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In Reply to: Re: Relative to your theories... posted by Soundmind on November 2, 2006 at 17:02:29:
Boston's symphony hall is a shoebox, given the fan shape of Carnegie, how does that affect the ratio? Or for that matter, the reverberant field? To me, Bose's flaw was that he used Boston to model the rest of the world. Seems to be inept science to me :)
Follow Ups:
"But do all halls behave the same?"Not only don't any two halls behave the same, the same hall may not behave exactly the same way from one day to the next. And they don't behave the same from one seat to the next or one musician to the one sitting next to him. However, among experts in the field of acoustics, Boston Symphony Hall is considered by many of them to be the best room for listening to music in in the United States and one of the very best ones in the world. Leo Beranek certainly thought so. I commend his lecture at Georgia Tech to anyone insterested in acoustics.
"To me, Bose's flaw was that he used Boston to model the rest of the world. Seems to be inept science to me :)"
The rationale for using his research in Boston Symphony hall to justify his speaker design wasn't just bad science, it was non science. The reverberant sound field produced by the Bose 901 loudspeaker in a home listening room has virtually nothing in common with the reverberant field produced by Boston Symphony Hall or Carnegie Hall or any other concert hall in the world. How could it, a concert hall is hundreds of times larger than a home listening room. My listening room is 4000 cubic feet. My huge house including the basement, both floors, and the attic is 100,000 cubic feet. Carnegie hall is 900,000 cubic feet. How can a 4000 cu ft room sound like a 900,0000 cu ft room? I'm sure Dr. Bose would be the first to agree. Whatever rationale there is for his design (and despite the inherent shortcomings of it there were plenty of people who found its attributes overcame its drawbacks) the one he proposed in his white paper wasn't it. In short, Bose 901 cannot and does not sound like Boston Symphony Hall or any other hall. Neither do $16,000 worth of electrostatic dressing screens or anyone elses pair of hi fi loudspeakers. There is no configuration of a pair of loudspeakers or signal you can put through them which can bridge that gap.
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