Background Hisssss

Snake Sounds

I was getting background hiss from time to time and instinctively knew there was a problem. Where was the hiss coming from?

I checked obvious inputs, and nothing was connected, so where was the hissing source?

I just knew it had to be on the input side, cos it was not there a few days ago.

I fired up Alsa Volume Control Manager and systematically worked through the inputs. I killed each in sequence.

Eureka.

Microphone and Mic Boost Input was set at 100%.

I muted both and silence prevailed.

Excellent.