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Xoro HSD 8410 [45/53] Glossary

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GLOSSARY

Dolby Digital

5.1

Dolby Digital

5.1 is a system for transmission and storage of 5.1 channel sound on digi-

tal media as DVD, digital TV and satellite transmission. Different from the codecs Dolby

Surround

and Pro Logic

who do not work with channel separation to encode the sur-

round sound in a stereo recording, Dolby Digital

is a discrete system where the different

audio channels keep completely separated during encoding and decoding. Dolby Digital

5.1 is industry standard for coding of DVD movies with surround sound.

DSP

Digital Signal Processor. Microprocessor for digital processing of signals. Virtual Surround

for example is created with a DSP.

DTS

is a coding standard similar to Dolby Digital

. DTS Digital Surround

is a multichan-

nel surround system from Digital Theater Systems. Similar to Dolby Digital

it uses up to

5.1 channels. Different from Dolby, the data rate can be far above 1 Mbit/sec so the sound

is not compresses as strong as in Dolby Digital

resulting in a higher sound quality.

The frequency range is from 20Hz to 20kHz at 20Bit, but the subwoofer channels only

transmits frequencies below 80Hz. The coding system also is called CAC.

DVD

The DVD (Digital Versatile Disk) was introduced in 1995 and is a storage media with a

large capacity.

While a standard CD can store 650 MB of data, the DVD can store up to 9 GB. Especially

when it comes to video playback, a large storage capacity is important. Beyond its high

capacity, the consumer enjoys high quality video and audio. A DVD can store up to 8 dif-

ferent audiostreams, so in best case, the movie can be watched in 8 different languages

Photo-CD (JPEG CD)

A Photo-CD is a storage system for image storage on a CD-ROM in a platform independ-

ent multi resolution structure (support of different resolutions and file formats, e.g. JPEG,

BMP, etc). As a single camera film dies not fill a complete CD, more films can be added to

the CD at a later time. A CD-ROM drive must be multisession enabled to load images

from a Photo-CD.

GUI

Graphic User Interface. See OSD

HDCD

Pacific Microsonics has developed a digital audio technology using the full potential of a

CD. The HDCD process (High Definition Compatible Digital) is a patented coding and

decoding process transporting the complete details of a high resolution “master recording”

to a CD. There were several attempts to improve the sound quality of CD’s, but none

which could be compared to HDCD process.

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Xoro HSD 8410 [45/53] Glossary

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