Web/API/PeriodicWave/PeriodicWave

The PeriodicWave() constructor of the Web Audio API creates a new PeriodicWave object instance.

Syntax

var myWave = new PeriodicWave(context, options);

Parameters

Inherits parameters from the AudioNodeOptions dictionary.

context: A BaseAudioContext representing the audio context you want the node to be associated with.
options Optional: A PeriodicWaveOptions dictionary object defining the properties you want the PeriodicWave to have (It also inherits the options defined in the PeriodicWaveConstraints dictionary.):

real

A Float32Array containing the cosine terms that you want to use to form the wave (equivalent to the real parameter of AudioContext.createPeriodicWave).
imag: A Float32Array containing the sine terms that you want to use to form the wave (equivalent to the imag parameter of AudioContext.createPeriodicWave).

Return value

A new PeriodicWave object instance.

Example

var real = new Float32Array(2);
var imag = new Float32Array(2);
var ac = new AudioContext();

real[0] = 0;
imag[0] = 0;
real[1] = 1;
imag[1] = 0;

var options = {
  real : real,
  imag : imag,
  disableNormalization : false
}

var wave = new PeriodicWave(ac, options);

Specifications

Specification	Status	Comment
Web Audio APIThe definition of 'PeriodicWave' in that specification.	Working Draft

Browser compatibility

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
`PeriodicWave()` 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 ?	WebView Android Full support 55 Notes' Full support 55 Notes' Notes' Before Chrome 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 ?	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
Compatibility unknown: Compatibility unknown
See implementation notes.': See implementation notes.

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