58 lines
3.3 KiB
C
58 lines
3.3 KiB
C
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/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
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#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
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#define ANAL_BLOCKL_MAX 256 // max analysis block length: 256/512/1024: 1024 for 30ms
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#define HALF_ANAL_BLOCKL 129 // half max analysis block length + 1
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#define SIMULT 3
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#define CONVERGED 200
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#define FACTOR_Q16 (WebRtc_Word32)2621440 // 40 in Q16
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#define FACTOR_Q7 (WebRtc_Word16)5120 // 40 in Q7
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#define WIDTH_Q8 3 // 0.01 in Q8 (or 25 )
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//PARAMETERS FOR NEW METHOD
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#define DD_PR_SNR_Q11 2007 // ~= Q11(0.98) DD update of prior SNR
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#define ONE_MINUS_DD_PR_SNR_Q11 41 // DD update of prior SNR
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#define SPECT_FLAT_TAVG_Q14 4915 // (0.30) tavg parameter for spectral flatness measure
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#define SPECT_DIFF_TAVG_Q8 77 // (0.30) tavg parameter for spectral flatness measure
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#define PRIOR_UPDATE_Q14 1638 // Q14(0.1) update parameter of prior model
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#define NOISE_UPDATE_Q8 26 // 26 ~= Q8(0.1) update parameter for noise
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// prob. threshold for noise state in speech/noise likelihood
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#define ONE_MINUS_PROB_RANGE_Q8 205 // 205 ~= Q8(0.8)
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#define HIST_PAR_EST 1000 // histogram size for estimation of parameters
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//FEATURE EXTRACTION CONFIG
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//bin size of histogram
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#define BIN_SIZE_LRT 10
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//scale parameters: multiply dominant peaks of the histograms by scale factor to obtain
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// thresholds for prior model
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#define FACTOR_1_LRT_DIFF 6 //for lrt and spectral difference (5 times bigger)
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//for spectral_flatness: used when noise is flatter than speech (10 times bigger)
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#define FACTOR_2_FLAT_Q10 922
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//peak limit for spectral flatness (varies between 0 and 1)
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#define THRES_PEAK_FLAT 24 // * 2 * BIN_SIZE_FLAT_FX
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//limit on spacing of two highest peaks in histogram: spacing determined by bin size
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#define LIM_PEAK_SPACE_FLAT_DIFF 4 // * 2 * BIN_SIZE_DIFF_FX
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//limit on relevance of second peak:
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#define LIM_PEAK_WEIGHT_FLAT_DIFF 2
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#define THRES_FLUCT_LRT 10240 //=20 * inst->modelUpdate; fluctuation limit of lrt feat.
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//limit on the max and min values for the feature thresholds
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#define MAX_FLAT_Q10 38912 // * 2 * BIN_SIZE_FLAT_FX
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#define MIN_FLAT_Q10 4096 // * 2 * BIN_SIZE_FLAT_FX
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#define MAX_DIFF 100 // * 2 * BIN_SIZE_DIFF_FX
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#define MIN_DIFF 16 // * 2 * BIN_SIZE_DIFF_FX
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//criteria of weight of histogram peak to accept/reject feature
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#define THRES_WEIGHT_FLAT_DIFF 154//(int)(0.3*(inst->modelUpdate)) for flatness and difference
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//
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#define STAT_UPDATES 9 // Update every 512 = 1 << 9 block
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#define ONE_MINUS_GAMMA_PAUSE_Q8 13 // ~= Q8(0.05) update for conservative noise estimate
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#define GAMMA_NOISE_TRANS_AND_SPEECH_Q8 3 // ~= Q8(0.01) update for transition and noise region
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
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