Do all videos use Dolby Digital (AC-3)? Do they all have 5.1 channels?
Hier finden Sie die aktuellen Infos zur DVD TechnologieMost DVD-Video discs contain Dolby Digital soundtracks. However, it's not required. Some discs, especially those containing only audio, have PCM tracks. It's also possible for a 625/50 (PAL) disc to contain only MPEG audio, but so far MPEG audio is not widely used. Don't assume that the "Dolby Digital" label is a guarantee of 5.1 channels. A Dolby Digital soundtrack can be mono, dual mono, stereo, Dolby Surround stereo, etc.
Related QuestionsDo all Dolby Digital programs provide 5.1 channels?
Dolby Digital FAQ - Frequently Asked Questions About Dolby D...No. Dolby Digital soundtracks can provide anything from mono to full 5.1-channel surround sound. DVDs of movies can even carry multiple versions of the soundtrack that differ in number of channels. A disc might contain a 5.1-channel sound mix with the dialogue in one language, a two-channel mix encoded in Dolby Surround in another language, and a mono track with the director's comments or other supplementary information.
Related QuestionsWhat is Dolby Digital AC-3 encoding?
Cinram - DVD Frequently Asked QuestionsDolby Digital AC-3 is a technology developed by Dolby Laboratories that allows us to store much more CD-quality audio in much less space than traditional CD-audio. Dolby Digital also allows us to present soundtracks in the home that offer a complete surround sound experience, just like at the movie theatre, with left, centre, and right channels, stereo surround channels and a subwoofer.
Related QuestionsWhat is Dolby Digital (AC-3)?
Support - DVD Player F.A.Q.Dolby Digital (AC-3) is a digital sound compression technique developed by the Dolby Laboratories Licensing Corporation. Supporting 5.1-channel surround sound, as well as stereo (2-channel) sound, this technique enables a large quantity of sound data to be efficiently recorded on a disc. However, nowadays, the understanding has become to be Dolby Digital (AC-3) = Dolby Surround = Dolby Digital 5.1.
Related QuestionsHow do I get Dolby Digital (AC-3) audio?
Roman Satellite - installation of DISH TV systems and receiv...Dish Network currently only provides Dolby Digital soundtracks on their home theater Pay-Per-View channels 512-513 on the 119 satellite and PPV channels 520-525 on the 110 satellite. You can look for the DD symbol in the Electronic Program Guide (EPG) to see if the movie is broadcasted in Dolby Digital. These channels also show some movies in their original letterbox format. DISH Network will expand their DD offerings through time.
Related QuestionsDVDWorldUSA.comMost DVDs have a Dolby Digital sound track as standard. The most common 5.1 which means it has 5 separate and discreet sound channels and one channel for the low level or bass effects. Dolby Digital is also available in 6.1, also know as Dolby Digital EX as well as mono, stereo and surround.Related Questions
What is the difference between AC-3 and 5.1 Digital Sound?
IndianWatchdog.com Your Source for information on piracy and...One of the technical specifications of DVD states that every disc must use at least one PCM or Dolby Digital soundtrack to ensure the medium's high quality throughout all its publications. Dolby Digital is a sound format that allows to have up to six different channels of sound, making for a full surround experience of your movies. One of the most common used versions of Dolby Digital is its 5.1 channel implementation.
Related QuestionsWhy should I use MPEG-2 AAC rather than Dolby AC-3?
MPEG Audio FAQ: MPEG-2AAC is a state-of-the-art audio compression algorithm that provides compression superior to that provided by older algorithms such as AC-3. AAC and AC-3 are both transform coders, but AAC uses a filterbank with a finer frequency resolution that enables superior signal compression.
Related QuestionsAre all iO channels transmitted in stereo?style="mso-spacerun: yes"> Dolby Digital? 5.1 Surround?
iO Faq from Yahoo! Cablevision_Digital Forum Optimum Online ...Digital Version 2.1 or 3) at various times according to their programming.style="mso-spacerun: yes"> Some of the video-on-demand premium channels
Related QuestionsWhat's the difference between Dolby Digital (AC-3) and DTS encoding?
Surround FAQBoth methods are what's known as lossy data compression schemes where some information that is masked by more prominent data is thrown away. This is done in order to fit a lot of data through a small data pipe. Dolby Digital (formerly called AC-3) takes 6 channels of 48kHz/24 bit information and compresses it at about an 11 to 1 ratio to an a maximum bit rate of 640kbps, although 384 is the average data rate used. DTS compresses at about a 3 to 1 ratio at an average data rate of 1.4Mbps.
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 QuestionsDoes DVD-V200K have a built-in Dolby Digital (Surround) (AC-3) decoder?
Support - DVD Player F.A.Q.Yes, DVD-V200K does have a built-in decoder with Dolby Digital (Surround) (AC-3) processing; however, the output is only 2-channel stereo. No, from the modem day definition/understanding of a so-called built-in AC-3 decoder. Regardless, you can attach the DVD-V200K to a Dolby Digital-ready (i.e., 5.1-ready) A/V receiver/processor/amplifier to enjoy the benefits of 5.1 channel surround sound audio.
Related QuestionsWhat is DOLBY 5.1?
Dis-Order: F.A.Q.Dolby Digital 5.1 is a new format that has become more popular with the coming of DVD. This audio format offers any number of dedicated channels up to five main channels and one low frequency effect channel. Dolby Digital is the most popular current decoding method for DVDs and offers the following improvements on movie soundtracks: In most ways, all DVD players are Dolby Digital compatible. Most DVDs are compatible with DVD players without a Dolby Digital encoder.
Related QuestionsI have a home theatre system. Can I record a program in Dolby Digital™ 5.1 on my PVR?
Basic Cable Servicelong as the program is being broadcast in Dolby Digital audio, the PVR will record the digital audio. A Dolbly Digital indicator will appear on the Flip Bar and Program Information screen for programs that provide it.
Related QuestionsI am playing a Dolby Digital 5.1 disc so why is the receiver playing back in stereo?
Yamaha Music Australia - Audio VisualFirstly, confirm that your digital connection (optical or coaxial) is securely made between your DVD player and 5.1 channel receiver. The Dolby Digital 5.1 signal is only transmitted out from the digital outputs on the back of the DVD player as shown below. You will not receive the Dolby Digital 5.1 signal if you are using a standard stereo RCA cable connected to the analog audio outputs on the back of the DVD player as shown below.
Related QuestionsWill ProtecTV support Hi-Fi Stereo/Dolby Digital 5.1?
ProtecTV FAQ Frequently Asked QuestionsThe The ProtecTV does not support optical or digital audio. It will support DVD players and Home Theater systems with the standard A/V cables.
Related QuestionsDo I need a DVD player with a built-in Dolby Digital? 5.1 decoder?
HOME ENTERTAINMENT 4 LESSIf you plan to connect the DVD player to a surround-sound receiver that is Dolby Digital ready, then a built-in decoder is necessary. If the receiver has a built-in decoder, the DVD player only needs to have the Dolby Digital passthrough.
Related QuestionsHow can I watch movies in Dolby® 5.1 (Dolby Digital)?
DISH Network -- FAQsWe are able to offer some movies with Dolby 5.1. If your audio visual equipment supports and is set up for Dolby Digital, you will be able to hear those movies in 5.1 surround sound.
Related QuestionsWhat'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).
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