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ONNECTIONS

Fig. 5 Patch Bay Features

The patch bay consists of fourteen 1

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4” jack sockets which you can use to receive and send various control

voltage signals. If an arrow is pointing towards the jack socket it shows you that this is an output, if the

arrow is pointing away from the jack socket it is an input.

Let's start from left to right in the upper row. 

CLOCK

 (analog clock output)

This is the main clock output of the RH301. It sends a 50% duty cycle square wave signal. The

tempo is dependent on various settings explained above. The CLOCK output is twofold and
both outputs are buffered.

DIVISION

  (analog clock output)

This is the division output, sending a 50% duty cycle square wave signal depending on the
setting of the rotary DIVISION switch. The DIVISION output is twofold and both outputs are

buffered.

EXT. CLOCK

 (analog clock input)

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, therefore plugging a CV signal into

this jack will change the speed of the LFO. When you insert a control voltage into this input
the RATE knob determines the offset voltage (see Control Voltage Theory section). (Usable

range from 0 – 5V).

LFO RESET

 (CV input)

The LFO RESET input can be used the externally reset the LFO to bar 1 at any time. The

input reacts to any rising edge trigger that changes from 0V to 3V.

Left to right, lower patch bay row:

ENV

 (CV output)

The ENV CV output holds the signal of the envelope generator. Signal ranges from 0V – 7.6V.

ENV INV

 (CV output)

The ENV INV CV output is the inverted envelope output. Signal ranges from 7.6V – 0V.

LFO

 (CV output)

This is the main LFO output of the pedal. The LFO can be shaped and set up in the LFO

section of the pedal. Signal ranges from 0 – 7.6V.

KOMA Elektronik RH301 – Rhythm  Workstation / Utility Tool

Page 11

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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