AnalyserNode.AnalyserNode()

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 or OfflineAudioContext.
options Optional
 
  • fftSize: The desired initial size of the FFT for frequency-domain analysis. 
    The default is 2048.
  • 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 is 0.8.

Return value

A new AnalyserNode object instance.

Specifications

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

Browser Compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
AnalyserNode() constructorChrome Full support 55Edge ? Firefox Full support 53IE No support NoOpera Full support 42Safari ? WebView Android Full support 55Chrome Android Full support 55Firefox Android Full support 53Opera Android Full support 42Safari iOS ? Samsung Internet Android Full support 6.0

Legend

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See also

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