Audio from amp digitized via little converter box and plugged into USB input of Windows 10 PC. With Audacity open it shows on meters and level can be controlled by mic level slider BUT when record button is depressed, no waveform is created as recording progresses across the screen. I have been through PC and Audacity settings 10 times. What am I doing wrong?
AMD PHENOM II X4 810 PROCESSOR 2.60GHz
8 GB RAM
Windows 10 Home, 1903
Audacity2.3.3
Digital converter box behringer u-control uca202