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/*
* 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 MODULES_AUDIO_PROCESSING_LEGACY_NS_DEFINES_H_
#define MODULES_AUDIO_PROCESSING_LEGACY_NS_DEFINES_H_
#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 0.25f
#define SIMULT 3
#define END_STARTUP_LONG 200
#define END_STARTUP_SHORT 50
#define FACTOR 40.f
#define WIDTH 0.01f
// Length of fft work arrays.
#define IP_LENGTH \
(ANAL_BLOCKL_MAX >> 1) // must be at least ceil(2 + sqrt(ANAL_BLOCKL_MAX/2))
#define W_LENGTH (ANAL_BLOCKL_MAX >> 1)
// PARAMETERS FOR NEW METHOD
#define DD_PR_SNR 0.98f // DD update of prior SNR
#define LRT_TAVG 0.5f // tavg parameter for LRT (previously 0.90)
#define SPECT_FL_TAVG 0.30f // tavg parameter for spectral flatness measure
#define SPECT_DIFF_TAVG 0.30f // tavg parameter for spectral difference measure
#define PRIOR_UPDATE 0.1f // update parameter of prior model
#define NOISE_UPDATE 0.9f // update parameter for noise
#define SPEECH_UPDATE 0.99f // update parameter when likely speech
#define WIDTH_PR_MAP 4.0f // width parameter in sigmoid map for prior model
#define LRT_FEATURE_THR 0.5f // default threshold for LRT feature
#define SF_FEATURE_THR 0.5f // default threshold for Spectral Flatness feature
#define SD_FEATURE_THR \
0.5f // default threshold for Spectral Difference feature
#define PROB_RANGE \
0.2f // probability threshold for noise state in
// speech/noise likelihood
#define HIST_PAR_EST 1000 // histogram size for estimation of parameters
#define GAMMA_PAUSE 0.05f // update for conservative noise estimate
//
#define B_LIM 0.5f // threshold in final energy gain factor calculation
#endif // MODULES_AUDIO_PROCESSING_LEGACY_NS_DEFINES_H_