System Audio Device Adjustments
At the top of SoundSource's main window, you'll find the controls for System audio devices. Here, you can adjust settings for the default devices the system uses for audio output, audio input, and sound effects.
The System Devices Area
Output Device
By default, all audio on your Mac will play through the system's selected output device. Using these controls in SoundSource, you can switch the specific device being used for output, and adjust the output volume, balance, and sample rate.
Output Device Controls
You can also apply audio effects to all audio played through the output device. These effects include the built-in Magic Boost and 10-band Lagutin equalizer, as well as third-party Audio Unit effects. For more details, see the Audio Effects page.
Input Device
The system's selected default input device is used to pull in audio in to your Mac, and will generally be something like a microphone or mixer. Using these controls in SoundSource, you can switch the specific device being used for input, and adjust the device's input level and sample rate.
Input Device Controls
Sound Effects Device
Sound effects are a special type of audio played by applications on the Mac, and include things like the ding of a new email arriving or the paper crinkle of emptying the Trash. You can opt to play sound effects through a secondary audio device, so they don't blast over other content you may be enjoying, such as music or a movie.
Sound Effects Device Controls
With these controls in SoundSource, you can switch the specific device being used for sound effects, and adjust their volume level.