This is redundant, but it's important to keep you in the loop. There is a group thread on the $10-15k Trinnov/TEQ: "Datasat RS20i BETA test and comparison with ADA Rhapsody/Trinnov TEQ-12!!!!" They have the same questions you guys do... as it is as a group, they are speculating and you are using.... so it's helpful sometimes to share experiences.
Originally Posted by CINERAMAX
How easy is it to create height channels?...
I know doing the width channels is easy, how can you create height channels with the ada or the trinov pro piece?
Peter and I have been discussing his project off-line. The answer to the question is not obvious, as there are several aspects that are operating in concert when we consider "height channels." Therefore I'm going to provide some insight and some AVS quotes from a Trinnov user who has done all three height possibilities.
At Trinnov we are not after fabricating something that is not in the mix. Rather, we are after spatial accuracy inherent in every mix. We can speculate that the use of height and width in the fixed speaker positions products are there to give a further sense of envelopment, to make the speakers disappear, and render more life like sound. This is not an constraint with Trinnov Remapping, so the approach to height is different: height speakers in Trinnov contribute to building the original acoustic field. Example (thanks Ryan1 and sdurani, R972 Trinnov User Notes thread)....
Originally Posted by Ryan1
...in my case I hooked up the Heights to the Surround Back outputs of the R-972 and ran Trinnov Optimizer.
I have a Center below the TV, Fronts a bit wider and lower than the TV and Heights wider yet and almost at ceiling level.
What Trinnov's 3D setting does is quite remarkable: the dialog appears to come from the TV screen, with other sounds seemingly coming from various points around the whole frontal area.
The precise positions of the individual speakers themselves are not really identifiable -- it's more of an enveloping field.
After some experimenting, I have settled to using the Music setting, rather than the Cinema one -- it just gives an extra sense of airiness, at least in my room, which I like.
I also find using Heights in this way to be significantly more beneficial than using Surround Backs.
Originally Posted by sdurani
Keep in mind that folks in this thread are using height speakers differently from how they are used on all other receivers, where information is extracted (Dolby PLIIz) or generated (Audyssey DSX) with the intent of being played back from speakers placed high up. The heights in the case of Trinnov remapping are used to create phantom imaging slightly above your LCR speakers in order to raise the soundstage to appear closer to ear level. That's very different from the height effect from PLIIz or DSX.
This makes sense, but it does go beyond this. A characteristic of Trinnov Remapping is to give a sense of width and height space that extends to the borders of the speakers, while the image remains in a focused. It is one of the reasons I've encouraged the use of height in the R972 Trinnov User Guide. I've not used the other systems, so can't comment on the relative merits.
Originally Posted by Ryan1
This is, true, as far as I know. But while the dialog does appear to come from wherever the "center" was during calibration (in my case the middle of the screen), other sounds appear to come from all over, including from higher up.
So, at least in my opinion, the end result is a much fuller and more seamless sound stage, both horizontally and vertically, than I was ever able to achieve with Audyssey DSX or Dolby PLIIz.
Of course, I may well be hearing things.
Curt can probably explain how Trinnov Surround distributes sound to the Heights.
Perhaps I'll be able to go into more details later. For now, I hope the experiences of Trinnov users give you some insight to the possibilities.