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Diffstat (limited to 'third_party/webrtc/src/webrtc/modules/audio_processing/ns/nsx_defines.h')
| -rw-r--r-- | third_party/webrtc/src/webrtc/modules/audio_processing/ns/nsx_defines.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/third_party/webrtc/src/webrtc/modules/audio_processing/ns/nsx_defines.h b/third_party/webrtc/src/webrtc/modules/audio_processing/ns/nsx_defines.h new file mode 100644 index 00000000..862dc3ca --- /dev/null +++ b/third_party/webrtc/src/webrtc/modules/audio_processing/ns/nsx_defines.h @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2012 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 NUM_HIGH_BANDS_MAX 2 /* Max number of high bands */ +#define SIMULT 3 +#define END_STARTUP_LONG 200 +#define END_STARTUP_SHORT 50 +#define FACTOR_Q16 2621440 /* 40 in Q16 */ +#define FACTOR_Q7 5120 /* 40 in Q7 */ +#define FACTOR_Q7_STARTUP 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_ */ |