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How quiet is your room?

I was wondering if anyone else out there has room treatments and is measuring the noise levels in their room without any sound. My main listening room is between 40-43 DB with just pure ambient noise. It will get lower, but the normal running range on my meter is between these numbers.

Are others out in the community finding much lower figures with a treated room?
If so, how did you get there?

Are others out there seeing much higher levels?

Thanks for the feedback.

David
davidstingray
ngjockey
1,042 posts
 
Not far from a highway, so 50's during the day and 40's at night. Depends on weighting.
davidstingray OP
17 posts
 
My measurement was with the AC turned off. I am just below 50db with the AC running as my room backs up to the utility room.
vapor1
107 posts
 
Using my Triplett SPL meter, right about 32-33db ... when I take a breath while measuring, it goes up to 37db :)

It's a purpose built from scratch audio room, and performs incredibly well.
davidstingray OP
17 posts
 
So it sounds like the low reading of 32-33 in Vapor's design / built room would serve as a good low benchmark. Impressive. I wonder how much of this is the preservation of outside sound coming in, as much as the absorption of internal ambient noise.

An interesting test in Vapor's room would be to have some one make multiple 50, 60, 70 db sounds from outside the room, and see if there is a large variance in the ambient sound in the room. I have to imagine this is a combination of both, but I would like to understand the relationship between outside prevention -vs- internal room absorption.

I am thinking that this room is really well protected from outside sound coming in.

Thanks for the feedback.
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