The createConstantSource() property of the BaseAudioContext interface creates a ConstantSourceNode object, which is an audio source that continuously outputs a monaural (one-channel) sound signal whose samples all have the same value.
Note: The ConstantSourceNode() constructor is the recommended way to create a ConstantSourceNode; see Creating an AudioNode.
js
createConstantSource()
None.
A ConstantSourceNode instance.
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https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext/createConstantSource