What's the difference between Dolby Surround, Dolby Pro Logic and Dolby Digital?
Surround Associates - Specializing in all aspects of surroun...These are all encoding techniques to allow a multichannel signal to be delivered to the consumer. The main difference between them is the number of channels and how the signal is decoded. While Dolby Surround and Pro Logic are closely related (with the main difference being the fact that Surround uses a passive decoder while Pro Logic uses an active one), Dolby Digital is a completely different, more sophisticated technique and not compatible with the others.
Related QuestionsSurround FAQThese are all digital encoding techniques to allow a multichannel signal to be delivered to the consumer. The main difference between them is the number of channel and how the signal is decoded. While Dolby Surround and Pro Logic are closely related (with the main difference being the fact that Surround uses a passive decoder while Pro Logic uses an active one), Dolby Digital is a completely different, more sophisticated technique and not compatible with the others.Related Questions
What's the difference between Pro Logic?, Pro Logic II, and Dolby? Digital 5.1?
Sherwood Europe | FAQDolby Pro Logic is a matrix decoder that decodes the four channels of surround sound that have been encoded onto the stereo soundtracks of Dolby Surround program material such as VHS movies and TV shows. Dolby Surround (or Dolby matrix!) is a matrix encoding process that in essence "folds" Left, Center, Right, and Surround channels onto stereo soundtracks. A Pro Logic decoder "unfolds" the four channels on playback (without a Pro Logic decoder, the encoded program plays in regular stereo).
Related QuestionsWhat is the Difference between Dolby Pro-Logic and Dolby Digital?
Welcome to JVCUAE.COMBoth are decoding systems for home theater sound. Dolby Digital is the successor to Dolby Pro-Logic. Pro-Logic is actually four channels of sound that is reproduced through five speakers. The four channels are: left, center, right and the left/right surround channels. In Pro-Logic mode the rear speakers are in mono. Pro-Logic is typically found on an analog source Ex: VCR tapes.
Related QuestionsCan I hear Dolby Digital programs over a regular stereo or Dolby Surround Pro Logic system?
Frequently Asked Questions about DolbyDigitalYes, you can use most of the new Dolby Digital program sources with your current playback system, because they incorporate Dolby Digital decoders and provide conventional analog stereo outputs. However, with many DVD-Video players, digital cable set-top boxes, and other sources, you need a separate multichannel Dolby Digital decoder to experience the thrilling 5.1-channel surround sound used on many Dolby Digital programs.
Related QuestionsHow does 5.1-channel Dolby Digital differ from Dolby Surround?
Dolby Digital FAQ - Frequently Asked Questions About Dolby D...The technology behind 5.1-channel Dolby Digital provides two surround channels, instead of the one from Dolby Surround, for more precise localization of sounds and a more convincing, realistic ambience. Also, Dolby Digital's surround channels cover the entire audible range (20 Hz-20,000 Hz), whereas the range of Dolby Surround's single surround channel is limited (100 Hz-7,000 Hz). The increased range of Dolby Digital further heightens realism and gives sound mixers more creative freedom.
Related QuestionsCan you explain this Dolby Digital, Dolby Surround, Dolby Pro Logic, DTS stuff in plain English?
Almost every DVD contains audio in Dolby Digital format. DTS is an optional audio format that can be added to a disc in addition to Dolby Digital audio. Dolby Digital and DTS can store mono, stereo, and multichannel audio (usually 5.1 channels). Every DVD player in the world has an internal Dolby Digital decoder. The built-in 2-channel decoder turns Dolby Digital into standard analog stereo audio, which can be fed to almost any type of audio equipment (receiver, TV, boombox, etc.
Related QuestionsHow do I convert my current Dolby Surround Pro Logic system to 5.1-channel playback?
Frequently Asked Questions about DolbyDigitalIf your current system consists of separate audio components, you will need a 5.1-channel Dolby Digital decoder and a six-channel preamplifier (available separately or combined in one convenient unit). The preamplifier's outputs will plug into your existing power amplifiers. See Figure 12-1. If you have an older, integrated A/V receiver with Dolby Surround Pro Logic that does not provide external inputs to its built-in amplifiers, you have two choices.
Related QuestionsHow do I connect the digital box to my home theatre with a Dolby Pro-Logic receiver?
Cogeco - Customer Support - Digital Cable TV support - FAQ -...Please click here for a detailed downloadable diagram. (The file size is 94 KB and the approximate download time is two seconds for a 56K modem). The diagram for download is in PDF format and requires the Adobe Acrobat Reader for viewing and printing.
Related QuestionsWhat is Dolby Digital Surround?
PlayUSA.com: DVDsInitially known as simply Dolby Surround, this is an audio mixing technique that bolts on a rear channel and a centre channel onto a standard two-channel signal. With a two speaker sound system, these extra channels will be automatically mixed into the audio streams for the left and right speaker
Related QuestionsDVD HorrorThis is an audio mixing technique that bolts on a rear channel and a centre channel onto a standard two-channel signal. With a two speaker sound system, these extra channels will be automatically mixed into the audio streams for the left and right speakerRelated Questions
Sherwood Europe | FAQDolby Digital Surround EX provides a third surround channel on Dolby Digital movie soundtracks. The third surround channel can be decoded at the home viewer's option for playback over surround speakers located behind the seating area, while the left and right surround channels are reproduced by surround speakers to the sides. To maintain compatibility, the back surround channel is matrix-encoded onto (or from!) the left and right surround channels of an otherwise conventional 5.Related Questions
What's the big deal about Dolby Pro Logic IIx processing? Isn't Dolby Digital better?
Receivers: Frequently Asked QuestionsDolby Digital is a much more advanced surround technology than Dolby Pro Logic IIx, yes, but it's only available on high-definition video discs, DVDs, HDTV broadcasts, and some digital satellite programs and video games. Dolby Pro Logic IIx is designed to help you get more convincing multichannel sound from Dolby Surround-encoded soundtracks, like those found on many VHS tapes and stereo television broadcasts. Dolby Pro Logic IIx processing provides 6.1- or 7.
Related QuestionsMy receiver is Dolby Pro Logic*, does this mean I can't listen to DVD's in Dolby Digital* 5.1?
DVD FAQWhile you won't get the same experience listening to Dolby Digital 5.1 audio on a Dolby Pro Logic system, you will notice a dramatic difference between listening in Dolby 5.1 and 2.0. Of course to take the fullest advantage of 5.1 you'd need a Dolby Digital receiver. Put simply, in order to fit all the information on one side of the DVD, the technology utilizes two layers of information. That delay is the laser reaching the end of layer 1 and finding layer 2.
Related QuestionsWhat is the difference between Dolby® Pro Logic®, Dolby Digital (AC-3® ) and DTS® ?
harman/kardonDolby Pro Logic takes its information from a two-track-stereo format. When a movie is recorded in Dolby surround, the Stereo soundtrack is recorded on the tape. Certain sounds (the surround-channel information) are encoded. Inside the Dolby Pro Logic receiver, the Pro Logic circuitry decodes the surround information and sends it to the rear channels. The center channel is derived by removing what is equal or nearly equal in the left and right channels and sending it to the center.
Related QuestionsThe disc says Dolby Digital. Why do I get 2-channel surround audio?
Hier finden Sie die aktuellen Infos zur DVD TechnologieSome discs (many from Columbia TriStar) put 2-channel Dolby Surround audio on track one and 5.1-channel audio on track two. Unless you intervene, the player will play the default 2-channel track. Use the audio button on the remote or select the 5.1 track from the menu. (Note: The Sony 3000 has a feature to automatically select the first 5.1 track.)
Related QuestionsWhat is Surround Sound? Pro Logic?
Hi Fidelity Systems FAQ - WikiFAQ - Answers to Frequently As...In an effort to make movie soundtracks more dramatic and engaging, Dolby Labs created a signal encoding which encodes more than just two channels of audio onto the stereo signal. Many popular receivers and home-theater systems include the required circuitry to decode these signals. These components are referred to as Pro Logic, Dolby Pro Logic, or Surround Sound components. Very few audio recordings contain this encoding, but it is very common with movie soundtracks and some network TV programs.
Related QuestionsWhat is Dolby Surround, Dolby Digital, and DTS?
Laserdisc Information Page - FAQAll of these are methods of creating a more convincing soundfield that seems to "surround" the viewer (at least on Laserdisc, see explanation on Dolby Digital). They require more than 2 speakers. The most widespread surround sound system is Dolby Surround. Dolby surround is an analog system that decodes 2 channels into 4 channels, Left, Right, Center and Surround. The center channel is used to anchor dialog to the screen and the surround channels are used to create ambiance.
Related QuestionsWhat is the difference between DD and Dolby Surround?
Unofficial Xbox FAQDolby Surround (or ProLogic) is an analog audio encoding method that provides four-channel surround sound (left front, right front, center, rear). The separation between the channels is not as well-defined as with Dolby Digital and the single rear channel minimizes the effect of 'positional audio'. That is, it's very difficult to make something sound like it's coming from behind your left shoulder. With Dolby Digital, such positional information is directly encoded in the digital signal.
Related QuestionsWhat's the difference between Dolby Digital and DTS?
Sherwood Europe | FAQDolby Digital is 16 bits of PCM Linear Tracking that is compressed. DTS is 20 bits of Master quality audio that is not compressed. 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. This is necessary in order to fit the typical 5.
Related QuestionsWhat is Dolby Digital technology?
Dolby Digital FAQ - Frequently Asked Questions About Dolby D...Dolby® Digital technology is an advanced form of digital audio coding that makes it possible to store and transmit high-quality digital sound far more efficiently than was previously possible. First used in movie theaters in 1992, Dolby Digital technology is the result of decades spent by Dolby Laboratories developing signal-processing systems that exploit the characteristics of human hearing.
Related QuestionsWhat is 5.1-channel Dolby Digital?
Dolby Digital FAQ - Frequently Asked Questions About Dolby D...Dolby Digital programs can deliver surround sound with up to five discrete full-range channels: Left, Center, Right, Left Surround, Right Surround-plus a sixth channel for powerful low-frequency effects. As it needs only about one-tenth the bandwidth of the others, the LFE channel is referred to as a ".1" channel (and sometimes erroneously as the "subwoofer" channel).
Related QuestionsDo all DVDs have Dolby Digital soundtracks?
Dolby Digital FAQ - Frequently Asked Questions About Dolby D...Discs in countries such as the US that use the NTSC broadcast TV standard must provide at least one soundtrack in either of two formats: Dolby Digital or PCM (the format used on CDs). In countries using the PAL TV standard, including much of Europe, the discs must include at least one soundtrack in any one of three formats: Dolby Digital, PCM, or MPEG. Due to these requirements and the options they permit, not all discs may have Dolby Digital soundtracks.
Related QuestionsWhat is Dolby digital?
Lowyat.NET -> FAQ for Edifier SpeakersDolby digital is a sound format featuring six-channel sound with separate left and right sounds and a low frequency-effects channel. Dolby digital is a standard when it comes to sound formats for DVDs, set-top boxes, etc.
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