DelayNode: DelayNode() constructor
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()
constructor of the Web Audio API
creates a new DelayNode object with 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.
Syntax
new DelayNode(context)
new DelayNode(context, options)
Parameters
context-
A reference to an
AudioContextorOfflineAudioContext. optionsOptional-
An object specifying the delay node options. Can contain the following members:
delayTime-
The initial delay time for the node, in seconds. The default is
0. maxDelayTime-
The maximum delay time for the node, in seconds. Defaults to
1. channelCount-
Represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node. (See
AudioNode.channelCountfor more information.) Its usage and precise definition depend on the value ofchannelCountMode. channelCountMode-
Represents an enumerated value describing the way channels must be matched between the node's inputs and outputs. (See
AudioNode.channelCountModefor more information including default values.) channelInterpretation-
Represents an enumerated value describing the meaning of the channels. This interpretation will define how audio up-mixing and down-mixing will happen. The possible values are
"speakers"or"discrete". (SeeAudioNode.channelCountModefor more information including default values.)
Return value
A new DelayNode object instance.
Examples
const audioCtx = new AudioContext();
const delayNode = new DelayNode(audioCtx, {
delayTime: 0.5,
maxDelayTime: 2,
});
Specifications
| Specification |
|---|
| Web Audio API # dom-delaynode-delaynode |