DelayNode

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.

The DelayNode interface represents a delay-line; an AudioNode audio-processing module that causes a delay between the arrival of an input data and its propagation to the output.

A DelayNode always has exactly one input and one output, both with the same amount of channels.

The DelayNode acts as a delay-line, here with a value of 1s.

When creating a graph that has a cycle, it is mandatory to have at least one DelayNode in the cycle, or the nodes taking part in the cycle will be muted.

EventTarget AudioNode DelayNode
Number of inputs 1
Number of outputs 1
Channel count mode "max"
Channel count 2 (not used in the default count mode)
Channel interpretation "speakers"

Constructor

DelayNode()

Creates a new instance of an DelayNode object instance. As an alternative, you can use the BaseAudioContext.createDelay() factory method; see Creating an AudioNode.

Instance properties

Inherits properties from its parent, AudioNode.

DelayNode.delayTime Read only

An a-rate AudioParam representing the amount of delay to apply, specified in seconds.

Instance methods

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

Example

See BaseAudioContext.createDelay() for example code.

Specifications

Specification
Web Audio API
# DelayNode

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
DelayNode
DelayNode() constructor
delayTime

Legend

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Full support
Full support

See also