Terminology - Alpine IVA-D310RB Owner's Manual

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-H510/PXA-H900/
PXA-H700, etc.) is required to enjoy full 5.1-channel surround
sound.
The IVA-D310R/IVA-D310RB 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 theatres.
DTS has six independent sound tracks. The theatre presentation
is fully realized in the home and other settings. DTS is the
abbreviation for Digital Theatre System.
* To enjoy DTS surround sound you need the separately sold DTS
digital audio processor (PXA-H900/PXA-H700, etc.). The DVD
video software must also have a DTS sound track.
The IVA-D310R/IVA-D310RB has a built-in DTS 2-channel audio
decoder. Analog audio outputs are available.
60
-EN
Dolby Pro Logic
Dolby Pro Logic is the technology used to decode programs
encoded in Dolby Surround. Pro logic decoding will provide you
with four channels of sound (front left/right, center and monaural
rear surround) from a 2-channel (stereo) source.
* The separately sold digital audio processor (PXA-H510/PXA-H900)
is required to enjoy Dolby Pro Logic surround sound.
Dolby Pro Logic II
Dolby Pro Logic II plays 2-channel sources in 5 channels over
the entire frequency range.
This is done with an advance, high sound quality matrix
surround decoder which draws out the spatial properties of the
original recording without adding any sounds to or changing the
sound of the source.
* The separately sold digital audio processor (PXA-H700, etc.) is
required to enjoy Dolby Pro Logic II surround sound.
Linear PCM audio (LPCM)
LPCM is a signal recording format used for music CDs.
Whereas music CDs are recorded at 44.1 kHz/16 bits, DVDs are
recorded at 48 kHz/16 bits to 96 kHz/24 bits, thereby achieving
higher sound quality than music CDs.
Rating levels (parental lock)
This is a function of the DVD for restricting the viewing age as
stipulated by laws in different countries. The way in which
viewing is restricted differs from DVD to DVD. Sometimes the
DVD cannot be played at all, other times certain scenes are
skipped, and other times certain scenes are replaced with other
scenes.