Murmel

Murmel is a native Mumble voice chat client for GNOME, written in Go with GTK 4 and Libadwaita. It provides encrypted voice communication over UDP with automatic TCP fallback and the Opus codec, along with voice activity detection, a live voice meter, noise suppression, and echo cancellation. The interface follows the GNOME design language and adapts to narrow windows as well as light, dark, or system-wide color schemes. Users can select audio devices from the status bar, adjust voice quality and audio settings, and save connections with passwords securely stored in the desktop keyring.

Beyond voice chat, Murmel includes text channels, private conversations, formatting, emoji, images, unread markers, avatars, and mumble:// link support. It also offers channel administration, server moderation tools, desktop notifications, configurable event sounds, and client certificate management. The application is available as a Flatpak and from Fedora COPR, with English and German translations. Murmel is licensed under GPL-3.0-or-later and is an independent project, not affiliated with the official Mumble project.