blob: 8271332ce233eb1a72d70736d2097a12492aa838 [file] [log] [blame]
* 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.
#define BLOCKL_MAX 160 // max processing block length: 160
#define ANAL_BLOCKL_MAX 256 // max analysis block length: 256
#define HALF_ANAL_BLOCKL 129 // half max analysis block length + 1
#define NUM_HIGH_BANDS_MAX 2 // max number of high bands: 2
#define QUANTILE (float)0.25
#define SIMULT 3
#define END_STARTUP_LONG 200
#define FACTOR (float)40.0
#define WIDTH (float)0.01
// Length of fft work arrays.
#define IP_LENGTH (ANAL_BLOCKL_MAX >> 1) // must be at least ceil(2 + sqrt(ANAL_BLOCKL_MAX/2))
#define DD_PR_SNR (float)0.98 // DD update of prior SNR
#define LRT_TAVG (float)0.50 // tavg parameter for LRT (previously 0.90)
#define SPECT_FL_TAVG (float)0.30 // tavg parameter for spectral flatness measure
#define SPECT_DIFF_TAVG (float)0.30 // tavg parameter for spectral difference measure
#define PRIOR_UPDATE (float)0.10 // update parameter of prior model
#define NOISE_UPDATE (float)0.90 // update parameter for noise
#define SPEECH_UPDATE (float)0.99 // update parameter when likely speech
#define WIDTH_PR_MAP (float)4.0 // width parameter in sigmoid map for prior model
#define LRT_FEATURE_THR (float)0.5 // default threshold for LRT feature
#define SF_FEATURE_THR (float)0.5 // default threshold for Spectral Flatness feature
#define SD_FEATURE_THR (float)0.5 // default threshold for Spectral Difference feature
#define PROB_RANGE (float)0.20 // probability threshold for noise state in
// speech/noise likelihood
#define HIST_PAR_EST 1000 // histogram size for estimation of parameters
#define GAMMA_PAUSE (float)0.05 // update for conservative noise estimate
#define B_LIM (float)0.5 // threshold in final energy gain factor calculation