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With  

analog clocks  

the matter is also pretty straight forward: The clock signal consists of a pulse or

square wave that syncs the tempi. Starting and stopping can be solved through various approaches, most of

them include a start/stop gate.All of the previously mentioned standards have been brought together in the
RH301 to provide a usable working environment, no matter what setup you use.

MIDI as the master sync source

Set the master sync source to EXT. and plug the MIDI cable with the clock signal into the DIN/MIDI IN jack
on the back of the pedal. The RH301 internally starts to adjust its tempo to the MIDI tempo as soon as a

clock signal arrives on the input.

A start / stop byte from your DAW or hardware MIDI sequencer is translated into a corresponding byte,
and only the MIDI clock itself is received by the pedal, start / stop gate on the DIN OUT jack. If no start /

stop byte, and only the MIDI clock itself is received by the pedal, the black push button can be used to start
itself and send a start / stop gate at the DIN OUT and to add a start / stop byte at the MIDI OUT jack.

The push button can also be used to sync “off beat”: If you push it while the RH301 is running already the

pedal will reset its internal clock to 0, in sync with the MIDI ticks that are coming via the MIDI cable. This
way you can manually sync the RH301 into shifted clock signals.

DIN Sync as the master sync source

If you want to sync your setup to a DIN Sync source simply plug in the cable and switch the master sync
source to EXT. The usage is similar to having your pedal synced to a MIDI signal. An incoming start / stop

gate is translated into a corresponding start / stop byte on the MIDI OUT connection. If no start / stop gate
is being received by the pedal, you can create your own by pressing the black push button. This will start the

pedal and send a MIDI start / stop byte to the MIDI OUT jack as well as a start / stop gate to the DIN
OUT jack.

The push button can also be used to sync “off beat”: If pushed while the RH301 is running, the pedal will

reset its internal clock to 0, but stays in sync with the DIN sync clock that is coming in via the DIN sync
cable. This way you can manually sync yourself into shifted clock signals.

Analog Clock as the master sync source

Set the master sync source to EXT. and insert a jack with a clock signal into the EXT. CLOCK jack on the
patch bay. The pedal reacts to rising edge clock signals going from 0V to at least 3V.  You can use the black

push button to send start / stop bytes (MIDI) and start / stop gates (DIN) on the next rising edge trigger.
The EXT. CLOCK input is a switching type jack that overrides the other sync settings, so whenever you

insert a cable in this input the pedal will only sync to an analog clock / trigger signal on this jack.

RH301 as the master sync source

If you want the RH301 to be the master clock source itself there are two possibilities: You can set the

master clock to FREE and adjust the tempo with the TEMPO knob. By pressing the black push button you
create the start / stop functions. You also have an option to set the master clock to TAP, then using the black

push button to tap a tempo. After the third tap a start byte and gate are being created automatically.

KOMA Elektronik RH301 – Rhythm  Workstation / Utility Tool

Page 7

Summary of Contents for RH301

Page 1: ...KOMA Elektronik RH301 Rhythm Workstation Utility Tool USER MANUAL version 2 1 2014 KOMA Elektronik All rights reserved KOMA Elektronik RH301 Rhythm Workstation Utility Tool Page 1...

Page 2: ...Envelope Generator 8 Control Voltage Theory 10 Patch Bay and Rear Connections 11 Updating Firmware 12 Examples 13 Troubleshooting 15 Some Nice Tricks 16 Technical Specifications 17 Warranty 19 Imprint...

Page 3: ...hru and MIDI Out sockets And that s not all besides having a master clock section the RH301 is also fitted with a LFO which can be synced to the master clock a division of the master clock or run free...

Page 4: ...freely set the main tempo of the pedal with the TEMPO button The EXT position serves as your choice i e if you want the pedal to sync to either MIDI or DIN Sync input LFO The LFO low frequency oscill...

Page 5: ...start stop signals over MIDI and DIN Sync Sensor One of the features on your RH301 that you won t find in any other pedal is the possibility to control the features of the pedals with the on board mot...

Page 6: ...atible with Fig 2The difference between MIDI DIN Sync and Analog Clock Signals MIDI is a digital communication standard from the 80s coming in the flavor of a serial protocol With MIDI clock the clock...

Page 7: ...to having your pedal synced to a MIDI signal An incoming start stop gate is translated into a corresponding start stop byte on the MIDI OUT connection If no start stop gate is being received by the pe...

Page 8: ...haped waveforms Take your time and try the waveforms separately and change the symmetry to get an idea of what you re changing LFO RANGE and SYMMETRY can be modulated by external CVs as well see Contr...

Page 9: ...and will then proceed to the release stage If you trigger the envelope with an external trigger the SUSTAIN knob simply determines the level that the envelope falls to between the decay and release s...

Page 10: ...e word CV until you hear your desired result By turning it counter clockwise you attenuate the incoming CV signal Fully counter clockwise means that the incoming CV signal is completely gone whereas f...

Page 11: ...put This CV input accepts rising edge driven analog clock signals Every time a signal rises from 0V 3V the pedal counts one beat LFO SPEED CV input The LFO SPEED CV input controls the speed of the LFO...

Page 12: ...r gate arrives at this input the RH301 will react as if the pushbutton on the pedal would have been pressed You can use this input to externally start stop the RH301 when in FREE mode re sync it when...

Page 13: ...a computer running DAW software is the provider of the master clock signal In the example above a drum computer with DIN Sync Out is providing the master clock signal KOMA Elektronik RH301 Rhythm Wor...

Page 14: ...KOMA Elektronik RH301 Rhythm Workstation Utility Tool Page 14...

Page 15: ...sound cards hardware MIDI controllers etc Try to prevent ground loops and check your MIDI connections did we already mention that a lot of problems come from cheap or broken MIDI cables When I connec...

Page 16: ...dard 1 4 patch cable and connect it from the envelope output to the LFO speed input Set both LFO and envelope generator to sync and create a slowly changing envelope The envelope will change the LFO d...

Page 17: ...rol to set the attack time of the envelope DECAY Rotary control to set the decay time of the envelope SUSTAIN Rotary control to set the level of the envelope while the gate is high RELEASE Rotary cont...

Page 18: ...output 0 8V of the onboard motion sensor for usage with CV inputs on the pedal other KOMA Elektronik pedals or other voltage controlled devices All patch bay inputs and outputs are mono inch phone ja...

Page 19: ...ENR CKSENDUNG and carefully pack your product ship the product to KOMA Elektronik with transportation and insurance charges paid and include your return shipping address What will we do Once received...

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