Mute All Participants - Flutter

If you are the host or moderator of a video conference, you may want to mute all the participants at once. This can be useful in various scenarios, such as when you want to deliver a presentation or when there is background noise that is causing distractions.

• To achieve this, you have to iterate over the list of participants from the Room object and call the disableMic() method on each Participant object.
• room.participants holds the remote participants only, including any AI agents, so skip the agents. disableMic() is not supported on an AI agent.
• disableMic() returns a Future that throws a VideoSDKError if the request is refused. Await each call inside try/catch, so one failure does not stop the others.

import 'dart:developer';
import 'package:flutter/material.dart';
import 'package:videosdk/videosdk.dart';

class RoomScreen extends StatefulWidget {
  ...
}

class _RoomScreenState extends State<RoomScreen> {
  late Room _room;

  @override
  void initState() {
    ...
  }

  Future<void> muteAllParticipants() async {
    // Copy the list: participants can join or leave while the calls run
    for (final participant in _room.participants.values.toList()) {
      // Skip AI agents
      if (participant.isAgent()) continue;
      try {
        await participant.disableMic();
      } on VideoSDKError catch (e) {
        log("Could not mute ${participant.displayName}: ${e.code} ${e.name}");
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children:[
        ElevatedButton(
          child: Text("Mute all participants"),
          onPressed: muteAllParticipants,
        ),
      ]
    );
  }
}

note

Participant who will be muting other participants should have permission allow_mod passed in the token. To know more about permissions visit here.

API Reference

The API references for all the methods and events utilised in this guide are provided below.

• disableMic()
• participants