MOTU micro express-USB, Руководство пользователя

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U S I N G M I C R O E X P R E S S C O N S O L E
34
WINDOWS MIDI PORTS
As for data arriving and leaving your computer via
the included Windows MIDI driver, imagine it
coming a going from the Micro Express data bus as
shown in Figure 6-5. 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 Micro Express and let it do all the
work!
Once you get the Micro Express Windows MIDI
driver installed, you’ll notice that all four Micro
Express inputs and outputs are available to your
MIDI programs.
Figure 6-6: Micro Express ports in Cakewalk Pro.
Sync Port
You’ll also see several other special Micro Express
ports in addition to its regular MIDI ports. The
first is the “Sync” input port where all MIDI real
time and MIDI Time Code messages will arrive,
regardless of where the Micro Express 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 Micro
Express Windows input port besides the special
“sync port”.
Out All port
You’ll also see a port called “Out All”. This port will
also appear in your MIDI programs, allowing you
to send the same MIDI data out all the Micro
Express’s output ports at once.
MIDI ports and the Micro Express console
You do not need to have the Console running in
Windows to use the Micro Express with your other
MIDI software. Also, as the Console does not
compete with other MIDI applications for the
Windows MIDI ports, you can freely open and
close the Console to make adjustments or simply
check the current settings.
Micro Express
data bus
Channel
mapping
Windows MIDI Ports
(Computer)
MDI OUT
Channel
mapping
Event filtering Event filtering
MDI IN
Figure 6-5: Micro Express internal MIDI data
processing sequence.
!USB Interfaces Manual Book Page 34 Tuesday, October 10, 2000 12:43 PM