Audacity Forum

Have you tried Export Multiple?

-- Bill

A non-free solution is Audio Hijack from Rogue Amoeba.
-- Bill

Other users have reported that Soundflower works with Big Sur.
-- Bill

Connect your turntable to the Macbook. Go to System Preferences > Sound > Input. Select the turntable (it will probably say something like "USB Audio CODEC"). Play a record. Does the input level meter bounce? If not, figure out why. Start Audacity. In the Device Toolbar select "USB Audio CODEC" as t...

Using the Behringer interface will get you away from using Soundflower, which may or may not help. It seems a roundabout way of recording. As I understand it, Rekordbox plays audio files that you have on your computer, and sends the audio to your interface, which has an output that is generally mean...

There's also Blackhole.

-- Bill

Generally, you should turn on all interfaces before starting Audacity. However, this doesn't seem to be your problem. Since you are using Soundflower to record the audio from Rekordbox, the interface has nothing to do with it. Double-check your settings in Soundflower, and when you get it to work, w...

When you look at the waveform do you see silent sections? If so that would indicate dropouts during recording.
-- Bill

So far, so good...except one problem: the playback indicator/bar used to move steadily across the screen regardless of how much I'd zoomed in. Now, when I zoom in, it "ticks" from point to point. This does not affect playback sound...but it means that I have less visual feedback of exactly where th...

Now I just have problems with it cutting during the songs while they are playing. Every few seconds the sound will cut out and then come back. Even when I try to play both tracks at the same time it cuts them off the same way. Any ideas? You're playing back through the controller? What happens if y...