SP Studio Systems SP-12 - Manual (Page 75)

MIDI, SYNC & SMPTE
© E-mu Systems, Inc. 1985 Page 75
Enhanced by The Emulator Archive 2002 www.emulatorarchive.com
Note: The MIDI output “tracks” the SMPTE output, so if you are driving, say, a MIDI
sequencer from the SP-12 MIDI OUT, the sequence will “fast-forward” along with the
SP-12. However, you will not hear the SP-12, as it is muted while fast forwarding.
If the SMPTE time code being read from tape is much later than the SP-l2’s start
point, the SP-l2 may need to “fast-forward” several times through the song or
segment before it catches up with the tape.
6F CLICK SYNC (SYNC 4)
1. To select Click sync, activate the SYNC module and key in 14. In this mode,
the SP-12 syncs to click pulses arriving at the CASS/SYNC/SMPTE IN jack.
2. Selecting Click automatically selects the Click Divisor display. The SP-12 is
designed to run at its programmed tempo with a 214 pulses-per-quarter note
click. However, some devices put out 48 (Linn), 96 (Oberheim), or 384
(Fairlight) pulses-per-quarter note click signals. Use the Left Arrow and Right
Arrow buttons or keypad to key in a divisor between 01 and 99 to divide the
incoming click signal. However, there is one complication -- the SP-12 reads
both the rising and falling edge of a clock pulse. What this means is that it
thinks a 24 pulses-per-quarter note signal is really 48 pulses, a 96 pulse
signal is really 192, and so on. Therefore, if the SP-12 is being driven by a 96
pulses-per-quarter note device, divide this by 08 to obtain a 24 pulses-per-
quarter note signal; Fairlight fans should divide by 32). After selecting the
clock divisor, press ENTER.
3. To slave to a Click signal, select the desired SP-12 segment or sequence and
press RUN/STOP. The sync light will flash, indicating that the SP-12 is
awaiting sync. As soon as the master is started and sends out Click signals to
the SP-12, the sync light will go out and the segment or sequence will start
playing.