Web/API/OscillatorNode/OscillatorNode

The OscillatorNode() constructor of the Web Audio API creates a new OscillatorNode object which is an AudioNode that represents a periodic waveform, like a sine wave, optionally setting the node's properties' values to match values in a specified object.

If the default values of the properties are acceptable, you can optionally use the AudioContext.createOscillator() factory method instead.

Syntax

var oscillatorNode = new OscillatorNode(context, options)

Parameters

Inherits parameters from the AudioNodeOptions dictionary.

context

A reference to an AudioContext.

options Optional

An object whose properties specify the initial values for the oscillator node's properties. Any properties omitted from the object will take on the default value as documented.

type

The shape of the wave produced by the node. Valid values are 'sine', 'square', 'sawtooth', 'triangle' and 'custom'. The default is 'sine'.

detune

A detuning value (in cents) which will offset the frequency by the given amount. Its default is 0.

frequency

The frequency (in hertz) of the periodic waveform. Its default is 440.

periodicWave

An arbitrary period waveform described by a PeriodicWave object.

Return value

A new OscillatorNode object instance.

Specifications

Specification	Status	Comment
Web Audio APIThe definition of 'OscillatorNode()' in that specification.	Working Draft	Initial definition.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
OscillatorNode() constructor	Chrome Full support 55 Notes' Full support 55 Notes' Notes' Before Chrome 59, the default values were not supported.	Edge Full support 79	Firefox Full support 53	IE No support No	Opera Full support 42	Safari No support No	WebView Android Full support 55 Notes' Full support 55 Notes' Notes' Before version 59, the default values were not supported.	Chrome Android Full support 55 Notes' Full support 55 Notes' Notes' Before Chrome 59, the default values were not supported.	Firefox Android Full support 53	Opera Android Full support 42	Safari iOS No support No	Samsung Internet Android Full support 6.0 Notes' Full support 6.0 Notes' Notes' Before Samsung Internet 7.0, the default values were not supported.

Legend

Full support  

Full support

No support  

No support

See implementation notes.'

See implementation notes.

OscillatorNode.OscillatorNode() by Mozilla Contributors is licensed under CC-BY-SA 2.5.