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ConstantSourceNode()

The ConstantSourceNode() constructor creates a new ConstantSourceNode object instance, representing an audio source which constantly outputs samples whose values are always the same.

Syntax

new ConstantSourceNode(context, options);

Parameters

context

An AudioContext representing the audio context you want the node to be associated with.

options

A ConstantSourceOptions dictionary object defining the properties you want the ConstantSourceNode to have:

  • offset: A read-only AudioParam specifying the constant value generated by the source. The default is 1.0. The normal range is -1.0 to 1.0, but the value can be anywhere in the range from -Infinity to +Infinity.

Examples

In this example, an audio context is created, then a ConstantSourceNode is established with its offset initialized to 0.5.

let audioContext = new AudioContext();

let myConstantSource = new ConstantSourceNode(audioContext, { offset: 0.5 });

Note: The new ConstantSourceNode created by the constructor has a channelCount of 2.

Specifications

Browser compatibility

Desktop Mobile
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ConstantSourceNode
56
79
52
No
43
14.1
56
56
52
43
14.5
6.0

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https://developer.mozilla.org/en-US/docs/Web/API/ConstantSourceNode/ConstantSourceNode