audioprocess

The audioprocess event is fired when an input buffer of a Web Audio API ScriptProcessorNode is ready to be processed.

General info

Specification

Web Audio API
The definition of 'AudioProcessingEvent' in that specification.

Interface

AudioProcessingEvent

Bubbles

?

Cancelable

?

Target

ScriptProcessorNode

Default Action

None

Properties

Property	Type	Description
target Read only	EventTarget	The event target (the topmost target in the DOM tree).
type Read only	DOMString	The type of event.
bubbles Read only	boolean	Does the event normally bubble?
cancelable Read only	boolean	Is it possible to cancel the event?
playbackTime Read only	double	The time when the audio will be played, as defined by the time of AudioContext.currentTime
inputBuffer Read only	AudioBuffer	The buffer containing the input audio data to be processed. The number of channels is defined as a parameter, numberOfInputChannels, of the factory method AudioContext.createScriptProcessor(). Note the returned AudioBuffer is only valid in the scope of the onaudioprocess function.
outputBuffer Read only	AudioBuffer	The buffer where the output audio data should be written. The number of channels is defined as a parameter, numberOfOutputChannels, of the factory method AudioContext.createScriptProcessor(). Note the returned AudioBuffer is only valid in the scope of the onaudioprocess function.

Specifications

Specification	Status	Comment
Web Audio API The definition of 'AudioProcessingEvent' in that specification.	Working Draft

Browser compatibility

• Desktop
• Mobile

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	(Yes)webkit	(Yes)	Nightly build	No support	No support	?

Feature	Android	Edge	Firefox Mobile (Gecko)	IE Phone	Opera Mobile	Safari Mobile
Basic support	?	(Yes)	Nightly build	No support	No support	?

See also

• Web Audio API