Baseline Widely available
The PeriodicWave() constructor of the Web Audio API creates a new PeriodicWave object instance.
new PeriodicWave(context)
new PeriodicWave(context, options)
context
A BaseAudioContext representing the audio context you want the node to be associated with.
options Optional
A PeriodicWaveOptions dictionary object defining the properties you want the PeriodicWave to have (It also inherits the options defined in the PeriodicWaveConstraints dictionary.):
real
A Float32Array containing the cosine terms that you want to use to form the wave (equivalent to the real parameter of BaseAudioContext.createPeriodicWave).
imag
A Float32Array containing the sine terms that you want to use to form the wave (equivalent to the imag parameter of BaseAudioContext.createPeriodicWave).
channelCount
Represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node. (See AudioNode.channelCount for more information.) Its usage and precise definition depend on the value of channelCountMode.
channelCountMode
Represents an enumerated value describing the way channels must be matched between the node's inputs and outputs. (See AudioNode.channelCountMode for more information including default values.)
channelInterpretation
Represents an enumerated value describing the meaning of the channels. This interpretation will define how audio up-mixing and down-mixing will happen. The possible values are "speakers" or "discrete". (See AudioNode.channelCountMode for more information including default values.)
A new PeriodicWave object instance.
const real = new Float32Array(2);
const imag = new Float32Array(2);
const ac = new AudioContext();
real[0] = 0;
imag[0] = 0;
real[1] = 1;
imag[1] = 0;
const wave = new PeriodicWave(ac, {
real,
imag,
disableNormalization: false,
});
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