Dolby Laboratories DP564 - Manual (Page 55)

DP564 Multichannel Audio Decoder
6-1
Chapter 6
Operating Modes
The DP564 offers unique control and monitoring options. This chapter covers:
• Monitoring modes
• Hardware remote control
6.1 Monitoring Modes
The front panel provides easy access to different monitoring modes. Control options
include:
•
Downmix
•
Decoding
•
Listening
•
Compression
Any time a feature is active, the front-panel button associated with that feature is lit.
This is true whether the feature is activated or deactivated manually, or controlled by
program metadata, a preset configuration, or a remote control device.
6.1.1 Downmix
You can apply
Downmix
options when a Dolby ® Digital multichannel input signal is
present.
Lt/Rt
produces an output compatible with Dolby Surround Pro Logic ®
decoding. It is a two-channel signal, created to be similar to a program encoded as
Dolby Surround. A properly encoded Dolby Digital program includes metadata that
controls downmix delivery, so if the consumer has a Pro Logic system, but not Dolby
Digital, the program plays back taking full advantage of Pro Logic. See Appendix A,
Metadata for more detail on metadata as used in content encoding.
Program metadata also customizes downmix delivery to a stereo system.
Stereo
(Lo/Ro)
produces a two-channel output designed for two-channel stereo listening, so
you can hear the downmix result under those conditions.
Note: For correct emulation of consumer products, the LFE channel is discarded in
Lt/Rt
and
Lo/Ro
downmixing modes, but not in the listening modes
Phantom
and
3 Stereo
. The DP564 may route low-frequency signals from all or some of
the main speakers to the subwoofer, according to your speaker configuration.