Set to stereo but records mono or one channel

Audacity 3 Help Forum Windows
11

Your input device spec "Line (2- USB AUDIO CODEC) looks a little suspicious; can you run Help > Diagnostics > Audio Device Info, then post the results?

Here are some other thoughts:

  1. Try WASAPI
  2. See: Mono Recording from Audio-Technica LP120 [SOLVED]
  3. See: Audacity not recording in stereo [SOLVED]