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64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
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/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
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* by the Xiph.Org Foundation http://www.xiph.org/ *
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* *
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********************************************************************
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function: bark scale utility
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********************************************************************/
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#include <stdio.h>
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#include "scales.h"
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int main(){
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int i;
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double rate;
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for(i=64;i<32000;i*=2){
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rate=48000.f;
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fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
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rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
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rate=44100.f;
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fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
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rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
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rate=32000.f;
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fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
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rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
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rate=22050.f;
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fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
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rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
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rate=16000.f;
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fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
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rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
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rate=11025.f;
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fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
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rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
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rate=8000.f;
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fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n\n",
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rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
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}
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{
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float i;
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int j;
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for(i=0.,j=0;i<28;i+=1,j++){
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fprintf(stderr,"(%d) bark=%f %gHz (%d of 128)\n",
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j,i,fromBARK(i),(int)(fromBARK(i)/22050.*128.));
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}
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}
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return(0);
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}
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