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HTML5 JS API Index > Web Audio Tutorials & Specs

AudioParam

AudioParam controls an individual aspect of an AudioNode's functioning, such as volume. The parameter can be set immediately to a particular value using the value attribute. Or, value changes can be scheduled to happen at very precise times (in the coordinate system of AudioContext.currentTime), for envelopes, volume fades, LFOs, filter sweeps, grain windows, etc.

Properties
floatdefaultValue
floatvalue
Operations
voidcancelScheduledValues(double startTime)
voidexponentialRampToValueAtTime(float value, double endTime)
voidlinearRampToValueAtTime(float value, double endTime)
voidsetTargetAtTime(float target, double startTime, double timeConstant)
voidsetValueAtTime(float value, double startTime)
voidsetValueCurveAtTime(Float32Array values, double startTime, double duration)
Referenced by
AudioBufferSourceNodeplaybackRate
DelayNodedelayTime
DynamicsCompressorNodethreshold
GainNodegain