/******************************************************************** * * * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. * * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY * * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. * * PLEASE READ THESE TERMS DISTRIBUTING. * * * * THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-2000 * * by Monty and The XIPHOPHORUS Company * * http://www.xiph.org/ * * * ******************************************************************** function: masking curve data for psychoacoustics last mod: $Id: masking.h,v 1.3.4.4 2000/08/07 20:44:18 xiphmont Exp $ ********************************************************************/ #ifndef _V_MASKING_H_ #define _V_MASKING_H_ /* Not really an ATH, more a bottom curve to limit LSP dynamic range */ double ATH_Bark_dB[]={ 15, 15, 15, 15, 11, 10, 8, 7, 7, 7, 6, 2, 0, 0, -3, -5, -6, -6, -4.5, 2.5, 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 double tone_125_40dB_SL[EHMER_MAX]={ 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 29, 27, 26, 25, 23, 21, 20, 18, 16, 14, 12, 11, 9, 7, 5, 3, 2, 0, -2, -4, -6, -8, -10, -12, -14, -16, -18, -20, -23, -25, -28,-30,-34,-37,-40,-44,-48,-52, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_125_60dB_SL[EHMER_MAX]={ 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 49, 47, 46, 45, 43, 41, 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,-24,-28,-32, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_125_80dB_SL[EHMER_MAX]={ 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 69, 67, 66, 65, 63, 61, 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}; double tone_125_100dB_SL[EHMER_MAX]={ 85, 85, 85, 85, 85, 85, 85, 85, 85, 84, 84, 83, 82, 81, 80, 79, 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}; double 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, -21, -24, -28, -32, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double 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,-25,-30,-35,-40, -900,-900,-900,-900,-900,-900,-900,-900}; double 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 */ double 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}; double tone_500_40dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900, -40, -26, -20, -14, -8, -2, 4, 10, 17, 23, 16, 12, 9, 6, 3, 0, -3, -7, -10, -13, -16, -20, -23, -26, -30, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double 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, -22, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_500_80dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -22,-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, -25, -30, -35, -40}; double 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, -23, -28}; double tone_1000_40dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -55, -40, -30, -20, -10, 0, 9, 20, 27, 20, 13, 14, 13, 5, -1, -6, -11, -20, -30,-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}; double tone_1000_60dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900, -43, -33,-23,-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}; double tone_1000_80dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900, -35, -25,-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}; double tone_1000_100dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900, -40, -30, -20,-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,-20,-25, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_2000_40dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, -3, 5, 12, 20, 24, 21, 14, 5, -5, -15, -25, -35, -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}; double tone_2000_60dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, -2, 8, 19, 31, 38, 34, 24, 17, 14, 13, 11, 7, 3, -2, -6, -10, -14, -20, -26, -32, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_2000_80dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, -2, 13, 28, 40, 51, 51, 43, 35, 28, 29, 35, 37, 37, 35, 31, 28, 25, 22, 19, 15, 11, 8, 6, 2, -6, -14, -22, -30, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_2000_100dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -10, 6, 25, 42, 60, 66, 60, 53, 43, 35, 31, 34, 47, 58, 51, 43, 45, 54, 59, 59, 56, 54, 51, 40, 29, 20, 11, 2, -8, -17, -26, -35,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_4000_40dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, 0, 3, 10, 18, 24, 21, 14, 5, -5, -15, -25, -35, -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}; double tone_4000_60dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -40, -30, -21, -12, -2, 8, 19, 31, 38, 33, 28, 23, 19, 14, 11, 8, 3, -2, -7, -12, -17, -22, -27, -37, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_4000_80dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900,-900, -60, -50, -40, -29, -12, 5, 19, 37, 51, 49, 40, 35, 36, 36, 36, 33, 32, 24, 18, 8, -3, -12, -20, -29, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_4000_100dB_SL[EHMER_MAX]={ -20, -12, -8, -4, 0, 4, 8, 11, 15, 22, 26, 28, 32, 36, 43, 52, 62, 59, 50, 48, 50, 50, 45, 36, 45, 30, 20, 10, 0, -10, -19, -28, -37,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_8000_40dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900, -50, -41, -30, -21, -12, 0, 3, 10, 18, 23, 20, 16, 15, 16, 18, 21, 23, 25, 27, 29, 32, 35, 38, 41, 44, 47, 50, 55, 60, 85,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_8000_60dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900, -10, -21, -18, -14, -10, 0, 3, 15, 30, 43, 40, 36, 35, 36, 38, 41, 43, 45, 47, 49, 52, 55, 58, 61, 64, 67, 70, 75, 80,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_8000_80dB_SL[EHMER_MAX]={ -900,-900,-900,-900,-900,-900,-900, -10, -1, 2, 6, 10, 13, 19, 25, 35, 63, 60, 56, 55, 56, 58, 61, 63, 65, 70, 75, 80, 85, 90, 95, 100, 100, 100, 100, 100,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900, -900,-900,-900,-900,-900,-900,-900,-900}; double tone_8000_100dB_SL[EHMER_MAX]={ -18, -12, -7, -3, 0, 2, 6, 9, 12, 19, 22, 21, 19, 21, 40, 40, 80, 60, 35, 25, 15, 5, -5, -15, -25, -35,-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}; #if 0 /* not used for the time being */ double 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}; double 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}; double 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}; double 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}; double 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}; double 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}; double 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}; double 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