AudioProcessingEvent
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The Web Audio API AudioProcessingEvent
represents events that occur when a ScriptProcessorNode
input buffer is ready to be processed.
Note: As of the August 29 2014 Web Audio API spec publication, this feature has been marked as deprecated, and is soon to be replaced by AudioWorklet.
Properties
Also implements the properties inherited from its parent, Event
.
playbackTime
Read only-
: A double representing the time when the audio will be played,
as defined by the time of
AudioContext.currentTime
. inputBuffer
Read only-
: An
AudioBuffer
that is the buffer containing the input audio data to be processed. The number of channels is defined as a parameternumberOfInputChannels
, of the factory methodAudioContext.createScriptProcessor()
. Note that the returnedAudioBuffer
is only valid in the scope of the event handler.
-
: An
outputBuffer
Read only-
: An
AudioBuffer
that is the buffer where the output audio data should be written. The number of channels is defined as a parameter,numberOfOutputChannels
, of the factory methodAudioContext.createScriptProcessor()
. Note that the returnedAudioBuffer
is only valid in the scope of the event handler.
-
: An
Example
See BaseAudioContext.createScriptProcessor()
for example code that uses an AudioProcessingEvent
.
Browser compatibility
BCD tables only load in the browser