class js.html.audio.AudioBuffer

var duration:Float

var length:Int

var numberOfChannels:Int

var sampleRate:Float

function copyFromChannel(destination:Float32Array, channelNumber:Int, ?startInChannel:Int = 0):Void

function copyToChannel(source:Float32Array, channelNumber:Int, ?startInChannel:Int = 0):Void

function getChannelData(channel:Int):Float32Array