audiostuff: spandsp-0.0.6pre17/tests/make_g168

author	Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date	Fri, 25 Jun 2010 15:50:58 +0200
parents
children

rev	line source
4 26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	1 /*
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	2 * SpanDSP - a series of DSP components for telephony
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	3 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	4 * makecss.c - Create the composite source signal (CSS) for G.168 testing.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	5 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	6 * Written by Steve Underwood <steveu@coppice.org>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	7 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	8 * Copyright (C) 2003 Steve Underwood
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	9 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	10 * All rights reserved.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	11 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	12 * This program is free software; you can redistribute it and/or modify
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	13 * it under the terms of the GNU General Public License version 2, as
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	14 * published by the Free Software Foundation.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	15 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	16 * This program is distributed in the hope that it will be useful,
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	19 * GNU General Public License for more details.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	20 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	21 * You should have received a copy of the GNU General Public License
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	22 * along with this program; if not, write to the Free Software
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	24 *
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	25 * $Id: make_g168_css.c,v 1.18 2009/05/30 15:23:14 steveu Exp $
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	26 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	27
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	28 /*! \page makecss_page CSS construction for G.168 testing
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	29 \section makecss_page_sec_1 What does it do?
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	30 ???.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	31
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	32 \section makecss_page_sec_2 How does it work?
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	33 ???.
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	34 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	35
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	36 #if defined(HAVE_CONFIG_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	37 #include "config.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	38 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	39
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	40 #include <stdlib.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	41 #include <unistd.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	42 #include <string.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	43 #include <time.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	44 #include <stdio.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	45 #include <fcntl.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	46 #include <sndfile.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	47 #if defined(HAVE_FFTW3_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	48 #include <fftw3.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	49 #else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	50 #include <fftw.h>
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	51 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	52
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	53 //#if defined(WITH_SPANDSP_INTERNALS)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	54 #define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	55 //#endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	56
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	57 #include "spandsp.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	58 #include "spandsp/g168models.h"
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	59
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	60 #if !defined(NULL)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	61 #define NULL (void *) 0
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	62 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	63
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	64 #define FAST_SAMPLE_RATE 44100.0
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	65
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	66 #define C1_VOICED_SAMPLES 2144 /* 48.62ms at 44100 samples/second => 2144.142 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	67 #define C1_NOISE_SAMPLES 8820 /* 200ms at 44100 samples/second => 8820.0 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	68 #define C1_SILENCE_SAMPLES 4471 /* 101.38ms at 44100 samples/second => 4470.858 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	69
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	70 #define C3_VOICED_SAMPLES 3206 /* 72.69ms at 44100 samples/second => 3205.629 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	71 #define C3_NOISE_SAMPLES 8820 /* 200ms at 44100 samples/second => 8820.0 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	72 #define C3_SILENCE_SAMPLES 5614 /* 127.31ms at 44100 samples/second => 5614.371 */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	73
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	74 static double scaling(double f, double start, double end, double start_gain, double end_gain)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	75 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	76 double scale;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	77
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	78 scale = start_gain + (f - start)*(end_gain - start_gain)/(end - start);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	79 return scale;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	80 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	81 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	82
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	83 static double peak(const int16_t amp[], int len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	84 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	85 int16_t peak;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	86 int i;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	87
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	88 peak = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	89 for (i = 0; i < len; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	90 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	91 if (abs(amp[i]) > peak)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	92 peak = abs(amp[i]);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	93 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	94 return peak/32767.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	95 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	96 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	97
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	98 static double rms(const int16_t amp[], int len)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	99 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	100 double ms;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	101 int i;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	102
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	103 ms = 0.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	104 for (i = 0; i < len; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	105 ms += amp[i]*amp[i];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	106 return sqrt(ms/len)/32767.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	107 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	108 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	109
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	110 static double rms_to_dbm0(double rms)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	111 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	112 return 20.0*log10(rms) + DBM0_MAX_POWER;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	113 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	114 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	115
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	116 static double rms_to_db(double rms)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	117 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	118 return 20.0*log10(rms);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	119 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	120 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	121
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	122 int main(int argc, char *argv[])
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	123 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	124 #if defined(HAVE_FFTW3_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	125 double in[8192][2];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	126 double out[8192][2];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	127 #else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	128 fftw_complex in[8192];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	129 fftw_complex out[8192];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	130 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	131 fftw_plan p;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	132 int16_t voiced_sound[8192];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	133 int16_t noise_sound[8830];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	134 int16_t silence_sound[8192];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	135 int i;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	136 int outframes;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	137 int voiced_length;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	138 double f;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	139 double pk;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	140 double ms;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	141 double scale;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	142 SNDFILE *filehandle;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	143 SF_INFO info;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	144 awgn_state_t noise_source;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	145
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	146 memset(&info, 0, sizeof(info));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	147 info.frames = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	148 info.samplerate = FAST_SAMPLE_RATE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	149 info.channels = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	150 info.format = SF_FORMAT_WAV \| SF_FORMAT_PCM_16;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	151 info.sections = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	152 info.seekable = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	153 if ((filehandle = sf_open("sound_c1.wav", SFM_WRITE, &info)) == NULL)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	154 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	155 fprintf(stderr, " Failed to open result file\n");
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	156 exit(2);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	157 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	158
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	159 printf("Generate C1\n");
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	160 /* The set of C1 voice samples is ready for use in the output file. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	161 voiced_length = sizeof(css_c1)/sizeof(css_c1[0]);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	162 for (i = 0; i < voiced_length; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	163 voiced_sound[i] = css_c1[i];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	164 pk = peak(voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	165 ms = rms(voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	166 printf("Voiced level = %.2fdB, crest factor = %.2fdB\n", rms_to_dbm0(ms), rms_to_db(pk/ms));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	167
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	168 #if defined(HAVE_FFTW3_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	169 p = fftw_plan_dft_1d(8192, in, out, FFTW_BACKWARD, FFTW_ESTIMATE);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	170 #else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	171 p = fftw_create_plan(8192, FFTW_BACKWARD, FFTW_ESTIMATE);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	172 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	173 for (i = 0; i < 8192; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	174 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	175 #if defined(HAVE_FFTW3_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	176 in[i][0] = 0.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	177 in[i][1] = 0.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	178 #else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	179 in[i].re = 0.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	180 in[i].im = 0.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	181 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	182 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	183 for (i = 1; i <= 3715; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	184 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	185 f = FAST_SAMPLE_RATE*i/8192.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	186
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	187 #if 1
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	188 if (f < 50.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	189 scale = -60.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	190 else if (f < 100.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	191 scale = scaling(f, 50.0, 100.0, -25.8, -12.8);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	192 else if (f < 200.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	193 scale = scaling(f, 100.0, 200.0, -12.8, 17.4);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	194 else if (f < 215.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	195 scale = scaling(f, 200.0, 215.0, 17.4, 17.8);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	196 else if (f < 500.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	197 scale = scaling(f, 215.0, 500.0, 17.8, 12.2);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	198 else if (f < 1000.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	199 scale = scaling(f, 500.0, 1000.0, 12.2, 7.2);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	200 else if (f < 2850.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	201 scale = scaling(f, 1000.0, 2850.0, 7.2, 0.0);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	202 else if (f < 3600.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	203 scale = scaling(f, 2850.0, 3600.0, 0.0, -2.0);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	204 else if (f < 3660.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	205 scale = scaling(f, 3600.0, 3660.0, -2.0, -20.0);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	206 else if (f < 3680.0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	207 scale = scaling(f, 3600.0, 3680.0, -20.0, -30.0);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	208 else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	209 scale = -60.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	210 #else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	211 scale = 0.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	212 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	213 #if defined(HAVE_FFTW3_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	214 in[i][0] = ((rand() >> 10) & 0x1) ? 1.0 : -1.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	215 in[i][0] = pow(10.0, scale/20.0)35.0; //305360
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	216 in[8192 - i][0] = -in[i][0];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	217 #else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	218 in[i].re = ((rand() >> 10) & 0x1) ? 1.0 : -1.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	219 in[i].re = pow(10.0, scale/20.0)35.0; //305360
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	220 in[8192 - i].re = -in[i].re;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	221 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	222 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	223 #if defined(HAVE_FFTW3_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	224 fftw_execute(p);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	225 #else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	226 fftw_one(p, in, out);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	227 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	228 for (i = 0; i < 8192; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	229 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	230 #if defined(HAVE_FFTW3_H)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	231 noise_sound[i] = out[i][1];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	232 #else
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	233 noise_sound[i] = out[i].im;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	234 #endif
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	235 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	236 pk = peak(noise_sound, 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	237 ms = rms(noise_sound, 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	238 printf("Noise level = %.2fdB, crest factor = %.2fdB\n", rms_to_dbm0(ms), rms_to_db(pk/ms));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	239
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	240 for (i = 0; i < 8192; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	241 silence_sound[i] = 0.0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	242
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	243 for (i = 0; i < 16; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	244 outframes = sf_writef_short(filehandle, voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	245 printf("%d samples of voice\n", 16*voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	246 outframes = sf_writef_short(filehandle, noise_sound, 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	247 outframes = sf_writef_short(filehandle, noise_sound, C1_NOISE_SAMPLES - 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	248 printf("%d samples of noise\n", C1_NOISE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	249 outframes = sf_writef_short(filehandle, silence_sound, C1_SILENCE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	250 printf("%d samples of silence\n", C1_SILENCE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	251
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	252 /* Now phase invert the C1 set of voice samples. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	253 voiced_length = sizeof(css_c1)/sizeof(css_c1[0]);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	254 for (i = 0; i < voiced_length; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	255 voiced_sound[i] = -css_c1[i];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	256 pk = peak(voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	257 ms = rms(voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	258 printf("Voiced level = %.2fdB, crest factor = %.2fdB\n", rms_to_dbm0(ms), rms_to_db(pk/ms));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	259
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	260 for (i = 0; i < 8192; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	261 noise_sound[i] = -noise_sound[i];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	262
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	263 for (i = 0; i < 16; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	264 outframes = sf_writef_short(filehandle, voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	265 printf("%d samples of voice\n", 16*voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	266 outframes = sf_writef_short(filehandle, noise_sound, 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	267 outframes = sf_writef_short(filehandle, noise_sound, C1_NOISE_SAMPLES - 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	268 printf("%d samples of noise\n", C1_NOISE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	269 outframes = sf_writef_short(filehandle, silence_sound, C1_SILENCE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	270 printf("%d samples of silence\n", C1_SILENCE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	271
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	272 if (sf_close(filehandle) != 0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	273 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	274 fprintf(stderr, " Cannot close speech file '%s'\n", "sound_c1.wav");
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	275 exit(2);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	276 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	277
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	278 memset(&info, 0, sizeof(info));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	279 info.frames = 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	280 info.samplerate = FAST_SAMPLE_RATE;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	281 info.channels = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	282 info.format = SF_FORMAT_WAV \| SF_FORMAT_PCM_16;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	283 info.sections = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	284 info.seekable = 1;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	285 if ((filehandle = sf_open("sound_c3.wav", SFM_WRITE, &info)) == NULL)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	286 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	287 fprintf(stderr, " Failed to open result file\n");
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	288 exit(2);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	289 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	290
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	291 printf("Generate C3\n");
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	292 /* Take the supplied set of C3 voice samples. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	293 voiced_length = (sizeof(css_c3)/sizeof(css_c3[0]));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	294 for (i = 0; i < voiced_length; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	295 voiced_sound[i] = css_c3[i];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	296 pk = peak(voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	297 ms = rms(voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	298 printf("Voiced level = %.2fdB, crest factor = %.2fdB\n", rms_to_dbm0(ms), rms_to_db(pk/ms));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	299
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	300 awgn_init_dbm0(&noise_source, 7162534, rms_to_dbm0(ms));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	301 for (i = 0; i < 8192; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	302 noise_sound[i] = awgn(&noise_source);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	303 pk = peak(noise_sound, 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	304 ms = rms(noise_sound, 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	305 printf("Noise level = %.2fdB, crest factor = %.2fdB\n", rms_to_dbm0(ms), rms_to_db(pk/ms));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	306
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	307 for (i = 0; i < 14; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	308 outframes = sf_writef_short(filehandle, voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	309 printf("%d samples of voice\n", 14*voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	310
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	311 outframes = sf_writef_short(filehandle, noise_sound, 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	312 outframes = sf_writef_short(filehandle, noise_sound, C3_NOISE_SAMPLES - 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	313 printf("%d samples of noise\n", C3_NOISE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	314 outframes = sf_writef_short(filehandle, silence_sound, C3_SILENCE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	315 printf("%d samples of silence\n", C3_SILENCE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	316
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	317 /* Now phase invert the set of voice samples. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	318 voiced_length = (sizeof(css_c3)/sizeof(css_c3[0]));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	319 for (i = 0; i < voiced_length; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	320 voiced_sound[i] = -css_c3[i];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	321 pk = peak(voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	322 ms = rms(voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	323 printf("Voiced level = %.2fdB, crest factor = %.2fdB\n", rms_to_dbm0(ms), rms_to_db(pk/ms));
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	324
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	325 /* Now phase invert the set of noise samples. */
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	326 for (i = 0; i < 8192; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	327 noise_sound[i] = -noise_sound[i];
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	328
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	329 for (i = 0; i < 14; i++)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	330 outframes = sf_writef_short(filehandle, voiced_sound, voiced_length);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	331 printf("%d samples of voice\n", 14*i);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	332 outframes = sf_writef_short(filehandle, noise_sound, 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	333 outframes = sf_writef_short(filehandle, noise_sound, C3_NOISE_SAMPLES - 8192);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	334 printf("%d samples of noise\n", C3_NOISE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	335 outframes = sf_writef_short(filehandle, silence_sound, C3_SILENCE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	336 printf("%d samples of silence\n", C3_SILENCE_SAMPLES);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	337
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	338 if (sf_close(filehandle) != 0)
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	339 {
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	340 fprintf(stderr, " Cannot close speech file '%s'\n", "sound_c3.wav");
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	341 exit(2);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	342 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	343
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	344 fftw_destroy_plan(p);
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	345 return 0;
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	346 }
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	347 /- End of function --------------------------------------------------------/
26cd8f1ef0b1 import spandsp-0.0.6pre17 Peter Meerwald <pmeerw@cosy.sbg.ac.at> parents: diff changeset	348 /- End of file ------------------------------------------------------------/

4

26cd8f1ef0b1 import spandsp-0.0.6pre17