Midi Clock - Disaster Area Design SMARTClock Quick Start Manual

Using t he M ulti J ack
The Multi Jack is located next to the MIDI Input, opposite the two main Tempo Outputs. The Multi
Jack h as t hree p ossible f unctions, w hich m ay b e s et i n t he S etup m enu.
No – t he M ulti J ack f unctions a s a " normally o pen" t empo o utput
Nc – t he M ulti J ack f unctions a s a " normally c losed" t empo o utput
INPT – t he M ulti J ack f unctions a s a n a dditional t ap t empo i nput
MIDI – t he M ulti J ack f unctions a s a n a dditional M IDI o utput
In order to use the Multi Jack as a tempo output, a Disaster Area PTP adaptor should be used. The
PTP turns the 0-­‐5V signal from the Multi Jack into a "dry contact" for use with tap tempo input
devices. Connecting the Multi Jack directly may damage the SMARTClock or your tap tempo device.
If t he M ulti J ack i s s et a s a T empo O utput, a n a dditional " C" o ption w ill b e a vailable i n t he S ubdivision
setting m enu.
If u sed a s a t ap t empo i nput, t he M ulti J ack s hould b e c onnected t o a n ormally o pen f ootswitch w ith a
shielded T S c able. T he D isaster A rea D MT-­‐1 i s a n e xcellent c hoice f or t his f ootswitch. T he M ulti J ack
will f unction a s a t ap t empo s witch r egardless o f t he m ode t he S MARTClock i s i n, t hus a llowing a t ap
tempo s witch e ven w hile i n P reset m ode.
Finally, the Multi Jack may be used as a second MIDI output. Certain devices (such as the Empress
Phaser a nd T remolo 2 , a nd t he C hase B liss W arped V inyl a nd W ombtone) m ay c onnect d irectly t o t he
Multi Jack using a ¼" cable. The Empress devices may use a standard TS-­‐TS cable, while the Chase
Bliss pedals require a TRS cable with the Tip and Ring reversed. Please contact Disaster Area or
Chase Bliss to purchase the correct cable. If a standard MIDI output is desired, the Disaster Area
DAD-­‐05-­‐TRS-­‐1.5 adaptor cable should be used. The Multi Jack MIDI output will send all the same
messages a s t he m ain M IDI o utput, i ncluding C lock, S tart, S top, a nd P rogram C hange.
MIDI C lock
The S MARTClock a lso s ends M IDI B eat C lock t o s ynchronize y our M IDI d evices. M IDI c lock i s s ent a t
a r ate o f 2 4 p ulses p er q uarter n ote; a t 1 20bpm t he S MARTClock w ill s end 2 ,880 p ulses e ach m inute.
Most M IDI d evices a re d esigned t o r eceive M IDI c lock a nd w ill " chase" t he c lock s ignal, r eplacing t heir
internal t iming i nformation.
MIDI clock is sent to all devices at the same time, and is not addressed to a specific MIDI channel.
Consult t he u ser m anual f or y our M IDI d evices t o d etermine w hether t hey w ill a ccept M IDI c lock.
When the SMARTClock clock is running, MIDI clock is sent from both the MIDI output and the USB
MIDI port. Starting the clock will send a MIDI START message, stopping the clock will send a MIDI
STOP m essage.
If an external MIDI device sends MIDI clock to the SMARTClock MIDI input or USB MIDI port, the
SMARTClock is capable of converting this signal to taps through the Tempo Outputs. If the external
MIDI device sends a MIDI START message, the SMARTClock will automatically disable its internal
clock. If no MIDI START message is sent, disable the internal clock by holding the footswitch in
Preset M ode.
If t he e xternal M IDI c lock s ignal i s l ost, t he S MARTClock w ill s top s ending m essages a nd t aps u ntil t he
external s ignal i s r estored o r t he i nternal c lock i s r estarted.
If an external MIDI clock signal is present, the Tempo Outputs will send out taps continuously
whether t hey a re s et t o A uto o r 4 TAP. A dditionally, t he d isplay m ay f luctuate t o a s mall d egree a s t he
SMARTClock a ttempts t o c ount t he B PM f rom t he e xternal c lock.