Tascam DA-78HR - Manual (Page 62)

62
TASCAM DA-78HR
10 - MIDI control
10.1MMC enable and disable
The DA-78HR can be controlled using MIDI
Machine Control Commands (MMC). To enable and
disable the DA-78HR’s response to these commands:
1 Press the SHIFT key so that the SHIFT indicator
is flashing, and then press the MENU key until
the display shows MIDI-- ( MIDI--) .
2 Press the SUB MENU key until the display
shows MIDI on or MIDI OFF ( MIDI ON or
MIDI OFF ).
3 Use the ▲ and ▼ keys to make the appropriate
setting.
NOTE
Turning this parameter on and off will also enable and
disable respectively the transmission of MIDI
timecode (MTC).
10.1.1 Assigning a MIDI ID to the DA-
78HR
A MIDI ID is used in a MIDI Machine Control setup
to identify each unit in the MIDI chain.
One (and only one) of up to 127 units can be desig-
nated as the MIDI Timecode Master for the whole
chain.
This MIDI ID is not the same as a MIDI Channel
number (even though some units’ manuals may refer
to it as a “channel number”), and is not connected
with the Machine ID (8.2.2, “Setting machine ID”).
To set the MIDI ID:
1 Press the SHIFT key so that the SHIFT indicator
is flashing, and then press the MENU key until
the display shows MIDI-- ( MIDI--) .
2 Press the SUB MENU key until the display
shows
ID
( ID ), followed by the current ID
number.
3 Use the ▲ and ▼ keys to change the ID to a
value between
1
and
127
, making sure that
this is unique in your setup.
You can also select the default value of ALL
( ALL ), which allows the DA-78HR to accept all
MMC commands transmitted over the MIDI
network.
Set the MIDI ID using the method described immedi-
ately above.
The MMC commands used by the DA-78HR are
listed in this section (10.2, “MMC Bit Map Array”).
10.1.2 MMC commands and the DA-78HR
An example of a MIDI sequencer being used to con-
trol a DA-78HR (using the auto-punch of the
sequencer to punch in and out on the DA-78HR
tracks) is given below. Note that the sequencing soft-
ware must be able to transmit MMC commands and
also to sync to MTC for this to be effective:
The sequencer is set up to transmit MMC commands,
and is set so that it synchronizes to SMPTE/MTC.
When a “transport” command is given from the
sequencer, the appropriate MMC command is trans-
mitted to the DA-78HR. When the DA-78HR has
located and starts playback (or recording), the MTC
is transmitted back to the sequencer, which locks in
and starts at the correct point.
In this way, though the DA-78HR is the timecode
master, the sequencer is the transport master.
The arrangement shown here uses 2 inputs to the
sequencer. The same effect could be achieved with
the intelligent use of filtering mechanisms.
MIDI OUT
(MTC)
MIDI OUT
keyboard
events)
MIDI OUT (1)
(MMC commands)
MIDI OUT (2)
(musical data)
MIDI IN (1)
(MTC)
MIDI IN
MIDI IN (2)
(keyboard events)