When I first got a cpap, I asked my wife if I'm still snoring? She looked pensive and said no, it's more like a heavy breathing. I asked her what she meant by that and she said you know, like Darth Vader.
That was an early model though. They're much quieter now!
Same. Yeah these days, if you hear a lot of noise, that's a good indication something is wrong like a bad mask or hose seal or the humidity chamber is not in all the way.