If the mixer has audio line-out, and your MacBookPro has an audio line-in you can record the output of the mixer in Garageband. Your mixer has two outputs - 1) 2x RCA and 2) 2x 1/4' TRS. You will need a cable with one pair of connectors matching the mixer output you want to use, and on the other end a single 3/8' (aka 2.5mm) male stereo plug to connect to your MacBookPro.
A reliable application that helps you adjust the volume while listening to your favorite tracks, radio songs or watching TV with minimum effort AutoMixer is a lightweight software utility built.
- Control the audio on your Mac apps from the menu bar. 8 Alternatives to Background Music. System-wide volume booster and equalizer for mac. Literally my first install on every new Mac. Lots of customization/presets, it even calibrates.
- It's called Volume Mixer. This simple app supercharges your volume control on a Mac by allowing you to easily lower or raise an app's volume on an app-by-app basis, thanks to an individual slider.
In GarageBand you will record from the audio input. There is no 'connection' between the mixer and GarageBand per se.
Note: You didn't say what model MacBookPro you have. In the current lineup, only the 15' MacBookPro still has audio line-in. Check yours to make sure it has an audio-in port.
Feb 20, 2013 8:37 PM
Sound Control 2.5.0 is a FREE upgrade for all owners of Sound Control.
Volume Mixer Mac Reddit
Version 2.5.0
Mac Volume Control
- Devices menu now shows the Master Volume.
- Input devices now properly show and update the muted state.
- Toggle mute for default input device now shows the HUD to indicate status change.
- Add hotkeys for controlling the default input device’s gain and mute.
- Input devices now show gain dB value properly.
- Changing the gain of an input device no longer beeps.
- Added Priority devices for Input devices.
- Added HotKeys for changing the default input device.
- Volume feedback beeps now play on the appropriate device.
- Sound Control no longer interferes with macOS automatic device selection if priority devices are not enabled.
- Reduced CPU use.
- Added option to show and control apps that have been explicitly added to the listing.
- Fixed audio distortion after switching sample rates on bluetooth devices.
- Addressed application hang when switching to a bluetooth device or a built-in device on T2 Macs.
- Master volume displayed in the touch bar now updates properly when the default output device is changed.
- Added support for AirPlay!
- Added AppleScript support for setting mute, volume and balance.
- Added support for Zoom Thunderbolt audio devices.
- Sound Control volume change overlay more closely matches the system.
- Fixed a crash that could happen when muting AirPods Pro.
- Menu bar icon no longer shows disabled if STZ Audio Process plugin isn’t installed.
- Last version to support macOS 10.11 (El Capitan), 10.12 (Sierra), 10.13 (High Sierra. The next update to Sound Control will require macOS 10.14 (Mojave).