Dolby Laboratories DMA8PLUS - Manual

The Dolby ® DMA8Plus Digital Media Adapter is a practical, flexible
solution for equipping your sound system for digital cinema,
onscreen advertising, special events, and other program sources
using digital audio. The adapter provides a comprehensive audio
interface while its automation intelligence maintains a seamless
fit with your cinema processor. The product design is elegant yet
rugged and compact, occupying only one rack-unit space.
The DMA8Plus has four separate digital inputs and will accept up
to eight channels of PCM digital audio as well as Dolby Digital and
Dolby E bitstreams. Two-channel audio sources can be decoded
as discrete L/R, Dolby Pro Logic
® , or Dolby Pro Logic II. Analog
audio outputs are calibrated to cinema processor reference levels
to ensure a straightforward interface with your cinema’s existing
sound processor.
The DMA8Plus is easily set up via a laptop computer, and can
be controlled by your cinema’s automation system via standard
GPIO automation, serial, or Ethernet commands. Individual digital
sources can be selected rapidly using dedicated front-panel
buttons. The unit also provides a switched “through” connection
for external film audio decoders or six-channel analog sources
such as the Dolby DA20. (In this way, both the DMA8Plus and the
DA20 may share the cinema processor’s six-channel input format.)
A separate adjustable global audio delay is assigned to each
digital input to ensure that sound and picture are perfectly
synchronized during digital cinema presentations. Different
delays can be assigned to different inputs, giving flexibility with
alternative content sources that often require different delays.
The front panel is designed to provide a wealth of feedback and
usability for the user. Simple manual control is provided by the four
digital input buttons and one film pass-through button. The valid
indicators verify digital signal presence on each associated input.
Other indicators reveal the bitstream format, the Decode mode, and
eight-channel analog output signal presence. A USB port provides a
reliable PC connection for the setup software application.
Equip your sound system for digital cinema with the Dolby
® DMA8 Plus Digital Media Adapter.
DMA8Plus
Digital Media Adapter