I'm playing the LaserDisc of Madonna: The Girlie Show on my EAD TheaterVision LD player because it has an amazing digital 3D Motion Adaptive Comb Filter that is adjustable between a standard 3-Line 2D comb filter and the full 2-frame 3D comb filter - there's so much fine color detail in the concert video that it requires a 3D comb filter to eliminate dot crawl and cross-color rainbows on fine pattern areas like Madonna's fish-net stockings. The audio is being decoded by the re-clocked dual Philips Bitstream DA converters and filtered with Pioneer's cool Legato Link Conversion which add's back missing high frequencies above 20kHz that get filtered out during the analog to digital conversion. That's all in the player and I have the player connected to my Hughes AK-500 SRS processor with the Center control at its normal position and the Space control turned up slightly to widen the image a bit. Then the SRS processed sound is being synthesized to 270 degree surround via my Fosgate Tate II 101A's Surround mode. The SRS combined with the Tate is a really great combination because it totally eliminates the gaps that can occur between the rear channels and the front L/R channels. And since SRS (well, the original SRS that only the actual Hughes units employed) applies Head Related Transfer Functions to the signal in an adaptive manner - so they can't overpower the mono components of the signal - the room seems HUGE, like its twice the size and all the speakers have been moved back by 10 feet or so.
i have the DVD of this LaserDisc and it has a fully discrete AC-3 soundtrack mixed from the 48 track original concert recording, and while its a good, discrete surround mix, I by far prefer the 'fake' surround created by the Fosgate Tate combined with original SRS processing. Even the Dolby Stereo downmix of the DVD run through the Tate sounds better than the discrete mix. This kind of thing is one of the reasons I like SQ - and SQ Stereo-to-Surround Synthesis - so much; by pre-processing the original stereo signal you can create surround sound that sounds better than the discrete original and also bring out background sounds and small details in the mix that are otherwise masked. And I prefer SQ's surround synthesis, as done by the Tate, over QS synthesis - I have a QRX-6500 receiver with the Type B Vario-Matrix and I've heard the QSD-1 as well as the QSD-1000, and in all cases, while the basic "effect" is the same between the Tate and the full QS Vario-Matrix surround synthesis mode, the QS system allows far too much of the center front vocals to be reproduced from the rear speakers, creating that awful 'in your head' effect that non-logic SQ was notorious for. QS just allows too much CF bleed into the rears. It can never seem to reproduce a solid CF vocal that's firmly up front. And the QS Vario-Matrix processing on QS encoded recordings creates side to side wander of the CF vocals and instruments due to the fact that standard QS requires side to side logic enhancement... Something SQ does not - SQ's logic requirements are all from front/back which we are less sensitive to by a factor of 10.
I bought a new in the box Desper HTMS-2510 Spatializer processor on eBay last week for 9 dollars and it will be here tomorrow. Since the Spatializer 3D audio process was used on many, many albums, and still is being used, I can't wait to hear how the stand alone home unit enhances SQ encoded recordings or stereo recordings prior to surround synthesis. The unit has a built in feature that can detect if the recording has been processed with the pro Spatializer system during recording or mastering and it turns off the Spatializer processing for as long as it detects the pre processed signal. I recall reading in Mix Magazine that Spatializer and SRS worked very well together, so that combined with the Tate will be interesting to hear.
One thing I'm VERY, VERY excited about is I managed to put enough money together and I have bought an Involve Surround Master SQ decoder - well I should say QS/SQ decoder since it does both - it shipped today and from what I understand should take about 2 weeks to get here. I simply can't wait to hear it - and while it doesn't have a stereo to 270 degree surround synthesis mode like the Tate, there is a simple way to adjus the settings on the Tate and feed its front outputs into the Involve Surround Master SQ decoder and get the exact same 270 surround synthesis that the Fosgate Tate provides. So I won't lose the fabulous surround synthesis when using the multi-band Surround Master SQ decoder.
BTW, I have a copy of an article on how to make a stereo to surround synthesizer for SQ. it even has a switch on it to produce 180 degree enhancement or full surround 270 enhancement. Its the same circuit that the Fosgate Tate 101A and Audionics Space & Image Composer used and was invented by Ben Bauer in request to letters written to CBS complaining that SQ had no synthesis mode like the QS Vario-Matrix decoders did. Anyway, the circuit is built around the Motorola SQ Matrix Decoder IC, which you can buy easily on eBay for 10 bucks, and the article has a full image of the printed circuit board that can be used to etch your own board - it also lists all the other parts required and where they go on the board. Once built, you can use it as a stand alone processor to encode stereo recordings into full surround SQ encoded stereo and record it to CD or your iPod, etc... If anyone is interested in it, I'll scan it and make a PDF so you can build one. I'd think Surround Master SQ decoder users would be really interested and for someone who knows how to make circuit boards, it might be a nice little side project to make a few to sell here on QQ. When the article came out you could buy it all as a kit for so,etching like $15 or pre-built, just missing a box to put it in, for $24. Like I said, the SQ IC's are cheap and readily available on eBay and it doesn't use a lot of parts, so should be easy to make if you know how to make circuit boards.
i also have an article, like the synthesizer article has the circuit board tracing image, and its to build a Full Wave-Matching Logic w/Front-Back Logic decoder based on the 3 Motorola SQ IC's. like the SQ matrix chip, the other two IC's used for the VCA's and Wave-Matching are easy to get on ebay for less than $13 or so for each IC. I'll scan and make PDF's if anyone wants a copy.
well, as usual I kinda went off and ran too long, so I'll stop writing before I make all of you mad at me. Back to The Girlie Show in amazing Fosgate Tate and SRS Surround Sound!