reverb_tables.h

audio-video-codecs.rar语音编解码器

/*//////////////////////////////////////////////////////////////////////////////
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2005-2006 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __UMC_REVERB_TABLES_H__
#define __UMC_REVERB_TABLES_H__

//**************************************************
//    INTERNAL TABLES FOR REVERB FILTER
//**************************************************

Ipp32f firTaps[] = {1.0f, 0.841f, 0.504f, 0.491f, 0.379f, 0.380f, 0.346f,
                  0.289f, 0.272f, 0.192f, 0.193f, 0.217f, 0.181f,
                  0.180f, 0.181f, 0.176f, 0.142f, 0.167f, 0.134f};

/***** delays for FIR filter in msec *****/
Ipp32f firDelays[] = {0.0f, 4.3f, 21.5f, 22.5f, 26.8f, 27.0f, 29.8f,
                     45.8f, 48.5f, 57.2f, 58.7f, 59.5f, 61.2f,
                     70.7f, 70.8f, 72.6f, 74.1f, 75.3f, 79.7f};

Ipp32f combGains25[] = {0.24f, 0.26f, 0.28f, 0.29f, 0.30f, 0.32f}; /* 25 kHz */
Ipp32f combGains50[] = {0.46f, 0.48f, 0.50f, 0.52f, 0.53f, 0.55f}; /* 50 kHz */

Ipp32s combDelays[] = {50, 56, 61, 68, 72, 78};

#endif  /* __UMC_REVERB_TABLES_H__ */