My producer advised that a faint hum has crept into recent recordings, so I've been trying to find and remove (yet more) sources of noise pollution:
- A cheap electric clock in the next room, which shouldn't have any mechanical parts, and yet, inexplicably made a faint humming. Gone.
- My desktop's fan, which had been extremely silent, but perhaps due to summer's heat had revved up half a notch. So I broke everything down, and now the computer lives underneath my desk instead of on top of it. Further away, and should also be slightly cooler there. Seems to help a pinch. I may still add some Auralex down there to further isolate it.
- My "ghetto" kitty-litter-jug microphone mount seems to be picking up a bit of vibration; its sides may be acting as (microphone) diaphragms. Time to upgrade to something more professional. For the immediate short-term, let's try a full jug instead of an empty one!
- I also keep meaning to treat more of the ceiling with some simple packing foam; guess it's time for that, too.
I must be getting closer to the ideal. When I tried just holding the mic, (instead of using the mount), it picked up the creaking of my bones, and even my own heartbeat:
(And yes, I checked: The song title uses "Sound", singular. The album used the plural. The YouTube video title is technically wrong, even though the album cover graphic is right.)