ref: 5095f44178e0cbf98419f1a4a22b5d0581813877
dir: /testsuite/dcoffset_wave_main.c/
/*************************************************************************/ /* */ /* 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; }