Why Does Mac Not Have a Volume Mixer Like Windows?
The lack of a native volume mixer becomes obvious when running a video call with background music. Lowering the master volume reduces both the call and the music equally. Users must open each application individually and adjust its internal volume settings, assuming the application even provides one.
LitLink Pro fills this gap by providing a centralized volume mixer panel that lists every running application with its own volume slider. The experience mirrors the Windows Volume Mixer that Mac users have been requesting from Apple for nearly two decades.
What Are the Best Volume Mixer Apps for Mac?
Background Music works for users who only need to lower Spotify while keeping Discord at full volume. Its virtual audio device approach means all system audio routes through Background Music first, which can conflict with other audio tools. Users running soundboard applications on Mac often find that Background Music's virtual device competes with the soundboard's own routing.
LitLink Pro and SoundSource both handle per-app volume without virtual devices, using different system-level interception methods. LitLink Pro's Process Tap API is built into macOS, while SoundSource's ACE driver is a third-party extension that requires explicit approval in System Settings.
How Does a Mac Volume Mixer Work Under the Hood?
The Process Tap API, introduced in macOS 14 Sonoma, gives developers official access to individual process audio streams. Before this API, per-app volume control required either kernel extensions (deprecated by Apple for security), custom audio drivers (like SoundSource's ACE), or the virtual device workaround. Process Tap represents Apple's acknowledgment that developers need process-level audio access.
The technical approach matters because it affects reliability across macOS updates. LitLink Pro's reliance on a first-party API means Apple maintains backward compatibility. Third-party drivers must be updated whenever Apple changes the audio stack, and users who explored the per-app volume control options on Mac know that driver-based tools occasionally break after system updates.
Can You Get a Free Volume Mixer for Mac?
Background Music's GitHub repository shows intermittent maintenance with gaps between releases. The virtual audio device it creates works on both Intel and Apple silicon Macs, but users report occasional audio glitches during device switching. The project has no commercial backing, so bug fixes and macOS compatibility updates depend on volunteer contributors.
LitLink (the free tier, not Pro) provides a virtual audio cable for system-wide routing but does not include per-app volume controls. Users who start with the free virtual audio cable for basic audio routing can upgrade to Pro for the full volume mixer experience when they need individual app control.
How Do You Set Up a Volume Mixer on Mac?
LitLink Pro's advantage is zero system configuration. The Process Tap API does not require changing the default audio output device or installing additional drivers. Users keep their preferred speakers or headphones as the system default while LitLink Pro manages per-app volumes transparently in the background.
Streamers and content creators who already manage audio routing through OBS appreciate that LitLink Pro's volume mixer does not interfere with existing audio device configurations. The same volume mixer panel also displays output routing options, so users who need per-app audio routing alongside volume control handle both tasks in one interface.
Marcel Iseli is an indie developer, DJ, and music producer with over 20 years behind the decks and in the studio. Rooted in hip hop culture, he collects drum machines, samplers, and vintage audio gear. LitPads grew out of that obsession: decades of triggering samples on hardware led him to build the software equivalent he always wanted.