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Difference between DTS/DD/Dolby Surround/Prologic
Posted by Rakesh Malik [IP: 204.176.12.196] on June 01, 1999 at 09:34:35 In Reply to: Difference between DTS/DD/Dolby Surround/Prologic posted by Ken Simmons on May 31, 1999 at 13:11:06: "The "Beta" (supposed) of high-end enjoyment. Unfortunately, the market is "rejecting" this format AND the DTS "consortium" has "changed the rules" with the compression, making EXISTING AND OLDER decoders INCOMPATIBLE with the "new format" (this was covered in an earlier thread in one of the fora :) )." That is not entirely true. There are an increasing number of DTS titles hitting the market, but it's gaining rather slow acceptance. The compression has not changed, it was an encoding problem; the DVD players do need updating, but the same decoders still work. Also, it usually comes at no real cost to the purchaser these days. Most receiver manufacturers are using the same Motorola processor for decoding both Dolby Digital and DTS. It's only at the high-end where there is a DSP dedicated to each. Although I would consider DTS decoding to be a plus in a receiver, I would not really consider its lack a minus. If you have to choose between a DD/DTS receiver and a DD receiver with 6-channel inputs, go with the one with 6-channel inputs. That way, if DTS does actually become popular, you can still use it with an external decoder, but you can also use any other sound format the becomes prevalent, like Meridian Lossless Packing or Direct Stream Digital, both of which I figure have a better chance in the marketplace than DTS for the long-term. Besides, Delos and Chesky have both demonstrated that Dolby Digital can be used to for very high-quality music recordings, due in part to it's variable bit-rate support. Chesky is using Dolby Digital to record 2 channels of 24-bit audio at 96 Khz already, and Delos is using all 6 channels at 20-bit resolution and 48 KHz sample rates to record the reverberant ambiance of a concert hall. Although I like DTS, even though you can get it pretty much as a freebie on most receivers nowadays, and there are actually new titles being released using it, I don't think it's ever going to be a very pervasive format. -Rakesh
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