If you are on 10.10 or below (Yosemite, Mavericks, etc.) you can still follow this tutorial, but don't install sound flower 2.0b2. Have any questions/problems? Let me know down in the comments so. Overview Soundflower is a OS X system extension that allows applications to pass audio to other applications. Soundflower is easy to use, it simply presents itself as an audio device, allowing any audio application to send and receive audio with no other support needed. Soundflower is free, open-source, and runs on Mac Intel and PPC computers. Same issue here although in Yosemite with AU Lab 2.3 and Soundflower 1.6.7. I run audio to an aggregate device consisting of the built-in output optical to a receiver and a USB audio DAC to a second subwoofer. Using just soundflower is clean but going through AU Lab gives me all kinds of crackling. Then hit the button with the gear icon bottom left and select 'use this device for sound output' (you should still be hearing your iTunes output - it is now going to both Soundflower and the built-in speakers) Then In Quicktime: create a new audio recording in the popup menu next to record button select 'Soundflower (2ch)' as the input.
Welcome to our Soundflower installation guide. Installing Soundflower on modern macOS versions can be a little complicated as kernel extensions need now to be given permissions before being loaded for the first time. So the Soundflower installer will error out on macOS High Sierra and Mojave. But this is easy to fix.
macOS 10.13 High Sierra and macOS 10.14 Mojave Soundflower Install
Download the installer: soundflower_2.0b2.zip.
Run it and perform the install
The installer will tell you that it failed. This is completely normal.
Open the System Preferences and go to the “Security & Privacy” settings.
Click on the “Allow” button next to “MATT INGALS”.(This has to be a physical hardware click. Remote desktop connections or even local software tools like “Better Touch Tool” won’t work!)
Run the installer again. This time it will run through without any problems.
Click 'Open Security Preferences'
Click on the Allow button and run the installer again.
IMPORTANT: If you can’t record from Soundflower under Mojave (the device is there but only silence is being recorded) make sure that you have given microphone access permissions to your recording app! macOS treats Soundflower like a microphone in this regard. Go to system preferences -> Privacy & Security -> Privacy -> Microphone -> [check mark next to your recording app]
See our blog post about this issue: https://www.fluxforge.com/blog/recording-problems-on-mojave/
Soundflower Mac Yosemite High Sierra
macOS 10.10 - 10.12 Soundflower Install
Because we’re getting this asked a lot: Here’s how you get Soundflower to work with macOS 10.12 Sierra and OS X 10.10 and 10.11…
As you know, since 10.10, OS X requires kernel extensions to be signed. Sadly the officially available version of Soundflower isn’t signed because it’s an open source project and - as far as we know - no one has volunteered to do the work and pay the $99 fee to obtain a signing certificate.
Soundflower Mac Yosemite 10.10
That’s why we have built a signed version of Soundflower which will work on OS X 10.10, 10.11 and the new macOS 10.12 Sierra.
Soundflower Mac Yosemite Installer
Here is the direct download link: soundflower_2.0b2.zip.
Download the zip and run the contained installer. Even though not required you probably should restart your Mac to make sure everything got installed properly.
Soundflower Free Download
Enjoy!
Soundflower Mac Uninstall
Please note that we can’t offer direct support for Soundflower. We just built a version you can install on macOS 10.11 and 10.12. If you encounter any problems please contact Soundflower’s developer! You can find their project page here: https://github.com/Soundflower-Original
Sound Flower Mac El Capitan
Shameless self promotion: Have you tried Vector yet? Vector is an audio editor for OS X that is designed to fit into the space between simple audio apps and full blown studio production tools. (Kinda like Cool Edit Pro for the Mac - if you are that old school).