Dolby CP750 Digital Cinema Processor Manual - Projectionniste.net

Chapter 1
Introduction
The Dolby ® CP750 Digital Cinema Processor is a direct result of Dolby Laboratories’
continued leadership in the development of innovative cinema technologies. The CP750 is
a self‐contained, all‐digital cinema processor. It supports PCM and Dolby Digital audio, as
well as Dolby Digital Surround EX TM , Dolby Pro Logic ® , and Dolby Pro Logic II playback.
With the CP750, you can present high‐quality audio from the following audio sources and
formats:
• Dolby Digital Cinema system
• Onscreen advertising servers
• Digital VTRs
• Digital satellite or cable TV receivers
• DVDs
• PCM
• Dolby Digital consumer bitstreams
The CP750 provides analog audio inputs for:
• An external six‐ or eight‐channel processor
• A nonsync source
• A public address microphone
Its analog audio outputs are balanced, with a multipin connector configured to the THX
standard. Built‐in Ethernet, USB, and serial interfaces accommodate PC control and cinema
network connectivity.
An independently adjustable global audio delay is assigned to each input to ensure that
sound and picture are perfectly synchronized during digital cinema presentations.
Different delays can be assigned to different inputs, providing flexibility for alternative
content sources, which often require different delays.
The CP750 is compatible with existing theatre automation systems and ASCII command
strings. Its ability to handle multiple formats and future upgrades make it an essential tool
for an evolving digital cinema market.
Installation is simplified by built‐in test instrumentation that includes a real‐time analyzer
and signal generators for pink noise, sweep tones, tones, and a phase check thumper.
Third‐octave equalization, plus bass and treble trim controls, are provided for all channels.
A digital parametric equalizer is provided for the Subwoofer channel.
Easily programmed internal software manages audio settings and configuration. The
full‐featured software package facilitates the setup process.
Dolby ® CP750 Digital Cinema Processor Manual 1