Audacity Forum

So weird. No kidding! The result of the experiment suggests that Rekordbox is doing something strange with its audio output that prevents it being recorded. I have never heard of such a thing and I can't imagine how they've done that. Let's make sure you can actually record two audio streams at onc...

OK, just to make sure I understand. Rekordbox is a program. It allows you to mix the music you have on your computer. The thing that is connected via USB is a controller - it is not Rekordbox, but can control Reckordbox. But the thing connected via USB has audio outputs (on RCAs) that you can connec...

When playing audio with the rekordbox, you can hear it through your computer speakers, right? What exactly does the rekordbox do? What they say on the website is not very helpful to me. Does it play and mix audio from external sources (CD players, USB sticks, etc) or does it control the mixing of au...

I am using the Super USB Cassette Capture with a usb cable going into my MacBook Pro external port usb adaptor. I'll bet that device shows up in Sound Preferences as "PnP USB Audio Device" or similar. "PnP" is the key. Those devices are notorious for failing to maintain a USB audio connection on Ma...

This page on the Audacity wiki has instructions for setting up Soundflower in order to record system audio in Audacity.

You may also want to check out Blackhole, which is known to work with macOS 10.15. They have instructions on their Github page for using Blackhole with Audacity.

-- Bill

Are you talking about the Amplify effect? The "Amplification (dB)" field will be greyed out if the peak amplitude of the selection is already 0dB.
-- Bill

Thanks for catching that. Those are "smart" quotes around the word "Devices". Fixed now in the alpha manual.
-- Bill

A possible enhancement to the software would have non-adjustable input levels cause the input level control to grey out. Audacity is a slave to the computer it is running on. Since macOS shows an enabled input level control, so does Audacity. Some USB devices (mostly microphones, in my experience) ...

What recording devices show up in Audacity's Device Toolbar?

-- Bill

What is the make and model of the cassette deck? After connecting the cassette deck to your Mac, go to Apple menu > System Preferences > Sound > Input. Do you see the cassette deck listed there? "USB" should be part of the device name. Click on it then start a cassette playing. Does the sound meter ...