It has stopped working a few times before, and while I haven't exactly identified how to mitigate the issue, I have noticed that something of the following may have helped to get it working again: When originally composing this answer, I couldn't get it to work even though I hadn't modified the setup that was working the day before. HOWEVER, while the above will work at times, I have noticed that the behaviour of Soundflower can be erratic from time to time. Tip: You can also change the Input/Output settings by holding ⌥ ( alt/opt) and left-clicking the Volume icon in the OS X menu bar. Now that you have created a Multi-Output Device, go back to System Preferences > Sound and select it on the Output tab as in Step 2. Now you can hear audio as usual while routing the Output into your Input via Soundflower.

Mark to use both your Built-in Output and Soundflower (2ch). Press the + button in the bottom left corner, and press Create Multi-Output Device. It's located in your Applications folder under /Applications/Utilities.

your Built-in speakers or attached headphones), you need to open the native OS X application Audio Midi Setup. If you want to hear the audio while it's playing on your normal Output device (e.g. You are now routing your Output to Input, and will be able to record the audio playing to an application like QuickTime, Evernote or Just Play Record. If you're okay with not having to hear the output yourself, you can now go to the Output tab and select Soundflower (2ch). If you want to route the audio and hear it yourself at the same time, skip to Step 3. Go to the Input tab and select Soundflower (2ch) as the input device. Step 1Īfter installation, a new device will be available in System Preferences > Sound.

It does this by routing your audio output as an audio input to the system. Soundflower is a virtual audio device for OS X that can pass audio from applications to other applications. Again, it is a paid product with a trial mode. It solves some issues with Soundflower, like reenabling volume up/down via the Mac media keys. Rogue Amoeba, the previous maintainers of the open source Soundflower project, has a new (paid) application called Loopback which seems to be easier and more dependable to work with than Soundflower.

Virtual audio cable macos