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/*
* Copyright (C) 2003 by Jonathan Naylor G4KLX/HB9DRD
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ToneGenerator.h"
#include "common/Exception.h"
#include "common/SoundFile.h"
#include "common/NCO.h"
int main(int argc, char *argv[])
{
if (argc < 4) {
::fprintf(stderr, "Usage: ToneGenerator <frequency> <amplitude> <length> <outfile>\n");
return 1;
}
double frequency = ::atof(argv[1]);
double amplitude = ::atof(argv[2]);
unsigned int length = ::atoi(argv[3]);
wxString fileName = wxString(argv[4]);
try {
CToneGenerator noise(frequency, amplitude, length, fileName);
noise.run();
}
catch (CException& ex) {
::fprintf(stderr, "ToneGenerator: error: %s\n", ex.getMessage().c_str());
return 1;
}
catch (...) {
::fprintf(stderr, "ToneGenerator: an error has occured\n");
return 1;
}
return 0;
}
CToneGenerator::CToneGenerator(double frequency, double amplitude, unsigned int length, const wxString& fileName) :
m_frequency(frequency),
m_amplitude(amplitude),
m_length(length),
m_fileName(fileName)
{
}
CToneGenerator::~CToneGenerator()
{
}
void CToneGenerator::run()
{
CSoundFile out;
out.openWrite(m_fileName, 11025, 8);
int nSamples = 11025 * m_length;
CNCO nco(11025);
double* tones = new double[nSamples];
nco.generate(m_frequency, tones, nSamples);
out.write(tones, nSamples, m_amplitude);
out.close();
delete[] tones;
}
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