Profile Of This Unit - Yamaha DDP-1 Owner's Manual

Thank you for purchasing the Yamaha DDP-1, a sophisticated
digital sound processor designed specifically for decoding
Dolby AC-3.
This unit consists of an AC-3 RF demodulator, an AC-3
decoder and other original Yamaha functions developed using
the newest technology to reproduce AC-3 encoded sources
precisely as movie sound creators intended. AC-3 will lead
listeners into a totally new sound experience.
What's Dolby AC-3?
Dolby AC-3 is a new generation of multi-channel digital audio
technology, or the newest spatial sound processing format
developed for 35 mm film-movies by employing a new kind of
low bit-rate audio coding.
Dolby Surround AC-3 is a digital surround sound system that
provides completely independent multi-channel audio to
consumers.
In multi-channel form, Dolby Surround AC-3 provides five full
range channels in what is sometimes referred to as a "3/2"
configuration: three front channels (left, center and right), plus
two surround channels. A sixth bass-only effect channel is also
provided for output of LFE (low frequency effect), or low bass
effects that are independent of other channels. This channel is
counted as 0.1, thus giving rise to the term 5.1 channels in
total.
Compared to Dolby Pro Logic that is referred to a "3/1" system
(left front, center, right front and just one surround channel),
Dolby Surround AC-3 features two surround channels, called
stereo or split surrounds, each offering the same full range
fidelity as the three front channels.
Features of this unit
•
Dynamic range (sound scale) of source can be
changed so that it will be suitable for the listening
conditions.
•
Output of low bass from any channel can be
assigned to either the MAIN OUTPUT terminals or
SUBWOOFER OUTPUT terminal to maximize
system performance.
•
Output of LFE can be assigned to either the MAIN
OUTPUT terminals or SUBWOOFER OUTPUT
terminal to maximize system performance.
4

PROFILE OF THIS UNIT

This unit is equipped with "discrete" terminals for sending AC-3
multi-channel audio signals individually. The audio amplifier or
receiver must have "discrete" input terminals to receive the
signals from the DDP-1. The use of Yamaha RX-V2090, a
multi-channel audio/video receiver equipped with discrete input
terminals combined with this unit is an ideal choice for the
purpose of experiencing AC-3 sound, and this is the best
system we recommend.
Sound of wide dynamic range reproduced by the five full range
channels presents listeners much excitement that has never
been experienced before. Precise sound orientation by the
discrete digital sound processing expands realism that the
original movie possesses.
Laser Disc is a home audio format that could benefit from
Dolby AC-3. In the near future, Dolby AC-3 will also be applied
to DBS, CATV, DVD and HDTV. The ongoing release of Dolby
Stereo Digital theatrical films now underway will provide an
immediate source of AC-3 encoded video software.
Manufactured under license from Dolby Laboratories Licensing
Corporation. "Dolby", "AC-3", and the double-D symbol
trademarks of Dolby Laboratories Licensing Corporation.
Copyright 1992 Dolby Laboratories, Inc. All rights reserved.
•
Test tone generator helps you adjust speaker level
balance.
•
Center channel output can be sent to the main
speakers if you do not use a center channel
speaker.
•
Three types of inputs (AC-3 RF, AC-3 Digital
Optical and Coaxial) are available for future use.
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