So, I'm using audacity to record from the board and I have always wondered why half of the waveform is above zero and why half is below. When it's below zero does that mean there's negative sound? Is there such a thing as negative sound?
I noticed today that the above and below parts are fairly symmetrical until I cranked the gain on the channel which drove the board into the red and produced a heavily distorted signal which looked like this in audacity:
What is going on with the signal here?
I'm not looking for "don't crank the gain"... that was an experiment and the power amp was turned down to protect the innocent.