DelayNode

The DelayNode interface represents latency in an audio signal by a given amount of time. It is an AudioNode that applies time shift to incoming signal f.e. if delayTime value is 0.5, it means that audio will be played after 0.5 seconds.

info

Delay is a node with tail-time, which means that it continues to output non-silent audio with zero input for the duration of delayTime.

Constructor

constructor(context: BaseAudioContext, options?: DelayOptions)

DelayOptions

Inherits all properties from AudioNodeOptions.

Parameter	Type	Default
maxDelayTime Optional	number	1.0	Maximum amount of time, in seconds, to buffer delayed values.
delayTime Optional	number	0.0	Initial value for delayTime.

You can also create a DelayNode via the BaseAudioContext.createDelay(maxDelayTime?: number) factory method, which uses default values when called without arguments.

Properties

Inherits all properties from AudioNode.

AudioNodeproperties

Name	Type	Description
delayTime	Read only AudioParam	k-rate AudioParam representing value of time shift to apply.

warning

In web audio api specs delayTime is an a-rate param.

Methods

Inherits all methods from AudioNode.

AudioNodemethods

DelayNode does not define any additional methods.

Remarks

maxDelayTime

• Default value is 1.0.
• Nominal range is 0.0 - 180.0.

delayTime

• Default value is 0.0.
• Nominal range is 0.0 - maxDelayTime.