| /* |
| * 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_DEFINES_H_ |
| #define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_DEFINES_H_ |
| |
| //#define PROCESS_FLOW_0 // Use the traditional method. |
| //#define PROCESS_FLOW_1 // Use traditional with DD estimate of prior SNR. |
| #define PROCESS_FLOW_2 // Use the new method of speech/noise classification. |
| |
| #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 QUANTILE (float)0.25 |
| |
| #define SIMULT 3 |
| #define END_STARTUP_LONG 200 |
| #define END_STARTUP_SHORT 50 |
| #define FACTOR (float)40.0 |
| #define WIDTH (float)0.01 |
| |
| #define SMOOTH (float)0.75 // filter smoothing |
| // 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 (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 |
| #endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_DEFINES_H_ |