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.
new DelayNode(context)
new DelayNode(context, options)contextA reference to an AudioContext or OfflineAudioContext.
options OptionalAn object specifying the delay node options. Can contain the following members:
delayTimeThe initial delay time for the node, in seconds. The default is 0.
maxDelayTimeThe maximum delay time for the node, in seconds. Defaults to 1.
channelCountRepresents 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.channelCount for more information.) Its usage and precise definition depend on the value of channelCountMode.
channelCountModeRepresents an enumerated value describing the way channels must be matched between the node's inputs and outputs. (See AudioNode.channelCountMode for more information including default values.)
channelInterpretationRepresents 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". (See AudioNode.channelCountMode for more information including default values.)
A new DelayNode object instance.
const audioCtx = new AudioContext();
const delayNode = new DelayNode(audioCtx, {
delayTime: 0.5,
maxDelayTime: 2,
});