Even if you don’t have any SPL meters, it’s really as simple as just sitting in your listening room sweet spot, and for a few moments, listening; with no music playing. If you hear your refrigerator running, or your furnace running, or neighbors outside, or even audio equipment transformer mechanical hum; this background noise, in essence, is raising your *perceived* listening room noise floor. You may tune it out when music is playing, but it’s still there. You may find (I know I do) your listening experience, better, or improved, by trying to lower the ambient noise level in your listening area. It goes without saying that so much about achieving and reaching audio system performance nirvana is about listening - buzzes, hums, wall reflections, dead acoustics, cold acoustics, the difference in cable choices, etc. (keeping the good, while eliminating the bad). In my particular situation, my furnace and refrigerator are the loudest in my home. If I’m in a serious listening mood, and want a really quiet listening environment, I will temporarily turn them off.
Background noise.
I was just reminded of how critical the ambient noise level is to appreciating a good system.
Because the air quality has not been that good over the last week. I had turned on my air cleaner in the next room, on low, about 25 feet away from my audio seat… and 33’ from my speakers. The air filter is not noisy and set on low. I do not notice it when not listening to music while sitting in my audio chair.
I was listening to a vinyl album I know well. I appreciated that I could not hear a bit of surface noise, not even a little. But it seemed like something was missing… the full dynamics of the album.
Finally I remembered the air filter was on. I turned it off. Wow. What a difference. My system’s noise floor is way below my room’s with the air filter on… even though it is really difficult to hear the air filter without the system on.
Ambient noise is really important… even when at the threshold of perception. Distant refrigerators, laundry… or air conditioners.
- ...
- 35 posts total
- 35 posts total