Dolby Digital Plus surround sound is an improvement on the super-popular Dolby Digital/Dolby Digital EX system. Dolby Digital Plus improves on Dolby Digital and EX by
Increasing the bit rate: Dolby Digital Plus can be encoded with up to 6144 Kbps (kilobits per second) of data, where Dolby Digital tops out at 640 Kbps. (448 Kbps is the maximum from current formats, however.) All else being equal, higher bit rates mean better sound quality because the audio signals need to be compressed less.
Improving the encoding: Dolby Digital Plus does a better job of encoding (or digitizing and compressing) sound. Therefore, at a given bit rate, you get better sound quality. Combine this with the vastly increased bit rate of Dolby Digital Plus, and you get great sound!
Adding more channels: Dolby Digital Plus can provide up to 13.1 discrete channels of sound (14 total speakers, including the subwoofer). You can really envelop yourself in the action with 14 speakers!
Providing backward compatibility: Dolby Digital Plus decoders can automatically downconvert your sound to the older Dolby Digital formats. So you can play Dolby Digital Plus programs on your older system without having to buy new hardware. And when you do upgrade, you gain all the advantages just mentioned.
One drawback of Dolby Digital Plus is that the very high bit rates it supports overwhelm the digital audio connections that are traditionally used to connect DVD players or set-top boxes to your receiver. If all you have on your receiver is coaxial or optical digital connections, you’ll still be able to listen to Dolby Digital Plus, but you’ll have to get by with using analog audio connections or by letting your DVD player downconvert to 640 Kbps Dolby Digital.
If you have a newer receiver with an HDMI 1.3 connection, you won’t have this restriction and will get the full Dolby Digital Plus experience because the decoded signals can be carried as multichannel PCM over these high-bandwidth interfaces without sonic compromise.
Some receivers have HDMI connections but still can’t handle Dolby Digital Plus — you’ll need a receiver with HDMI 1.3 capabilities and an internal Dolby Digital Plus decoding capability. If your receiver doesn’t have these capabilities, it won’t keep you from enjoying the benefits of Dolby Digital Plus, but you’ll need to use a set of analog connections or configure your receiver to send the Dolby Digital Plus signal as linear PCM instead of as a bitstream.
Dolby Digital Plus is an optional format for Blu-ray discs, so any Blu-ray disc player should support Dolby Digital Plus, though not all discs will use the format. Dolby Digital Plus may also be used for other HDTV content — and may end up being encoded in a lot of the HDTV shows you get from your cable, satellite, or other TV service provider.
What Is Dolby Digital 2.0
A Dolby Digital® decoder is a device which decodes signals sent in the most popular format for digital surround sound. The most common version of this format involves five individual surround channels plus a separate channel for low frequency sounds carried by a subwoofer. However, there are also several other versions of Dolby Digital®.
Dolby Digital Download For Pc
The most common use of a Dolby Digital® decoder is as part of a home entertainment system. In most cases, the decoder will form part of a device known as a receiver which connects to one or more audio sources and then distributes the sound to the various speakers. Most receivers will also have a radio built in, while some can also handle video signals. An alternative to a receiver is an all-in-one unit in which the decoder and audio inputs are built into the subwoofer, which then connects to the speakers. A Dolby Digital® decoder could also be built into a computer sound card.
The standard form of Dolby Digital involves carrying separate signals for left, center, right, left surround and right surround channels, plus a sub-woofer. Download pes 2010 full version. The surround channels are often referred to as rear channels, though many audio experts suggest the relevant speakers should be placed to the side of the listener rather than behind them. Dolby Digital® is sometimes known as AC-3 or, when used in television broadcasts, ATSC A/52.