| 1 | /******************************************************************** |
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| 2 | * * |
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| 3 | * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * |
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| 4 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
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| 5 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
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| 6 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
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| 7 | * * |
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| 8 | * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * |
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| 9 | * by the Xiph.Org Foundation http://www.xiph.org/ * |
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| 10 | * * |
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| 11 | ******************************************************************** |
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| 12 | |
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| 13 | function: bark scale utility |
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| 14 | last mod: $Id: barkmel.c 13293 2007-07-24 00:09:47Z xiphmont $ |
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| 15 | |
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| 16 | ********************************************************************/ |
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| 17 | |
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| 18 | #include <stdio.h> |
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| 19 | #include "scales.h" |
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| 20 | int main(){ |
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| 21 | int i; |
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| 22 | double rate; |
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| 23 | for(i=64;i<32000;i*=2){ |
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| 24 | rate=48000.f; |
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| 25 | fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n", |
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| 26 | rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2)); |
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| 27 | |
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| 28 | rate=44100.f; |
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| 29 | fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n", |
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| 30 | rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2)); |
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| 31 | |
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| 32 | rate=32000.f; |
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| 33 | fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n", |
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| 34 | rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2)); |
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| 35 | |
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| 36 | rate=22050.f; |
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| 37 | fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n", |
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| 38 | rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2)); |
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| 39 | |
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| 40 | rate=16000.f; |
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| 41 | fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n", |
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| 42 | rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2)); |
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| 43 | |
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| 44 | rate=11025.f; |
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| 45 | fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n", |
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| 46 | rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2)); |
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| 47 | |
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| 48 | rate=8000.f; |
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| 49 | fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n\n", |
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| 50 | rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2)); |
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| 51 | |
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| 52 | |
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| 53 | } |
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| 54 | { |
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| 55 | float i; |
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| 56 | int j; |
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| 57 | for(i=0.,j=0;i<28;i+=1,j++){ |
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| 58 | fprintf(stderr,"(%d) bark=%f %gHz (%d of 128)\n", |
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| 59 | j,i,fromBARK(i),(int)(fromBARK(i)/22050.*128.)); |
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| 60 | } |
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| 61 | } |
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| 62 | return(0); |
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| 63 | } |
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| 64 | |
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