| /* |
| * 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. |
| */ |
| |
| /* filterbank_tables.c*/ |
| /* This file contains variables that are used in filterbanks.c*/ |
| |
| #include "filterbank_tables.h" |
| #include "settings.h" |
| |
| /* The composite all-pass filter factors */ |
| const float WebRtcIsac_kCompositeApFactorsFloat[4] = { |
| 0.03470000000000f, 0.15440000000000f, 0.38260000000000f, 0.74400000000000f}; |
| |
| /* The upper channel all-pass filter factors */ |
| const float WebRtcIsac_kUpperApFactorsFloat[2] = { |
| 0.03470000000000f, 0.38260000000000f}; |
| |
| /* The lower channel all-pass filter factors */ |
| const float WebRtcIsac_kLowerApFactorsFloat[2] = { |
| 0.15440000000000f, 0.74400000000000f}; |
| |
| /* The matrix for transforming the backward composite state to upper channel state */ |
| const float WebRtcIsac_kTransform1Float[8] = { |
| -0.00158678506084f, 0.00127157815343f, -0.00104805672709f, 0.00084837248079f, |
| 0.00134467983258f, -0.00107756549387f, 0.00088814793277f, -0.00071893072525f}; |
| |
| /* The matrix for transforming the backward composite state to lower channel state */ |
| const float WebRtcIsac_kTransform2Float[8] = { |
| -0.00170686041697f, 0.00136780109829f, -0.00112736532350f, 0.00091257055385f, |
| 0.00103094281812f, -0.00082615076557f, 0.00068092756088f, -0.00055119165484f}; |
