MediaStreamTrack.onunmute - Web APIs 编辑

MediaStreamTrack's onunmute event handler is called when the unmute event is received. Such an event is sent when the track is again able to send data.

When the onunmute event handler is called, the track's muted flag is false.

Syntax

track.onunmute = unmuteHandler;

Value

unmuteHandler is a function which is called when the MediaStreamTrack receives the unmute event. The event handler receives as input a single parameter: an Event whose kind is "unmute".

Example

This example creates an unmute event handler which changes the state of a visual indicator to display the Emoji character representing a "speaker" icon.

myTrack.onunmute = function(evt) {
  playStateIcon.innerHTML = "🔈";
};

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• The unmute event and its type, Event.
• MediaStreamTrack.muted to determine if a track is currently muted
• MediaStreamTrack.onmute, the event handler for the mute event.