The MediaTrackSupportedConstraints
dictionary's noiseSuppression
property is a read-only Boolean value which is present (and set to true
) in the object returned by MediaDevices.getSupportedConstraints()
if and only if the user agent supports the noiseSuppression
constraint. If the constraint isn't supported, it's not included in the list, so this value will never be false
.
You can access the supported constraints dictionary by calling navigator.mediaDevices.getSupportedConstraints()
.
The noiseSuppression
constraint indicates whether or not the browser offers the ability to automatically control the gain (volume) on media tracks; this obviously is contingent on whether or not the individual device supports automatic gain control as well.
Syntax
noiseSuppressionSupported = supportedConstraintsDictionary.noiseSuppression;
Value
This property is present in the dictionary (and its value is always true
) if the user agent supports the noiseSuppression
constraint (and therefore supports noise suppression on audio tracks). If the property isn't present, this property is missing from the supported constraints dictionary, and you'll get undefined
if you try to look at its value.
Example
This example simply displays whether or not your browser supports the noiseSuppression
constraint.
HTML content
<div id="result"> </div>
CSS content
#result { font: 14px "Arial", sans-serif; }
JavaScript content
let result = document.getElementById("result"); if (navigator.mediaDevices.getSupportedConstraints().noiseSuppression) { result.innerHTML = "Supported!"; } else { result.innerHTML = "Not supported!"; }
Result
Specifications
Specification | Status | Comment |
---|---|---|
Media Capture and Streams The definition of 'noiseSuppression' in that specification. |
Candidate Recommendation | Initial specification. |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
noiseSuppression | Chrome Full support 69 | Edge Full support ≤79 | Firefox
Full support
55
| IE ? | Opera Full support Yes | Safari ? | WebView Android Full support 69 | Chrome Android Full support 69 | Firefox Android
Full support
55
| Opera Android Full support Yes | Safari iOS ? | Samsung Internet Android Full support 10.0 |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
- Requires a vendor prefix or different name for use.
- Requires a vendor prefix or different name for use.