DelayNode

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.

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.

Properties

Inherits properties from its parent, AudioNode.

DelayNode.delayTime Read only: Is an a-rate AudioParam representing the amount of delay to apply, specified in seconds.

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

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`DelayNode`	14	12	25	No	15	6	≤37	18	25	14	Yes	1.0
`DelayNode`	55 Before version 59, the default values were not supported.	79	53	No	42	14.1	55 Before version 59, the default values were not supported.	55 Before version 59, the default values were not supported.	53	42	14.5	6.0 Before Samsung Internet 7.0, the default values were not supported.
`delayTime`	14	12	25	No	15	6	≤37	18	25	14	Yes	1.0