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In Reply to: RE: Preamp with center channel posted by Kal Rubinson on August 01, 2012 at 20:03:09
Spread Spectrum Technologies provides some compelling information for adding a center channel. As a multi-channel listener I do believe what they have written. But their words could be embellishment to promote the Trinaural Processor. Can you direct me to some scientific support for their ad? I am most interested in their statement: ***there is an “Achilles Heel” within the stereo composite signal itself. This is the cross-coupled error signal.***
Robert C. Lang
Follow Ups:
I have issues with that statement as well. It seems strange that I've never heard of it before, and there is no explanation regarding what it is or how it is corrected. Perhaps the box creates this mystical error signal.
I continue to read, keeping an open mind.
-reub
Will you be attending the California Audio Show over the weekend? I'm headed out now
Robert C. Lang
I'm on the east coast and... no, I'm not planning to attend.
Best,
-reub
I cannot give you any references but you can experience this by test. Start with a mono recording and play it, first, over one (center) speaker and, then, over the stereo pair. Both will localize in the center but the tonal "body" will be different. Since all the signals are the same, the difference is an error introduced by splitting it electronically and recombining it acoustically.
"Since all the signals are the same, the difference is an error introduced by splitting it electronically and recombining it acoustically."
I suppose it's nit-picking but I wouldn't call that an error so much as an artifact.
Thanks to your pinnae, well actually your HRTF in general, your clever brain can usually tell where sound is coming from and since identical signals launched at two points in space is completely unnatural it doesn't seem likely that you'd miss it...
Rick
Well, I am a believer that three channels is audibly superior to two. I have experienced it. I was just looking for information with an independent source verification that I could then share with others, especially those with serious doubts. If I find some backup I will let you know.
Robert C. Lang
You might try looking up the Blumlein and Klipsch papers relating to 3 channel stereo.
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