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/********************************************************************
* *
* 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 1994-2001 *
* by the XIPHOPHORUS Company http://www.xiph.org/ *
********************************************************************
function: masking curve data for psychoacoustics
last mod: $Id: masking.h,v 1.19 2001/12/12 09:45:25 xiphmont Exp $
********************************************************************/
#ifndef _V_MASKING_H_
#define _V_MASKING_H_
static float ATH_Bark_dB_lspconservative[]={
15, 15, 15, 15, 11, 10, 8, 7, 7, 7,
6, 2, 0, 0, -3, -5, -6, -6, -4.5f, 2.5f,
10, 15, 15, 15, 15, 15, 15};
/* The below masking curves are straight from the R. Ehmer
(J. Acoustical Society of America) papers ca 1958-59. I modified
them slightly as Ehmer does not correct for the Absolute Threshold
of Hearing, and the low dB portions of the curves are thus highly
suspect. */
/* Let's all do the Trek thing and just call them 'Ehmer curves' ;-)
Note these are octaves, not Bark scale. */
#define EHMER_OFFSET 16
#define EHMER_MAX 56
static float tone_125_40dB_SL[EHMER_MAX]={
20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 18, 16, 14, 12, 11, 9, 7, 5, 3, 2, 0, -2, -4, -6, -8,
-10, -12, -14, -16, -18, -20, -900, -900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_125_60dB_SL[EHMER_MAX]={
40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
40, 38, 36, 34, 32, 31, 29, 27, 25, 23, 22, 20, 18, 16, 14, 12,
10, 8, 6, 4, 2, 0, -3, -5, -8,-10,-14,-17,-20,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_125_80dB_SL[EHMER_MAX]={
60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60,
60, 58, 56, 54, 52, 51, 49, 47, 45, 43, 42, 40, 38, 36, 34, 32,
30, 28, 26, 24, 22, 20, 17, 15, 12, 10, 6, 3, 0, -4, -8,-12,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_125_100dB_SL[EHMER_MAX]={
78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78,
78, 77, 75, 74, 73, 72, 71, 70, 69, 68, 67, 65, 64, 63, 62, 60,
58, 57, 55, 54, 52, 50, 48, 46, 44, 42, 40, 38, 36, 34, 31, 29,
27, 24, 22, 20, 18, 15, 13, 11};
static float tone_250_40dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -19, -13, -7, -1, 4, 9, 15, 20,
22, 23, 22, 19, 18, 18, 16, 13, 9, 7, 3, 1, -1, -3, -6, -8,
-10, -13, -16, -19,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_250_60dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900, -10, -5, 1, 7, 13, 19, 25, 30, 33,
36, 39, 38, 37, 38, 39, 39, 40, 38, 36, 35, 34, 33, 31, 29, 28,
28, 28, 25, 20, 14, 10, 5, 0, -5,-10,-15,-20,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_250_80dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900, -10, 10, 17, 24, 30, 37, 41, 48, 49,
50, 53, 54, 53, 53, 54, 55, 57, 57, 57, 58, 59, 60, 58, 57, 58,
59, 58, 57, 54, 52, 50, 49, 47, 46, 47, 46, 44, 43, 42, 41, 40,
38, 32, 27, 22, 17, 11, 6, 0};
/* no data, just interpolated from 80 */
static float tone_250_100dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900, -10, 15, 25, 34, 40, 50, 56, 60, 70,
70, 73, 74, 73, 73, 74, 75, 77, 77, 77, 78, 79, 80, 78, 77, 78,
79, 78, 77, 74, 72, 70, 69, 67, 66, 67, 66, 64, 63, 62, 61, 60,
58, 52, 47, 42, 37, 31, 26, 20};
static float tone_500_40dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900, -20, -14, -8, -2, 4, 10, 17,
23, 16, 12, 9, 6, 3, 0, -3, -7, -10, -13, -16, -20,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_500_60dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -18, -12, -6, 0, 6, 13, 20, 30,
39, 34, 31, 29, 29, 27, 24, 21, 18, 16, 13, 8, 6, 3, 1, -1,
-5, -2, -5, -8, -12, -15, -18,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_500_80dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-16,-10, 0, 10, 20, 32, 43,
53, 52, 52, 50, 49, 50, 52, 55, 55, 54, 51, 49, 46, 44, 44, 42,
38, 34, 32, 29, 29, 28, 25, 23, 20, 16, 10, 7, 4, 2, -1, -4,
-7, -10, -15, -20,-900,-900,-900,-900};
static float tone_500_100dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900, -10, -7, 2, 10, 19, 27, 35, 55, 56,
62, 61, 60, 58, 57, 57, 59, 63, 65, 66, 62, 60, 57, 57, 58, 58,
57, 56, 56, 56, 57, 57, 56, 57, 57, 54, 47, 41, 37, 28, 21, 16,
10, 3, -3, -8, -13, -18,-900,-900};
static float tone_1000_40dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900, -20, -10, 0, 9, 20,
27, 20, 13, 14, 13, 5, -1, -6, -11, -20,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_1000_60dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-13,-3, 7, 17, 25, 37,
42, 33, 25, 25, 23, 18, 13, 9, 4, -1, -7,-13,-18, -23, -28, -33,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_1000_80dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-14, -4, 6, 16, 27, 33, 50,
59, 57, 47, 41, 40, 43, 47, 48, 47, 42, 39, 37, 37, 36, 35, 32,
30, 27, 21, 15, 5, -2, -10, -18, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_1000_100dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-10, 0, 10, 23, 33, 45, 60,
70, 72, 55, 49, 43, 40, 44, 54, 59, 58, 49, 43, 52, 57, 57, 58,
58, 54, 49, 47, 42, 39, 33, 28, 20, 15, 5, 0, -5,-15,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_2000_40dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900, 5, 12, 20,
24, 14, 8, 0, -5,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_2000_60dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900, -2, 8, 19, 31,
38, 30, 15, 15, 15, 13, 8, 5, -2,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_2000_80dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900, 2, 10, 22, 38,
52, 51, 40, 30, 28, 30, 33, 37, 37, 35, 31, 26, 20, 15, 10, 5,
0,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_2000_100dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900, 6, 20, 40, 55,
66, 60, 53, 40, 35, 31, 34, 42, 58, 48, 43, 45, 52, 57, 50, 42,
45, 45, 35, 25, 20, 11, 2,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_4000_40dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900, 2, 4, 18,
24, 10, 5, 0, -5,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_4000_60dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900, -2, 2, 4, 20,
38, 30, 22, 15, 10, 5, 0, -10, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_4000_80dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900, 0, 4, 10, 35,
51, 49, 35, 35, 36, 36, 36, 31, 25, 20, 10, 0,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_4000_100dB_SL[EHMER_MAX]={
-900, -5, 1, 3, 5, 8, 10, 12, 14, 20, 26, 28, 32, 36, 41, 51,
61, 59, 45, 45, 48, 48, 40, 25, 40, 30, 18, 5, 0, -900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_8000_40dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900, -10, 3, 10, 18,
26, 21, 14, 5, 0, 0, 5, 10, 20, 35, 55, 45, 70, 70, 70, 70,
70, 70, 70, 70, 70, 70, 70, 70, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_8000_60dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900, -10, 5, 12, 30,
43, 40, 36, 35, 36, 38, 41, 43, 45, 60, 70, 70, 70, 70, 70, 70,
70, 70, 70, 70, 70, 70, 70, 70, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_8000_80dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900,-900,-900, -10, -1, 2, 6, 10, 13, 19, 25, 35,
63, 59, 57, 56, 57, 59, 61, 62, 63, 65, 70, 70, 70, 70, 70, 70,
70, 70, 70, 70,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float tone_8000_100dB_SL[EHMER_MAX]={
-18, -12, -7, -3, 0, 2, 5, 8, 10, 14, 18, 20, 20, 22, 40, 40,
70, 50, 30, 30, 30, 30, 30, 30, 30, 40, 70, 70, 70, 70, 70, 70,
70, 70, 70, 70, 70, 70, 70, 70, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
#if 0 /* not used for the time being */
static float noise_500_60dB_SL[EHMER_MAX]={
-900,-900,-900,-900,-900, -20, -11, -2, 7, 16, 25, 34, 43, 52, 61, 66,
69, 68, 58, 50, 44, 38, 32, 28, 25, 24, 20, 18, 17, 12, 10, 8,
5, 0, -5, -8, -12, -15, -18, -22, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float noise_500_80dB_SL[EHMER_MAX]={
-900,-900,-900, -20, -10, -1, 8, 17, 26, 35, 44, 53, 62, 70, 79, 83,
85, 85, 81, 77, 74, 71, 68, 63, 61, 59, 56, 55, 54, 52, 48, 47,
45, 46, 45, 43, 40, 37, 33, 32, 35, 32, 30, 29, 20, 10, 0, -10,
-20, -30,-900,-900,-900,-900,-900,-900};
static float noise_1000_60dB_SL[EHMER_MAX]={
-900,-900,-900,-900, -24, -15, -6, 3, 12, 21, 28, 34, 40, 48, 57, 60,
61, 56, 54, 45, 36, 27, 21, 19, 17, 13, 10, 0, -10, -20, -20,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float noise_1000_80dB_SL[EHMER_MAX]={
-900, -26, -17, -8, 1, 10, 19, 28, 37, 41, 46, 51, 58, 68, 74, 81,
80, 81, 70, 66, 58, 61, 59, 55, 54, 53, 52, 49, 48, 42, 38, 38,
39, 34, 30, 27, 20, 10, 0, -10, -20, -30,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float noise_2000_60dB_SL[EHMER_MAX]={
-900,-900,-900, -34, -25, -16, -7, 2, 11, 18, 23, 30, 35, 42, 51, 58,
58, 57, 50, 40,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float noise_2000_80dB_SL[EHMER_MAX]={
-900, -26, -17, -8, 1, 10, 19, 28, 33, 38, 43, 48, 53, 62, 70, 77,
77, 75, 70, 67, 68, 66, 62, 61, 60, 59, 52, 47, 39, 35, 34, 35,
35, 33, 30, 27, 20, 10, 0, -10, -20, -30,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float noise_4000_60dB_SL[EHMER_MAX]={
-900,-900,-900, -34, -25, -16, -7, 2, 11, 20, 25, 31, 37, 45, 56, 62,
64, 61,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
static float noise_4000_80dB_SL[EHMER_MAX]={
-900, -26, -17, -8, 1, 10, 19, 26, 33, 39, 45, 50, 55, 65, 75, 82,
84, 81, 78, 72, 70, 69, 66, 61, 50, 48, 46, 40, 35, 30, 25, 20,
15, 10, 5, 0, -10, -20, -30,-900, -900,-900,-900,-900,-900,-900,-900,-900,
-900,-900,-900,-900,-900,-900,-900,-900};
#endif
#endif
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