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Room acoustics

How about a thread on room acoustics and ways to improve the in-room performance of your system and its speakers? Subjects covered could be the physics of room response, measurement of response in your own room, and how to deal with imperfections, above and below the Schroeder frequency, like damping, bass traps, speaker positioning, (multiple) subwoofers, and dsp equalization. Other subjects could be how to create a room with lower background noise for greater dynamic range, building construction, or what to do in small rooms.
I am a bit busy just now, but as soon as I have time I will try to kick off with some posts and links.
willemj

Showing 3 responses by robd2

robd2
45 posts
 
Great thread! Another ++ for Room EQ Wizard, great software. I don't focus so much initially on the frequency response charts. I begin with the waterfall or spectrogram looking for base that is hanging in the room too long. Even a few 6" base traps from GIK start to help this. 
robd2
45 posts
 
@toddverrone are you able to set some limits in your waterfall plots? Maybe just the first chart to begin with. Set frequency 10-500HZ, 30-90 dbs, and time to 500ms. Then we can read the data better.
robd2
45 posts
 
@toddverrone much better, now you can see more of what's going on. Here are a few targets for you to hit with your tuning from the excellent Acoustic Frounteers guide.

Resonances from 35Hz­300Hz should not extend beyond 350ms before decaying into the noise floor or reaching a level of ­40dB.

Below 35Hz this standard is relaxed to 450ms.
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