AudioDestinationNode

AudioDestinationNode has no output (as it is the output, no more AudioNode can be linked after it in the audio graph) and one input. The amount of channels in the input must be between 0 and the maxChannelCount value or an exception is raised.

The AudioDestinationNode of a given AudioContext can be retrieved using the AudioContext.destination property.

Number of inputs	1
Number of outputs	0
Channel count mode	"explicit"
Channel count	2
Channel interpretation	"speakers"

Properties

Inherits properties from its parent, AudioNode.

AudioDestinationNode.maxChannelCount

Is an unsigned long defining the maximum amount of channels that the physical device can handle.

Methods

No specific method; inherits methods from its parent, AudioNode.

Example

There is no complex set up for using an AudioDestinationNode — by default, this simply represents the output of the user's system (e.g. their speakers), so you can get it hooked up inside an audio graph using only a few lines of code:

var audioCtx = new AudioContext();
var source = audioCtx.createMediaElementSource(myMediaElement);
source.connect(gainNode);
gainNode.connect(audioCtx.destination);

To see a more complete implementation, check out one of our MDN Web Audio examples, such as Voice-change-o-matic or Violent Theremin.

Specifications

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

Browser compatibility

See also

• Using the Web Audio API