The Doepfer MSY2 MIDI-to-SYNC Converter is an interface that converts the MIDI realtime events Clock, Start and Stop into the corresponding signals Clock and Start/Stop of the SYNC standard. This standard was used e.g. in the Roland devices TB303 bass line or TR808 rhythm composer.
Doepfer MSY2 MIDI-to-SYNC Converter is equipped with 2 SYNC DIN sockets (switched in parallel), a Clock miniature jack socket (3.5mm), MIDI-in and MIDI-Thru. SYNC-CLOCK is a periodic signal (0/+5V) representing the tempo. SYNC-START/STOP is a signal that indicates one of the 2 possible states: START = +5V, STOP = 0V. The Clock pin of the SYNC standard is additionally available from a miniature jack socket e.g. for synchronizing the arpeggio input of an analog synthesizer with MIDI.
Doepfer MSY2 MIDI-to-SYNC Converter enables the 1:1 conversion of MIDI CLOCK into SYNC CLOCK (i.e. 1 MIDI clock triggers 1 SYNC clock pulse), as well as the reduction of the tempo by dividing the incoming MIDI clock frequency by an integer factor. The factor can be set to any value between 1 and 16 with a DIP switch at the bottom of the MSY2. A factor 1 corresponds to the 1:1 conversion. In this case the pulse width of the clock output is fixed to about 4 milliseconds. 16 is the maximum of frequency reduction, i.e. after 16 MIDI clocks 1 SYNC clock appears. For all dividing factors beyond 1 the pulsewidth of the clock signal corresponds to the selected dividing factor.
With two other switches the Start/Stop polarity and the Clock polarity can be changed for special applications not following the SYNC standard.
Clock and Start/Stop are displayed with 2 LEDs.
MIDI In, MIDI Thru
Doepfer MSY2 MIDI-to-SYNC Converter is built into a stable metal case (about 60 x 60x 35 mm) made from 1 mm sheet steel.
From spring 2011 the case color is black.
The unit is powered by an external power supply (7-15V DC / min. 100mA)
Important technical notes:
– Doepfer MSY2 MIDI-to-SYNC Converter responds only to the Midi realtime messages Clock, Start and Stop. MSY2 cannot be controlled by other Midi messages like note on/ff. If your MSY2 does not respond please double check if your Midi transmitter outputs Midi Clock, Start and Stop. For some units or programs this function has to be activated explicitly.
– Doepfer MSY2 MIDI-to-SYNC Converter will work only together with Midi outputs that correspond exactly to the Midi standard established by the Midi-Association. Particularly pin #2 of the Midi output socket has to be connected to GND. Otherwise MSY2 will not work. If the Midi Out socket of your device does not comply exactly with the Midi standard MSY2 will not work !