What is the sound level of Your Listening Room?


I am curious about what the sound level is at your listening position with your system turned off. I have checked mine and during the day it is about 43 dB and at 1:00 a.m. it can be as low as 28. I can improve the daytime level to 35 dB by turning off the refrigerators and air conditioner. What have you done to improve the sound level of your room?

I am considering adding a listening room to the back of my garage (wife is on board because she needs more storage space) and if you have made improvements that have reduced your ambient noise, please share them.
128x128baclagg
fiesta75, yes, I was thinking the same thing. 7 is imo not attainable in a domestic environment. Recording studios are doing well to be under 20dB.  

mijostyn, Have you experienced what a room with reduced environmental noise does for the listening? Obviously, reducing source noise is advantageous, but irrelevant to this discussion. 

The genre of music played is absolutely associated with this topic. If you listen to music that has quiet or silent passages, guess what? You can hear environmental noise if your system doesn't intrude with its own noise. Those in normal domestic environments will have little appreciation of that variable.  

For instance, the start of Shelby Lynn's "Just A Little Lovin'" begins with a field of silence into which individual drum and cymbal strikes repeat. I assure you that a deeply depressed ambient noise field changes the musical perception radically. Any ambient noise, from an AC unit to an appliance motor running, etc. intrudes obnoxiously. At about 2:45 there is a pregnant pause as the instrumentation fades until almost silence. Again, if there is ambient noise of any degree in the room, it will sound like utter intrusion. Perhaps that is not your preference of genre of music, but simply because it is not important to you doesn't mean it's not an issue/consideration for other hobbyists.  :) 


7dB is totally obtainable. I was able to go much lower than that even. Remember, dB is a log scale of pressure differentials. We like to think of it as measuring sound pressure level when really it is measuring pressure wave differentials. Sound is a wave of compression followed by rarefaction. High pressure followed by low pressure. This is the key concept to keep in mind when trying to lower your dB.  

Since what dB really is measuring is the difference between the two then the way to get it lower is to eliminate this difference. This is done most cost-effectively by filling your underground concrete bunker with liquid nitrogen. Within a few hours, a day or two at most, all motion ceases and you have virtually 0 dB. At least I am pretty sure. Every time I try and check my meter freezes over. 
mahgister,
I read your posts and think that you make many good points.  Your decibel scale is way off!  First off there is no such thing as zero decibel and obviously no one has "heard" zero decibels. Even the quietest room in the world is not "zero".  Secondly and finally...if you think that screaming in someone's ear is only 110 dB take a flight to NJ and I'll ring your ears for days with a few seconds of full blast vocal chords.  Not sure where you got that info, but you are being misguided by it. All the best.
Warm Regards,
barts  
31 db pretty consistently as I just tested - 5:14P and mostly quiet. Interesting thread.
douglas_schroeder

Thanks. we are on the same page.  I absolutely loathe intrusive noise of any kind.
Particularly phones which are banned from new and former listening rooms. 
Secret Intel: I unplug the main connections to the house land line when I'm seriously listening.  Now, only you and several A'goners know. All the best
Regards,
barts