Set each app's volume independently so your music is quiet while your video call stays loud.
Route audio from different apps to different speakers or headphones at the same time.
Apply a headphone correction profile from the AutoEQ database to fix uneven sound on your headphones.
Requires macOS 15 Sequoia or later, grants audio capture permission on first launch.
FineTune is a free, open-source macOS menu bar app for controlling audio with more precision than the system defaults allow. Where macOS gives you one volume slider for everything, FineTune lets you set the volume of each application independently. You can also boost quiet apps up to four times their normal level, which is useful for calls or videos that are too soft even at full system volume. Audio routing is another core feature. You can send audio from different apps to different speakers or headphones at the same time, rather than having everything go to a single output. If you use multiple audio devices, you can set a priority order so the app knows which one to switch to when you plug something in, and it restores each app's routing and volume settings when a device reconnects. The EQ section offers a 10-band equalizer with 20 built-in presets, support for saving custom presets per app, and integration with the AutoEQ database of headphone correction profiles. AutoEQ contains frequency correction data for thousands of headphone models, so if your headphones have uneven frequency response, you can search for your model and apply a correction. You can also import your own ParametricEQ.txt files. There is also a loudness compensation option that adjusts bass and treble at low volumes to maintain consistent perceived loudness. Device management covers monitoring and adjusting microphone input levels, controlling external monitor speakers over DDC, managing Bluetooth device connections from the menu bar, and an inspector panel for each device that shows technical details like sample rate, transport type, and a software volume override for hardware where the macOS volume keys do not work. The app also supports URL schemes, which lets you control volume, muting, and routing from the command line or macOS Shortcuts. FineTune requires macOS 15 (Sequoia) or later and grants permissions for audio capture on first launch. It is licensed under GPL v3 and can be installed via Homebrew or a direct download.
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