Product/Service
Multichannel Audio Encoder
Source: Dolby Laboratories, Inc.
The DP569 is the reference Dolby Digital
multichannel audio encoder. It supports encoded
The DP569 is the reference Dolby Digital
multichannel audio encoder. It supports encoded
bit rates from 56 to 640 kbps and channel
configurations from mono to 5.1-channel surround
sound. The DP569 is intended for digital television
and disc authoring applications, including
automated broadcast installations and mastering
for DVD and other recorded media.
The DP569 provides three pairs of AES3 digital
audio inputs and a single AES3 output. A separate
AES3 input may be used for a clock reference
signal. Previously encoded Dolby Digital audio
bitstreams pass through unchanged—automatically,
if the DP569's bitstream detection feature is
activated. Matrix encoding on Dolby Surround
encoded input signals also remains unaffected.
EBU/SMPTE LTC and VITC timecode inputs make
it possible to start and stop the encoder accurately
to create separate program segments and
soundtrack files for disc authoring. For on-air and
other broadcast applications, timecode can be
used to trigger encoder configuration changes
automatically for smooth program transitions. In
some systems, the DP569 can also derive the
time stamps required for A/V synchronization.
A rear-panel connector provides external
metadata input from other Dolby products. Two
additional connectors are provided for general-purpose
I/O signals, including status and control
signals. Fault-monitoring circuits warn of actual or
potential system failure, and bypass connections
enable a hot-standby mode for broadcast
installations.
The DP569's front panel features an alphanumeric
LCD showing status parameters and tri-color LEDs
indicating channel activity. Controls include buttons
for setting the front-panel display, configuration
parameters, and default and preset modes. Front-and
rear-panel serial interfaces, along with
supplied application software, make it possible to
configure and control the DP569 from a Windows
PC or other remote device.
For decoding Dolby Digital material, the Dolby
DP562 Multichannel Dolby Digital Decoder is an
ideal companion to the DP569. As well as 5.1-
channel Dolby Digital decoding, it provides four-channel
Dolby Surround Pro Logic decoding.
Registered owners receive software upgrades to
add new features and functionality.
Dolby Laboratories, Inc., 100 Potrero Avenue, San Francisco, CA 94103-4813. Tel: 415-558-0200; Fax: 415-863-1373.
