Quote Originally Posted by Mash
OKaaayyyy

"The generation of a soundstage requires ITD and IID information. IID is what Davis speaks on. Nowhere is there anything about ITD. ITD is probably the most important parameter for localization of sound.."

And then we read:

"If a different set of cables truly changed the ITD content, then how long does it take for the human mind to re-aquire the imaging construct? If it takes several days for the mind to re-adjust to the different ITD configuration, then fast switching, consistent with standart DBT protocols, is useless. "

OK- I got lost by this elusive "IF" : " If it takes several days for the mind to re-adjust to the different ITD configuration...." combined with "...then fast switching, consistent with standart DBT protocols, is useless. " Huh? A speculative IF can dismiss the validity of DBT? I don't get it. DBT is ONLY intended to determine IF a difference can be perceived, or IF a difference CANNOT be perceived, between the paired items being tested. If the difference CANNOT be perceived, then why would you worry about any previously-presumed distinctions between those test items? Move on to distinctions that you demonstrate you CAN perceive......

Why are we worrying about whether the mind can re-adjust to a different ITD configuration...? Sounds waaayyyy too metaphysical to me.
The elusive "ifs".

First if..., I said IF the cables changed ITD content...because I have yet to provide actual data to that extent of their ability to make an AUDIBLE (key) change..I know they can change the ITD relations..but it is not known if we can hear it..

Second if.. best example I can think of is night vision..if you quickly leave a very bright room, into a moonless forest, and a candle if 1000 yards away, you will not be able to see it immediately, you're vision system has to re-adjust. It takes time..eventually, you will see it..

The imaging of a virtual soundstage requires the brain adjust itself to the bad data it is receiving...the terrible reproduction scenario RC speaks about..is certainly bad...it is an artificial aural stimulus...not a natural one..

So, how long does it take to "train" oneself to visualize the soundstage? I don't know, I have no hard data yet..it is in fact, one of the confounding variables I have considered in my testing..am I learning how to pinpoint the stimulus with time??

This is the problem I see when considering DBT for use in soundstage determination...the instrument being used is inexact. I would consider DBT only useful for monophonic discerning..and use caution for virtual imaging tests..

Cheers, John