I realise this sounds like a bit of a dumb question. Why, it's that "Ssssss" noise on your audio of course!
But what is the cause? Hum, in my case, is usually caused by some equipment which is causing vibration, I suppose. So what is hiss?
Seems obvious for me to assume, it may come from using mediocre equipment in many cases - but what exactly would you say is the main factor(s) in such equipment that might be generating this sort of noise?
Thanks in advance