/*************************************************************************//* *//* Language Technologies Institute *//* Carnegie Mellon University *//* Copyright (c) 2015 *//* 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: August 2015 *//*************************************************************************//* *//* subtract window average from waveform *//*************************************************************************/#include <stdio.h>#include "flite.h"#include "cst_wave.h"#include "cst_args.h"int main(int argc, char **argv){ cst_wave *in, *out; cst_val *files; cst_features *args; int i,j; int w, a, t; args = new_features(); files = cst_args(argv,argc, "usage: dcoffset_wave OPTIONS\n" "Subtract window average from waveform\n" "-i <string> Input waveform\n" "-o <string> Output waveform\n" "-w <int> Window size (in samples)\n", args); w = flite_get_param_int(args,"-w",20); in = new_wave(); cst_wave_load_riff(in,flite_get_param_string(args,"-i","-")); out = copy_wave(in); for (i=0; i<=out->num_samples; i++) { for (t=a=0,j=i-w/2; j < i+w/2; j++) { if ((j > 0) && (j < out->num_samples)) { t += 1; a+=in->samples[j]; } } /* printf("%d %d %d %d %d\n",i,out->samples[i],a/t,t,out->samples[i]-a/t); */ out->samples[i] -= a/t; } cst_wave_save_riff(out,flite_get_param_string(args,"-o","-")); return 0;}
/*************************************************************************/
/* */
/* Language Technologies Institute */
/* Carnegie Mellon University */
/* Copyright (c) 2015 */
/* 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: August 2015 */
/*************************************************************************/
/* */
/* subtract window average from waveform */
/*************************************************************************/
#include <stdio.h>
#include "flite.h"
#include "cst_wave.h"
#include "cst_args.h"
int main(int argc, char **argv)
{
cst_wave *in, *out;
cst_val *files;
cst_features *args;
int i,j;
int w, a, t;
args = new_features();
files =
cst_args(argv,argc,
"usage: dcoffset_wave OPTIONS\n"
"Subtract window average from waveform\n"
"-i <string> Input waveform\n"
"-o <string> Output waveform\n"
"-w <int> Window size (in samples)\n",
args);
w = flite_get_param_int(args,"-w",20);
in = new_wave();
cst_wave_load_riff(in,flite_get_param_string(args,"-i","-"));
out = copy_wave(in);
for (i=0; i<=out->num_samples; i++)
{
for (t=a=0,j=i-w/2; j < i+w/2; j++)
{
if ((j > 0) && (j < out->num_samples))
{
t += 1;
a+=in->samples[j];
}
}
/* printf("%d %d %d %d %d\n",i,out->samples[i],a/t,t,out->samples[i]-a/t); */
out->samples[i] -= a/t;
}
cst_wave_save_riff(out,flite_get_param_string(args,"-o","-"));
return 0;
}