[lallysingh]

That "sounds" to me like the mic was properly cut off electrically, but the rest of the system as active, so you'd get electrical noise coming in. E.g., the mic and amp are powered down, but the ADC is still active.

My old Sun Ultra 40 M2 had a ton of electrical noise on my headphone jack, and I could def. tell when the CPU was busy from what I was hearing.

[Obscurity4340]

I meant like, even after toggling it off when you made noise or spoke, there was a visual representation/feedback for that shown in the wavy graph thing. Not just ambient/moving parts type noise. Just thought it was weird, never really thought about it too much.