The minValue read-only property of the AudioParam interface represents the minimum possible value for the parameter's nominal (effective) range.


var minVal = audioParam.minValue;


A floating-point Number indicating the minimum value permitted for the parameter's nominal range.

The default value of minValue is the minimum negative single-precision floating-point value (-340,282,346,638,528,859,811,704,183,484,516,925,440).


const audioCtx = new AudioContext();
const gainNode = audioCtx.createGain();
console.log(gainNode.gain.minValue); // -3.4028234663852886e38


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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
minValueChrome Full support 52Edge Full support ≤18Firefox Full support 53IE No support NoOpera Full support 39Safari Full support 6WebView Android Full support 52Chrome Android Full support 52Firefox Android Full support 53Opera Android Full support 41Safari iOS Full support YesSamsung Internet Android Full support 6.0


Full support  
Full support
No support  
No support

See also