public static void operations_test(AudioPlayer pl)
{
WaveAudio noteLongLow = new Triangle(Triangle.FrequencyFromMidiNote(60), 0.5).CreateWaveAudio(1.0);
WaveAudio noteShortHi = new Triangle(Triangle.FrequencyFromMidiNote(64), 0.5).CreateWaveAudio(0.5);
pl.Play(WaveAudio.Concatenate(noteLongLow, noteShortHi));
pl.Play(WaveAudio.Concatenate(noteShortHi, noteLongLow));
pl.Play(WaveAudio.Mix(noteShortHi, noteLongLow));
pl.Play(WaveAudio.Mix(noteLongLow, noteShortHi));
WaveAudio tmp = new Sine(200, 1.0).CreateWaveAudio(4.0);
tmp.setNumChannels(2, true);
pl.Play(WaveAudio.Modulate(new WaveAudio(mediadir + "d44k16bit2ch.wav"), tmp));
WaveAudio cp;
cp = noteLongLow.Clone(); cp.FadeIn(0.3); pl.Play(cp);
cp = noteLongLow.Clone(); cp.FadeOut(0.3); pl.Play(cp);
cp = noteLongLow.Clone(); cp.Amplify(0.5); pl.Play(cp);
cp = noteLongLow.Clone(); cp.Amplify(2.0); pl.Play(cp);
}