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01GB05DVA9861Ri.fm
ALPINE DVA-9861Ri 68-04123Z62-A (EN)
Terminology
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-H900, PXA-H701,
etc.) is required to enjoy full 5.1-channel surround sound.
The DVA-9861Ri performs Dolby Digital decoding when it outputs
analog audio signals; 2-channel audio, not 5.1-channel.
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, etc. DTS is the abbreviation for Digital Theater
System.
* To enjoy DTS surround sound you need the separately sold DTS
digital audio processor (PXA-H900, PXA-H701, etc.). The DVD
video software must also have a DTS sound track.
The DVA-9861Ri has a built-in DTS 2-channel audio decoder. Analog
audio outputs are available.
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, centre and monaural rear surround)
from a 2-channel (stereo) source.
* The separately sold digital audio processor (PXA-H900) is required
to enjoy Dolby Pro Logic surround sound.
Dolby Pro Logic II plays 2-channel sources in 5 channels over the entire
frequency range.
This is done with an advanced, 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-H701, etc.) is
required to enjoy Dolby Pro Logic II surround sound.
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.
This is a DVD function for restricting the viewing age as stipulated by
censorship 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.
Dolby Digital
DTS
Center
speaker
Front
speakers
Rear
speakers
Subwoofer
Speaker layout for enjoying
Dolby Digital sound/DTS sound
Dolby Pro Logic
Dolby Pro Logic II
Linear PCM audio (LPCM)
Rating levels (parental lock)
01GB00DVA9861Ri.book Page 53 Wednesday, December 7, 2005 12:00 PM