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Room Acoustics

Just tested my media room using the Rives test disc (pink noise) and a RS analog SPL meter.

Couple of things:
- I kneeled behind the meter, which was set on a tripod in my so-called sweet spot for two channel. Certain midrange frequencies were very sensitive to my location and movement.
- For the heck of it I put some FG acoustical treatments (4'x2') at the first reflection points. Plotted the data and found that it impacted some frequencies but appeared to create more spikes a troughs than without!

I am interested in how some of these room treatment companies can quote you a package without measurement!

I'm going to repeat the test from all seven seating locations. Expect to see some wide variation.
quicke
mprime
92 posts
 
Sean, have you played with room correction electronics (e.g. the TacT system)? If so, how would you rate their performance over standard room treatment approaches?

Finally - to everyone - why is there such a bias against such systems?

Thanks,
sogood51
2,157 posts
 
No bias here. Room treatments that get over-all freq. response with-in even 6-8db is very good in most rooms. These room correction devices can only help even more if used correctly.

Between speaker placement, seating placement, room treatments, and some mild room correction you should be able to smooth things out to a great degree.

Another nice feature of some of the correction devices is the fact that you also get an active digital X-over with many settings.

Dave
mprime
92 posts
 
Dave,

First, cool system! Love it. Second, that's what I see: room treatment is - at best - shotgun accuracy; contrast that to what these RCS systems can do (rifle accuracy) on the linearity of the response! On paper, amazing.

I'd love to compare a spectacular system (e.g. Mike L's or Albert Porter's) before room treatments with RCS and after room treatment (or construction, in Mike's case) without the RCS.
sogood51
2,157 posts
 
Thanks Mprime, we have a member of the Apogee speaker user forum with Apogee Mini Grands. He has used the TacT unit to tweak his system/room with fantastic results as reported by him and other members who have listened to the before and after results.

He mentioned that before the TacT he could never fully enjoy his system because of his room.

Dave
warnerwh
539 posts
 
Once you get your room bass traps and some more treatment you will find out that the sound can improved dramatically. Without the treatment of some sort of DSP like the Tact then your sytem will not sound near as good as it can. The best part is that room treatment has a very good sound improvement per dollar ratio.
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