source: downloads/freealut-1.1.0/test_suite/test_waveforms.c @ 14

#include <stdlib.h>
#include <AL/alut.h>

/*
 * This program plays a 440Hz tone using a variety of waveforms.
 */

static void
playTone (ALenum waveshape)
{
  ALuint buffer, source;
  buffer = alutCreateBufferWaveform (waveshape, 440, 0, 1);
  alGenSources (1, &source);
  alSourcei (source, AL_BUFFER, buffer);
  alSourcePlay (source);
  alutSleep (1);
}

int
main (int argc, char **argv)
{
  alutInit (&argc, argv);

  playTone (ALUT_WAVEFORM_SINE);
  playTone (ALUT_WAVEFORM_SQUARE);
  playTone (ALUT_WAVEFORM_SAWTOOTH);
  playTone (ALUT_WAVEFORM_WHITENOISE);
  playTone (ALUT_WAVEFORM_IMPULSE);

  alutExit ();
  return EXIT_SUCCESS;
}