What sort of cassette player are you using?
Does the cassette player have a headphone socket? If so, is there sound coming from there if you plug your headphones in?
Unfortunately these have a terrible reliability reputation.
With the cassette connected to your computer, look in the Windows Sound control panel. Is the device listed in the “Recording” tab? If it is, try playing a cassette - you should see a green meter responding to the sound.
The quick way to open the Windows Sound control panel:
Thanks for the information. Likely won’t get a chance to try it out again until Friday, but will let you know if I have any continuing (or new) issues!!
Took a while going through all the steps you suggested, BUT, finally found the issue. Deep in the computer, the sound was set to “playback through the recorder”, not the speaker … once I changed it to the speaker all is well and I’m converting a cassette as I type!!!
Also, make sure to restart Audacity after plugging in the USB Port. (Or select, Transport>Rescan Audio Devices). Then reselect your USB Cassette Capture device to record from.