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Topic: Dolby vs DTS

	Dolby Digital vs. DTS@Everything2.com
		DTS - Digital Theatre Systems - is another compression and encoding system that debuted in 1993 with the film Jurassic Park, with the personal endorsement (and financial backing) of director Stephen Spielberg; all of his subsequent films and most of his previous films are commercially available with DTS soundtracks.
		DTS was the first sound system to be completely digital from the encoding stage: for theatre applications the soundtrack is recorded onto two CDs that are played on hardware in the theatre, synchronised with the image using a time code along one edge of the film.
		Dolby goes on to say that the previously-mentioned sine wave plot of DTS' LFE channel response was compared to the result of the same measurement taken from the Two Against Nature DVD, showing the two as identical (the combined plots were previously shown separately in the paper).
	www.everything2.com /index.pl?node_id=912409 (6516 words)

	Dolby Laboratories - Wikipedia, the free encyclopedia
		Dolby Stereo or simply Dolby Analog is the original analog optical technology developed for 35 mm prints and is encoded with four sound channels: Left/Center/Right (which are located behind the screen) and Surround (which is heard over speakers on the sides and rear of the theatre) for ambient sound and special effects.
		Dolby Analog SR or simply Dolby SR (Spectral Recording) is a professional four-channel noise reduction system in use since 1986, which improves the dynamic range of analog recordings and transmissions by as much as 25 dB.
		Dolby E is a professional coding system optimized for the distribution of surround and multichannel audio through two-channel postproduction and broadcasting infrastructures, or for recording surround audio on two audio tracks of conventional digital video tapes, video servers, communication links, switchers, and routers.
	en.wikipedia.org /wiki/Dolby (974 words)

	DTS - Wikipedia, the free encyclopedia
		A modified time code is optically imaged on the film itself, and the DTS processor uses this to synchronize the soundtrack audio which is recorded in a compressed form on standard CD-ROM media (1.5 megabits/second).
		DTS was first shown in the cinema with the release of Jurassic Park in 1993.
		DTS is also the name often used for the 'Coherent Acoustics' codec which is used on DVDs, CDDAs and in wave files.
	www.encyclopedia-online.info /DTS (358 words)

	Dolby vs DTS -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-28)
		The Dolby Digital vs DTS debate remains a long standing, insoluble debate among (Television and video equipment designed to reproduce in the home the experience of being in a movie theater) home theater enthusiasts and "Audiophiles" on the web (via arenas such as (additional info and facts about usenet) usenet groups) and elsewhere.
		Debators compare the two audio (additional info and facts about codec) codecs, (additional info and facts about Dolby Digital) Dolby Digital and (Acute delirium caused by alcohol poisoning) DTS, arguing that one or the other 'sounds' or 'is' inherently better, yet consensus is rarely reached.
		For 6-channel surround sound, Dolby Digital (additional info and facts about bitrate) bitrates generally range from 320 kbit/s to 480 kbit/s while DTS (additional info and facts about bitrate) bitrates range from 768 kbit/s to 1.5 Mbit/s.
	www.absoluteastronomy.com /encyclopedia/d/do/dolby_vs_dts2.htm (162 words)

	Articles - Dolby Digital (Site not responding. Last check: 2007-10-28)
		Dolby Digital EX is very similar in practice to Dolby's earlier Pro-Logic format, which utilized Matrix technology to add a center and single rear surround channel to stereo soundtracks.
		Dolby Digital SR-D cinema soundtracks are optically recorded on a 35mm release print using sequential data blocks placed between every perforation hole on the sound track side of the film.
		Dolby is part of a group of organizations involved in the development of AAC (Advanced Audio Coding), part of MPEG specifications, and also considered the successor to MP3.
	www.digital-voicerecorders.net /articles/Dolby_Digital (729 words)

	DVD Audio Basics
		Dolby Digital is popular for a number of reasons, not the least of which is the fact that it is an extremely compact way of storing up to 6 channels of audio.
		Dolby Digital is simply the method used to compress and carry the audio signal, and can carry anything from one mono channel to two stereo channels to six channels of surround audio.
		DVD is a wonderfully scalable technology which caters for many budgets and many sound setups and allows you to progressively expand your audio setup as your budget and other constraints allow.
	www.michaeldvd.com.au /Articles/AudioBasics/AudioBasics.asp (2709 words)

	eaDHome - What's the difference between Dolby Digital and DTS?
		Dolby Digital and DTS are similar in that they are both digital lossy audio coding technologies, which means they use “perceptual” data reduction techniques that are based on the characteristics of human hearing to mask the process, thereby preserving high fidelity sound.
		The main difference is that Dolby Digital is designed to handle anything from mono to full 5.1-channel sound formats, and typically runs at data rates of 192 to 448 kbps depending on the number of audio channels and the application.
		DTS was originally designed for a data rate of 1411 kbps, and typically runs at data rates of 754 or 1509 kbps depending on the data capacity available.
	www.eadhome.nl /english/solutions/home/surround/dolby_digital_vs_dts.html (249 words)

	DVDFILE.COM: Dolby Digital Vs. DTS - Dolby Statement
		DTS and Dolby Digital versions of a DVD are often released at different times.
		Dolby Digital soundtracks are sometimes changed during mastering -- some, most notably Saving Private Ryan and other Dreamworks titles, have had portions of the LFE signal redirected to other channels to help improve compatibility for stereo listeners.
		The Dolby Digital version of The Haunting DVD was the original Surround EX soundtrack, while the later DVD with DTS ES was a new mix to add the separate Bs channel.
	www.dvdfile.com /news/special_report/features/dolby_vs_dts/dolby.html (1271 words)

	Dolby vs DTS 5.1 Surround Sound: Which delivers better audio quality?
		Dolby Digital and DTS Digital Surround are both 5.1 surround sound systems that encode six discrete audio channels into blocks of data in their respective Dolby or DTS bit streams.
		The real Dolby vs DTS controversy is there because when dealing with different formats that use different coding techniques to deliver practically the same end result, it is not easy to define what constitutes better quality sound.
		Dolby Digital is at times referred to as Dolby SR-Digital in moviehouse applications in view that a movie with Dolby Digital soundtrack would normally still come with a conventional SR (Spectral Recording) Dolby analog soundtrack as shown in the diagram.
	www.practical-home-theater-guide.com /dolby-vs-dts.html (2611 words)

	3DsoundSurge: Surround Formats on DVDs - Page 7 (Site not responding. Last check: 2007-10-28)
		In the fight between DTS and Dolby in the home theater market there is no question Dolby does and will continue to dominate when it comes to number of DVD titles that uses a DD 5.1 soundtrack.
		Dolby Digital is the more efficient or aggressive compression algorithm of the two since it removes up to 90% or about 3 times as much as DTS Digital Surround.
		Dolby claims its algorithms are simply more efficient than DTS and that there is no audible quality loss compared to the original PCM sound track.
	www.3dsoundsurge.com /features/articles/SurroundFormats/SurroundFormats-p7.html (1496 words)

	AWH: DVD Movie Reviews
		However the DTS version's sound effects and directional effects placement is outstanding there is definitely some difference in the mixing between these two versions.
		Why the DTS DVD version doesn't default to the DTS soundtrack is a mystery to me. Once you select which soundtrack you wish to hear there doesn't seem to be any way to get back to that menu without reinserting the disc in the player.
		Dolby Digital on laser disc is 384 kb/s and Dolby Digital 5.1 on DVD is either 384 kb/s or 448 kb/s.
	members.accessus.net /~090/reviews/flintsto.html (816 words)

	Forums - Dolby Digital vs. DTS
		I find the difference is the clarity of speech, in Dolby digital IMO the dialogue is a bit muffled with the background but with DTS the voices are a LOT clearer.
		Dolby Digital is THE default muli-channel format, and as such has made concessions to expense and quality.
		DTS has better channel integration, when a voice comes from the center channel it comes from the voice's onscreen location (slightly right/slighty left) not straight from the center channel speaker, etc.
	www.rottentomatoes.com /vine/showthread.php?p=5329271 (1682 words)

	VideoHelp.com :: View topic - which DTS vs Dolby Digital?
		But, DTS and DD have their arguments as to why compression is needed and both are valid.
		DTS 5.1 runs at 1536 kbps and that is 3.5 times the bitrate of highest DD 5.1 encoding (448 k).
		Having "DTS only" DVD's is possible and 100% playable (on DTS compatible systems of course) but does not conform to the standard you refer to thereby spells trouble commercially.
	www.videohelp.com /forum/viewtopic.php?t=236800 (2233 words)

	ipedia.com: Dolby Laboratories Article (Site not responding. Last check: 2007-10-28)
		Dolby Laboratories, Incorporated (Dolby Labs) is a company specializing in audio compression and reproduction.
		Dolby Digital was first used on the 1992 film Batman Returns.
		The format was later adopted as part of the DVD specification.
	www.ipedia.com /dolby_laboratories.html (288 words)

	Dolby vs. dts implementaion in various manufacturers - AVS Forum
		The respective alogorithims for Dolby and DTS are submitted by the various silicon DSP suppliers and then they are certified by Dolby or DTS..
		Dolby and DTS do their own certification of the AVR and its DSP as to make sure they meet their minimum design specifications..
		I, too, prefer dts with the perceptions that the dynamic range is larger and that the sound has greater detail.
	www.avsforum.com /avs-vb/showthread.php?p=5482718 (2614 words)

	Horrordvds.com Forum - Haute Tension: Dolby Digital vs. DTS
		Anchor Bay UK puts DTS tracks on the majority of their DVD releases these days (many are mono tracks) since they have some type of license with the company.
		DTS on DVD has completely unimpressed me. Yes, it sounds good, but often no better than the DD5.1 track.
		In order to hear DTS the way it's suppose to be heard you need special speakers and they need to be set up in a special way, then it's better than Dolby.
	www.horrordvds.com /vb3forum/showthread.php?t=24982 (823 words)

	Hi Fi Writer - Dolby Digital vs DTS
		Dolby says that you can't draw any conclusions from the raw compression figures because it all depends on how well the codec (compression/decompression system) is designed.
		Dolby also says that the DTS 0.1 channel rolls off the bass by a few dB at the top end of the range.
		Dolby says DTS tracks often play louder than Dolby Digital ones due to the latter's dialogue normalisation feature (which is often set to reduce the playback level by 4dB) and an alleged 0.6dB boost in DTS's encoding of broadband material.
	www.hifi-writer.com /he/dolbydts/dolbydts.htm (736 words)

	bit-tech.net Forums - Dolby digital vs DTS
		I have yet to hear a DVD with a DTS Track that is clearly better than the Dolby Track.
		On the DVD's I have that have both audio formats, I (and this is subjective) feel that the DTS had a bit more Bass, but that's about it.
		I use to actively seek out DVD's with DTS, but I rarely bother now and stick with DD I also read once that DTS tracks are usually louder (i.e mastered at higher sound levels) than their AC3 counterparts.
	forums.bit-tech.net /printthread.php?t=28499 (366 words)

	[No title]
		In theory DTS is less compressed and I believe is mixed down at a higher bit rate than DD so it should be better sounding.
		I have enjoyed DTS but have I found it to be better, no just different in some cases.
		I have a few concert DVD's that the DTS mix blows away the DD mix but it is my thought that it is just the mix, not the playback format.
	www.hometheaterfocus.com /forum/shwmessage.aspx?ForumID=25&MessageID=69 (487 words)

	3DsoundSurge Reviews: Jazz Speakers DE-005 and DE-006 Digital Audio Decoders - Page 6 (Site not responding. Last check: 2007-10-28)
		Dolby Pro Logic is an enhancement to Dolby Surround and uses a four-channel mix of left, center, right and surround channels, which has the same limited frequency response as Dolby Surround.
		AC-3 is the audio code decoder in the Dolby Digital sound system which eliminates the data people cannot hear while trying to maintain all the data that people can listen to from the original PCM with a sample rate of 48 kHz at up to 24 bits.
		DTS (Digital Theater Systems) Digital Surround is an optional multi-channel (5.1) digital audio format, using lossy compression from PCM at 48 kHz at up to 20 bits.
	www.3dsoundsurge.com /reviews/JazzDE/JazzDE-p6.html (1590 words)

	Dolby Digital vs. DTS: A Guide to the Strengths of the Formats — Audioholics Home Theater Reviews and News
		With the birth of Dolby Surround in movie theaters, it was only a matter of time before we the consumers would reap the benefits of this trickle down technology into the consumer A/V marketplace.
		Dolby argued that its name recognition, familiarity with the movie industry, and the choice of its system for audio coding in the new DTV standard made it a logical choice for DVD as well.
		However, both DD and DTS will boast data rates, efficiency, etc, but what actually translates to better sound is a very ambiguous matter as there are more factors involved here that goes beyond the scope of this article.
	www.audioholics.com /education/surround-sound/dolby-digital-vs-dts-a-guide-to-the-strengths-of-the-formats (1017 words)

	rllmukforum.com > 5.1 Dts Vs 5.1 Dolby Digital (Site not responding. Last check: 2007-10-28)
		DTS is much better if your listening through a decent set of speakers.
		I heard both on various dvd's on a 20k+ setup, DTS was better in some DD5.1 was better in others.
		But mostly DTS is the better format, mainly for the reasons given about it having more punch and better seperation across the soundfield.
	www.rllmukforum.com /lofiversion/index.php?t80589.html (1580 words)

	GameSpot Forums - General Hardware Discussion - Dolby Digital vs. DTS
		The reason why some peopel believe that DTS is better, is because more often they include the untouched theatrical mix on the DTS track, while the DD track is often adjusted so that it willl fold down to stereo, or even mono for playback on TV speakers.
		Sometimes DTS does have better bass response and or dynamics, but that is the rare case.
		And the Dolby Digital track should be even better on a HD format since it's taken from the Dolby Digital Plus core and starts off with a much higher bitrate than the DVD version.
	www.gamespot.com /pages/forums/show_msgs.php?topic_id=25667416 (1159 words)

	Designtechnica Forums - Dolby Digital Vs DTS
		Generally DTS is the higher quality standard, but the amount of improvement over DD largely depends on the quality of your speakers and receiver.
		DTS has much more of a presence, especially with the lower freqs.
		this is how i listen to a dts dvd on my system; even though it's matrixed, it's still much better than a dd/dd:ex signal.
	forums.designtechnica.com /showthread.php?t=6293 (595 words)

	Reader Comments - THX to Certify Video Games - Xbox
		Whether it offers audio encoded in Dolby or DTS, a film or game can be branded with the THX logo if it meets Team Lucas' secret "standards".
		In my testing (and i've tested quite a few DVDs) DTS audio has around 20db greater dynamic range that Dolby(the Loud sounds are louder and more separate and defined against the Quiet sounds.
		With our home theater setup, DTS is always preferred, but no where does it have an option for a THX audio track, only DD or DTS (or stereo, ick).
	news.teamxbox.com /comments/4923/THX-to-Certify-Video-Games (1513 words)

	DTS vs. Dolby Digital. The subwoofer. (Site not responding. Last check: 2007-10-28)
		Dolby rubbishes DTS but to me Dolby's arguments are as bad as their sound.
		Consider the possibility that both players can "Hear" DTS on the DVD disc, but DVD Player 1 is unable to pass the message on to the receiver and so you don't hear it from the speakers.
		Dolby digital is on by default, and on 99.9% of players, DTS is NOT turned on from the factory.
	forum.ecoustics.com /bbs/messages/3/3746.html (7252 words)

	Emuforums.com - Dolby Digtal VS DTS
		From what I heard DTS can output more frequencies than dolby digital can (higher and lower), so it probably would sound better but I haven't heard it before.
		But DTS isn't used as much as dolby digital.
		The main reason is because DTS uses a lower compression rate if i remember correctly.
	www.ngemu.com /forums/printthread.php?t=39701 (425 words)

	The CHUD.COM Message Boards - My weekly stupid question!!!
		He has a receiver with a Dolby Digital and a DTS decoder.
		the dts tracks are usually the better tracks...sometimes you may run across a dolby digital track thats close, but the dts tracks are always better...hope that helps...
		DTS has the better reputation, but the difference really is pretty minute on many discs.
	www.chud.com /forums/printthread.php?t=22998 (362 words)

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