ConstantSourceNode: ConstantSourceNode() constructor
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.
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
AudioContextrepresenting the audio context you want the node to be associated with. options-
A
ConstantSourceOptionsdictionary object defining the properties you want theConstantSourceNodeto have:offset-
A read-only
AudioParamspecifying 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-InfinitytoInfinity.
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
| Specification |
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| Web Audio API # dom-constantsourcenode-constantsourcenode |
Browser compatibility
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ConstantSourceNode() constructor
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