)0.75183970, (float)0.74750835, (float)0.74314481, (float)0.73874938,
|
||||
(float)0.73432249, (float)0.72986400, (float)0.72537428, (float)0.72085363, (float)0.71630186,
|
||||
(float)0.71171951, (float)0.70710677, (float)0.70246363, (float)0.69779032, (float)0.69308734,
|
||||
(float)0.68835449, (float)0.68359220, (float)0.67880070, (float)0.67398006, (float)0.66913044,
|
||||
(float)0.66425240, (float)0.65934575, (float)0.65441096, (float)0.64944804, (float)0.64445722,
|
||||
(float)0.63943905, (float)0.63439327, (float)0.62932026, (float)0.62422055, (float)0.61909389,
|
||||
(float)0.61394072, (float)0.60876143, (float)0.60355592, (float)0.59832448, (float)0.59306765,
|
||||
(float)0.58778518, (float)0.58247757, (float)0.57714522, (float)0.57178789, (float)0.56640613,
|
||||
(float)0.56100023, (float)0.55557019, (float)0.55011630, (float)0.54463905, (float)0.53913826,
|
||||
(float)0.53361434, (float)0.52806783, (float)0.52249849, (float)0.51690674, (float)0.51129305,
|
||||
(float)0.50565726, (float)0.50000006, (float)0.49432117, (float)0.48862115, (float)0.48290038,
|
||||
(float)0.47715873, (float)0.47139663, (float)0.46561456, (float)0.45981231, (float)0.45399037,
|
||||
(float)0.44814920, (float)0.44228864, (float)0.43640912, (float)0.43051112, (float)0.42459446,
|
||||
(float)0.41865960, (float)0.41270703, (float)0.40673658, (float)0.40074870, (float)0.39474386,
|
||||
(float)0.38872188, (float)0.38268328, (float)0.37662849, (float)0.37055734, (float)0.36447033,
|
||||
(float)0.35836792, (float)0.35224995, (float)0.34611690, (float)0.33996922, (float)0.33380675,
|
||||
(float)0.32763001, (float)0.32143945, (float)0.31523487, (float)0.30901679, (float)0.30278572,
|
||||
(float)0.29654145, (float)0.29028472, (float)0.28401530, (float)0.27773371, (float)0.27144048,
|
||||
(float)0.26513538, (float)0.25881892, (float)0.25249159, (float)0.24615324, (float)0.23980433,
|
||||
(float)0.23344538, (float)0.22707619, (float)0.22069728, (float)0.21430916, (float)0.20791161,
|
||||
(float)0.20150517, (float)0.19509031, (float)0.18866688, (float)0.18223536, (float)0.17579627,
|
||||
(float)0.16934940, (float)0.16289529, (float)0.15643445, (float)0.14996666, (float)0.14349243,
|
||||
(float)0.13701232, (float)0.13052608, (float)0.12403426, (float)0.11753736, (float)0.11103519,
|
||||
(float)0.10452849, (float)0.09801710, (float)0.09150149, (float)0.08498220, (float)0.07845904,
|
||||
(float)0.07193252, (float)0.06540315, (float)0.05887074, (float)0.05233581, (float)0.04579888,
|
||||
(float)0.03925974, (float)0.03271893, (float)0.02617695, (float)0.01963361, (float)0.01308943,
|
||||
(float)0.00654493, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000
|
||||
};
|
||||
|
||||
|
||||
// Hanning window: for 30ms with 1024 fft with symmetric zeros at 16kHz
|
||||
static const float kBlocks480w1024[1024] = {
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00327249, (float)0.00654494,
|
||||
(float)0.00981732, (float)0.01308960, (float)0.01636173, (float)0.01963369, (float)0.02290544,
|
||||
(float)0.02617695, (float)0.02944817, (float)0.03271908, (float)0.03598964, (float)0.03925982,
|
||||
(float)0.04252957, (float)0.04579887, (float)0.04906768, (float)0.05233596, (float)0.05560368,
|
||||
(float)0.05887080, (float)0.06213730, (float)0.06540313, (float)0.06866825, (float)0.07193266,
|
||||
(float)0.07519628, (float)0.07845910, (float)0.08172107, (float)0.08498218, (float)0.08824237,
|
||||
(float)0.09150162, (float)0.09475989, (float)0.09801714, (float)0.10127335, (float)0.10452846,
|
||||
(float)0.10778246, (float)0.11103531, (float)0.11428697, (float)0.11753740, (float)0.12078657,
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||||
(float)0.60094339, (float)0.59832448, (float)0.59569913, (float)0.59306765, (float)0.59042960,
|
||||
(float)0.58778518, (float)0.58513451, (float)0.58247757, (float)0.57981461, (float)0.57714522,
|
||||
(float)0.57446963, (float)0.57178789, (float)0.56910002, (float)0.56640613, (float)0.56370628,
|
||||
(float)0.56100023, (float)0.55828822, (float)0.55557019, (float)0.55284619, (float)0.55011630,
|
||||
(float)0.54738069, (float)0.54463905, (float)0.54189152, (float)0.53913826, (float)0.53637916,
|
||||
(float)0.53361434, (float)0.53084403, (float)0.52806783, (float)0.52528596, (float)0.52249849,
|
||||
(float)0.51970541, (float)0.51690674, (float)0.51410276, (float)0.51129305, (float)0.50847787,
|
||||
(float)0.50565726, (float)0.50283122, (float)0.50000006, (float)0.49716327, (float)0.49432117,
|
||||
(float)0.49147379, (float)0.48862115, (float)0.48576325, (float)0.48290038, (float)0.48003212,
|
||||
(float)0.47715873, (float)0.47428021, (float)0.47139663, (float)0.46850798, (float)0.46561456,
|
||||
(float)0.46271589, (float)0.45981231, (float)0.45690379, (float)0.45399037, (float)0.45107210,
|
||||
(float)0.44814920, (float)0.44522130, (float)0.44228864, (float)0.43935123, (float)0.43640912,
|
||||
(float)0.43346232, (float)0.43051112, (float)0.42755505, (float)0.42459446, (float)0.42162928,
|
||||
(float)0.41865960, (float)0.41568545, (float)0.41270703, (float)0.40972400, (float)0.40673658,
|
||||
(float)0.40374479, (float)0.40074870, (float)0.39774850, (float)0.39474386, (float)0.39173496,
|
||||
(float)0.38872188, (float)0.38570464, (float)0.38268328, (float)0.37965804, (float)0.37662849,
|
||||
(float)0.37359491, (float)0.37055734, (float)0.36751580, (float)0.36447033, (float)0.36142117,
|
||||
(float)0.35836792, (float)0.35531086, (float)0.35224995, (float)0.34918529, (float)0.34611690,
|
||||
(float)0.34304500, (float)0.33996922, (float)0.33688980, (float)0.33380675, (float)0.33072016,
|
||||
(float)0.32763001, (float)0.32453656, (float)0.32143945, (float)0.31833887, (float)0.31523487,
|
||||
(float)0.31212750, (float)0.30901679, (float)0.30590302, (float)0.30278572, (float)0.29966521,
|
||||
(float)0.29654145, (float)0.29341453, (float)0.29028472, (float)0.28715155, (float)0.28401530,
|
||||
(float)0.28087601, (float)0.27773371, (float)0.27458847, (float)0.27144048, (float)0.26828936,
|
||||
(float)0.26513538, (float)0.26197854, (float)0.25881892, (float)0.25565651, (float)0.25249159,
|
||||
(float)0.24932374, (float)0.24615324, (float)0.24298008, (float)0.23980433, (float)0.23662600,
|
||||
(float)0.23344538, (float)0.23026201, (float)0.22707619, (float)0.22388794, (float)0.22069728,
|
||||
(float)0.21750426, (float)0.21430916, (float)0.21111152, (float)0.20791161, (float)0.20470949,
|
||||
(float)0.20150517, (float)0.19829892, (float)0.19509031, (float)0.19187963, (float)0.18866688,
|
||||
(float)0.18545210, (float)0.18223536, (float)0.17901689, (float)0.17579627, (float)0.17257376,
|
||||
(float)0.16934940, (float)0.16612324, (float)0.16289529, (float)0.15966584, (float)0.15643445,
|
||||
(float)0.15320137, (float)0.14996666, (float)0.14673033, (float)0.14349243, (float)0.14025325,
|
||||
(float)0.13701232, (float)0.13376991, (float)0.13052608, (float)0.12728085, (float)0.12403426,
|
||||
(float)0.12078657, (float)0.11753736, (float)0.11428688, (float)0.11103519, (float)0.10778230,
|
||||
(float)0.10452849, (float)0.10127334, (float)0.09801710, (float)0.09475980, (float)0.09150149,
|
||||
(float)0.08824220, (float)0.08498220, (float)0.08172106, (float)0.07845904, (float)0.07519618,
|
||||
(float)0.07193252, (float)0.06866808, (float)0.06540315, (float)0.06213728, (float)0.05887074,
|
||||
(float)0.05560357, (float)0.05233581, (float)0.04906749, (float)0.04579888, (float)0.04252954,
|
||||
(float)0.03925974, (float)0.03598953, (float)0.03271893, (float)0.02944798, (float)0.02617695,
|
||||
(float)0.02290541, (float)0.01963361, (float)0.01636161, (float)0.01308943, (float)0.00981712,
|
||||
(float)0.00654493, (float)0.00327244, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000
|
||||
};
|
||||
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_WINDOWS_PRIVATE_H_
|
||||
Reference in New Issue
Block a user