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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: The acoustics does not change in the bass region. posted by Duke on March 6, 2007 at 11:42:36:
Computer simulations in one virtual home theater to jump to conclusions for ALL two-channel audio rooms AND no subjective listening at all!If this is how you reach your audio conclusions, Duke, then you are a "lost audiophile".
No real room measurements for Welti
(not sure if Geddes used real measurements).Only one virtual room used by Welti to represent all real rooms!
(not sure if Geddes measured in a real room).Simulated frequency response averaged by Welti for 16 seating positions in four rows
(I don't recall precisely but think Geddes used three positions)No concern about bass quality (or even measurements) in the ONE sweet spot for two-channel audio
No concern about subwoofer-front speaker integration.
No listening panel testing the simulated (jump to a) "conclusion" in a variety of different listening rooms.
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It's a rare room that will have bass frequency response, measured at one two-channel stereo sweet spot and including room effects, better than +/-10dB in the 20-100Hz. range.It may be possible, after months or even years of trial and error, to find positions for multiple subwoofers that are optimal for ONE seating position in ONE room ... but ONLY if you ignore the quality of subwoofer/main speaker integration (the quality of the front soundstage), which is the most important attribute when using a subwoofer(s) in a two-channel audio system, IMHO.
The sound quality at ONE SWEET SPOT is all that matters to most two-channel audio system owners. It could be all that matters to a particular home theater owner too.
But there is more than one sweet spot when a center speaker is used in a real theater, or in a home theater. That's why acousticians DO NOT CARE about the bass frequency response at any ONE seating position (contradicting the priorities of a two-channel audio system owner).
If you sit in a crowd of average Americans, the average IQ is likely to be about 100. Does that number "100" really mean anything for any one person in the crowd?
Well maybe it does for you!
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Richard BassNut Greene
Subjective Audiophile 2007
Richard BassNut Greene
Subjective Audiophile 2007
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Follow Ups
- If you think computer simulations in one virtual room results in conclusions for ALL rooms, you're a lost audiophile! - Richard BassNut Greene 10:07:21 03/07/07 (18)
- Acoustic principles don't change from room to room - only the specific application of those principles changes - Duke 10:32:08 03/07/07 (17)
- Did it ever occur to you that every so-called "expert" you cite has a DIFFERENT sub location recommendation !!!!!!!!!! - Richard BassNut Greene 08:38:46 03/08/07 (16)
- It is the data I am most interested in; I draw my own conclusions. (nt) - Duke 09:22:19 03/08/07 (15)
- It's the sound quality in a real room that I'm interested in -- not computer simulations never tested by real ears! - Richard BassNut Greene 09:52:24 03/08/07 (14)
- So... if I tell you that I've tried both and my way works best, will that convince you? - Duke 11:36:37 03/08/07 (13)
- Adding a third or fourth subwoofer may improve bass at your seat in your room ... or maybe make it worse! - Richard BassNut Greene 08:26:52 03/09/07 (12)
- Adding additional subs almost always results in smoothing. - Duke 09:29:21 03/09/07 (11)
- $10,000 says my one subwoofer + parametric EQ will be smoother than your three or four subwoofers in 9 out of 10 rooms - Richard BassNut Greene 13:40:32 03/09/07 (10)
- Depends on parameters of the contest - Duke 14:13:09 03/09/07 (9)
- Three or four "scattered subwoofers" all located on the floor = sonic disaster - Richard BassNut Greene 09:23:41 03/10/07 (8)
- not true - Duke 13:58:37 03/10/07 (7)
- Re: some comments - twelti 15:54:39 03/11/07 (6)
- Your paper applies to surround sound but many readers assume 4 subs are best for two-channel - Richard BassNut Greene 08:31:20 03/12/07 (2)
- Re: Your paper applies to surround sound but many readers assume 4 subs are best for two-channel - twelti 21:45:37 03/12/07 (1)
- My mind is open on a third or fourth subwoofer for two channel audio. You seem to have only conclusions. - Richard BassNut Greene 08:53:53 03/13/07 (0)
- Re: some comments - Duke 16:22:24 03/11/07 (2)
- Re: some comments - twelti 19:12:15 03/11/07 (1)
- "Heated exchange"??? - Richard BassNut Greene 09:12:33 03/12/07 (0)
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