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 API The 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.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 551 | ? | 53 | No | 42 | ? |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | 551 | 551 | ? | 53 | No | 42 | ? |
1. Before Chrome 59, the default values were not supported.