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 4 responses by randy-11

I have an open floor plan so this will not work for me, but if you have an enclosed listening room you can use an online calculator to get the room modes (freq.s where the sound amplitude "stacks up" i.e. wave superposition).
http://www.mh-audio.nl/sg.asp

a larger number of subs can give xlnt results

Great topic and posts willemj - room equalization is an important issue, much more so than most of the threads on here

... mre tidbits follow
The very best reference book and how to that I know of is:
Master Handbook of Acoustics. by F. Alton Everest, and‎ Ken Pohlmann.

As an audio cheapskate, I save $20 and checked it out from my local library.

a couple of tidbits from an Email exchange with ASC (Tube-Traps):

1. ona hardwood floor, put a rug down, which should extend all the way underneath the speakers, sticking out for at least a foot in all directions from under each speaker. The rug should also extend all the way beneath the listening chair. This can have a large effect, softening the perceived hardness and brightness of the sound.

2. for glass windows, use the heaviest-available theater drapes from www.rosebrand.com -- even these are acoustically transparent below 1,000 Hz -- but the main components of stereo image formation occur above 1,000 Hz