The removetrack event is fired when a track is removed from an AudioTrackList.

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

addEventListener("removetrack", (event) => { })

onremovetrack = (event) => { }

A TrackEvent. Inherits from Event.

TrackEvent is based on Event, so properties of Event are also available on TrackEvent objects.

track Read only

The DOM track object the event is in reference to. If not null, this is always an object of one of the media track types: AudioTrack, VideoTrack, or TextTrack).

The removetrack event is called whenever a track is removed from the media element whose audio tracks are represented by the AudioTrackList object.

This event is not cancelable and does not bubble.

You can use this event to react to a new audio track becoming unavailable. You may want to update your UI elements to disallow for user selection of the removed audio track, for example.

Using addEventListener():

const videoElement = document.querySelector("video");

videoElement.audioTracks.addEventListener("removetrack", (event) => {
  console.log(`Audio track: ${event.track.label} removed`);
});

Using the onremovetrack event handler property:

const videoElement = document.querySelector("video");

videoElement.audioTracks.onremovetrack = (event) => {
  console.log(`Audio track: ${event.track.label} removed`);
};

• Related events: addtrack, change
• This event on VideoTrackList targets: removetrack
• This event on MediaStream targets: removetrack
• Media Capture and Streams API
• WebRTC