Grass Valley DAP-1781 - Manual (Page 68)

GUIDE TO INSTALLATION AND OPERATION
68 | DAP-1781
Dolby decode, Processing & Dolby Digital (AC-3) encode
Video proc
Audio proc
A
u
d
io
b
u
s
A
u
d
io
b
u
s
Dolby-E
or AC-3
Decoder
HD/SD
ref
HD/SD
+
Dolby
Digital
AES
metadata meta.
AES
XVP-1801
DAP-1781 #1
AC-3 Encoder
AES
metadata metadata
AES
A
u
d
io
b
u
s
Dolby-E
or Dolby
Digital
Decoder
Comp.
Limiter
Expand.
DAP-1781 #2
The tracking delay is applied on
this audio card. Set the Fixed
Delay, with a negative value, to
compensate the tracking delay:
minus 7 frames.
The Dolby Digital encoded
signal is sent to the XVP-1801
via ABUS.
This card is in Serial mode.
Dolby decode, Internal or Third Party processing
& Dolby-E encode
Video proc
Audio proc
A
u
d
io
b
u
s
A
u
d
io
b
u
s
Dolby-E
or AC-3
Decoder
HD/SD
ref
HD/SD
+
Dolby-E
AES
metadata meta.
AES
XVP-1801
DAP-1781 #1
Dolby-E
Encoder
AES
metadata metadata
AES
A
u
d
io
b
u
s
Dolby-E
or Dolby
Digital
Decoder
Comp.
Limiter
Expand.
DAP-1781 #2
The Dolby-E encoded signal is
sent to the XVP-1801 via
ABUS.
This card is in Serial mode.
On the video card, set the
Additionnal Frame Delay to 7
frames to match the decode/
encode latencies.
On the video card, set the
Additionnal Frame Delay to 2
frames to match the decode/
encode latencies.
The tracking delay is applied on
this audio card. Set the Fixed
Delay, with a negative value, to
compensate the tracking delay:
minus 2 frames.