|
Speaker Asylum General speaker questions for audio and home theater. |
|
|
|
Speaker Asylum General speaker questions for audio and home theater. |
|
In Reply to: Re: For those who don't believe in room correction... posted by SteveB on December 26, 2005 at 12:31:43:
The theory that room acoustics problems can only be solved by room acoustics treatments is correct.But the theory works much better in textbooks than in reality.
One important room acoustics problem is room bass resonances.
The most annoying bass resonances are those that cause bass peaks at the primary listening position.
Bass peaks are caused by in-phase bass reflections off room surfaces.
Careful parametric equalization, reducing bass output in very narrow bands, will significantly flatten the bass frequency response at the primary listening position. Nearby listening positions are likely to benefit too -- more distant listening positions may sound worse after EQ.
This is not masking a problem -- it is reducing a problem.
The acoustics textbook "theory" solution of using bass traps is practical for upper bass frequencies (60-120Hz.) ... but the quantity of bass traps needed to absorb bass reflections under 60Hz. is so large that I've only experienced it in one listening room (excluding anechoic chambers I've been in) in 40 years as an audiophile.
And that was at a recording studio -- no wife would tolerate a room filled with so many bass traps.EQ to eliminate bass peaks at the primary listening position may be thought of as a band aid ... but it's a very low cost* and effective band aid, especially at bass frequencies under 60Hz. where bass traps are not efficient.
*It's not necessary to spend a lot of money on TACT components -- a $100 digital subwoofer EQ can do the job too.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- "The problem with this approach is that it doesn't actually address the real problem" = WRONG - Richard BassNut Greene 12/27/0508:07:33 12/27/05 (5)
- Wrong? - SteveB 04:44:53 12/28/05 (2)
- Too much theory - SteveB 14:42:04 12/28/05 (0)
- Too much theory ! If the bass from 55-60Hz. is 5dB too loud, it will sound better if cut by 5dB ! - Richard BassNut Greene 10:49:26 12/28/05 (0)
- Re: "The problem with this approach is that it doesn't actually address the real problem" = WRONG - gdg 16:36:58 12/27/05 (1)
- The listening room creates phase problems! - Richard BassNut Greene 10:55:21 12/28/05 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
