User Manual

RECEIVE SYNC
956
After Digital Performer is locked to the master,
there is no need to use Digital Performer’s main
transport controls unless you wish to record.
Digital Performer will start, stop and locate under
control of the master. Also upon lockup, if Click is
enabled, Digital Performer will click in the meter
specified at 1|1|000 or will default to 4/4.
You can put Digital Performer into play or record
either before or after you start rolling tape. In either
case, Digital Performer will lock up quickly.
Using MTC sync mode
After you have chosen MTC mode, slave Digital
Performer as explained in “Tap Tempo” on
page 957.
MIDI BEAT CLOCKS
Figure 86-7: The MIDI Beat Clock options.
This is a standard form of synchronization
between two MIDI devices. When the MIDI Beat
Clocks option is selected, Digital Performer can
sync to a master device that is generating MIDI
clock signals. If you want to slave Digital Performer
using a drum machine, external sequencer or other
MIDI device as master, use this mode. This mode
may also be used with a SMPTE converter that
generates its own tempo map. In MIDI Beat Clocks
mode, Digital Performer’s tempo will match that of
the master device; Digital Performer’s tempo
features are disabled.
Implementations of MIDI have evolved over the
years. As a result, not all devices transmit and send
MIDI clock signals in the same way. Digital
Performer provides several options for maximum
synchronization compatibility with your master
device:
24 clocks per metronome click/
24 clocks per quarter note
Some manufacturers make devices which send 24
clock signals per beat (one click of the device’s
metronome) instead of the standard 24 clocks per
quarter note. This method is very useful when
there are meters which do not use the quarter note
as the beat unit: 3/8, 5/16, etc. In 6/8, for example,
there might be a metronome click every three
eighth notes; in 4/1, the metronome would click
once every whole note. If you were using a less
common meter such as 5/32 or 3/16 + 4/16, using
the quarter note as the timing base would not be
very useful. Instead, use the 24 clocks per
metronome click option.
Start on any clock
When this option is checked, Digital Performer
will automatically start if it receives a time clock
even if no start or continue command was received.
This option is necessary when using some early
MIDI devices which don’t send start or continue
commands, only timing clocks.
First clock is time 1
When this option is checked, Digital Performer
interprets the first MIDI clock signal it receives as
the second timing clock of the sequence, 1/24th of a
beat after the beginning. Devices manufactured
recently send the first clock signal (time 0) after the
start command for the sequence. Some earlier
devices assume the start command to be the first
clock signal. The first clock signal they send would
be 1/24th of a beat after the beginning. If you are
using one of these devices, you should check this
option.