: Adjust the volume levels of individual apps independently, or redirect audio from a specific app (like Spotify) to a different output device than the rest of the system.

SoundSource 3.1.1 is a legacy version of the macOS audio control utility developed by Rogue Amoeba . Released in late 2018, this specific update was primarily a maintenance release focused on compatibility with and improving resampled audio quality. Core Functionality

: Included a global hotkey to bring the interface to the foreground and the ability to "pin" the window so it floats above other apps. Current Status

: Quickly toggle between different output, input, and sound effect devices.

Version 3.1.1 was part of the "3.x" generation, which introduced several refinements over older versions:

: Added a "System" sub-menu for quick access to the standard macOS Sound preference pane and the Audio MIDI Setup app.