int main (int argc, char **argv)
{
Lyd *lyd;
LydVoice *voice;
LydProgram *instrument;
int i;
const char *code = "saw(hz=440.0) * adsr(0.1, 0.2, 0.8, 0.50) * 2";
float scale[]={261.63, 293.66, 329.63, 349.23, 392.0,
440.0, 493.88, 523.25, 493.88, 440.0,
392.0, 349.23, 329.63, 293.66, 261.0};
lyd = lyd_new ();
if (!lyd_audio_init (lyd, "auto"))
{
lyd_free (lyd);
printf ("failed to initialize lyd (audio output)\n");
return -1;
}
instrument = lyd_compile (lyd, code);
for (i = 0; i<14;i++)
{
voice = lyd_voice_new (lyd, instrument, 0.3 * i, 0);
lyd_voice_set_param (voice, "hz", scale[i]);
lyd_voice_set_duration (voice, 0.2);
}
lyd_program_free (instrument);
sleep (5);
lyd_free (lyd);
return 0;
}
LydVM *lyd_note_full (Lyd *lyd,
int patch,
float hz,
float volume,
float duration,
float pan,
int hashkey)
{
LydVM *voice;
if (!midi_programs[patch])
midi_programs[patch] = lyd_compile (lyd, midi_patches[patch]);
if (!midi_programs[patch])
return NULL;
voice = lyd_voice_new (lyd, midi_programs[patch], 0.0, hashkey);
lyd_voice_set_param (voice, "volume", volume);
lyd_voice_set_param (voice, "hz", hz);
lyd_voice_set_duration (voice, duration);
lyd_voice_set_position (voice, pan);
return voice;
}