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Theremin  Pitch-Bend  mode: 

  The  Theremin  is  able  to  send  Pitch-bend 

messages  and  also  note-on/off    messages  (when  triggered  with  the  trigger-
switch,  the  internal  auto-trigger  or  via  external  trigger  input).  Note  on/off 
message  pitch  is  controlled  via  the 

‘octave’

  parameter  and  the  Pitch-Bend 

offset  (Octave  *  note-offset).  When  triggered  externally,  note  velocity  is 
derived  from  the  trigger  signal.  Internal  triggers  derive  the  note  velocity 
from the main-volume. 
 
To  setup  the  midi-note-on/off  messages  for  the  Theremin,  set  the  mode-
selector  to 

‘Theremin’

  (MIDI)  and  adjust   

‘BEND  (  offset    )  /  OFF’

  with 

parameter knob 

P1

 as required.   

 
To  disable  the  pitch-bend  mode,  just  turn  parameter 

P1

  to  zero  again.  The 

Theremin  Pitch-bend  mode  has  higher  (highest)  priority  over  piano-mode 
and control-message mode. 
 
 

Alternative Pitch-Bend note trigger: 

When not using the pitch-bend mode 

in  conjunction  with  any  internal  or  external  triggers,  it  is  possible  to 
“automatically”  trigger  a  midi-note-on  message,  whenever  the  active 
Theremin  region  has  been  entered  (hand  near  the  antenna).  In  turn,  a  note-
off  message  will  be  send  when  exiting  the  active  Theremin  region  (or 
antenna  mute).  Additional  note-on  messages  can  be  triggered  via  other 
sources as well, if required. 
 
To enable this automatic Note-ON/OFF trigger mode, set the mode-selector 
to 

‘Instrument’

  (MIDI)  and  adjust   

‘BEND  note-on  msg  /  OFF’

  with 

parameter 

P1

.  This mode is disabled with  parameter 

P1

 set to zero. 

 

Summary of Contents for MIDI Wave-Theremin MWT-01

Page 1: ...0 MIDI Wave Theremin MWT 01 Draft Only 03 Oct 2012 2010 2012 Horst Gruhle horst midi theremin controller advanced theremins...

Page 2: ...Midi Theremin Operation 14 Filter Operation Resonance Noise 18 Ring Modulator Operation 19 Setting up the Theremin 20 Instrument configuration Save Recall 22 Overview of Instrument Selection elements...

Page 3: ...rators Play the sounds like a Theremin a touchless keyboard or like a drum with pitch bend and more Midi Theremin controller control a vast array of Keyboards computer software sound generators and ot...

Page 4: ...nd pan for each output Use the build in oscillators needle square triangle and or external signal to feed into the ring modulator input The combined input signals are then ring modulated with each car...

Page 5: ...capable of producing a stream of midi messages to control some other midi capable instrument that in turn produces the desired audio output or controls external filters etc 3 It can also be used as a...

Page 6: ...hen switching from waves black to modulators blue or setup red the parameter knobs P1 P2 P3 are disabled until the Mode selector knob has been moved This is to avoid unintended adjusting of parameters...

Page 7: ...is MUTE Parameter knobs P1 volume P2 tone P3 octave Note When changing the Instrument knob position or the Mode knob position the Parameter knobs are kind of disconnected from the actual parameters i...

Page 8: ...7 Stereo audio out Stereo audio in wave Trigger audio in MIDI out DC external power 12 Volt 400 mA regulated Connector for removable antenna Boom mount 3 8 needs converter 3 8 to 5 8 for standard boom...

Page 9: ...auto tune procedure The red status LED now stays ON no flashing until the auto tune cycle is completed Wait until Completed Once auto tune has been started you have one second to move away from the an...

Page 10: ...nd yet If you can t hear anything yet try to use the build in tuner to generate a sound Sine wave at approx 440 Hz Point the Wave select knob INSTRUMENT to SETUP The red status LED is now flashing fas...

Page 11: ...mode selector works in conjunction with the instrument selector If for example we have the instrument sine selected and we set the mode selector to volume we are then able to change the volume of eac...

Page 12: ...the frequency of oscillator 1 the frequency of oscillator 2 and 3 will follow according to their frequency ratio setting First Harmonic If we set the frequency ratio of oscillator 2 to be two times os...

Page 13: ...tion allows you to enable the build in gate and external volume control The gate is also a global effect and is not associated with any individual instrument directly but is saved recalled with all th...

Page 14: ...n of a semitone useful only for extreme aliasing settings to multiple octaves the more octaves the more difficult it will be to play a melody P3 is coarse adjust and P2 is fine adjust P1 has a special...

Page 15: ...end out To setup the program change message set the mode select knob to Instrument MIDI and adjust instrument select OFF with parameter knob P3 To disable the program change midi message again just tu...

Page 16: ...ally note velocity is derived from the trigger signal Internal triggers derive the note velocity from the main volume To setup the Piano mode for the Theremin set the mode selector to Theremin MIDI an...

Page 17: ...red To disable the pitch bend mode just turn parameter P1 to zero again The Theremin Pitch bend mode has higher highest priority over piano mode and control message mode Alternative Pitch Bend note tr...

Page 18: ...theremin mode rest at the lowest position and go all the way up o down only rest in middle neutral position and go down only o full bend rest in middle neutral position and go down up o up only rest...

Page 19: ...he NOISE position of the instrument selector has 3 noise generators available white noise P1 noise P2 and crackle P3 Each noise generator can be independently adjusted in volume Noise P2 and crackle P...

Page 20: ...uare with the incoming audio signal external signal raw oscillators The resulting 3 output signals can be individually panned and mixed Setting the mode selector to position PAN allows you to adjust p...

Page 21: ...ou like Adjust Antenna Range The playing range of the Theremin can be adjusted Set the mode selector to Antenna range and push the trigger button Adjust the overall playing far distance to the antenna...

Page 22: ...very increment of a parameter will send a note off note on click message to the midi output With P3 you can choose the Instrument for the click message i e piano Turn P3 to zero to turn off the sendin...

Page 23: ...be lost after power down unless they are collectively saved before power down This way you will always have a defined setting after power up and don t have to worry when fiddling with the knobs Just...

Page 24: ...audio generators can be setup using pitch and vol from the MIX section similar to wave operation The filter output HP BP LP can be mixed together using pan and tone to create a stereo output signal 11...

Page 25: ...molo auto trigger P2 tremolo wave select sine triangle saw square P3 tremolo auto trigger frequency External Trigger Gate for all instruments P1 adjust gain or disable trigger Gate function P2 trigger...

Page 26: ...max P2 Volume Osc 2 0 to max P3 Volume Osc 3 0 to max Pan P1 Pan Osc 1 left to right P2 Pan Osc 2 left to right P3 Pan Osc 3 left to right Tone P1 Tone Osc 1 Low Pass P2 Tone Osc 2 Low Pass P3 Tone Os...

Page 27: ...to max 0 off P2 Volume Raw Osc 2 0 to max 0 off P3 Volume Raw Osc 3 0 to max 0 off Pan filter output P1 Pan HP left to right P2 Pan BP left to right P3 Pan LP left to right Tone filter output P1 level...

Page 28: ...x 0 off Pan ring modulator output carrier wave P1 Pan sine left to right P2 Pan triangle left to right P3 Pan square left to right Tone ring modulator output carrier wave P1 level sine 0 to max P2 lev...

Page 29: ...message 0 31 or disable control message for P3 Midi messages Theremin P1 Pitch bend message offset semitones or disable pitch bend P2 Note ON message offset semitones or disable Note messages P3 Ther...

Page 30: ...29 MODE SELECTION Wave MATRIX...

Page 31: ...30 MODE SELECTION Modulator MATRIX...

Page 32: ...31 SETUP MATRIX...

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