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Topic: Digital Theater Sound

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	Loyd THX Theater
		The reality when the sound stretches roughly is very excellent even if the attractiveness of the large-sized speaker listens at the small volume and afraid of it to the sound effect of the movie.
		The sound pressure level of the screen channel and the surround channel is equally standardized by THX Theater.
		THX is the system which was contrived to replay a sound in the theater faithfully in the standard specifications at the movie theater of the Lucas film Inc. It admits THX mark at the theater which cleared this standard.
	loydtheater.at.infoseek.co.jp /grid2-2.html (2602 words)

	Streem Surround Sound Speakers for your home theater
		Each channel in the digital theater is now capable of reproducing the full sound range (rather than a restricted matrix of the main stereo channels of the early days of surround sound).
		Surround sound speakers as well as center channels in a digital surround environment should now meet virtually the same demands as the front left and front right main speakers.
		The purpose of a surround sound speaker is to immerse the listener within the sound stage to create a realistic 3D environment.
	www.streemspeakers.com /surround-sound-speakers.asp (772 words)

	HowStuffWorks "How Surround Sound Works"
		Disney sound engineer William Garity took separate recordings of each orchestra section and mixed them to produce four distinct audio tracks, which were recorded as optical tracks on a separate reel of film.
		Digital theater sound was introduced to the public with the release of "Jurassic Park" in 1993.
		Digital sound is also broadcast on satellite systems, as well as digital cable.
	electronics.howstuffworks.com /surround-sound.htm/printable (3548 words)

	The Digital Home Company - Surround Sound Systems
		Surround sound is a term used to describe a type of audio output in which the sound appears to "surround the listener" by 360
		In monophonic (mono) sound systems, the signal sent to the sound system is encoded as one single stream of sound — and the sound is usually received through a single speaker.
		Stereo sound enabled listeners to hear some ambiance of the production — for example, a recording of a live concert in stereo where you begin to hear playback from extraneous noises at the performance.
	www.digitalhomecompany.com /Html/SurroundSound.htm (630 words)

	Surround Sound Philosophy 101 (Site not responding. Last check: )
		Electronic sound appeared in 1926 with the coming of the "talkies." Theaters were wired for sound, and a big speaker perhaps set behind the center of the screen did it all.
		The center speaker in movie or home theaters is an attempt to override this problem by placing a speaker in the middle of the screen for dialogue and other sounds which the film maker wants to make sure comes from the center of the screen, no matter where you sit in the theater.
		You will observe how some home theater rear surround speakers are designed to project sound in multiple directions and how the set up manuals will often direct that the speakers be placed to project their sound away from the main viewing location.
	www.plexhometheater.com /articles/surroundsound.html (1088 words)

	DIGITAL THEATER SOUND digital
		It is used for in-movie sound both on film and on DVD, and during the last few years of the format's existence, several releases had DTS soundtracks.
		One of the company's initial investors was, who felt that theatrical sound formats up until the company's founding were no longer state of the art, and as a result were no longer optimal for use on projects where quality sound reproduction was of the utmost importance.
		In theatrical use, information in the form of a modified is optically imaged onto the film, a DTS processor in the projection booth uses this timecode to synchronize the projected image with the soundtrack audio, which is recorded in compressed form on standard media at 1.5 Mbit/s.
	digilander.libero.it /a_digital/Digital_Theater_Sound.html (1553 words)

	Shooting Digital - Chapter One
		Digital recording has better signal-to-noise ratio, and is virtually free from effects like harmonic distortion, wow, flutter, and print-through.
		Occasionally you may find that it?s necessary to have the sound recording separate from the camera, for example when the camera is a long distance away from the actors or in a separate vehicle.
		Another advantage to digital sound is that with digital sound production software like Sound Forge and Pro Tools, you can create a theater-quality soundtrack with surround sound and stereo effects, using your home computer and a little bit of work.
	www.dvfilm.com /chapter.htm (2891 words)

	Some info about Digital Theater Sound (DTS)
		DTS, or Digital Theater Sound, is a motion picture sound system format that stores a digital soundtrack on separate CD-ROM discs.
		The DTS literature does imply that some kind of compression scheme is used on the digital sound data, but it does not indicate what kind of compression is used, or even whether it is lossy or loseless.
		The bottom line is that the original digital soundtrack ends up getting mashed through lots of analog gobbledygook circuitry, which may account for the somewhat less-spectacular-than-expected sound at some DTS-S equipped theaters.
	www-2.cs.cmu.edu /Unofficial/Movies/DTS.html (1025 words)

	70mm And Digital Sound (Site not responding. Last check: )
		The film was not shown with a digital soundtrack, but it was the first all-digitally recorded six-channel soundtrack.
		Cinema Digital Sound presented 70mm versions of the biggest box-office hits of the time: "Dick Tracy", "Edward Scissorhands", "Terminator 2: Judgment Day" and "Days of Thunder" not forgetting the 20 min CDS demonstration film "Sounds Like The Real World".
		Digital Theater Systems has developed a 70mm version of their highly respected 35mm version.
	www.in70mm.com /newsletter/1996/46/70mm/digital_sound.htm (372 words)

	Real Image - Digital audio video film and DTS cinema sound.
		theater owners were hesitant to upgrade to a format in which no Indian films had been made, and filmmakers were reluctant to make films with a sound format that theaters were not yet capable of playing back.
		This history of DTS digital theater sound in India would not be complete without a look at some of the problems the format faced due to local conditions.
		It is heartwarming to know that the number of DTS digital theaters in India is vastly greater than the number of theaters with just optical stereo in the country.
	www.real-image.com /dts/010002.asp (1832 words)

	Howstuffworks "How Home Theater Works" (Site not responding. Last check: )
		Many Dolby Digital units also recognize DTS, but this shouldn't be a big concern because the few movies that are encoded with a DTS track are generally encoded with a Dolby Digital track as well.
		The sound system is what really makes a home theater experience complete, but the first thing you'll probably notice when you sit down in front of a theater setup is the television.
		Digital video signals consist of bits of data, that is, sets of 1s and 0s.
	www.towson.edu /~swartout/cosc311/home_theatre.html (7420 words)

	Wiring Home Theater @SoundResearchlabs.com (Site not responding. Last check: )
		The sound or the video signal will transfer OUT of a device, a DVD player, CD player, VCR etc., and IN to another, surround sound receiver or a video display.
		Digital audio can be decoded into a number of different surround sound atmospheres: 5.1, 6.1, or 7.1.
		In a digital surround sound environment it will deliver the ".1" that you would see from 5.1, 6.1 etc When you see an explosion in a movie the speakers will allow you to hear it but the subwoofer, outputting the LFE's, will allow you to "feel" it.
	www.soundresearchlabs.com /infopage.asp-page-13-extra-1 (1752 words)

	Digital Vision & Sound
		A digital 3-line comb filter converts the analog video signal to digital, then holds three lines in memory for comparison during the “combing” process.
		Digital Signal Processing (DSP): A manipulation of a sound signal to replicate the acoustics of a club, hall, church, stadium, theater, etc.
		Digital Output: This is the coaxial or fiber-optic output that can pass digital signals to outboard D/A converters, surround processors or digital recorders.
	www.digitalvisionandsound.com /technology.htm (1122 words)

	Michaels AV - Home Theater - Sound
		Also realize that noise can be a problem—not only the distraction of traffic and other external sounds, but also the broadcasting of unwanted noise to others in your home—so you may wish to have your home theater soundproofed.
		Dolby Digital is a 6-channel format, referred to as "5.1-channel." All 6 channels are discrete, and 5 are full-bandwidth; the ".1" refers to a subwoofer channel, which supplies Low Frequency Effects (LFE).
		THX Surround EX takes the Dolby Digital signal and creates another additional matrixed channel, which is then sent to one or two surround speakers, thus giving 6.1 or 7.1 sound.
	www.michaelsav.com /theater_sound.htm (661 words)

	Surround Sound
		Surround Sound is the term commonly used to describe a system in which the sound output appears to surround the listener — that is, the technology gives the impression that sounds are coming from all possible directions.
		Surround sound is a term used to describe a type of audio output in which the sound appears to "surround the listener" by 360 degrees.
		At the time, stereophonic sound, a concept new to the public, was heavily promoted along with new wide-screen formats by a film industry feeling threatened by the rapid growth of television.
	www.webopedia.com /DidYouKnow/Computer_Science/2005/surround_sound.asp (1982 words)

	Digital TV: A Cringley Crash Course -- Digital Vs. Analog
		Digital audio recordings on CD have a wider frequency range, finer sampling, and they won't wear down with age (it stays perfect until something like a scratch damages the data).
		It can include up to 5.1 channels of sound: three in front (left, center, and right), two in back (left and right), and a subwoofer bass for a sound you can feel (that's the.1 channel).
		Sound on digital TV will be "CD quality" with a range of frequencies lower and higher than most of us can even hear.
	www.pbs.org /opb/crashcourse/digital_v_analog/sound.html (225 words)

	Digital Home Theater - Home Theater & Electronics
		To help you navigate it all, here are a few of the digital home theater advice sites we recommend for digital home theater sound, digital home theater projectors, and digital home theater style.
		Dolby is one of the leading names in digital home theater sound, and a visit to www.dolby.comcan provide you with some basic information on digital theater sound equipment and accessories.
		The cost of digital home theater projectors has dropped significantly in recent years, and more people are discovering the terrific image size and quality that digital movie projectors can provide.
	www.homefurnish.com /hometheaterelectronics/digitalhometheater.aspx (494 words)

	Howstuffworks "How Movie Sound Works"
		The first commercial use of digital sound on a large scale debuted with the release of "Jurassic Park." It is called DTS, an acronym for Digital Theater Systems, the name of the company that patented the process.
		And, since the sound is not actually encoded on the film, movie-goers don't hear that annoying "pop" that sometimes occurs when the audio pickup encounters a splice.
		But the ease of use, relatively low cost and the simple fact that many theaters have already made the investment in the format have combined to keep DTS a viable alternative to the sound-on-film digital formats.
	entertainment.howstuffworks.com /movie-sound3.htm (542 words)

	Dec 98 issue of Sound Off
		Added to this are users dialing in sound pressure levels exceeding those of a air raid siren (at two feet away) and the result is something never heard in a real life.
		Yes, the sound may be awful, but it's a result of abusing the technology (including the recording process) and not a problem with the technology.
		Not only did I pioneer Home Theater sound but I also used a very rough form of double-blind testing to prove that my inexpensive Heathkit amplifier was as good as a Fischer or H.
	www.digital-recordings.com /soundoff/dec_98/editorial.html (973 words)

	Movieville - Moviegoing in Los Angeles
		Movie theater sound plays back much the way your stereo at home does: it's fed a signal, which is puts into amplifiers and crossovers (so high sounds go to tweeters and low sounds go to woofers and subwoofers) and then it's played through speakers.
		Mono sound - just one channel, standard before about 1977 - was achieved with that wiggly white line to the left of the picture.
		It seems to have the best sound (all systems are digital, yes, but encode and decode in different ways, which can effect the nature of the sound reproduction) and it's evidently the sturdiest system, less prone to problems and dropouts than the other two.
	www.movieville.com /theaters/tech/soundformats.html (1079 words)

	DVD sound
		It is the 5.1 sound aspect that's most important, as it allows you to reproduce the film's soundtrack in your own home, exactly as it was heard in the theater.
		If you have the choice between an analog or digital connection (for this to be true, the source will always have to be digital), it is important to focus on the fundamental processing differences between analog and digital connections.
		Making a digital connection transfers the digital signal from the source to another piece of processing equipment (such as a receiver, a pre/pro amp, or an outboard DAC) to be converted to an analog signal.
	www.geocities.com /columbiaisa/dvd_sound.htm (2206 words)

	3DsoundSurge Reviews: MidiLand Audio Digital Station - ADS-2000 - Page 3 (Site not responding. Last check: )
		If the digital connection is originating from the sound card then you really don’t need to worry about using the analog input as the sound card SPDIF out should also send PCM stereo audio which will let you send game audio and music through to the ADS-2000 as desired.
		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.
		The bitrate is 64 kbps to 448 kbps, with 384 being the normal rate for 5.1 channels and 192 being the normal rate for stereo (with or without surround encoding).
	www.3dsoundsurge.com /reviews/ADS-2000/ADS2000-p3.html (1130 words)

	George Friderick Handel's Messiah DTS Version
		In the theater, Dolby Digital is encoded directly on the film between the film sprockets.
		Dolby Digital soundtracks can be from one to six channels, with the vast majority of the Dolby Digital releases NOT being discrete six-channel surround sound.
		DTS DVDs are superior in sound quality to their Dolby Digital counterparts.
	www.messiahcd.com /DTS_Version/dts_version.html (625 words)

	Rotel manufactures home theater, hi fi and multi-room audio systems for audiophiles and videophiles including stereo ...
		Rotel manufactures home theater, hi fi and multi-room audio systems for audiophiles and videophiles including stereo receivers, surround sound processors, DVD players, multi-channel amplifiers and custom installations.
		In fact, DTS (from the company's name -- Digital Theater Sound) is a technically advanced method of coding six channels of audio onto a CD-like audio disc.
		Rather than use the film itself to carry digital audio information (the way Dolby Digital does), DTS used a CD-ROM disc synchronized to the film to carry all the audio information.
	www.rotel.com /html/dts.htm (670 words)

	Ultimate AV: Yamaha YSP-1 Digital Sound Projector Home Theater Speaker System
		Yamaha's new YSP-1 Digital Sound Projector includes an audio processor, amplifiers, and speakers in a 40- by 8- by 5-inch enclosure that can sit above or below a flat-screen monitor and create a complete surround soundfield without a bunch of speakers around the room.
		Connections include two pairs of analog inputs and three digital inputs (one coax, two optical) as well as a composite video output so the onscreen display can be viewed on your video screen.
		Yamaha's use of the term "Sound Projector" refers to the YSP-1's special ability to focus and bounce sound off a room's walls to generate surround effects.
	guidetohometheater.com /speakersystems/605yamaha (1405 words)

	Installing Your Home Theater: The Plain English Guide to Installation Part 3 - Guides by Digital Trends
		After setting up most of your new home theater system you are without a doubt anxious to get the DVD player going.
		Since many of these films on DVD are presented with mono or simple stereo sound I by-pass the digital sound and run the audio through the receiver set in ‘Theater’ mode.
		In both cases the sound is the best possible and will work for all DVD players.
	reviews.digitaltrends.com /guide5.html (1231 words)

	SURROUND SOUND LISTENING
		The 5.1 surround sound mix uses the full range of the five channels, with an additional low-frequency channel, to offer unparalleled fidelity both to the sound of the performance and the acoustic in which it was recorded.
		Digital DTS Surround means the original recording was made using the DTS system, that the recording was processed with DTS, or possibly both.
		Using their Theater Grand Processor it is possible to replicate, in a very realistic fashion, surround sound from stereo recordings.
	classicalcdreview.com /surround.htm (3998 words)

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