Midi - Alesis ADAT-HD24 Reference Manual

synchronization and MIDI • chapter 8

MIDI

The HD24's MIDI
synchronization, software updates, and machine
control. Press the
MIDI
panel to scroll between the MIDI function pages.
You can also hold the
the (L ) or
YES NO
through the pages.
A list of these pages follows with explanations.
Send MMC
MIDI01:MMC
Send MMC?
When this setting is enabled, the HD24 will send a
MIDI Machine Control message each time one of
the transport keys or Record Enable buttons is
pressed.
MIDI Time Code Generation
MIDI02:MTC
Generate MTC? N o
To generate MIDI Time Code, set this control to
"Yes". When you press
generate MTC to match the timecode in the display.
This is useful for synchronizing a MIDI sequencer
or lighting controller to the HD24. To change the
start time of the MTC generation, you need to edit
the Locate 0 point. See page 44 for instructions on
how to edit the point.
Load Software
MIDI03:Software
Load Code?
If you need to update the software of your HD24
via MIDI, this is the page you need to use.
Send Software
MIDI04:Software
Send Code?
This page allows you to send the software from one
HD24 to another through the MIDI jack. When you
press the (L) button, the HD24's display will
YES
read:
Send Out OS Code
Are You Sure? Y /N
68
jacks are used
button on the HD24's front
button down and press
MIDI
(M ) buttons to quickly scroll
N o
on the HD24, it will
PLAY
Y /N
Y /N
Press the
display will read "Sending OS" with a progress
for
bar as it sends the code. This process will take
around 9 minutes via MIDI. You can abort the
software send by pressing the
Device ID
This page sets the Device ID for MIDI Machine
Control messages. This allows individual MIDI
control of multiple MMC-compatible devices. To
use this feature, make sure that the HD24 is set to
the same Device ID number as the device sending
MMC commands.
To update the HD24's operating
system software via MIDI:
Note: if you have a computer, it is also possible to
update the software via Ethernet, which is faster.
See Chapter 9 for details.
1. Connect the MIDI output of your computer
or other source of the software to the MIDI
IN of the HD24.
2. Press the
3. Press the
read:
4. Press the
will read:
5. Start sending software from the source device
(computer, HD24, etc.). This process takes
around 9 minutes over MIDI.
(L) button one more time. The
YES
STOP
MIDI05:Dev ID
Device ID:00 0
button until you reach page 3.
MIDI
MIDI03:Software
Load Code? Y /N
(L ) button. The display will
YES
COMPLETELY ERASE
OLD CODE? Y /N
(L) button. The HD24's display
YES
Waiting for
Software
ADAT HD24 Reference Manual
button.