Information; About Dvds; Terminology - Alpine IVA-D100 Manual De Instrucciones

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Information

About DVDs

Music CDs and DVDs have grooves (tracks) in which the digital
data is recorded. The data is represented as microscopic pits
recorded into the track – these pits are read by a laser beam to
play the disc. On DVDs, the density of the tracks and pits is
twice that of CDs, so DVDs can contain more data in less space.
CDs
Minimum pit
length -
1.2 mm
0.9 µm
DVDs
Minimum pit
0.6 mm
length -
0.6 mm
0.9 µm
A 12 cm disc can contain one movie or about four hours of
music.
In addition, DVDs provide sharp picture quality with vivid colors thanks
to a horizontal resolution of over 500 lines (compared to less than 300
for VHS tape). With the addition of an optional, digital audio processor
(PXA-H700, etc.), you can recreate the power and presence of a movie
theater with Dolby Digital 5.1-channel Surround.
In addition, DVDs offer a variety of functions.
Multiple audio* (page 23)
Movies can be recorded in up to eight languages. The desired
language can be selected from the unit.
Subtitles function* (page 24)
Movies can include subtitles in up to 32 languages. The desired
subtitle language can be selected from the unit.
Multi angle function* (page 23)
When the DVD contains a movie shot from multiple angles, the
desired angle can be selected from the unit.
Multi story function*
With this function, a single movie includes various story lines.
You can select different story lines to view various versions of the
same movie.
Operation differs from disc to disc. Story line selection screens
including instructions appear during the movie. Just follow the
instructions.
* The functions audio languages, subtitle languages, angles, etc., differ
from disc to disc. For details, refer to the disc's instructions.
58
-EN
Track pitch -
1.6 µm
Track pitch -
0.74 µm

Terminology

Dolby Digital
Dolby Digital is a digital audio compression technology
developed by Dolby Laboratories that allows large quantities of
audio data to be efficiently recorded on discs. It is compatible
with audio signals from mono (1 channel) all the way up to 5.1-
channel surround sound. The signals for the different channels
are completely independent, and since the sound is high quality
digital there is no loss of sound quality.
* The separately sold digital audio processor (PXA-H700, etc.) is
required to enjoy full 5.1-channel surround sound.
The IVA-D100 performs Dolby Digital decoding when it outputs
analog audio signals, it just happens to be 2-channel audio not
5.1-channel.
Center
speaker
Front
speakers
Rear
speakers
Subwoofer
Speaker layout for enjoying
Dolby Digital sound/dts sound
DTS
This is a home-use digital sound format of the DTS Sound
System. This is a high quality sound system, developed by
Digital Theater Systems, Inc. for use in movie theaters.
DTS has six independent sound tracks. The theater presentation
is fully realized in the home and other settings. DTS is the
abbreviation for Digital Theater System.
* To enjoy DTS surround sound you need the separately sold DTS
digital audio processor (PXA-H700, etc.). The DVD video software
must also have a DTS sound track.
The IVA-D100 has a built-in DTS 2-channel audio decoder.
Analog audio outputs are available.

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