The AnalyserNode
constructor of the Web Audio API creates a new AnalyserNode
object instance.
Syntax
var analyserNode = new AnalyserNode(context, ?options);
Parameters
Inherits parameters from the AudioNodeOptions
dictionary.
- context
- A reference to an
AudioContext
orOfflineAudioContext
. - options Optional
-
fftSize
: The desired initial size of the FFT for frequency-domain analysis.
The default is2048
.maxDecibels
: The desired initial maximum power in dB for FFT analysis.
The default is-30
.minDecibels
: The desired initial minimum power in dB for FFT analysis.
The default is-100
.smoothingTimeConstant
: The desired initial smoothing constant for the FFT analysis. The default is0.8
.
Return value
A new AnalyserNode
object instance.
Specifications
Specification | Status | Comment |
---|---|---|
Web Audio API The definition of 'AnalyserNode() constructor' in that specification. |
Working Draft | Initial definition. |
Browser Compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
AnalyserNode() constructor | Chrome Full support 55 | Edge Full support ≤79 | Firefox Full support 53 | IE No support No | Opera Full support 42 | Safari Full support 6 | WebView Android Full support 55 | Chrome Android Full support 55 | Firefox Android Full support 53 | Opera Android Full support 42 | Safari iOS Full support 6 | Samsung Internet Android Full support 6.0 |
Legend
- Full support
- Full support
- No support
- No support
See also
BaseAudioContext.createAnalyser()
, the equivalent factory method