
821016: AMPx-E8 Series User Guide
© 2011 Wohler Technologies, Inc. All rights reserved.
51
Chapter 5
Dolby
PCM
Use the
Left
or
Right
button to scan through the list of programs
available in the selected bitstream. Multi-channel programs will allow
you to scroll through the pairs of the program to isolate individual
channels with the
Balance
knob or mute features. Channels that are
not enabled per Dolby specifications are not selectable. The appropriate
speaker Assign LEDs above the bar graph meters will light to indicate
which channels are selected to the left and right sides of the unit's
stereo speaker array. While a channel pair is selected in this monitoring
mode, the LCD screen will indicate the selected channel pairs by
showing the first channel (of the selected pair) in the upper left of the
LCD screen and the second channel in the upper right. When the
downmix is selected, the LCD screen will show
PgN
on both upper left
and right corners of the LCD screen (where
N
is the Dolby-assigned
program number).
Figure 5–2
Dolby E, Bitstream 1, Program 1
When
Dolby Decode
mode is enabled (and a valid signal is detected),
Dolby E or Dolby D will show up on the bottom right hand corner of
the LCD screen for Dolby E or Dolby Digital signals, respectively.
Dolby bitstreams can be fed into Dolby
BSt1
or
BSt2
(a.k.a. bitstream
inputs, labeled as
Dolby E/AC3 In
), or can be embedded into any
audio pair of an SDI signal present on
SDI
In 1
or
In 2
.
Up to eight program selections are available if the signal being
monitored is a Dolby E signal:
PG1
through
PG8
; Dolby Digital allows
only one program. The number available depends on the type of signal
being monitored. See the
Table 7–5
:
Dolby Main Output Channel
Assignments on page 73
for a full list of possible program channel
assignments for both Dolby Digital and Dolby E bitstreams. The three
types of bitstreams accepted at the Dolby inputs are Dolby E, Dolby
Digital, and PCM.
PCM
If the signal being monitored is a PCM (AES/EBU) signal, then only
one monitoring mode is available:
PG1
. In this mode Channel 1 is sent
PG1
BSt1
PG1
E