KMix is KDE’s sound channel mixer and volume-control application. It provides both quick access to commonly used volume controls and a more complete mixer interface for the channels made available by the active sound system.
The application can nominate a master channel and lets you determine how volume adjustments behave. It integrates with KDE’s desktop environment but remains useful when several mixer channels need to be controlled separately rather than relying solely on a single system-wide volume slider.
This is free and open source software.
Key Features
- Select and control the master channel.
- Adjust the available mixer channels individually.
- Mute and unmute supported channels.
- Control volume from the system tray.
- Adjust volume with the mouse wheel and keyboard shortcuts.
- Configure the size of each volume adjustment step.
- Enable optional volume feedback.
- Allow volume levels above the normal maximum where supported.
- Open KDE’s audio configuration from the mixer.
- Provides D-Bus interfaces for controlling and querying mixer values.
Website: invent.kde.org/multimedia/kmix
Support:
Developer: Christian Esken
License: GNU General Public License v2.0

KMix is written in C++. Learn C++ with our recommended free books and free tutorials.
Related Software
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| QasTools | Collection of Qt-based mixer and setup tools |
| pavucontrol-qt | Pulseaudio mixer in Qt |
| Mixer | No-frills volume mixer |
| wmsmixer | Hack to wmmixer |
| wmmixer | Mixer application designed for WindowMaker |
| Retrovol | Retro-looking volume setting program |
| hyprmixer | Volume mixer and media controller |
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