Originally Posted by GGA
OT for Curt. When I send decoded PCM via DB25 to the Datasat I must manually chose from three types of input configurations for correct NeoX/PLIIx processing to 7.1:
1) DD/DTS/2.0 so that the DD/DTS decoder is used
2) 5.1 PCM for expansion to 7.1
3) 7.1 PCM so that there is no expansion to 7.1, ie, since the Datasat cannot know there are 7.1 channels on the incoming signal it might be tempted to expand the 5.1 (of the 7.1) to 7.1 if not told otherwise.
How does the Trinnov handle this?
The short answer: select on the Trinnov the incoming audio configuration: channels (5.1, 7.1, etc) and format (ITU, SMPTE SDDS, etc).
Long answer: It's a great question, as it brings up two significant differences between the Datasat and Trinnov.
While both Datasat and Trinnov have multi-channel digital inputs and lots of outputs, only the Datasat has DD/DTS decoding and processing,
which leads to the options you outline above. Trinnov is usually paired with a decoding unit of some kind to take care of this limitation. As an example, Many use a modified Oppo and a separate processor for decoding HDTV streams.
On the other hand, Trinnov uniquely has Remapping options,
which no other EQ box or processor has (excluding the out of production R972). Unlike processing such as NeoX, which synthesizes additional speaker feeds based on assumed speaker locations and content
, Trinnov Remapping takes the source channel format and "transforms" it to a known, measured speaker layout.
This is huge, because the originating acoustic field is transformed to your room.,
using a mathematical Fourier Bessel Transform. This results in the most accurate reproduction of the original acoustic field possible given your set of room/speaker variables. Internet updates to new formats may become available as they emerge, including new 3d formats.
The limit for Remapping is only how many speakers are connected, which may be up to 32 in the Trinnov Magnitude 32. With the Trinnov MC and ADA Reference, the limit is currently 16 speakers. The best rooms usually have 11 full channels plus an assortment of subs, and I've worked with channel counts up to 24. All this really depends on the room. As a minimum, 7.2 rooms can be amazing for movies, and some 5.2 rooms for music really shine as well.
BTW, the ADA Reference offers the combined features of both the Datasat and Trinnov MC- codecs, processing modes, and Trinnov MC features of EQ and Remapping.
Cheers,Edited by Curt_Trinnov - 7/3/13 at 5:35pm