OscillatorNode.constructor

The OscillatorNode() constructor 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

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.

Specifications

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

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