Related Manuals for Horst MIDI Wave-Theremin MWT-01
Summary of Contents for Horst MIDI Wave-Theremin MWT-01
- Page 1 MIDI Wave-Theremin MWT-01 Draft Only - 03 Oct 2012 © 2010 – 2012 Horst Gruhle horst midi theremin controller / advanced theremins...
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Page 2: Table Of Contents
Wave Theremin – main features at a glance …..........2 Wave Theremin – where to begin ….............. 4 Control panel features – at a glance …............5 Kick-starting the Theremin:................8 Making the first sounds with the Wave-Theremin: ........9 The Instrument and Mode Selector in more detail: ........ -
Page 3: Wave Theremin - Main Features At A Glance
Wave Theremin – main features at a glance … • Stereo Theremin – play up to 3 notes at the same time with over eight different wave forms from a perfect Sinewave to traditional rectified Sinewave, Triangle, Squarewave and more … •... - Page 4 • Theremin controlled 24dB Filter (Resonance) – Theremin controlled self resonating ladder style 24 dB filter with individual Low-pass, Band-pass and High-pass stereo outputs, level and pan for each output. Use the build in oscillators (needle, square, saw) and/or external signal to feed into the filter input. •...
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Page 5: Wave Theremin - Where To Begin
Wave Theremin – where to begin … At first glance it seems overwhelming just looking at all the knobs and buttons. Let us have a look at the overall structure of the Theremin. The Wave-Theremin is in fact 3 Theremins in one: (1) It can be played like a normal Wave-Theremin producing audio output from within the Theremin itself, using a variety of build in oscillators, wave- forms and modulators, to create a multitude of different sounds and effects. -
Page 6: Control Panel Features - At A Glance
Control panel features – at a glance … • Instrument-select knob ( 12 positions – INSTRUMENTS, SETUP) When 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 • Trigger / accept button ( momentary ) • Red Status LED ( ON, OFF, flash ) • Auto re-tune ON/OFF switch (UP position is ON) • Wave A/B toggle switch and wave A/B indicator LED • Theremin mute switch ( mute audio and midi output ) DOWN position is MUTE •...
- Page 8 • 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)
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Page 9: Kick-Starting The Theremin
Kick-starting the Theremin: Connect Leads: Connect a mono or stereo lead from the Theremin output to the Amplifier or Mixing Desk etc… This is important – it provides a ground path for the Theremin ! Hook up midi and external trigger (input) as required. Connect Power: Use the 12 VDC (400 mA) power supply (as supplied) and connect it to the 12 Volt D/C input of the Theremin first. -
Page 10: Making The First Sounds With The Wave-Theremin
Making the first sounds with the Wave-Theremin: Initial Setup: • Make sure the amp is working • Point the Wave-select knob (INSTRUMENT) to ‘Sine’ • Set the Mode-knob (GLOBAL) to position ‘Main’. • Make sure the ‘Mute’ switch is in the UP position (audio on) and •... -
Page 11: The Instrument And Mode Selector In More Detail
The Instrument and Mode Selector in more detail: The Instrument Selector: Each of the instrument settings of the Instrument Selector has 3 oscillators associated with. They are capable of producing the waveforms of the selected Instrument (i.e. Sine etc…) Each oscillator can be individually adjusted in pitch and volume. - Page 12 The A/B Switch: With the ‘A/B switch’ , we can toggle between 2 different settings of a particular instrument (3 oscillators each). If for example we select position A and we turn only the volume of the main oscillator up (oscillator-2 and oscillator-3 volume to zero) then we would have created a simple sine wave Theremin sound at instrument ‘Sine A’...
- Page 13 The Tremolo: Pointing the mode selector to the ‘tremolo’ position allows you to turn on the build in tremolo / auto-trigger (midi) feature. The tremolo is a global effect, it is not associated with any individual instrument directly, but is saved / recalled with all the other settings. Parameter P1 adjusts the ‘intensity’...
- Page 14 Pitch Range: The starting pitch of the Theremin is primarily controlled by ‘octave’ setting and the ‘pitch’ setting of the main oscillator-1. With the ‘pitch-range’ setting we can control the overall playing range of the Theremin from ‘no range’ (pitch does not change) to a fraction 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).
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Page 15: Midi Theremin Operation
Midi Theremin Operation: The Theremin can be set up in various ways to generate midi events, from pitch-bend to note ON/OFF to control messages and program change messages. Each “instrument” can be set up individually to perform in a particular way. Selection of midi channel and pitch bend mode is done globally via SETUP. - Page 16 Theremin control-message: The Theremin is also able to send 14-bit midi- control messages. The closer to the antenna we go, the higher the control value will be. This can be used to control external filters with the Theremin. To setup the midi-control messages for the Theremin, set the mode-selector ‘Theremin’...
- Page 17 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).
- Page 18 Using Pitch-Bend without trigger: It is not necessary to trigger a note via the Theremin, when using pitch-bend. Just use the pitch-bend mode in conjunction with a keyboard and play chords, scales, etc on the keyboard itself and use the Theremin as a high resolution pitch-bend ‘lever’ . This opens up an amazing new way of playing the keyboard “as a Theremin”.
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Page 19: Filter Operation (Resonance, Noise)
Filter Operation (Resonance, Noise): The 24 dB resonant filter is implemented as a ladder style filter. It is self oscillating (when the resonance parameter is turned up high) and with increasing drive, it exhibits (by design) a certain amount of tube style distortion (even harmonics) which makes it a very musical filter. -
Page 20: Ring Modulator Operation
Ring Modulator Operation: ‘MODULATE’ position of the instrument selector has 3 carrier- frequency generators available: sine (P1), triangle (P2) and square (P3). The carrier frequency is controlled via the theremin antenna and the octave-skip parameter. ‘MODULATE’ position also has 3 raw oscillators available: triangle (P1), square (P2) and needle (P3). -
Page 21: Setting Up The Theremin
Setting up the Theremin: The Theremin can be customized to suite your preferences. To enter the (global) setup mode, point the Instrument-Selector to position ‘SETUP’. The red status LED should now be flashing fast. From here you can initiate another Auto-tune, save and recall settings etc… Initiate Auto Tune: Set the mode selector to ‘Auto-Tune’... - Page 22 Midi Setup: To setup various midi options, set the mode selector to ‘midi- setup’ (vol) and push the trigger button. P1 allows you to select a global ‘midi channel’ (1 .. 31). When adjusting P1, every channel increment will send a note-off/note-on "click" message to the midi output.
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Page 23: Instrument-Configuration Save / Recall
P3 allows you to enable ‘Global A/B’. When toggling between setting A and B, the settings for main, tremolo and gate can also be toggled. This would allow you, for instance, to have setting A with ‘tremolo turned on’ and setting B with ‘gate enabled’... -
Page 24: Overview Of Instrument Selection Elements
Overview of Instrument Selection elements: (1 … 8) Wave Select: (all waves up to 3 voices/oscillators at a time) Preset 1 Preset 2 Preset 3 Sine Triangle Rectified Sine Saw tooth Square The Oscillators can be setup/mixed using pitch, vol, pan, tone and fade from the MIX section. -
Page 25: Mode Selection Elements
Mode Selection elements: Main: (for all instruments) P1: Overall Volume control P2: Overall Tone control (Low pass filter) P3: Overall Octave shift (from Sub to Hyper) Tremolo / Auto-Trigger: (for wave instruments / all instruments) P1: adjust tremolo intensity or disable tremolo / auto-trigger P2: tremolo wave select (sine, triangle, saw, square) P3: tremolo / auto-trigger frequency External Trigger / Gate: (for all instruments) -
Page 26: Mix Elements (Waves)
MIX elements (waves): Pitch: P1: Oscillator 1 (main pitch adjust) P2: Oscillator 2 ( pitch adjust relative to osc 1) P3: Oscillator 3 ( pitch adjust relative to osc 1) Volume: P1: Volume Osc 1 (0 to max) P2: Volume Osc 2 (0 to max) P3: Volume Osc 3 (0 to max) Pan: P1: Pan Osc 1 (left to right) -
Page 27: Mix Elements (Resonance, Noise)
MIX elements (resonance, noise): Pitch: (filter input) P1: Raw Oscillator 1 (saw tooth) P2: Raw Oscillator 2 ( square) P3: Raw Oscillator 3 ( needle) Volume: (filter input) P1: Volume Raw Osc 1 (0 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) -
Page 28: Mix Elements (Ring Modulator)
MIX elements (ring modulator): Pitch: (ring modulator input) P1: Raw Oscillator 1 (triangle) P2: Raw Oscillator 2 ( square) P3: Raw Oscillator 3 ( needle) Volume: (ring modulator input) P1: Volume Raw Osc 1 (0 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: (ring modulator output/carrier wave) -
Page 29: Midi Messages Configuration (All Insruments)
MIDI messages configuration (all insruments): Midi messages Knobs: P1: Set control-message (0 – 31) or disable control-message for P1 P2: Set control-message (0 – 31) or disable control-message for P2 P3: Set control-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... -
Page 30: Mode Selection (Wave) Matrix
MODE SELECTION (Wave) MATRIX... -
Page 31: Mode Selection (Modulator) Matrix
MODE SELECTION (Modulator) MATRIX... -
Page 32: Setup Matrix
SETUP MATRIX...