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1 /********************************************************************
2  *                                                                  *
3  * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
4  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
5  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
6  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
7  *                                                                  *
8  * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009             *
9  * by the Xiph.Org Foundation http://www.xiph.org/                  *
10  *                                                                  *
11  ********************************************************************
12 
13  function: 8kHz psychoacoustic settings
14  last mod: $Id: psych_8.h 16227 2009-07-08 06:58:46Z xiphmont $
15 
16  ********************************************************************/
17 
18 static const att3 _psy_tone_masteratt_8[3]={
19   {{ 32,  25,  12},  0,   0},  /* 0 */
20   {{ 30,  25,  12},  0,   0},  /* 0 */
21   {{ 20,   0, -14},  0,   0}, /* 0 */
22 };
23 
24 static const vp_adjblock _vp_tonemask_adj_8[3]={
25   /* adjust for mode zero */
26   /* 63     125     250     500     1     2     4     8    16 */
27   {{-15,-15,-15,-15,-10,-10, -6, 0, 0, 0, 0,10, 0, 0,99,99,99}}, /* 1 */
28   {{-15,-15,-15,-15,-10,-10, -6, 0, 0, 0, 0,10, 0, 0,99,99,99}}, /* 1 */
29   {{-15,-15,-15,-15,-10,-10, -6, 0, 0, 0, 0, 0, 0, 0,99,99,99}}, /* 1 */
30 };
31 
32 
33 static const noise3 _psy_noisebias_8[3]={
34   /*  63     125     250     500      1k       2k      4k      8k     16k*/
35   {{{-10,-10,-10,-10, -5, -5, -5,  0,  4,  8,  8,  8, 10, 10, 99, 99, 99},
36     {-10,-10,-10,-10, -5, -5, -5,  0,  0,  4,  4,  4,  4,  4, 99, 99, 99},
37     {-30,-30,-30,-30,-30,-24,-20,-14,-10, -6, -8, -8, -6, -6, 99, 99, 99}}},
38 
39   {{{-10,-10,-10,-10, -5, -5, -5,  0,  4,  8,  8,  8, 10, 10, 99, 99, 99},
40     {-10,-10,-10,-10,-10,-10, -5, -5, -5,  0,  0,  0,  0,  0, 99, 99, 99},
41     {-30,-30,-30,-30,-30,-24,-20,-14,-10, -6, -8, -8, -6, -6, 99, 99, 99}}},
42 
43   {{{-15,-15,-15,-15,-15,-12,-10, -8,  0,  2,  4,  4,  5,  5, 99, 99, 99},
44     {-30,-30,-30,-30,-26,-22,-20,-14,-12,-12,-10,-10,-10,-10, 99, 99, 99},
45     {-30,-30,-30,-30,-26,-26,-26,-26,-26,-26,-26,-26,-26,-24, 99, 99, 99}}},
46 };
47 
48 /* stereo mode by base quality level */
49 static const adj_stereo _psy_stereo_modes_8[3]={
50   /*  0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  */
51   {{  4,  4,  4,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3},
52    {  6,  5,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4},
53    {  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1},
54    { 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}},
55   {{  4,  4,  4,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3},
56    {  6,  5,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4},
57    {  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1},
58    { 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}},
59   {{  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3},
60    {  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4},
61    {  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1},
62    { 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}},
63 };
64 
65 static const noiseguard _psy_noiseguards_8[2]={
66   {10,10,-1},
67   {10,10,-1},
68 };
69 
70 static const compandblock _psy_compand_8[2]={
71   {{
72      0, 1, 2, 3, 4, 5, 6,  7,     /* 7dB */
73      8, 8, 9, 9,10,10,11, 11,     /* 15dB */
74     12,12,13,13,14,14,15, 15,     /* 23dB */
75     16,16,17,17,17,18,18, 19,     /* 31dB */
76     19,19,20,21,22,23,24, 25,     /* 39dB */
77   }},
78   {{
79      0, 1, 2, 3, 4, 5, 6,  6,     /* 7dB */
80      7, 7, 6, 6, 5, 5, 4,  4,     /* 15dB */
81      3, 3, 3, 4, 5, 6, 7,  8,     /* 23dB */
82      9,10,11,12,13,14,15, 16,     /* 31dB */
83     17,18,19,20,21,22,23, 24,     /* 39dB */
84   }},
85 };
86 
87 static const double _psy_lowpass_8[3]={3.,4.,4.};
88 static const int _noise_start_8[2]={
89   64,64,
90 };
91 static const int _noise_part_8[2]={
92   8,8,
93 };
94 
95 static const int _psy_ath_floater_8[3]={
96   -100,-100,-105,
97 };
98 
99 static const int _psy_ath_abs_8[3]={
100   -130,-130,-140,
101 };
102