TKA Posted February 22, 2001 Share Posted February 22, 2001 Could someone define some of the terms involved in multi channel sound such as DTS, THX, ProLogic etc.? Thanks TKA Quote Link to comment Share on other sites More sharing options...
mustang6 Posted February 22, 2001 Share Posted February 22, 2001 As far as the 5.1 and the 6.1 out there here is what I know(or think I know): Dolby Digital 5.1 - Dolby Labs DTS - which is a competitor to Dolby Labs Both above formats are 5.1: Left Front, Center, Right Front, Left Rear, Right Rear, and LFE(some call it subwofer out(.1)) Then DTS came out with DTS ES: Same at DTS with the addition of a matrixed rear center. To counter, Dolby labs working with THX came out with: THX EX also known as Dolby Digital EX, this includes a matrixed rear center channel. You will never hear Dolby Labs call it 6.1. Then to one up Dolby labs, DTS came out with: DTS ES 6.1 Discrete. This has a true encoded dicrete rear center channel, it is not matrixed. In all formats the channels are full range with the exception of the LFE. In Prologic(Dolby Labs): This consists of Left Front, Center, Right Front and Matrixed mono rear channel in a specific frequency range. To sum up the formats are: Dolby Prologic Dolby Digital 5.1 DTS Dolby Digital EX or THX EX DTS ES DTS ES 6.1 Discrete I hope this helps. If I am wrong in anything above, someone please correct me so I can get the right story. This is what I think is out thee and my understanding. Thanks Mustang6 Covington, LA Quote Link to comment Share on other sites More sharing options...
boa12 Posted February 22, 2001 Share Posted February 22, 2001 mustang, right on, but what about 7.1? forget what they're calling that & wonder if there is much 7.1 source material? Quote Link to comment Share on other sites More sharing options...
boa12 Posted February 22, 2001 Share Posted February 22, 2001 we have a post basically going on this under broadcast surround. answered part of my ? mustang. dolby E - up to 7.1 channels. dts probably has something equivalent. it's a matter of getting the movie producers & then the broadcasters to buy into it. check this out: http://www.dolby.com/press/wb.pr.0102.ProdnShow2001.html or www.dolby.com or www.dtsonline.com keep on lobbying Quote Link to comment Share on other sites More sharing options...
TKA Posted February 23, 2001 Author Share Posted February 23, 2001 Thanks Mustang, That helps. Boa, I have been reading broadcast surround and am a little confused. I think what is being decided is that the TV recieves a stereo signal that can be seperated into the early Dolby surround. When the signal becomes 5.1 or better then we can get a true seperate channel surround sound. Thanks TKA Quote Link to comment Share on other sites More sharing options...
boa12 Posted February 23, 2001 Share Posted February 23, 2001 tka, sorry i just realized u started that other thread. it's gotten pretty complicated there, which happens that's basically correct - simply, as long as a broadcast is in stereo, & u have at least a prologic (dolby 2.0) decoder in your receiver, then that decoder takes the stereo signal & gives u that surround effect u said. to get the true dolby digital 5.1 (6 discrete channels) from a tv, the source material must be mixed, encoded & broadcast in 5.1 & then of course decoded w/ a dolby digital (or dts) decoder such as those in many ht receivers. the bottleneck seems to be at the broadcasters, as it is up to them to actually transmit a 5.1 encoded signal. hope that explains. ------------------ RF-3 (front), RC-3, Cornwall I (rear) Velodyne HGS-18 sub Monsterbass 400 sub cables & Monster Z-12 wire Sony de935 a/v receiver Sony DVP-C650D dvdp Sony Trinitron 27" tv Technics dual cassette deck Technics direct drive turntable Scientific Atlanta Explorer 2000 digital cable box rock on! Quote Link to comment Share on other sites More sharing options...
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