The IIRFilterNode() constructor of the Web Audio API creates a new IIRFilterNode object which an AudioNode processor which implements a general infinite impulse response filter.


var iIRFilterNode = new IIRFilterNode(context, options)


Inherits parameters from the AudioNodeOptions dictionary.

A reference to an AudioContext.
options Optional
Options are as follows:
  • feedforward: A sequence of feedforward coefficients.
  • feedback: A sequence of feedback coefficients.

Return value

A new IIRFilterNode object instance.


Specification Status Comment
Web Audio API
The definition of 'IIRFilterNode()' in that specification.
Working Draft Initial definition.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 55.0 53 (53) ? 42 ?
Feature Android Android Webview Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support 55.0 53.0 (53) ? 42 ? 55.0

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 Contributors to this page: teoli, chrisdavidmills, bunnybooboo, jpmedley
 Last updated by: teoli,