MOTU micro express-USB, Руководство пользователя

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U S I N G M I D I T I M E P I E C E A V C O N S O L E
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is channelized and filtered again before leaving the
MIDI Timepiece AV. All of this processing power is
completely configurable from the Console.
WINDOWS MIDI PORTS
As for data arriving and leaving your computer via
the included Windows MIDI driver, imagine it
coming a going from the MIDI Timepiece AV data
bus as shown in the above diagram. All
channelizing and filtering is applied before the
input data arrives at any software input port and
after it is sent from any software output port. This
is a great advantage as it frees up your computer
and MIDI software from having to deal with the
mundane (and time-consuming) chore of such
processing. Just configure your MIDI
Timepiece AV and let it do all the work!
Once you get the Timepiece AV Windows MIDI
driver installed, you’ll notice that all eight MIDI
Timepiece AV inputs and outputs are available to
your MIDI programs.
Figure 10-6: MIDI Timepiece AV ports in Cakewalk Pro.
Sync port
You’ll also see several other special sets of MIDI
Timepiece AV ports besides the normal input and
output ports. The first is the “Sync” input port
where all MIDI real time and MIDI Time Code
messages will arrive, regardless of where the MIDI
Timepiece AV received them from. All other
received data will arrive at the other input ports as
appropriate.
☛
At no time will MIDI real time or MIDI Time
Code messages arrive on any of other MIDI
Timepiece AV Windows input port besides the
special “sync port”.
ADAT ports
The second special pair of ports is the “From
ADATs” input port, and the “To ADATs” output
port, which will allow you to send MIDI data—
particularly MIDI Machine Control (MMC)
commands—to your ADAT(s). If you have MIDI
MIDI
Timepiece AV
data bus
Channel
mapping
Windows MIDI Ports
(Computer)
MDI OUT
Channel
mapping
Event filtering Event filtering
MDI IN
Figure 10-5: MIDI Timepiece AV internal MIDI
data processing sequence.
!USB Interfaces Manual Book Page 86 Tuesday, October 10, 2000 12:43 PM