Dolby Laboratories DP564 - Manual (Page 22)

DP564 Multichannel Audio Decoder Front-Panel Controls
3-4
Decode
Use the
Decode
buttons to select a specific surround-decoding mode.
Note: Dolby Digital decoding is applied whenever a Dolby Digital signal is
received. The
Decode
buttons offer additional processing options.
EX
activates Dolby Digital Surround EX
™
decoding. It is available only when
decoding Dolby Digital bitstreams with stereo surround channels. You must also have
back surround (Bsl, Bsr) speakers selected in the
Monitor Configuration
menu.
Pro Logic
and
Pro Logic II
activate those decoding modes, respectively. The
Pro Logic modes are available only if the input is PCM, a Dolby Digital signal in
audio coding mode 2/0, or any other Dolby Digital signal downmixed to Lt/Rt.
Note: To quickly access the display screen to adjust Pro Logic II settings, hold down
the
Pro Logic II
button for two seconds.
Listening
Use the
Listening
buttons to simulate different consumer multichannel speaker
systems.
Phantom
mixes the Center channel signal to the Left and Right channel
outputs to emulate a speaker system with no center channel.
3 Stereo
mixes the Ls
and Rs channel signals to the front-channel outputs to emulate speaker systems with
no surround speakers. (Ls routes to L, and Rs routes to R.)
Full
maps all channel
signals directly to the associated outputs. Only one of these modes is active at a time.
Compression
The
Compression
buttons can apply the dynamic range control profiles available to
consumers when decoding Dolby Digital audio. Only one of these modes is active at
a time; to disable compression, press the active button.
RF
applies the strongest profile available, equivalent to an RF connection to a TV set
or small PC speakers.
Line
applies what appears on some consumer decoders as
“light” compression; this is usually the default setting in DVD players and set-top
boxes.
Custom
allows scaling of the Line profile. The factory setting for
Custom
is 0
percent. At that setting, selecting
Custom
turns off dynamic range compression. To
access the display screen to adjust the percentage setting for custom scaling, hold
down
Custom
for two seconds.
Note: When downmixing, the DP564 automatically applies compression at peak
moments to prevent potential signal overload from combining multiple
channels, regardless of whether a compression mode is selected.
Pro Logic II Pro Logic II
Pro Logic Pro Logic
EX
Full
3 Stereo 3 Stereo
Phantom
Custom
Line
RF