ref: 5c448c618a89ab8933838da1b5b97ed7c4a42e08
dir: /sys/src/cmd/audio/libvorbis/modes/psych_8.h/
/******************************************************************** * * * 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 1994-2009 * * by the Xiph.Org Foundation https://xiph.org/ * * * ******************************************************************** function: 8kHz psychoacoustic settings ********************************************************************/ static const att3 _psy_tone_masteratt_8[3]={ {{ 32, 25, 12}, 0, 0}, /* 0 */ {{ 30, 25, 12}, 0, 0}, /* 0 */ {{ 20, 0, -14}, 0, 0}, /* 0 */ }; static const vp_adjblock _vp_tonemask_adj_8[3]={ /* adjust for mode zero */ /* 63 125 250 500 1 2 4 8 16 */ {{-15,-15,-15,-15,-10,-10, -6, 0, 0, 0, 0,10, 0, 0,99,99,99}}, /* 1 */ {{-15,-15,-15,-15,-10,-10, -6, 0, 0, 0, 0,10, 0, 0,99,99,99}}, /* 1 */ {{-15,-15,-15,-15,-10,-10, -6, 0, 0, 0, 0, 0, 0, 0,99,99,99}}, /* 1 */ }; static const noise3 _psy_noisebias_8[3]={ /* 63 125 250 500 1k 2k 4k 8k 16k*/ {{{-10,-10,-10,-10, -5, -5, -5, 0, 4, 8, 8, 8, 10, 10, 99, 99, 99}, {-10,-10,-10,-10, -5, -5, -5, 0, 0, 4, 4, 4, 4, 4, 99, 99, 99}, {-30,-30,-30,-30,-30,-24,-20,-14,-10, -6, -8, -8, -6, -6, 99, 99, 99}}}, {{{-10,-10,-10,-10, -5, -5, -5, 0, 4, 8, 8, 8, 10, 10, 99, 99, 99}, {-10,-10,-10,-10,-10,-10, -5, -5, -5, 0, 0, 0, 0, 0, 99, 99, 99}, {-30,-30,-30,-30,-30,-24,-20,-14,-10, -6, -8, -8, -6, -6, 99, 99, 99}}}, {{{-15,-15,-15,-15,-15,-12,-10, -8, 0, 2, 4, 4, 5, 5, 99, 99, 99}, {-30,-30,-30,-30,-26,-22,-20,-14,-12,-12,-10,-10,-10,-10, 99, 99, 99}, {-30,-30,-30,-30,-26,-26,-26,-26,-26,-26,-26,-26,-26,-24, 99, 99, 99}}}, }; /* stereo mode by base quality level */ static const adj_stereo _psy_stereo_modes_8[3]={ /* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 */ {{ 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3}, { 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4}, { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, { 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}}, {{ 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3}, { 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4}, { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, { 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}}, {{ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3}, { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4}, { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, { 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}}, }; static const noiseguard _psy_noiseguards_8[2]={ {10,10,-1}, {10,10,-1}, }; static const compandblock _psy_compand_8[2]={ {{ 0, 1, 2, 3, 4, 5, 6, 7, /* 7dB */ 8, 8, 9, 9,10,10,11, 11, /* 15dB */ 12,12,13,13,14,14,15, 15, /* 23dB */ 16,16,17,17,17,18,18, 19, /* 31dB */ 19,19,20,21,22,23,24, 25, /* 39dB */ }}, {{ 0, 1, 2, 3, 4, 5, 6, 6, /* 7dB */ 7, 7, 6, 6, 5, 5, 4, 4, /* 15dB */ 3, 3, 3, 4, 5, 6, 7, 8, /* 23dB */ 9,10,11,12,13,14,15, 16, /* 31dB */ 17,18,19,20,21,22,23, 24, /* 39dB */ }}, }; static const double _psy_lowpass_8[3]={3.,4.,4.}; static const int _noise_start_8[2]={ 64,64, }; static const int _noise_part_8[2]={ 8,8, }; static const int _psy_ath_floater_8[3]={ -100,-100,-105, }; static const int _psy_ath_abs_8[3]={ -130,-130,-140, };