KOMA Elektronik RH301 Rhythm Workstation / Utility Tool USER
Contents
1. ENV OUT INV ENV OUT INV QUT KOMA KOMMANDER DIN SYNC OUT GATE OUT LFO SYMM IN oo gt BASS SYNTHESIZER COMPUTER MODULAR SYNTH ENV GATE IN UT COMPUTER 7E E KOMA RH301 LFO OUT V OUT INV ENV OUT INV OUT TROUBLESHOOTING connected my DAW to the RH30I via MIDI but the pedal doesn t seem to start Firstly make sure that you set the master clock sync source to EXT and there is no cable in the EXT CLOCK input on the patch bay Please make sure that your DAW is sending the correct MIDI signals The expects a MIDI clock signal not a MIDI time code Furthermore your DAW should send a start signal whenever you hit play Sometimes it can happen that programs only send a start signal in the beginning of a song not every time when you hit Play for example in Ableton Live you should try to set MIDI Clock Type to Pattern Your also won t start to sync to MIDI when there is a cable plugged into the EXT CLOCK jack on the patchbay even if no clock signal is present at that input Also check your MIDI cables A large percentage of problems with MIDI sync are arising from cheap or broken MIDI cables If you have the opportunity try different MIDI cables My LFO will randomly reset while syncing to2. by knob GND 0 V GND 0 V PATCH AND REAR CONNECTIONS CLOCK CLOCK DIVISION DIVISION EXT CLOCK LFO SPEED LFO RESET ENV INV ENV GATE UFO I INV LFO SW SENSOR Fig 5 Patch s Features The patch bay consists of fourteen 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 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 5076 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 OV 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
3. it does not respond with octave per volt and in the higher frequencies the stability is less than 100 While the LFO is in sync mode it will always need one bar in order to adjust to the newly set division after you haven chosen a new division The SHAPE dial lets you choose between the five different waveforms of the LFO sine triangle square sample and hold S amp H and a special waveform which is composed of a sine wave and digital noise With the SYMMETRY knob you can bend the waveform The wave shaping is wavetable based so it will not be linear for the sine wave and the triangle For the square wave the SYMMETRY acts like a pulse width modulation it ranges from 10 duty cycle to 90 duty cycle For the S amp H output the symmetry adds noise to the LFO signal For the noisine waveform the symmetry knob changes the noise level The SYMMETRY knob has a dent at the 5076 setting so it is easy to find the original non shaped 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 Control Voltage Theory section for more information on that Please keep in mind that the incoming CV signal LFO SPEED input acts as if you would turn the potentiometer from fully counter clockwise CCW to fully clockwise CW so a rising CV signal from OV 5V gets you through the divisions from fast to slow in sync mo
4. 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 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 OV to at least 3V You can use the black push button to send start stop bytes MIDI and start stop gates DIN on
5. 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 as the master sync source If you want the 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 then using the black push button to tap a tempo After the third tap a start byte and gate being created automatically LFO AND ENVELOPE GENERATOR LFO The provided on the is the perfect companion for the clock syncing functions described earlier If you have your gear running in sync it gives you an extra CV source that can automatically be synced to the master clock or a division multiple of it The output of the LFO as well as the inverted LFO is 7 6V The LFO has four easy to understand controls With the RATE knob you adjust the frequency of the LFO If it s running in sync mode with the master clock you can choose between the various divisions and multiples of the master tempo If the LFO is running in free mode you can change the frequency continuously from 0 25Hz to 260Hz The LFO is not intended to be used as a proper voltage controlled oscillator
6. 0 gr 2 2 165 Shipping Weight 1 5 kg 3 3 Ibs including power adapter and this instruction manual Power requirements 9V DC power adapter 500mA min center polarity negative only use the KOMA adapter shipped with the pedal FEATURES TEMPO Rotary control to set the tempo in Free mode DIVISION Rotary switch to select one of 9 divisions multiples of the master clock signal SOURCE SELECT Slide switch to select the master clock sync source Tap Free MIDI DIN Sync external analog clock synchronization RATE Rotary control to change the speed division of the LFO SHAPE Rotary switch to change the basic waveform of the LFO Available waveforms are Sine Triangle Square S amp H Noisine SYMMETRY Rotary control to change the symmetry of the LFO waveform LFO MODE Slide switch to chose between synced or free running mode for the LFO ATTACK Rotary control 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 control to set the release time of the envelope RANGE Rotary control to change the time range on the A D and R stages By turning this knob clockwise the envelope becomes slower and fades from a snappy linear to a logarithmic behavior ENVELOPE MODE Slide switch to chose between master clock sync division
7. Ll ELEKTRONIK DIN MIDI IN MIDI OUT DIN OUT MIDI THRU ELEKTRONIK TATION CLOCK Sos DIV SION DSI 0 LFO lt SPEED LFO RE VINV El WS GATE o M aes RUMOR uM lo y SHAPE 2 TI o ATTACK DECAY SUSTAIN REI EASE RANGE RATE om Q Q y 24 Elektronik Rhythm Workstation Utility Tool USER MANUAL version 2 02014 Elektronik All rights reserved Table of Contents 4116816 RETE TEES 3 n 4 dE reco 6 LFO and Envelope 8 Control Voltage Theory oo epit a oer peel ra re ae RA 10 Patch Bay and Rear Connecllorisu side caer pae Ee i e vx am bri MT be CURA AU blat 11 Updating Firmware ie God de os it tit t ee ed ox tod suem e 12 ND MERE TUS n EE 13 TrOUDIGSDOOB ig au doce emo coc ats oot Pom Pe ode toto ee Er optan 15 DOME Nice TRICKS EIE 16 Technical SpeclfiGallOriS iris relied br ber ka ap Pt dae x Soa Ganda ad e a hd v Ea 17 eee te ee ee 19 r 19 INTRODUCTION Make things as simple as possible But not simpler A
8. ar system By moving your hand over the sensor you can control the parameters of the CV input you patched it up to With the trimmer on the back of the pedal it says SENSOR you can change the sensitivity of the motion controller For more information about control voltage check out the section Control Voltage Theory of this manual OPERATION The RH301 enables you to accomplish a couple of different tasks including converting clock signals from different formats into other formats The RH301 can work with and be synced to analog clocks MIDI and the DIN Sync format For most applications it is necessary to achieve two things First sync the tempi of two or more pieces of gear so that they are running at the same speed The second thing you need to achieve is to have the two synced tempi run in phase i e let them start running at the same time These two steps are solved differently in the three clock formats that the is compatible with Analog Clock In 24 PPQN Analog Clock Out 1 BEAT MIDI 24 PPQN DIN Sync 24 PPQN Fig 2 The 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 signal itself consists of 24 pulses called ticks per quarter note to sync the tempi together For a synchronized start and stop of sequencers LFOs or other functions start and stop bytes are s
9. ce that accepts CV inputs in general since it has it s own dedicated SENSOR Output on the patch bay of the pedal No matter what your setup is digital or analog if you use a modular synthesizer DAW drum computer synthesizer KOMA s own BDIOI and FT201 effect pedals the is an effective tool to make sure they all walk in line while you have your hands free to create beautiful tunes Have fun All the best from Berlin The KOMA Elektronik Team FEATURES TEMPO A TL SYMMETRY DIVISION ey B DECAY SUSTAIN RELEASE RANGE HH SYNC 5 LOOP Fig 1 Front Panel Features Master Clock The master clock consists of the TEMPO knob the rotary switch labeled DIVISION the three way slide switch with which you select the main sync source and the large black push button with the blue LED ring around it on the front edge of the pedal The button can either be used a Start Stop button as the tap button and or to re sync the master clock in certain situations The TEMPO knob is only active in FREE mode and can be used to freely adjust the main tempo anywhere from 40bpm to 240bpm beats per minute The main clock output labeled CLOCK on the patch bay sends a square wave signal every beat with a duty cycle of 50 The DIVISION knob can be used to send a division or multiples of the master CLOCK output This ranges from l6th notes to once every full bar in reference of the master clo
10. ch 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 division in a rhythmical manner Pattern mayhem LFO Envelope Ping Pong Take a standard 4 patch cable and connect it from the inverted LFO output to the envelope gate input ENV GATE Set the LFO to SYNC and chose the square wave shape Play around with the LFO symmetry knob Your envelope will now start its cycle every time the LFO just went low so they are playing in a nice ping pong way but still in sync with the rest of the clock signals More tips You ll find an constantly updated overview of tips and tricks on our website A ELEKTRONIK ELEKTRONIK Ia ELEKTRONIK eoooo 0000900 0000000 mm m m 66066 60605 EN p P Y gi 8 GEN E MA ELEKTRONIK eo 9 9 o9 6 66 5 na ee oeoa 9 RUD s e e e 090 0 0 eee eee Like your RH301 Check out our other products on www koma elektronik com and follow us on Facebook www facebook com KOMAelektronik T ECHNICAL SPECIFICATIONS GENERAL Casing Powder coated aluminum casing silk screened text and wooden side panels Dimensions 23 cm x 20 x 5 LX W x 9 98 2 LxWxH Net Weight 100
11. ck beats The DIVISION output also sends a square wave signal and has a duty cycle of 50 The three way switch next to the DIVISION knob has three positions TAP which allows you to use the large black push button to tap in a certain tempo Also this is the position for syncing the pedal to an external analog clock through the EXT CLOCK input The FREE position can be used to 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 oscillator consists of four basic features With the two way switch on the right you can choose between synced or free running mode The RATE knob sets the speed of the LFO If you chose to have the LFO synced to the master clock you can select a division or multiples of the master tempo to sync to If the LFO is running in free mode you can set any speed between 0 25Hz and 260Hz The SHAPE knob determines the output wave of the LFO You can choose between sine wave triangle square sample and hold and a special waveform which is composed of a sine wave and digital noise The SYMMETRY knob is used to wave shape the LFO output You can bend the symmetry of the wave from 10 to 90 More information can be found in the section of this manual Envelope Generator The envelope generator of the RH301 provides the opportunity to have another CV source available for syncing d
12. de but gets you from a low frequency to the fastest one in Hz mode Here is a table for the CV if you want to change your LFO division precisely 16 8 4 3 2 xl x2 x3 x4 CV 0V 0 55V 10 56 11 1 11 1 65 1 66V 2 2V 2 21V 2 75V 2 76V 3 3V 3 31V 3 85V 3 86V 4 4V 4 41V 5 0V Envelope Generator The also comes with an envelope generator onboard For the most part it is a classic ADSR envelope generator with the addition of the RANGE knob The RANGE knob is used to scale the time ranges of the ATTACK DECAY and RELEASE stages Simultaneously the behavior of the envelope is changed from linear to logarithmic The output of the envelope ranges from OV 7 6V SUSTAIN is not affected by the RANGE knob as its time is solely affected by the envelope gate If the envelope generator is synced to the master clock or the division the gate is high for exactly 5076 of the corresponding beat The RANGE knob scales the time ranges of the attack decay and release stages from 3ms 400ms to 40ms 4s At the same time the response curve of the envelope changes gradually from linear to logarithmic so you have a snappy linear envelope in the shorter times and a more organic feeling envelope with longer times You can trigger the envelope externally through the ENV GATE input either with a trigger or a gate signal The only difference is in the sustain stage If the external input is stil
13. ent over the same cable DIN Sync is an even older synchronization possibility from pre MIDI ages It usually uses 24 pulses sync24 seldom sync48 sync96 or even syncl92 per quarter to sync tempi together For the synchronized starting and stopping of devices a gate signal is used If the gate is high it means start run while if it is low it means stop 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 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 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
14. evices and creating in time events It is built much like its well known ancestors the ADSR envelopes In addition to ATTACK DECAY SUSTAIN RELEASE there is also a RANGE knob with which you can change the length of each segment as well as the behaviour of the envelope The RANGE knob not only stretches the maximum time each segment can take up but also crossfades between linear and logarithmic behaviour while fluctuating from shorter to longer envelope times The envelope can either be synced to the master clock the master division or can re trigger itself in loop mode It can also be synced to an external gate signal Large Black Push Button The large black push button on the front left corner has different functions If in TAP mode it is used to tap in the tempo Just tap the button three times and the new tempo will be adjusted to the tapped tempo In all other modes and when you use an external analog clock input to sync the pedal this knob is used to send 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 motion controller Since its functions with infra red LEDs we call it the SENSOR The motion controller can be used in many different ways Technically speaking it emits a CV signal control voltage which can be patched up with any CV receptive socket on the KOMA pedals and f i on your modul
15. external clock signals Please check your MIDI DIN Sync analog clock connections Many problems arise from cheap or broken cables Also be sure that you don t accidentally modulate your LFO rate via a CV signal attached to LFO SPEED and keep in mind that if you do so the LFO needs one bar to adjust to the new tempo Some of my equipment is starting to hum when attach a MIDI cable This can happen in some setups mostly involving USB MIDI interfaces or other equipment with a USB MIDI connection 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 connect my drum machine to the DIN OUT of the 2 301 it starts and stops randomly Please check the DIN cable that you use Like with MIDI most of the problems stem from defective or wrong DIN cables Make sure that all the pins on the cable are connected from one end to the other With some cheap MIDI cables it can happen that only the pins used for MIDI are actually connected through the cable MIDI and DIN use the same cable and plug but not the same pins on that cable I patch my sensor the the CV inputs and it doesn t seem to change anything Make sure you use the correct PSU 9V 500mA center polarity negative for the sensor to work correctly Have a look at the back of the pedal and check if your CV attenuators are in the right setting Furthe
16. ith the power adapter supplied by KOMA Elektronik Sorry the warranty will not be honored if the product is not properly packed Once you have received the write it on the box together with the word WARENRUCKSENDUNG 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 we will examine the product for any obvious signs of user abuse or damage as a result of transport If the product has been abused damaged in transit or is out of warranty we will contact you with an estimate of the repair cost Warranty work will be performed and KOMA Elektronik will ship and insure your product to your address free of charge How to initiate your warranty Please initiate your warranty online by sending an email to support koma elektronik com IMPRINT KOMA Elektronik GmbH Mahlower Strasse 24 12049 Berlin Neukolln Germany Vertretungsberechtigter Gesch ftsf hrer Managing Director Wouter Jaspers Christian Zollner Sitz der Gesellschaft Registered Office Berlin Germany Registergericht Court of Registration Amtgericht Berlin Charlottenburg Registernummer Registration Number HRB 145453 Umsatzsteuer ID VAT ID Number DE285522050
17. l high in the sustain stage the envelope will be held until the gate falls low again 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 stages Fig 3 The difference between linear and logarithmic ADSR output signals normal and inverted CoNTROL VoLTAGE THEORY The concept of control voltage CV is not hard to understand Instead of turning a knob on your pedal you simply connect a voltage the control voltage to the corresponding CV input that does the job for you So for example if you want to have a quickly varying LFO SYMMETRY you don t have to turn that knob all the time back and forth until your fingers fall off but simply connect an alternating CV to the LFO SYMMETRY input You can use control signals from any source to manipulate certain features of the All of the CV inputs of the accept LFO SYMM LFO SPEED bipolar as well as unipolar control voltages but work best with CV from 0 5V The incoming CV signals are mixed together with the CVIN CV IN corresponding knob on the RH30I itself and we provide you with a eiua attenuator for each CV input on the backside of the panel 9V DC INPUI Fig 4 Backpanel Features If you notice a significant distortion or clipping in your control signal waveform or strange CV behavior simply tur
18. lbert Einstein Dear new KOMA user Thanks a lot for purchasing our new brainchild the RH301 Rhythm Workstation Utility Tool The RH 301 is our solution to a problem many musicians are struggling with analog and digital equipment that needs to run side by side in sync but at the same time still needs to be controllable which is not always an easy task There are many standards out there MIDI DIN Sync analog clocks and control voltages in the form of LFOs and envelopes They all basically represent different approaches to produce synchronicity some of them are nearly as old as synthesizers themselves some are more recent Some are intended to let devices run at the same speed some at creating repeated or single events within a certain timeframe that s in sync with other gear That they don t always work together the way you want them to is a time consuming and annoying reality for many musicians This is why we decided to build a Rhythm Workstation Utility Tool that helps electronic musicians get the most out of their equipment by properly syncing a large amount of devices in many different ways without losing a hands on feeling and creativity The heart of the is the master clock of which the tempo can be set by turning the Tempo knob by tapping a tempo the tap button by syncing it to MIDI DIN Sync an external analog clock signal The generated clock signal can be passed on via two clock outputs two divisio
19. n outputs or via the MIDI Output and DIN Sync Output incoming MIDI signal can also be passed along via the MIDI Thru and MIDI Out sockets And that s not all besides having a master clock section the is also fitted with a LFO which can be synced to the master clock a division of the master clock or run freely from 0 25 Hz to 260 Hz in five different waveforms sine triangle square S amp H and noisine This means the pedal can also be used as an lo fi oscillator when you turn the up into the audible range The LFO has two separate outputs on the patch bay LFO out and LFO inverted out Some of the features of the LFO can also be modulated via control voltage the pedal boasts CV inputs for LFO SPEED LFO RESET and LFO SYMMETRY The third main feature of the is an Envelope Generator which can easily be synced to the master clock a division of the master clock or run in loop mode Besides the normal controls for ATTACK DECAY SUSTAIN and RELEASE the pedal comes with a RANGE knob to change the time range of the envelope created The envelope generator comes with a normal envelope output but also an inverted envelope output and can be triggered by an external gate trigger via the external gate Input To improve playability and to stimulate your creative process the RH301 also has a built in infra red motion controller which can be used to control the CV inputs of the other products or any devi
20. n the attenuator counter clockwise towards the 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 fully clockwise means that the incoming CV signal is arriving to the circuit unattenuated Furthermore you can set an offset voltage to your control voltage to adjust the CV signal to your needs The offset voltage is set by the corresponding knob on the front panel RATE and LFO SYMMETRY There s also a distinction between bipolar and unipolar signals This is best explained with a few pictures BIPOLAR CV SIGNALS V Bias set DU KBDE es GND 0 V GND 0 V So what happens The incoming CV signal is shifted around the voltage that you select with the corresponding knob Example if you insert a 5V to 5V sine wave into the LFO SYMMETRY CV jack you will get the following results while turning the SYMMETRY knob BIPOLAR CV SIGNALS 5V Bias set Bias set by knob by knob GND 0 V GND 0 V A similar thing happens to unipolar CV signals Their point of origin OV is shifted by the amount set with the corresponding knob In other words You add the voltage of your knob to the voltage of your incoming unipolar CV signal Now that you know more about CV let s see what the patch bay has to offer UNIPOLAR CV SIONALS 5V oV Bias set Bias set by knob
21. nt settings MIDI OUT Clock output This is the connection for the outgoing MIDI signal It contains the clock information as well as start and stop signals for MIDI receptive devices DIN OUT Clock output This is the clock output for DIN Sync receptive devices It provides the clock information sync24 as well as the start stop gate MIDI THRU Data This is the unprocessed MIDI signal present at the MIDI input jack chained through EXT SYNC The EXT SYNC input is basically a way to externally press the large black pushbutton Every time a rising edge trigger or gate arrives at this input the 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 in EXTERNAL mode and even use it to externally tap a tempo in the pedal when in TAP mode CV ATTENUATORS Trim pot There is one CV input trimmer each for LFO Symmetry and LFO Rate Turn the trimmer fully CW to get 100 signal going through and turn the trimmer fully CCW to get incoming CV signal 9V DC CONNECTOR Standard BOSS Style adapter 2 1 x 5 5mm barrel plug center polarity negative 5 00mA minimum Only use the KOMA Elektronik power supply shipped with this pedal UPDATING FIRMWARE The RH301 provides the possibility of updating its firmware by sending dumping MIDI SysEx data through a MIDI cable connected to the DIN MIDI input on the back of
22. rmore keep in mind that the incoming CV signal is added to the corresponding knob on the frontpanel LFO RATE and LFO SYMMETRY and you won t hear your changes if they are set too high I set my RH301 to FREE mode EXT mode and sync to an external clock signal but my DAW synthesizer drum machine doesn t start playing The converts incoming start stop signals from MIDI to DIN Sync If however you miss those start stop signals or none are sent you have to create them yourself by pressing the large black pushbutton When you are in FREE mode you always have to press that pushbutton yourself if you are syncing to an analog clock input you also have to create your own start stop signal SOME NICE TRICKS Here are some neat tricks that you might find useful while using the RH301 in different contexts Create in sync falling edge triggers S Triggers Some synthesizers especially older Korg Moog and Yamaha ones expect so called S Triggers on certain trigger inputs The S stands for switching In contrast to most modern trigger inputs these expect the signal to go from high to low If you come across such a situation it might come in handy to set the LFO to square wave and connect the inverted LFO output to the S Trigger input Set the LFO to sync mode turn the LFO symmetry fully CCW to be on beat and turn it clockwise to add a groovy feeling to it Rhythmically change the LFO division pattern Take a standard 1 4 pat
23. section Usable range from 0 5V LFO RESET CV input The LFO RESET input can be used the externally reset the LFO to bar at any time The input reacts to any rising edge trigger that changes from OV 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 7 6V ENV INV CV output The ENV INV CV output is the inverted envelope output Signal ranges from 7 6V OV 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 LFO INV CV output This is the inverted LFO output of the pedal It is in phase with the main LFO output but the voltages are inverted Signal ranges from 7 6V OV LFO SYMM CV input The LFO SYMM CV input controls the symmetry of the LFO When you insert a control voltage into this input the SYMMETRY knob determines the offset voltage see Control Voltage Theory section Usable range from 0 5V SENSOR CV output This is the CV output of the infrared motion sensor closer you move something towards the sensor the higher the CV rises The sensor output is 0 9V Back Panel connections DIN MIDI IN Clock data input Socket for MIDI or DIN Sync clock input The RH301 can distinguish if and consequently which signal is present at this connection so that you don t have to worry about differe
24. sync free running mode MASTER TEMPO LED LED ring around the Tap Start Stop button LFO LED LED indicator to display the LFO ENVELOPE LED LED indicator to display the envelope LARGE BLACK BUTTON Acts as a tap button in Tap mode or as Start Stop in the other master clock modes 2 IR EMITTERS IR RECEIVER Calculates the distance between an object and the pedal and generates a CV signal according to the measured distance The CV output of this sensor appears as a CV output on the patch bay from where you can route it to the CV input of your desired to be modulated feature PATCH BAY INS AND OUTS CLOCK 2 Master clock output square wave signal with 50 duty cycle DIVISION x2 Division output square wave signal with 5076 duty cycle EXT CLOCK CV input that accepts any rising edge trigger or gate LFO SPEED CV input 0 5V to control the rate division of the LFO LFO RESET Trigger Gate input that resets the LFO on the rising edge ENV CV output of the envelope signal 0 7 6V ENV INV CV output of the inverted envelope signal 7 6V OV ENV GATE CV input for an external envelope gate or trigger LFO CV output for the LFO signal 0 7 6V LFO INV CV output for the inverted LFO signal 0 7 6V LFO SYMM CV input for controlling the symmetry of the LFO waveform SENSOR CV output 0 8V of the onboard motion sensor for usage
25. the pedal To get into firmware update mode unplug the power cable as well as any other connections on the patchbay or back panel jacks Press and hold the large black pushbutton while re connecting the power cable Keep holding the button for 2 seconds If executed correctly the blue light around the pushbutton should now steadily glow blue Connect a MIDI cable between the DIN MIDI input on the back panel of the RH301 and your MIDI host The RH301 is now ready to receive firmware updates For more detailed information on this topic and the latest firmware please check out the RH301 product page on www koma elektronik com EXAMPLES COMPUTER LFO OUT EFFECT CV IN CLOCK OUT AUDIO OUT Y y SYNTHESIZER gt EFFEC KOMA RH301 DIN SYNC OUT DRUMCOMPUTE AUDIO OUT EFFEC AUDIO MIDI THRU C e sm AUDIO OUT ENV OUT FFECT CV In the example above a computer running DAW software is the provider of the master clock signal AUDIO OUT DRUMCOMPUTER pi SYNC IN MIDI QUT COMPUTER RH301 T MODULAR 5 Ere CLOCK OUT SYNTH SYNT FFECT CV IN AUDIO OUT EXT CLOCK IN cess AUDIO OUT KOMA RH301 DIN SYNC CoVPUTER 0000 CLOCK OUT rcc UAR San AUDIO OUT
26. 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 jacks BACKPANEL DC POWER INPUT Accepts standard BOSS style power adapters center polarity negative 500mA min KOMA Elektronik power adapter included CV ATTENUATORS The sensitivity of the CV inputs can be attenuated with trimmers on the back DIN MIDI IN Combined DIN Sync MIDI input MIDI OUT MIDI Output DIN OUT DIN Sync out MIDI TRHU MIDI Thru provides the unprocessed MIDI signal present at the DIN MIDI IN jack EXT SYNC CV Input for an external gate or trigger to externally start stop the RH301 in the different operating modes WARRANTY KOMA Elektronik warrants its products to be free of defects in materials workmanship and conforming to specifications at the time of shipment for a period of two years from the date of purchase During the warranty period any defective products will be repaired or replaced at KOMA Elektronik s option on a return to factory basis This warranty covers defects that KOMA Elektronik determines are no fault of the user Returning Your Product You must obtain prior approval in the form of an RMA Return Material Authorization number from KOMA Elektronik before returning any product Email us at support koma elektronik com to request the RMA number All products must be packed carefully and shipped w
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