MOTU Digital Timepiece Bedienerhandbuch PDF herunterladen (Seite 35)

USING MICRO EXPRESS CONSOLE

The Setup list will always contain the eight user

Setups followed by the eight factory Setups.

Selecting a Setup from the list with the mouse will

cause the Micro Express to change to the selected

Setup. You can also use the keyboard up and down

arrow keys to scroll through the list, pressing Enter

to select the desired Setup. Alternately, you may use

the Micro Express’s front panel buttons to change

Setups. At all times, the Console should remain “in

sync” with your Micro Express, accurately

displaying the current Setup conﬁguration.

The SMPTE readout

To the right of the Setup list is the SMPTE readout.

The SMPTE readout always gives a real time,

running update of the current frame time and

frame rate when your Micro Express is converting

or generating SMPTE timecode.

Figure 6-4: The SMPTE readout in the toolbar sync display.

Below the SMPTE readout is the SMPTE error list.

This list will display any “dropouts” and MIDI

errors encountered while converting incoming

SMPTE. Each dropout will be shown with the last

valid SMPTE time converted before the dropout

occurred and the number of frames missing after

that time. The list will be cleared each time new

timecode begins. Hopefully, you will not see too

many entries appear in this list. However, if you do,

the Micro Express has a ﬂexible SMPTE free-

wheeling (“jam-syncing”) capability to smooth out

problem sync tracks (you can also use the Micro

Express as a SMPTE regenerator/reshaper to re-

record or extend sync tracks).

ExpressHelp

You’ll also notice a bar along the bottom of the

main Console window. This is the status bar where

notiﬁcation and progress messages will be

displayed from time to time while the Console

performs its various functions. In addition,

another feature of the Console uses this area for

displaying “ExpressHelp”. ExpressHelp consists of

short, informative messages that change

depending on which Console control (button, list,

etc.) the on-screen mouse cursor is on top of.

ExpressHelp will also update if you shift the control

focus using the Windows keyboard interface (using

the Tab key in a console window, for example)

instead of using the mouse.

ExpressHelp is enabled by default to aid you in

getting familiar with the Console, but you may

disable it with the Options menu selection.

MICRO EXPRESS MIDI PROCESSING

Before going any further, it is important to

understand how the Micro Express performs its

MIDI processing, speciﬁcally the order in which

each type of processing is applied. Figure 6-5

illustrates how the Micro Express processes MIDI

data as it travels from one interface input port to

one interface output port.

First, data is received from an input port, where it is

immediately ﬁltered (events that are ﬁltered are

removed). Next, the remaining events are

channelized (“mapped”) to different channels (the

default is no channelizing) and then they are sent to

the “data bus”. The data bus is where port-to-port

routing takes place, sending MIDI data from each

input to any combination of outputs. When the

data ﬁnally reaches its destination output port(s), it

is channelized and ﬁltered again before leaving the

Micro Express. All of this processing power is

completely conﬁgurable from the Console.

SMPTE frame rate

hours minutes seconds frames

!USB Interfaces Manual Book Page 33 Tuesday, October 10, 2000 12:43 PM

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