I am trying to get audio input and output with an USB sound card (tested on Windows, works perfectly fine). With help from the Internet, I can record and listen sounds with the card but the quality is really bad. I've tried to play a good quality file : it works fine with analog output but not with the usb sound card.
Here is the card I use (on Amazon). I know this is a cheap card but the quality is really really bad (lot of sizzling).
To record and listen, I use
If you have any ideas, please let me know :)
Edit : it only works fine with S16LE