[Updated2] Mumble: low-latency group voice chat

edited March 28 in Music & Choir

Mumble is a low-latency high quality voice chat that allows multiple simultaneous conversation rooms and includes text chat. To use it you need a desktop client or a mumble client for your Android or iOS device, available through their app stores.

Download mumble for Mac or Windows: https://www.mumble.com/mumble-download.php To install mumble on Linux, use your package manager: apt, dnf or yum, or Software Center.

The mumble chat server to connect to is http://next.buf.org/. You create your own user name. You might get a message that says "invalid user name": this is a silly glitch. Just try reconnecting with that same user name and you'll prolly connect.

  • Your username name must not have spaces, it can have characters [A-Za-z0-9_-]
  • The server password is LetsChatAndSing

Here is a video discussing how to use mumble: https://www.youtube.com/watch?v=iG5O0lIjCPo

Steps to take:

  • Install mumble software
  • Connect to server next.buf.org
  • Choose a username
  • It will prompt you for a server password: LetsChatAndSing
  • You may now text chat and use your headset
  • You can configure your mumble software for push-to-talk or voice-activation.

Video discussing voice activation: https://www.youtube.com/watch?v=pEJNRyOKoZg


  • I will be available on mumble at 11:45am today.

  • There are iOS and Android apps available as well.

  • I tried connecting several times with Mark Allyn and it still will not let me in. I have another Zoom meeting til about 4 PM. i will be back around then.

  • OK, I will see if logs show me anything. I'll check later today after I finish some chores. I'm AFK now.

  • No hurry. I am now about to start a long Zoom.

  • I placed password and username guidlines into top post.

  • I downloaded Mumble on my Windows desktop computer. Immediately saw that it looks complex to setup for non-techie users, and I guess that includes me. This is a drawback to having it be practical for choir practices.

    I tried searching for it on the Google Play store for my Android tablet. It did not come up in a search. Something related to it, with a different name, was the only possible app download, I think it was "Pumble Mumble", identified as a Mumble client.


  • edited March 28

    Plumble is the correct app for Android. Mumblefy is the iOS app.


  • @AndrewSch Installation is no harder than any other windows software, I wouldn't expect you to be challenged by that. The choice between push-to-talk or voice-activated shouldn't be hard to understand. Tuning your voice activation levels takes some concentration. If you can get it installed and add the next.buf.org server, you've at least got most of the job done. Were you able to get it installed?

  • I'll add a link to this video on configuring voice activation to the top post:


  • Let me know if the instructions in top post can be improved

  • Regarding Mumble, I wasn't primarily saying the setup and options looked too complex for me to know how to effectively set up. I was saying these look like they'd be challenging or near impossible for a lot of potential users.

    Are we still thinking Mumble is a good option for choir practice ? If so we still need to test it.

  • Andrew, who are you going to invite and when? I don't think you need my help, but us know if you do.

  • Andrew, I would suggest trying mumble with two others as a start. Then, if that goes well add more people the next time. Either way report back how the session goes.

    • I just downloaded Pumble on my tablet (my desktop computer has no camera, and my laptop has a crapy one). As I said setting it up is not at all simple for people who are not techies. I'm stumpted. I was able to:
    • Connect to server next.buf.org
    • Choose a username
    • It will prompt you for a server password: LetsChatAndSing
    • Now what? (and how do I get rid of bullets and bold type in this message ?
    • I have no idea how to configure things, though I did look at the how to enable voice activation video a couple of days ago.
    • There's far more settings and choices to make than just what's covered in that video. Again Mumble seems to me too complex to be practical for most potential BUF users.'
    • And these pesky bullets !

  • Andrew, both these things are a matter of practice. Please trust your inner sleuth and keep experimenting; impatience doesn't become you.

    • This is a bullet

    This is the next paragraph after hitting enter twice.

    So, for mumble, I agree it is more difficult, but it's up to us to understand more than our users. What Skype and Zoom do to input are behaviors like 'adaptive gain' which can misbehave on peoples microphones and they don't know why they end up muted or consistently getting quieter and quieter. The control that mumble offers is an advantage over the 'easy button' that other people pay for.

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