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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.
*/
/*
* This header file includes the macros used in VAD.
*/
#ifndef WEBRTC_VAD_DEFINES_H_
#define WEBRTC_VAD_DEFINES_H_
#define NUM_CHANNELS 6 // Eight frequency bands
#define NUM_MODELS 2 // Number of Gaussian models
#define NUM_TABLE_VALUES NUM_CHANNELS * NUM_MODELS
#define MIN_ENERGY 10
#define ALPHA1 6553 // 0.2 in Q15
#define ALPHA2 32439 // 0.99 in Q15
#define NSP_MAX 6 // Maximum number of VAD=1 frames in a row counted
#define MIN_STD 384 // Minimum standard deviation
// Mode 0, Quality thresholds - Different thresholds for the different frame lengths
#define INDIVIDUAL_10MS_Q 24
#define INDIVIDUAL_20MS_Q 21 // (log10(2)*66)<<2 ~=16
#define INDIVIDUAL_30MS_Q 24
#define TOTAL_10MS_Q 57
#define TOTAL_20MS_Q 48
#define TOTAL_30MS_Q 57
#define OHMAX1_10MS_Q 8 // Max Overhang 1
#define OHMAX2_10MS_Q 14 // Max Overhang 2
#define OHMAX1_20MS_Q 4 // Max Overhang 1
#define OHMAX2_20MS_Q 7 // Max Overhang 2
#define OHMAX1_30MS_Q 3
#define OHMAX2_30MS_Q 5
// Mode 1, Low bitrate thresholds - Different thresholds for the different frame lengths
#define INDIVIDUAL_10MS_LBR 37
#define INDIVIDUAL_20MS_LBR 32
#define INDIVIDUAL_30MS_LBR 37
#define TOTAL_10MS_LBR 100
#define TOTAL_20MS_LBR 80
#define TOTAL_30MS_LBR 100
#define OHMAX1_10MS_LBR 8 // Max Overhang 1
#define OHMAX2_10MS_LBR 14 // Max Overhang 2
#define OHMAX1_20MS_LBR 4
#define OHMAX2_20MS_LBR 7
#define OHMAX1_30MS_LBR 3
#define OHMAX2_30MS_LBR 5
// Mode 2, Very aggressive thresholds - Different thresholds for the different frame lengths
#define INDIVIDUAL_10MS_AGG 82
#define INDIVIDUAL_20MS_AGG 78
#define INDIVIDUAL_30MS_AGG 82
#define TOTAL_10MS_AGG 285 //580
#define TOTAL_20MS_AGG 260
#define TOTAL_30MS_AGG 285
#define OHMAX1_10MS_AGG 6 // Max Overhang 1
#define OHMAX2_10MS_AGG 9 // Max Overhang 2
#define OHMAX1_20MS_AGG 3
#define OHMAX2_20MS_AGG 5
#define OHMAX1_30MS_AGG 2
#define OHMAX2_30MS_AGG 3
// Mode 3, Super aggressive thresholds - Different thresholds for the different frame lengths
#define INDIVIDUAL_10MS_VAG 94
#define INDIVIDUAL_20MS_VAG 94
#define INDIVIDUAL_30MS_VAG 94
#define TOTAL_10MS_VAG 1100 //1700
#define TOTAL_20MS_VAG 1050
#define TOTAL_30MS_VAG 1100
#define OHMAX1_10MS_VAG 6 // Max Overhang 1
#define OHMAX2_10MS_VAG 9 // Max Overhang 2
#define OHMAX1_20MS_VAG 3
#define OHMAX2_20MS_VAG 5
#define OHMAX1_30MS_VAG 2
#define OHMAX2_30MS_VAG 3
#endif // WEBRTC_VAD_DEFINES_H_
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