Focusrite Volume Control

A macOS menu bar app that lets you control your Focusrite Scarlett Solo volume with your keyboard's media keys and custom shortcuts.

  

Install

Homebrew

brew tap enum-solutions-inc/focusrite-volume-control
brew install --cask focusrite-volume-control

Manual

Download the latest DMG from Releases and drag to Applications.

Requirements

• macOS 15.0 (Sequoia) or later
• Focusrite Control 2 installed
• Accessibility permission (prompted on first launch)

Features

• Media key interception — volume up/down/mute keys control your Focusrite instead of built-in speakers
• Custom HUD — floating volume overlay showing actual dB level
• Perceptual volume curve — 50% slider = -16 dB, matching how your ears perceive loudness
• Custom hotkeys — assign any keyboard shortcut to volume, mute, and direct monitor
• Auto-detect — activates only when a Focusrite Scarlett is the default output device
• Direct monitor toggle — control direct monitoring without opening Focusrite Control 2

How it works

The app drives Focusrite Control 2 via UI automation (AppleScript + Accessibility API). It intercepts system media keys through a CGEventTap and routes them to FC2's sliders instead of macOS's built-in volume control.

Known issues

• Accessibility permission stuck: If the app stops responding to media keys after an update or reinstall, macOS may have cached a stale accessibility grant. Reset it with:

  tccutil reset Accessibility solutions.enum.FocusriteVolumeControl

  Then relaunch the app and re-grant the permission when prompted.

Build from source

xcodebuild -scheme "Focusrite Volume Control" -configuration Release \
  CODE_SIGN_IDENTITY=- CODE_SIGNING_REQUIRED=NO build