1 /********************************************************************
3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
5 * THE GNU LESSER/LIBRARY PUBLIC LICENSE, WHICH IS INCLUDED WITH *
6 * THIS SOURCE. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2000 *
9 * by Monty <monty@xiph.org> and the XIPHOPHORUS Company *
10 * http://www.xiph.org/ *
12 ********************************************************************
14 function: masking curve data for psychoacoustics
15 last mod: $Id: masking.h,v 1.6 2000/11/06 00:07:01 xiphmont Exp $
17 ********************************************************************/
22 /* Not really an ATH, more a bottom curve to limit LSP dynamic range */
24 15, 15, 15, 15, 11, 10, 8, 7, 7, 7,
25 6, 2, 0, 0, -3, -5, -6, -6, -4.5, 2.5,
26 10, 15, 15, 15, 15, 15, 15};
28 /* The below masking curves are straight from the R. Ehmer
29 (J. Acoustical Society of America) papers ca 1958-59. I modified
30 them slightly as Ehmer does not correct for the Absolute Threshold
31 of Hearing, and the low dB portions of the curves are thus highly
34 /* Let's all do the Trek thing and just call them 'Ehmer curves' ;-)
35 Note these are octaves, not Bark scale. */
37 #define EHMER_OFFSET 16
40 float tone_125_40dB_SL[EHMER_MAX]={
41 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 29, 27, 26, 25, 23, 21,
42 20, 18, 16, 14, 12, 11, 9, 7, 5, 3, 2, 0, -2, -4, -6, -8,
43 -10, -12, -14, -16, -18, -20, -23, -25, -28,-30,-34,-37,-40,-44,-48,-52,
44 -900,-900,-900,-900,-900,-900,-900,-900};
45 float tone_125_60dB_SL[EHMER_MAX]={
46 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 49, 47, 46, 45, 43, 41,
47 40, 38, 36, 34, 32, 31, 29, 27, 25, 23, 22, 20, 18, 16, 14, 12,
48 10, 8, 6, 4, 2, 0, -3, -5, -8,-10,-14,-17,-20,-24,-28,-32,
49 -900,-900,-900,-900,-900,-900,-900,-900};
50 float tone_125_80dB_SL[EHMER_MAX]={
51 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 69, 67, 66, 65, 63, 61,
52 60, 58, 56, 54, 52, 51, 49, 47, 45, 43, 42, 40, 38, 36, 34, 32,
53 30, 28, 26, 24, 22, 20, 17, 15, 12, 10, 6, 3, 0, -4, -8,-12,
54 -900,-900,-900,-900,-900,-900,-900,-900};
55 float tone_125_100dB_SL[EHMER_MAX]={
56 85, 85, 85, 85, 85, 85, 85, 85, 85, 84, 84, 83, 82, 81, 80, 79,
57 78, 77, 75, 74, 73, 72, 71, 70, 69, 68, 67, 65, 64, 63, 62, 60,
58 58, 57, 55, 54, 52, 50, 48, 46, 44, 42, 40, 38, 36, 34, 31, 29,
59 27, 24, 22, 20, 18, 15, 13, 11};
61 float tone_250_40dB_SL[EHMER_MAX]={
62 -900,-900,-900,-900,-900,-900,-900,-900, -19, -13, -7, -1, 4, 9, 15, 20,
63 22, 23, 22, 19, 18, 18, 16, 13, 9, 7, 3, 1, -1, -3, -6, -8,
64 -10, -13, -16, -19, -21, -24, -28, -32, -900,-900,-900,-900,-900,-900,-900,-900,
65 -900,-900,-900,-900,-900,-900,-900,-900};
66 float tone_250_60dB_SL[EHMER_MAX]={
67 -900,-900,-900,-900,-900,-900,-900, -10, -5, 1, 7, 13, 19, 25, 30, 33,
68 36, 39, 38, 37, 38, 39, 39, 40, 38, 36, 35, 34, 33, 31, 29, 28,
69 28, 28, 25, 20, 14, 10, 5, 0, -5,-10,-15,-20,-25,-30,-35,-40,
70 -900,-900,-900,-900,-900,-900,-900,-900};
71 float tone_250_80dB_SL[EHMER_MAX]={
72 -900,-900,-900,-900,-900,-900,-900, -10, 10, 17, 24, 30, 37, 41, 48, 49,
73 50, 53, 54, 53, 53, 54, 55, 57, 57, 57, 58, 59, 60, 58, 57, 58,
74 59, 58, 57, 54, 52, 50, 49, 47, 46, 47, 46, 44, 43, 42, 41, 40,
75 38, 32, 27, 22, 17, 11, 6, 0};
76 /* no data, just interpolated from 80 */
77 float tone_250_100dB_SL[EHMER_MAX]={
78 -900,-900,-900,-900,-900,-900,-900, -10, 15, 25, 34, 40, 50, 56, 60, 70,
79 70, 73, 74, 73, 73, 74, 75, 77, 77, 77, 78, 79, 80, 78, 77, 78,
80 79, 78, 77, 74, 72, 70, 69, 67, 66, 67, 66, 64, 63, 62, 61, 60,
81 58, 52, 47, 42, 37, 31, 26, 20};
83 float tone_500_40dB_SL[EHMER_MAX]={
84 -900,-900,-900,-900,-900,-900,-900, -40, -26, -20, -14, -8, -2, 4, 10, 17,
85 23, 16, 12, 9, 6, 3, 0, -3, -7, -10, -13, -16, -20, -23, -26, -30,
86 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
87 -900,-900,-900,-900,-900,-900,-900,-900};
88 float tone_500_60dB_SL[EHMER_MAX]={
89 -900,-900,-900,-900,-900,-900,-900,-900, -18, -12, -6, 0, 6, 13, 20, 30,
90 39, 34, 31, 29, 29, 27, 24, 21, 18, 16, 13, 8, 6, 3, 1, -1,
91 -5, -2, -5, -8, -12, -15, -18, -22, -900,-900,-900,-900,-900,-900,-900,-900,
92 -900,-900,-900,-900,-900,-900,-900,-900};
93 float tone_500_80dB_SL[EHMER_MAX]={
94 -900,-900,-900,-900,-900,-900,-900,-900, -22,-16,-10, 0, 10, 20, 32, 43,
95 53, 52, 52, 50, 49, 50, 52, 55, 55, 54, 51, 49, 46, 44, 44, 42,
96 38, 34, 32, 29, 29, 28, 25, 23, 20, 16, 10, 7, 4, 2, -1, -4,
97 -7, -10, -15, -20, -25, -30, -35, -40};
98 float tone_500_100dB_SL[EHMER_MAX]={
99 -900,-900,-900,-900,-900,-900,-900, -10, -7, 2, 10, 19, 27, 35, 55, 56,
100 62, 61, 60, 58, 57, 57, 59, 63, 65, 66, 62, 60, 57, 57, 58, 58,
101 57, 56, 56, 56, 57, 57, 56, 57, 57, 54, 47, 41, 37, 28, 21, 16,
102 10, 3, -3, -8, -13, -18, -23, -28};
104 float tone_1000_40dB_SL[EHMER_MAX]={
105 -900,-900,-900,-900,-900,-900,-900,-900, -55, -40, -30, -20, -10, 0, 9, 20,
106 27, 20, 13, 14, 13, 5, -1, -6, -11, -20, -30,-900,-900,-900,-900,-900,
107 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
108 -900,-900,-900,-900,-900,-900,-900,-900};
109 float tone_1000_60dB_SL[EHMER_MAX]={
110 -900,-900,-900,-900,-900,-900,-900, -43, -33,-23,-13, -3, 7, 17, 25, 37,
111 42, 33, 25, 25, 23, 18, 13, 9, 4, -1, -7,-13,-18, -23, -28, -33,
112 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
113 -900,-900,-900,-900,-900,-900,-900,-900};
114 float tone_1000_80dB_SL[EHMER_MAX]={
115 -900,-900,-900,-900,-900,-900,-900, -35, -25,-14, -4, 6, 16, 27, 33, 50,
116 59, 57, 47, 41, 40, 43, 47, 48, 47, 42, 39, 37, 37, 36, 35, 32,
117 30, 27, 21, 15, 5, -2, -10, -18, -900,-900,-900,-900,-900,-900,-900,-900,
118 -900,-900,-900,-900,-900,-900,-900,-900};
119 float tone_1000_100dB_SL[EHMER_MAX]={
120 -900,-900,-900,-900,-900,-900, -40, -30, -20,-10, 0, 10, 23, 33, 45, 60,
121 70, 72, 55, 49, 43, 40, 44, 54, 59, 58, 49, 43, 52, 57, 57, 58,
122 58, 54, 49, 47, 42, 39, 33, 28, 20, 15, 5, 0, -5,-15,-20,-25,
123 -900,-900,-900,-900,-900,-900,-900,-900};
125 float tone_2000_40dB_SL[EHMER_MAX]={
126 -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, -3, 5, 12, 20,
127 24, 21, 14, 5, -5, -15, -25, -35, -900,-900,-900,-900,-900,-900,-900,-900,
128 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
129 -900,-900,-900,-900,-900,-900,-900,-900};
130 float tone_2000_60dB_SL[EHMER_MAX]={
131 -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, -2, 8, 19, 31,
132 38, 34, 24, 17, 14, 13, 11, 7, 3, -2, -6, -10, -14, -20, -26, -32,
133 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
134 -900,-900,-900,-900,-900,-900,-900,-900};
135 float tone_2000_80dB_SL[EHMER_MAX]={
136 -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, -2, 13, 28, 40,
137 51, 51, 43, 35, 28, 29, 35, 37, 37, 35, 31, 28, 25, 22, 19, 15,
138 11, 8, 6, 2, -6, -14, -22, -30, -900,-900,-900,-900,-900,-900,-900,-900,
139 -900,-900,-900,-900,-900,-900,-900,-900};
140 float tone_2000_100dB_SL[EHMER_MAX]={
141 -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -10, 6, 25, 42, 60,
142 66, 60, 53, 43, 35, 31, 34, 47, 58, 51, 43, 45, 54, 59, 59, 56,
143 54, 51, 40, 29, 20, 11, 2, -8, -17, -26, -35,-900,-900,-900,-900,-900,
144 -900,-900,-900,-900,-900,-900,-900,-900};
146 float tone_4000_40dB_SL[EHMER_MAX]={
147 -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, 0, 3, 10, 18,
148 24, 21, 14, 5, -5, -15, -25, -35, -900,-900,-900,-900,-900,-900,-900,-900,
149 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
150 -900,-900,-900,-900,-900,-900,-900,-900};
152 float tone_4000_60dB_SL[EHMER_MAX]={
153 -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, -2, 8, 19, 31,
154 38, 33, 28, 23, 19, 14, 11, 8, 3, -2, -7, -12, -17, -22, -27, -37,
155 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
156 -900,-900,-900,-900,-900,-900,-900,-900};
158 float tone_4000_80dB_SL[EHMER_MAX]={
159 -900,-900,-900,-900,-900,-900,-900,-900, -60, -50, -40, -29, -12, 5, 19, 37,
160 51, 49, 40, 35, 36, 36, 36, 33, 32, 24, 18, 8, -3, -12, -20, -29,
161 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
162 -900,-900,-900,-900,-900,-900,-900,-900};
164 float tone_4000_100dB_SL[EHMER_MAX]={
165 -20, -12, -8, -4, 0, 4, 8, 11, 15, 22, 26, 28, 32, 36, 43, 52,
166 62, 59, 50, 48, 50, 50, 45, 36, 45, 30, 20, 10, 0, -10, -19, -28,
167 -37,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
168 -900,-900,-900,-900,-900,-900,-900,-900};
170 float tone_8000_40dB_SL[EHMER_MAX]={
171 -900,-900,-900,-900,-900,-900,-900, -50, -41, -30, -21, -12, 0, 3, 10, 18,
172 23, 20, 16, 15, 16, 18, 21, 23, 25, 27, 29, 32, 35, 38, 41, 44,
173 47, 50, 55, 60, 85,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
174 -900,-900,-900,-900,-900,-900,-900,-900};
175 float tone_8000_60dB_SL[EHMER_MAX]={
176 -900,-900,-900,-900,-900,-900,-900, -10, -21, -18, -14, -10, 0, 3, 15, 30,
177 43, 40, 36, 35, 36, 38, 41, 43, 45, 47, 49, 52, 55, 58, 61, 64,
178 67, 70, 75, 80,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
179 -900,-900,-900,-900,-900,-900,-900,-900};
180 float tone_8000_80dB_SL[EHMER_MAX]={
181 -900,-900,-900,-900,-900,-900,-900, -10, -1, 2, 6, 10, 13, 19, 25, 35,
182 63, 60, 56, 55, 56, 58, 61, 63, 65, 70, 75, 80, 85, 90, 95, 100,
183 100, 100, 100, 100,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
184 -900,-900,-900,-900,-900,-900,-900,-900};
186 float tone_8000_100dB_SL[EHMER_MAX]={
187 -18, -12, -7, -3, 0, 2, 6, 9, 12, 19, 22, 21, 19, 21, 40, 40,
188 80, 60, 35, 25, 15, 5, -5, -15, -25, -35,-900,-900,-900,-900,-900,-900,
189 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
190 -900,-900,-900,-900,-900,-900,-900,-900};
192 #if 0 /* not used for the time being */
193 float noise_500_60dB_SL[EHMER_MAX]={
194 -900,-900,-900,-900,-900, -20, -11, -2, 7, 16, 25, 34, 43, 52, 61, 66,
195 69, 68, 58, 50, 44, 38, 32, 28, 25, 24, 20, 18, 17, 12, 10, 8,
196 5, 0, -5, -8, -12, -15, -18, -22, -900,-900,-900,-900,-900,-900,-900,-900,
197 -900,-900,-900,-900,-900,-900,-900,-900};
199 float noise_500_80dB_SL[EHMER_MAX]={
200 -900,-900,-900, -20, -10, -1, 8, 17, 26, 35, 44, 53, 62, 70, 79, 83,
201 85, 85, 81, 77, 74, 71, 68, 63, 61, 59, 56, 55, 54, 52, 48, 47,
202 45, 46, 45, 43, 40, 37, 33, 32, 35, 32, 30, 29, 20, 10, 0, -10,
203 -20, -30,-900,-900,-900,-900,-900,-900};
205 float noise_1000_60dB_SL[EHMER_MAX]={
206 -900,-900,-900,-900, -24, -15, -6, 3, 12, 21, 28, 34, 40, 48, 57, 60,
207 61, 56, 54, 45, 36, 27, 21, 19, 17, 13, 10, 0, -10, -20, -20,-900,
208 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
209 -900,-900,-900,-900,-900,-900,-900,-900};
211 float noise_1000_80dB_SL[EHMER_MAX]={
212 -900, -26, -17, -8, 1, 10, 19, 28, 37, 41, 46, 51, 58, 68, 74, 81,
213 80, 81, 70, 66, 58, 61, 59, 55, 54, 53, 52, 49, 48, 42, 38, 38,
214 39, 34, 30, 27, 20, 10, 0, -10, -20, -30,-900,-900,-900,-900,-900,-900,
215 -900,-900,-900,-900,-900,-900,-900,-900};
217 float noise_2000_60dB_SL[EHMER_MAX]={
218 -900,-900,-900, -34, -25, -16, -7, 2, 11, 18, 23, 30, 35, 42, 51, 58,
219 58, 57, 50, 40,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
220 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
221 -900,-900,-900,-900,-900,-900,-900,-900};
223 float noise_2000_80dB_SL[EHMER_MAX]={
224 -900, -26, -17, -8, 1, 10, 19, 28, 33, 38, 43, 48, 53, 62, 70, 77,
225 77, 75, 70, 67, 68, 66, 62, 61, 60, 59, 52, 47, 39, 35, 34, 35,
226 35, 33, 30, 27, 20, 10, 0, -10, -20, -30,-900,-900,-900,-900,-900,-900,
227 -900,-900,-900,-900,-900,-900,-900,-900};
229 float noise_4000_60dB_SL[EHMER_MAX]={
230 -900,-900,-900, -34, -25, -16, -7, 2, 11, 20, 25, 31, 37, 45, 56, 62,
231 64, 61,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
232 -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900,
233 -900,-900,-900,-900,-900,-900,-900,-900};
235 float noise_4000_80dB_SL[EHMER_MAX]={
236 -900, -26, -17, -8, 1, 10, 19, 26, 33, 39, 45, 50, 55, 65, 75, 82,
237 84, 81, 78, 72, 70, 69, 66, 61, 50, 48, 46, 40, 35, 30, 25, 20,
238 15, 10, 5, 0, -10, -20, -30,-900, -900,-900,-900,-900,-900,-900,-900,-900,
239 -900,-900,-900,-900,-900,-900,-900,-900};