ref: 15d1425b276495a82621a8d075176a59a512cdf3
dir: /sys/src/cmd/audio/libvorbis/modes/psych_16.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: 16kHz settings
********************************************************************/
/* stereo mode by base quality level */
static const adj_stereo _psy_stereo_modes_16[4]={
/* 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},
{ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 4, 4},
{ 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},
{ 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4},
{ 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},
{ 5, 4, 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},
{ 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}},
{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8},
{ 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}},
};
static const double _psy_lowpass_16[4]={6.5,8,30.,99.};
static const att3 _psy_tone_masteratt_16[4]={
{{ 30, 25, 12}, 0, 0}, /* 0 */
{{ 25, 22, 12}, 0, 0}, /* 0 */
{{ 20, 12, 0}, 0, 0}, /* 0 */
{{ 15, 0, -14}, 0, 0}, /* 0 */
};
static const vp_adjblock _vp_tonemask_adj_16[4]={
/* adjust for mode zero */
/* 63 125 250 500 1 2 4 8 16 */
{{-20,-20,-20,-20,-20,-16,-10, 0, 0, 0, 0,10, 0, 0, 0, 0, 0}}, /* 0 */
{{-20,-20,-20,-20,-20,-16,-10, 0, 0, 0, 0,10, 0, 0, 0, 0, 0}}, /* 1 */
{{-20,-20,-20,-20,-20,-16,-10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, /* 2 */
{{-30,-30,-30,-30,-30,-26,-20,-10, -5, 0, 0, 0, 0, 0, 0, 0, 0}}, /* 2 */
};
static const noise3 _psy_noisebias_16_short[4]={
/* 63 125 250 500 1k 2k 4k 8k 16k*/
{{{-15,-15,-15,-15,-15,-10,-10,-5, 4, 10, 10, 10, 10, 12, 12, 14, 20},
{-15,-15,-15,-15,-15,-10,-10, -5, 0, 0, 4, 5, 5, 6, 8, 8, 15},
{-30,-30,-30,-30,-30,-24,-20,-14,-10, -6, -8, -8, -6, -6, -6, -6, -6}}},
{{{-15,-15,-15,-15,-15,-10,-10,-5, 4, 6, 6, 6, 6, 8, 10, 12, 20},
{-15,-15,-15,-15,-15,-15,-15,-10, -5, -5, -5, 4, 5, 6, 8, 8, 15},
{-30,-30,-30,-30,-30,-24,-20,-14,-10,-10,-10,-10,-10,-10,-10,-10,-10}}},
{{{-15,-15,-15,-15,-15,-12,-10, -8, 0, 2, 4, 4, 5, 5, 5, 8, 12},
{-20,-20,-20,-20,-16,-12,-20,-14,-10,-10, -8, 0, 0, 0, 0, 2, 5},
{-30,-30,-30,-30,-26,-26,-26,-26,-26,-26,-26,-26,-26,-24,-20,-20,-20}}},
{{{-15,-15,-15,-15,-15,-12,-10, -8, -5, -5, -5, -5, -5, 0, 0, 0, 6},
{-30,-30,-30,-30,-26,-22,-20,-14,-12,-12,-10,-10,-10,-10,-10,-10, -6},
{-30,-30,-30,-30,-26,-26,-26,-26,-26,-26,-26,-26,-26,-24,-20,-20,-20}}},
};
static const noise3 _psy_noisebias_16_impulse[4]={
/* 63 125 250 500 1k 2k 4k 8k 16k*/
{{{-15,-15,-15,-15,-15,-10,-10,-5, 4, 10, 10, 10, 10, 12, 12, 14, 20},
{-15,-15,-15,-15,-15,-10,-10, -5, 0, 0, 4, 5, 5, 6, 8, 8, 15},
{-30,-30,-30,-30,-30,-24,-20,-14,-10, -6, -8, -8, -6, -6, -6, -6, -6}}},
{{{-15,-15,-15,-15,-15,-10,-10,-5, 4, 4, 4, 4, 5, 5, 6, 8, 15},
{-15,-15,-15,-15,-15,-15,-15,-10, -5, -5, -5, 0, 0, 0, 0, 4, 10},
{-30,-30,-30,-30,-30,-24,-20,-14,-10,-10,-10,-10,-10,-10,-10,-10,-10}}},
{{{-15,-15,-15,-15,-15,-12,-10, -8, 0, 0, 0, 0, 0, 0, 0, 4, 10},
{-20,-20,-20,-20,-16,-12,-20,-14,-10,-10,-10,-10,-10,-10,-10, -7, -5},
{-30,-30,-30,-30,-26,-26,-26,-26,-26,-26,-26,-26,-26,-24,-20,-20,-20}}},
{{{-15,-15,-15,-15,-15,-12,-10, -8, -5, -5, -5, -5, -5, 0, 0, 0, 6},
{-30,-30,-30,-30,-26,-22,-20,-18,-18,-18,-20,-20,-20,-20,-20,-20,-16},
{-30,-30,-30,-30,-26,-26,-26,-26,-26,-26,-26,-26,-26,-24,-20,-20,-20}}},
};
static const noise3 _psy_noisebias_16[4]={
/* 63 125 250 500 1k 2k 4k 8k 16k*/
{{{-10,-10,-10,-10, -5, -5, -5, 0, 4, 6, 8, 8, 10, 10, 10, 14, 20},
{-10,-10,-10,-10,-10, -5, -2, -2, 0, 0, 0, 4, 5, 6, 8, 8, 15},
{-30,-30,-30,-30,-30,-24,-20,-14,-10, -6, -8, -8, -6, -6, -6, -6, -6}}},
{{{-10,-10,-10,-10, -5, -5, -5, 0, 4, 6, 6, 6, 6, 8, 10, 12, 20},
{-15,-15,-15,-15,-15,-10, -5, -5, 0, 0, 0, 4, 5, 6, 8, 8, 15},
{-30,-30,-30,-30,-30,-24,-20,-14,-10, -6, -8, -8, -6, -6, -6, -6, -6}}},
{{{-15,-15,-15,-15,-15,-12,-10, -8, 0, 2, 4, 4, 5, 5, 5, 8, 12},
{-20,-20,-20,-20,-16,-12,-20,-10, -5, -5, 0, 0, 0, 0, 0, 2, 5},
{-30,-30,-30,-30,-26,-26,-26,-26,-26,-26,-26,-26,-26,-24,-20,-20,-20}}},
{{{-15,-15,-15,-15,-15,-12,-10, -8, -5, -5, -5, -5, -5, 0, 0, 0, 6},
{-30,-30,-30,-30,-26,-22,-20,-14,-12,-12,-10,-10,-10,-10,-10,-10, -6},
{-30,-30,-30,-30,-26,-26,-26,-26,-26,-26,-26,-26,-26,-24,-20,-20,-20}}},
};
static const noiseguard _psy_noiseguards_16[4]={
{10,10,-1},
{10,10,-1},
{20,20,-1},
{20,20,-1},
};
static const double _noise_thresh_16[4]={ .3,.5,.5,.5 };
static const int _noise_start_16[3]={ 256,256,9999 };
static const int _noise_part_16[4]={ 8,8,8,8 };
static const int _psy_ath_floater_16[4]={
-100,-100,-100,-105,
};
static const int _psy_ath_abs_16[4]={
-130,-130,-130,-140,
};