57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
/*
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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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/*
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* This header file includes the declarations of the internally used constants.
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*/
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#ifndef WEBRTC_VAD_CONST_H_
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#define WEBRTC_VAD_CONST_H_
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#include "typedefs.h"
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// Spectrum Weighting
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WEBRTC_EXTERN const WebRtc_Word16 kSpectrumWeight[];
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WEBRTC_EXTERN const WebRtc_Word16 kCompVar;
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// Logarithm constant
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WEBRTC_EXTERN const WebRtc_Word16 kLogConst;
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WEBRTC_EXTERN const WebRtc_Word16 kLog10Const;
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// Q15
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WEBRTC_EXTERN const WebRtc_Word16 kNoiseUpdateConst;
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WEBRTC_EXTERN const WebRtc_Word16 kSpeechUpdateConst;
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// Q8
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WEBRTC_EXTERN const WebRtc_Word16 kBackEta;
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// Coefficients used by WebRtcVad_HpOutput, Q14
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WEBRTC_EXTERN const WebRtc_Word16 kHpZeroCoefs[];
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WEBRTC_EXTERN const WebRtc_Word16 kHpPoleCoefs[];
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// Allpass filter coefficients, upper and lower, in Q15 resp. Q13
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WEBRTC_EXTERN const WebRtc_Word16 kAllPassCoefsQ15[];
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WEBRTC_EXTERN const WebRtc_Word16 kAllPassCoefsQ13[];
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// Minimum difference between the two models, Q5
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WEBRTC_EXTERN const WebRtc_Word16 kMinimumDifference[];
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// Maximum value when updating the speech model, Q7
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WEBRTC_EXTERN const WebRtc_Word16 kMaximumSpeech[];
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// Minimum value for mean value
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WEBRTC_EXTERN const WebRtc_Word16 kMinimumMean[];
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// Upper limit of mean value for noise model, Q7
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WEBRTC_EXTERN const WebRtc_Word16 kMaximumNoise[];
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// Adjustment for division with two in WebRtcVad_SplitFilter
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WEBRTC_EXTERN const WebRtc_Word16 kOffsetVector[];
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// Start values for the Gaussian models, Q7
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WEBRTC_EXTERN const WebRtc_Word16 kNoiseDataWeights[];
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WEBRTC_EXTERN const WebRtc_Word16 kSpeechDataWeights[];
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WEBRTC_EXTERN const WebRtc_Word16 kNoiseDataMeans[];
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WEBRTC_EXTERN const WebRtc_Word16 kSpeechDataMeans[];
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WEBRTC_EXTERN const WebRtc_Word16 kNoiseDataStds[];
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WEBRTC_EXTERN const WebRtc_Word16 kSpeechDataStds[];
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#endif // WEBRTC_VAD_CONST_H_
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