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
var constantSourceNode = 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 theConstantSourceNode
to have:-
offset
: A read-onlyAudioParam
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
.
-
Example
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
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