DelayNode
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
TheDelayNode interface represents adelay-line; anAudioNode audio-processing module that causes a delay between the arrival of an input data and its propagation to the output.
ADelayNode always has exactly one input and one output, both with the same amount of channels.

When creating a graph that has a cycle, it is mandatory to have at least oneDelayNode 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" |
In this article
Constructor
DelayNode()Creates a new instance of a DelayNode object instance. As an alternative, you can use the
BaseAudioContext.createDelay()factory method; seeCreating an AudioNode.
Instance properties
Inherits properties from its parent,AudioNode.
DelayNode.delayTimeRead onlyAna-rate
AudioParamrepresenting the amount of delay to apply, specified in seconds.
Instance methods
No specific methods; inherits methods from its parent,AudioNode.
Example
SeeBaseAudioContext.createDelay() for example code.
Specifications
| Specification |
|---|
| Web Audio API> # DelayNode> |