MSY2 MIDI to Sync Interface

$105.00

MSY2 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. Details about the DIN SYNC standard are available at our FAQ page: SYNC specification

MSY2 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.

MSY2 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. This corresponds to 96...6 ppm or 24...1,5 ppq (ppm = pulses per measure / ppq = pulses per quarter note).


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. 

Please note this product does not come with a power supply.  It can be supplied power via its MIDI input, or an AC Adapter with 7...15V/100mA output DC required, DC connector with 5.5 mm outer diameter and 2.1 or 2.5 mm inner diameter, polarity: plus = center, minus = ring

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