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Is one prefered over the other? I have an Onkyo HT650 and usually have a choice of audio decoders to chose from when watching DVDs.
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Although, I have the subjective impression that DTS gets more spectacular results, the recent issue of $ensible Sound suggests that ain't neccessarily so. Per the article the problem is setting up your gear so that you get all the various adjustments correct for both so thay can be comparred on an equal basis. When they are correct (optimized?) for both the differences disappear. However, it sounds like achieving this is no trivial matter. As there seems to be a common subjective impression that DTS sounds better for HT it may well be that AVRs are just more DTS friendly and/or that in many cases the DTS track was produced with more care.My advice is to assume that the DTS track is usually going to sound better but sometimes not. So if you rrally care, check them out for each disc and play the one that seems to sound better. Even if there are reasons why one (DTS or DD) is potentially better friom a technical standpoint, the implementation on a particular disc may moot this.
It depends on the mix, choices made my the engineer and whether or not DTS is true DTS or simply derived from (and degraded from) DD. Usually DTS sounds better, but there are times (the Recent Star Wars imports come to mind) when the DTS is so bad as to be an obvious fake.The reasons for DTS superious capabilities have to do with available bandwidth and sampling rates.
As an aside, DTS on DVD has the capability of being better than DTS Laserdisc. It virtually never is because of choices made in the production stage. That is the reason that the DTS Laser of Independence Day still brings close to $100 on eBay.
Where I have a DTS Laserdisc and a DTS DVD of the same film, the sound has always been better on Laser than on the DVD (using the same decoder). As to why the producers get away with this? I dunno. I have heard it hypothesised that LaserDisc buyers were more serious collectors and that DVD buyers are essentially the same people that created the Blockbuster weekend, but that seems a bit facile (and elitist) to me. I just wish they would spend the additional 2 cents and do it right. Or maybe they just doin't want to piss off Dolby Labs?
> > > whether or not DTS is true DTS or simply derived from (and degraded from) DD. < < <Where'd you get this information? This is never the case. The DTS tracks are made from the master tapes, not from Dolby Digital mixes. As to "imports", buyer beware.
> > > As an aside, DTS on DVD has the capability of being better than DTS Laserdisc. It virtually never is because of choices made in the production stage. That is the reason that the DTS Laser of Independence Day still brings close to $100 on eBay. < < <
It brings close to $100 because there is currently no DTS version available on DVD. As soon as FOX gets off of their ass and gives us a DTS version of this movie, watch the laserdisc prices drop like a rock in a pool.
> > > Where I have a DTS Laserdisc and a DTS DVD of the same film, the sound has always been better on Laser than on the DVD (using the same decoder). < < <
They sound better because the laserdisc was transferred at 1.4Mbs, as opposed to the majority of DTS DVDs that have a bitrate of 768 kbs (half the full DTS rate). The original DTS DVDs from Universal (about 10 DVDs) have a bitrate of 1.5Mbs. Because the studios wanted more room for the worthless extra features and languages, DTS "downgraded" its codec to give them room. Today, DVD manufacturing capability now allows for 1.5Mbs DTS bitrates on DVDs along with the Dolby Digital 448kbs 5.1 soundtrack, but half-rate DTS has become the accepted standard. Sad.
DTS derived from DD:
It is my understanding that the rip-off DTS DVD's from wherever in the East did their DTS that way. It is normally derived as you say.DTS lasers other than Independence Day still command more than their DVD counterparts for the sound quality issues. I didn't feel compelled to explain further, but you explained why LaserDisc DTS sounds better than DVD DTS admirably. Yes, it is sad.
You tell us. DTS and DD sound tracks often sound a bit different. Most of the differences are due to the mix and not the inherent capabilities of the two formats.
generally, DTS is superior in my system. However, i have noticed that the choice of DD or DTS can be very title dependent.Sam
Just sounds crisper, more dynamic and better-separated to my ear . . .
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