{{ APIRef("Web Audio API") }}
The ConvolverNode
interface is an {{domxref("AudioNode")}} that performs a Linear Convolution on a given {{domxref("AudioBuffer")}}, often used to achieve a reverb effect. A ConvolverNode
always has exactly one input and one output.
Note: For more information on the theory behind Linear Convolution, see the W3C Web Audio API spec section, Linear Effects Using Convolution, or read the The Wikipedia Linear Convolution Article.
Number of inputs | 1 |
---|---|
Number of outputs | 1 |
Channel count mode | "clamped-max" |
Channel count | 2 |
Channel interpretation | "speakers" |
Properties
Inherits properties from its parent, {{domxref("AudioNode")}}.
- {{domxref("ConvolverNode.buffer")}}
- A mono, stereo, or 4-channel {{domxref("AudioBuffer")}} containing the (possibly multichannel) impulse response used by the
ConvolverNode
to create the reverb effect. - {{domxref("ConvolverNode.normalize")}}
- A boolean that controls whether the impulse response from the buffer will be scaled by an equal-power normalization when the
buffer
attribute is set, or not.
Methods
No specific method; inherits methods from its parent, {{domxref("AudioNode")}}.
Example
{{page("/en-US/docs/Web/API/AudioContext.createConvolver","Example")}}
Specifications
Specification | Status | Comment |
---|---|---|
{{SpecName('Web Audio API', '#the-convolvernode-interface', 'ConvolverNode')}} | {{Spec2('Web Audio API')}} |
Browser compatibility
{{CompatibilityTable}}
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | {{CompatChrome(10.0)}}{{property_prefix("webkit")}} | {{CompatGeckoDesktop(25.0)}} | {{CompatNo}} | 15.0{{property_prefix("webkit")}} 22 (unprefixed) |
6.0{{property_prefix("webkit")}} |
Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|
Basic support | {{CompatUnknown}} | 26.0 | 1.2 | {{CompatUnknown}} | {{CompatUnknown}} | {{CompatUnknown}} | 33.0 |