MacMix Studio

It centralizes system volume, application-specific volume, output device switching, and microphone management in a compact panel, allowing adjustments without opening system settings. The software can individually lower the volume of currently playing applications and enable up to 200% volume boost as needed, automatically remembering the volume of each application and restoring it for the next playback.

For external displays supporting DDC/CI, speaker volume can be directly controlled, with the slider set to zero for mute. It also supports switching between AirPods, speakers, and AirPlay receivers, and adjusting microphone input volume. Audio is processed locally on the Mac in real-time; it does not record, save, or upload, and does not require account registration. The core functionality is open-source under the MIT license. The Studio extension in the distribution provides application equalizers, multi-device output, scene presets, microphone lock, and theme customization. MacMix Studio The software requires macOS Sonoma 14.4 or later. First-time use of the application mixer requires granting system audio recording permissions; the application only appears in the mix list when the system reports that it is playing audio.