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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: Your paper applies to surround sound but many readers assume 4 subs are best for two-channel posted by Richard BassNut Greene on March 12, 2007 at 08:31:20:
Well, general responses first. Let's get something straight, it's not an issues of two channel vs multichannel audio. It's simply whether or not you have more than one listener position, as I explained.I am all for controlled listening tests, which most "audiophiles" eschew. In fact, I have done a series of controlled listening tests comparing "stereo" subwoofer setups and mono setups (several configurations). It is publixhed as an AES preprint (Subjective Comparison of Single Channel versus Two Channel Subwoofer Reproduction, Oct 2004, preprint 6322.). Though I biased the experiments strongly towards finding differences, it was extremely hard for the subjects to tell the difference. So much for stereo bass.
As for experts disagreeing, of course people disagree. You can read the comments by Earl on the May 2006 AES, regarding a later journal paper conver the subwoofer thing. If you do read it, you see that he really doesn't disagree with the core concepts. He is doing some stuff with vertical displacement of the subs (which might be especially interesting considering raked seating area - whoops there I go with the "not audiophile" thing again!)
I have talked to Tom Noussaine, and he did not disagree with my ideas. He may have tested it in one room and it didn't work, but I neven said it would work in every room.
What is typical seated ear height? Around 3 1/5 feet - hmmm thats puts it fairly close the the null for the first axial floor/ceiling mode (4 to 4 1/2 feet). In any case this part of the response should not vary from seat to seat (for a flat seating area anyway), so is amenable to equalization.
I will not respond further here, as I can see you have made up your mind.
Have fun with it!
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Follow Ups
- 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)
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