Using The Hd24 With The M20 - Alesis ADAT-HD24 Reference Manual

synchronization and MIDI • chapter 8

Using the HD24 with the M20

The M20 and its remote control, the CADI, have the
most advanced synchronization capabilities of any
ADAT product. The M20 is designed to meet the
needs of video and film post production, including
SMPTE synchronization at 44.1 and 48 kHz
sampling rates including pull-up and pull-down
for film transfer capabilities. Although the M20 has
a much faster transport than other ADATs, it still
needs to be the master of the HD24 for reasons
already covered.
Note the following if you slave an HD24 to an M20
system:
Jog/shuttle wheel:
•
jog wheel on the M20 or CADI the HD24 will
not respond until a locate command is received
via the Sync In. It will not "scrub", although
the M20 will (if an Aux track has been created).
Individual track input mode: Only
•
the M20 can place individual tracks into input
mode while leaving the rest untouched.
Pressing the white track input keys on a CADI
that correspond to HD24 tracks will have no
effect.
No ALL SAFE:
•
CADI will NOT take tracks on the HD24 out of
record-ready mode.
88.2/96k sampling
•
M20/CADI cannot synchronize an HD24 that
is using the high sampling rates.
Force Master:
•
tape in the M20 and leave it offline, using it
only as a synchronizer for the HD24. See the
M20 documentation for information on the
"force master" feature.
72
When you turn the
Pressing on the
ALL SAFE
rates:
T h e
It is possible to have no
ADAT HD24 Reference Manual