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Play Audio Files with DirectSound and Display its Spectrum in Real Time - Part 3

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24 Dec 2008CPOL3 min read 274.3K   17.7K   86  
An article to show how to play audio file with DirectSound and display its spectrum in real time accurately
/********************************************************************
 *                                                                  *
 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
 *                                                                  *
 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007             *
 * by the Xiph.Org Foundation http://www.xiph.org/                  *
 *                                                                  *
 ********************************************************************

 function: 22kHz settings 
 last mod: $Id: setup_22.h 13293 2007-07-24 00:09:47Z xiphmont $

 ********************************************************************/

static double rate_mapping_22[4]={
  15000.,20000.,44000.,86000.
};

static double rate_mapping_22_uncoupled[4]={
  16000.,28000.,50000.,90000.
};

static double _psy_lowpass_22[4]={9.5,11.,30.,99.};

ve_setup_data_template ve_setup_22_stereo={
  3,
  rate_mapping_22,
  quality_mapping_16,
  2,
  19000,
  26000,
  
  blocksize_16_short,
  blocksize_16_long,

  _psy_tone_masteratt_16,
  _psy_tone_0dB,
  _psy_tone_suppress,

  _vp_tonemask_adj_16,
  _vp_tonemask_adj_16,
  _vp_tonemask_adj_16,

  _psy_noiseguards_16,
  _psy_noisebias_16_impulse,
  _psy_noisebias_16_short,
  _psy_noisebias_16_short,
  _psy_noisebias_16,
  _psy_noise_suppress,
  
  _psy_compand_8,
  _psy_compand_8_mapping,
  _psy_compand_8_mapping,

  {_noise_start_16,_noise_start_16},
  { _noise_part_16, _noise_part_16},
  _noise_thresh_16,

  _psy_ath_floater_16,
  _psy_ath_abs_16,
  
  _psy_lowpass_22,

  _psy_global_44,
  _global_mapping_16,
  _psy_stereo_modes_16,

  _floor_books,
  _floor,
  _floor_mapping_16_short,
  _floor_mapping_16,

  _mapres_template_16_stereo
};

ve_setup_data_template ve_setup_22_uncoupled={
  3,
  rate_mapping_22_uncoupled,
  quality_mapping_16,
  -1,
  19000,
  26000,
  
  blocksize_16_short,
  blocksize_16_long,

  _psy_tone_masteratt_16,
  _psy_tone_0dB,
  _psy_tone_suppress,

  _vp_tonemask_adj_16,
  _vp_tonemask_adj_16,
  _vp_tonemask_adj_16,

  _psy_noiseguards_8,
  _psy_noisebias_16_impulse,
  _psy_noisebias_16_short,
  _psy_noisebias_16_short,
  _psy_noisebias_16,
  _psy_noise_suppress,
  
  _psy_compand_8,
  _psy_compand_8_mapping,
  _psy_compand_8_mapping,

  {_noise_start_16,_noise_start_16},
  { _noise_part_16, _noise_part_16},
  _noise_thresh_16,

  _psy_ath_floater_16,
  _psy_ath_abs_16,
  
  _psy_lowpass_22,

  _psy_global_44,
  _global_mapping_16,
  _psy_stereo_modes_16,

  _floor_books,
  _floor,
  _floor_mapping_16_short,
  _floor_mapping_16,

  _mapres_template_16_uncoupled
};

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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