?

I set my Sabrent USB audio device as the "default" by right clicking on the speaker icon in the Buster GUI and then selected it for output and input.? I then adjusted the levels/sliders for? speaker, mic and capture? I checked and these settings are also shown in alsamixer.? I also check the .asoundrc file and it shows the card 2 (USB device) being selected. Then I selected "default" for input and output under the audio tab in WSJTX and everything seems to work. I'm not running any other applications at this time. I have just a couple of questions.

Was the above approach the best way to set up audio?
Is there another approach that might provide better performance and reduce any potential latency?
Why are there settings for both Mic and Capture?? How do these relate to each other?
Is there any risk of the RPi generating some beeps or other audio that may end up getting transmitted?? If so, how can these be silenced?
Unrelated to audio - are there any background processes running on the RPi that can potentially disrupt decoding at times?? If so, can these be reduced in priority or suspended?

Thanks for your help!

73,

Ron (KA3J)