MediaRecorder: start event

The start event is fired when MediaRecorder.start() is called. At this point, the data starts being gathered into a Blob.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener('start', event => { });

onstart = event => { };

Event type

A generic Event.

Example

...

  record.onclick = function() {
    mediaRecorder.start();
    console.log("recorder started");
  }

  mediaRecorder.onstart = function() {
    // do something in response to
    // recording being started
  }

...

Properties

None.

Specifications

Specification
MediaStream Recording # dom-mediarecorder-onstart

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`start_event`	49	79	25	No	36	14	49	49	25	36	14	5.0

Name	Web APIs
Version
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Last Updated	2022-04-27T09:33:08Z