start

Summary

Schedules a sound to playback at an exact time.

Method of apis/webaudio/OscillatorNodeapis/webaudio/OscillatorNode

Syntax

var  = OscillatorNode.start(when);

Parameters

when

Data-type

Number

Describes at what time (in seconds) the sound should start playing. It is in the same time coordinate system as AudioContext.currentTime. If 0 is passed in for this value or if the value is less than currentTime, then the sound will start playing immediately. start may only be called one time and must be called before stop is called or an exception will be thrown.

Return Value

Returns an object of type

Examples

var oscillator = audioCtx.createOscillator();
oscillator.type = 'square';
oscillator.frequency.value = 3000; // value in hertz
oscillator.start(); // start playing immediately

Related specifications

W3C Web Audio API

W3C Editor’s Draft