Audacity Forum

I did as suggested. Sound is recognized within the system preferences>sound box(see photo) but not in Audacity. The "USB Codec" is still greyed out.

USB PnP Audio Device. That's a red flag. It's one of those $40 cassette-to-USB things, right? Go to Apple menu > System Preferences > Sound > Input. See if the device is shown ...

... 2667 MHz DDR4. I just got Audacity 2.4.2 installed and when I play the cassette tape the audio is not recognized by the software. It is only giving ... files. The cassette player I bought is designed to do this as it has a USB cable. Also, the iMac sees the USB input under, About this Mac>System ...

Although the greyed out controls in “audio midi setup > USB Audio CODEC 2 (Input)" looks peculiar, I've just checked on my Mac and that is the same here. Click on the speaker icon in the menu bar and select "Sound Preferences". Then click on the "Input" ...

Here's the screenshot of the USB Codec indicator "greyed out" on Audacity.

Update: I tried the other USB jack on the laptop and it made no difference. I noticed a couple of oddities. In the “audio midi setup”, when I hit Codec 1 the volume meter bars are darkened at Max input but nothing is making it to Audacity. ...

... on one end and two RCA jacks IN on the other. Mini plug goes into the cassette "earphone" jack; a dual RCA cord goes into the plug's two in jacks. ... (into my earphones) is plenty sufficient. I'll try using another USB jack on the Macbook later. And I don't have another Mac machine to use. ...

... on both into the Behringer. What was it? So the audio is making it into the Behringer but is not making it into the Mac. Can you try a different USB socket? Do you have another computer that you could try? Just backtracking a couple of steps - Are you getting a reasonable listening volume in ...

First, I solved the one-channel problem. I’m now hearing audio on both into the Behringer.
Under “midi setup” I see USB Codec 1 and USB Codec 2. I selected each and neither produced audio into Audacity.
So the audio is making it into the Behringer but is not making it into the Mac.

OK, so it's either that the cassette is only recorded on the left, or it's the cassette player that's only playing ... In Finder, open: "Applications > Utilities > Audio MIDI Setup" You should see the "USB Audio CODEC" listed there. Select it. With the cassette connected to the UCA-202 ...