Tutorials: Getting Started

In this tutorial, we're going to go do something very basic: create a sine oscillator at 440Hz.

So, in order to create a sine tone, we'll have to create an AudioDevice instance for output and an Oscillator instance for the tone. This is how it happens:

var dev, osc;

function audioCallback(buffer, channelCount){
    // Fill the buffer with the oscillator output.
    osc.append(buffer, channelCount);
}

window.addEventListener('load', function(){
    // Create an instance of the AudioDevice class
    dev = audioLib.AudioDevice(audioCallback /* callback for the buffer fills */, 2 /* channelCount */);
    // Create an instance of the Oscillator class
    osc = audioLib.Oscillator(dev.sampleRate /* sampleRate */, 440 /* frequency */);
}, true);

Back to Tutorials