/* * Copyright (c) 2013 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 defines the coefficients of the FIR based approximation of // the Meyer Wavelet #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_TRANSIENT_DAUBECHIES_8_WAVELET_COEFFS_H_ #define WEBRTC_MODULES_AUDIO_PROCESSING_TRANSIENT_DAUBECHIES_8_WAVELET_COEFFS_H_ // Decomposition coefficients Daubechies 8. namespace webrtc { const int kDaubechies8CoefficientsLength = 16; const float kDaubechies8HighPassCoefficients[kDaubechies8CoefficientsLength] = { -5.44158422430816093862e-02f, 3.12871590914465924627e-01f, -6.75630736298012846142e-01f, 5.85354683654869090148e-01f, 1.58291052560238926228e-02f, -2.84015542962428091389e-01f, -4.72484573997972536787e-04f, 1.28747426620186011803e-01f, 1.73693010020221083600e-02f, -4.40882539310647192377e-02f, -1.39810279170155156436e-02f, 8.74609404701565465445e-03f, 4.87035299301066034600e-03f, -3.91740372995977108837e-04f, -6.75449405998556772109e-04f, -1.17476784002281916305e-04f }; const float kDaubechies8LowPassCoefficients[kDaubechies8CoefficientsLength] = { -1.17476784002281916305e-04f, 6.75449405998556772109e-04f, -3.91740372995977108837e-04f, -4.87035299301066034600e-03f, 8.74609404701565465445e-03f, 1.39810279170155156436e-02f, -4.40882539310647192377e-02f, -1.73693010020221083600e-02f, 1.28747426620186011803e-01f, 4.72484573997972536787e-04f, -2.84015542962428091389e-01f, -1.58291052560238926228e-02f, 5.85354683654869090148e-01f, 6.75630736298012846142e-01f, 3.12871590914465924627e-01f, 5.44158422430816093862e-02f }; } // namespace webrtc #endif // WEBRTC_MODULES_AUDIO_PROCESSING_TRANSIENT_DAUBECHIES_8_WAVELET_COEFFS_H_