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Diffstat (limited to 'src/modules/audio_processing/ns/main/source/nsx_defines.h')
| -rw-r--r-- | src/modules/audio_processing/ns/main/source/nsx_defines.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/modules/audio_processing/ns/main/source/nsx_defines.h b/src/modules/audio_processing/ns/main/source/nsx_defines.h new file mode 100644 index 0000000000..58796b9a3f --- /dev/null +++ b/src/modules/audio_processing/ns/main/source/nsx_defines.h @@ -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. + */ + +#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 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_ |