Mumble – high quality voice chat software

Last Updated on July 8, 2023

Mumble is an open source voice chat application for groups. While it can be used for any kind of activity, it is primarily intended for gaming. It can be compared to programs like Ventrilo or TeamSpeak.

Mumble uses a client–server architecture which allows users to talk to each other via the same server.

Mumble only supports its own protocol.

Features include:

  • Overlay to show status information within your rendered applications. The overlay provides an in-game heads-up of who is listening and talking.
  • Positional audio – hear the players from where they are located.
  • Low-latency – ideal for talking and gaming. It uses OPUS, CELT and Speex, not just the voice compression technology, but also the voice pre-processing to remove noise and improve clarity.
  • Supports noise suppression to filter out distractions in your background and keep attention on your voice instead.
  • Automatic Level Equalization.
  • Uses encryption for both control messages as well as voice data. Mumble’s control channel is encrypted using TLS-negotiable cipher suites and Mumble’s voice channel is encrypted using OCB-AES128.
  • Public/private-key authentication by default
  • Recognize friends across servers.
  • Uses certificates for authentication.
  • Wizards to guide you through setup, like configuring your microphone.
  • Extend through Ice middleware:
    • Web interfaces – free choice of several community free software projects.
    • Channel viewers – even without direct Ice access, if the hoster provides the CVP, easily set up your channel viewer of choice.
    • Authenticators – to allow users to authenticate against an existing user database.
    • Custom chat commands and context (right click) menu entries.
  • Supports multiple independent virtual servers per process.
  • Uses 10-40 kbit/s outgoing, and the same incoming for each user.
  • Cross platform – supports Windows, OS X, Linux, and BSD. There is also an official iOS client.

Support: FAQ, GitHub
Developer: Mumble VOIP Team
License: New BSD license


Mumble is written in C++. Learn C++ with our recommended free books and free tutorials.

Return to VoIP | Return to Gaming Voice Chat

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