113 lines
4.6 KiB
C
113 lines
4.6 KiB
C
/*************************************************************************/
|
|
/* */
|
|
/* Language Technologies Institute */
|
|
/* Carnegie Mellon University */
|
|
/* Copyright (c) 2009 */
|
|
/* All Rights Reserved. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to use and distribute */
|
|
/* this software and its documentation without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of this work, and to */
|
|
/* permit persons to whom this work is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* 1. The code must retain the above copyright notice, this list of */
|
|
/* conditions and the following disclaimer. */
|
|
/* 2. Any modifications must be clearly marked as such. */
|
|
/* 3. Original authors' names are not deleted. */
|
|
/* 4. The authors' names are not used to endorse or promote products */
|
|
/* derived from this software without specific prior written */
|
|
/* permission. */
|
|
/* */
|
|
/* CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK */
|
|
/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
|
|
/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
|
|
/* SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE */
|
|
/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
|
|
/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
|
|
/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
|
|
/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
|
|
/* THIS SOFTWARE. */
|
|
/* */
|
|
/*************************************************************************/
|
|
/* Author: Alan W Black (awb@cs.cmu.edu) */
|
|
/* Date: November 2009 */
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Compare two waveforms */
|
|
/*************************************************************************/
|
|
#include <stdio.h>
|
|
#include "cst_wave.h"
|
|
#include "cst_tokenstream.h"
|
|
#include "cst_args.h"
|
|
#include "cst_math.h"
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
cst_wave *w1, *w2;
|
|
cst_val *files;
|
|
cst_features *args;
|
|
int i1, i2, l;
|
|
double d,s;
|
|
double b;
|
|
int best,x, y;
|
|
const char *f1, *f2;
|
|
|
|
args = new_features();
|
|
files =
|
|
cst_args(argv,argc,
|
|
"usage: compare_waves OPTIONS WAVE1 WAVE2\n"
|
|
"Compare two waveformfiles\n",
|
|
args);
|
|
|
|
f1 = val_string(val_car(files));
|
|
f2 = val_string(val_car(val_cdr(files)));
|
|
w1 = new_wave();
|
|
w2 = new_wave();
|
|
|
|
if (cst_wave_load_riff(w1,f1) != CST_OK_FORMAT)
|
|
{
|
|
fprintf(stderr,
|
|
"compare_wave: can't read file or wrong format \"%s\"\n",
|
|
f1);
|
|
return -1;
|
|
}
|
|
|
|
if (cst_wave_load_riff(w2,f2) != CST_OK_FORMAT)
|
|
{
|
|
fprintf(stderr,
|
|
"compare_wave: can't read file or wrong format \"%s\"\n",
|
|
f2);
|
|
return -1;
|
|
}
|
|
|
|
s = 0.0;
|
|
if (w1->num_samples > w2->num_samples)
|
|
l = w2->num_samples;
|
|
else
|
|
l = w1->num_samples;
|
|
b=-1;
|
|
best = -80;
|
|
y = -20;
|
|
x = -53;
|
|
for (i1=80,i2=80; i1 < l-160; i1++,i2++)
|
|
{
|
|
/* d = w1->samples[i1+y] - ((1.0+(x/100.0)) * (float)w2->samples[i2]); */
|
|
d = abs(w1->samples[i1+y]) - ((1.0+(x/100.0)) * (float)abs(w2->samples[i2]));
|
|
s += d*d;
|
|
}
|
|
s /= (l-160)-80;
|
|
/* printf("%f %d %f %d\n",sqrt(s),x,b,best); */
|
|
if (b < 0)
|
|
b = s; /* first time through loop */
|
|
if (s < b)
|
|
{
|
|
b = s;
|
|
best = x;
|
|
}
|
|
|
|
printf("%f %d\n",sqrt(b),best);
|
|
|
|
return 0;
|
|
}
|