Set rate of SamplePlayer with envelope

[sc3...@gmail.com]

Hi,

I want to set the rate of SamplePlayer with an envelope

and I want that envelope to be retriggered when it is finished.

Is this the correct way ?

private void setRateEnvelope() {

float currentRate = this.samplePlayer.getRate();

Envelope envelope = new Envelope(this.audioContext);

envelope.addSegment(currentRate, 100f);

envelope.addSegment(0.2f, 8000f);

envelope.addSegment(2.2f, 10000f);

envelope.addSegment(currentRate, 8000f, new Bead() {

@Override

public void messageReceived(Bead b) {

setRateEnvelope();

}

});

this.samplePlayer.setRate(envelope);

}

Thanks

Regards

[Ollie Bown]

Generally that’s not a common way to do things (well OK maybe in JavaScript aync programming) as you don’t give yourself a way to exit the loop, but it works and you can still kill the signal chain, breaking the loop. Envelopes are not loopable. Two alternatives: (1) create a WavePlayer and populate a buffer with the envelope signal data. (2) use a clock to trigger this Envelope sequence (make sure you call “clear()” on the Envelope before restarting it, to ensure nothing gets backed up).

Ollie

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