ConvolverNode

The ConvolverNode interface represents a linear convolution effect, that can be applied to a signal given an impulse response. This is the easiest way to achieve echo or reverb effects.

AudioNode properties

Number of inputs	1
Number of outputs	1
Channel count	2
Channel count mode	clamped-max
Channel interpretation	speakers

info

Convolver is a node with tail-time, which means, that it continues to output non-silent audio with zero input for the length of the buffer.

Constructor

constructor(context: BaseAudioContext, options?: ConvolverOptions)

ConvolverOptions

Inherits all properties from AudioNodeOptions

Parameter	Type	Default
buffer Optional	number		Initial value for buffer.
normalize Optional	boolean	true	Initial value for normalize.

Or by using BaseAudioContext factory method: BaseAudioContext.createConvolver()

Properties

It inherits all properties from AudioNode.

Name	Type	Description
buffer	AudioBuffer	Associated AudioBuffer.
normalize	boolean	Whether the impulse response from the buffer will be scaled by an equal-power normalization when the buffer attribute is set.

caution

Linear convolution is a heavy computational process, so if your audio has some weird artefacts that should not be there, try to decrease the duration of impulse response buffer.