DelayNode

{{APIRef("Web Audio API")}}

The DelayNode interface represents a delay-line; an {{domxref("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.

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.

{{InheritanceDiagram}}

<table class="properties"> <tbody> <tr> <th scope="row">Number of inputs</th> <td><code>1</code></td> </tr> <tr> <th scope="row">Number of outputs</th> <td><code>1</code></td> </tr> <tr> <th scope="row">Channel count mode</th> <td><code>"max"</code></td> </tr> <tr> <th scope="row">Channel count</th> <td><code>2</code> (not used in the default count mode)</td> </tr> <tr> <th scope="row">Channel interpretation</th> <td><code>"speakers"</code></td> </tr> </tbody> </table>

Constructor

• {{domxref("DelayNode.DelayNode", "DelayNode()")}}
  • : Creates a new instance of a DelayNode object instance. As an alternative, you can use the {{domxref("BaseAudioContext.createDelay()")}} factory method; see Creating an AudioNode.

Instance properties

Inherits properties from its parent, {{domxref("AudioNode")}}.

• {{domxref("DelayNode.delayTime")}} {{ReadOnlyInline}}
  • : An a-rate {{domxref("AudioParam")}} representing the amount of delay to apply, specified in seconds.

Instance methods

No specific methods; inherits methods from its parent, {{domxref("AudioNode")}}.

Example

See BaseAudioContext.createDelay() for example code.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• Using the Web Audio API