Things to do to ensure high quality:
- Use Post-3D and Mute PCM to remove echo (yes, this actually works)
- Capture must be selected. To select the microphone, first select aux for capture, then select mic for capture.
- Settings: PCM mute, post 3D, mic boost mute, mic1,
- mic boost off, mic at 50 or so, set capture to mic, mic1, capture 100%