Crystal Vision
Using card edge controls
TANDEM-300 User Manual R1.2
53
14/02/2008
6.11 Adjusting AES/EBU output phase
The phase of the digital audio output may be adjusted with respect to the AES reference,
providing an AES reference is applied and the appropriate jumper link is set on the
DOP2-75 or DOP2-110 sub-board.
To enter this menu, ensure that only MENU DIL switch 5 is down.
SEL
no
Display
Description
ADJ
funct
E
S1AESph xxx
Use shaft encoder to select 0-127
ADJ=xxx
F
S2AESph xxx
ADJ=xxx
The AES output phase may be varied over a range of just over 360 degrees. The display
shows a reading of 0 to 127 for indication purposes only.
The AES output frequency is set by the frequency of the by the frequency of the video
signal carried by the SDI signal. AES output clock is synthesised at a fixed rate derived
internally from the TRS sync signals.
The AES reference input signal must be the same as that of the incoming video to be
useable, otherwise it will not work correctly. This is normally the case as the AES
reference signal and the embedded SDI audio data will have been locked to the station
master video source, so that the 48kHz sample rate and AES word rate are both
considered synchronous with the video signal.
