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QUICK START GUIDE

Look for the companion demo videos on our YouTube channel.

The Altura MkII is a MIDI controller and arpeggiator that emulates the classic theremin. The right sensor 
transmits note data to set the pitch. The left sensor transmits a variety of MIDI controller data to influence 
the sound in many ways. In X-Y mode, the right sensor mimics the left: both sensors transmit control 
data of your choosing.

The Altura MkII features 20 preset locations to preserve your setups.

1.  POWER UP

 Use a 9v DC power supply or a battery.

• 

9v DC power supply (“wall wart”): Must be 
rated for 200 mA minimum, with center-negative 
polarity, such as a typical guitar pedal supply. 
Look for this graphic on the power supply. (Your 
controller won’t work with a center-positive 
power supply.) Plugging in the power supply 
disconnects the battery.

• 

9v battery: Use a high-quality alkaline battery, like Energizer. (Don’t waste your money on 
cheap batteries!) Open your cabinet; insert the battery into its holder; snap the contacts into 
place; and then push down to snap the battery into the holder. The fit is tight; you may need 
to use a little screwdriver as a shoe horn to ease the battery into place.

2.  CONNECT A MIDI DEVICE

 Plug a standard MIDI cable into the Altura MkII’s MIDI OUT jack, 

and connect it to the MIDI IN of your Macchiato Mini Synth or any other device; or plug into a 
MIDI patch bay or other port device; or use a MIDI-to-USB cable to plug into your computer.

3.  SET THE KNOBS

 to the following default positions, just for this tutorial, until you become familiar 

with their functions:

DATA 

FAR

DATA 
NEAR

FUNCTION

KEY

SCALE

OCTAVE 

NEAR

OCTAVE 

FAR

Right

Right

Left

Left

Left

Straiht up

Straight up

4.  TURN ON YOUR SYNTH

 If you are using a Macchiato Mini Synth, set it for short attack, long 

release, and a deep LFO. If you are using a different synth, set its receive channel to 1 or Omni. 
(By default, the Altura MkII transmits on Channel 1. You will learn how to change this shortly.)

5.  TURN ON YOUR ALTURA MkII

 Press the red power button on the back of the Altura. If you 

built a card stock case, be careful how you squeeze your theremin; you don’t want to crush the 
cabinet. The display will do a little dance, then show “

C  1

“, indicating the C Major scale. More 

on key and scale in a moment.

6.  WAVE YOUR RIGHT HAND

 The right sensor selects the pitch to transmit to your synth. As you 

wave your hand, you should hear notes coming out of your synth! The sensor is sensitive: hold 

OUTER BARREL 

POSTIVE

CENTER PIN

NEGATIVE

200mA MINIMUM

+

-

Содержание ALTURA

Страница 1: ......

Страница 2: ...ORY 8 HOW IT WORKS 9 FEATURE LIST 10 REAR PANEL FEATURES 12 9V DC Power Input 12 Power On Off 12 MIDI Out 12 TOP PANEL FEATURES 13 Power On Indicator 13 3 Digit Display 13 Distance Sensors General 13...

Страница 3: ...the battery into place 2 CONNECT A MIDI DEVICE Plug a standard MIDI cable into the Altura MkII s MIDI OUT jack and connect it to the MIDI IN of your Macchiato Mini Synth or any other device or plug in...

Страница 4: ...bel on the bottom of your Altura After the table there s a brief description of each function with much more to learn in the Reference Manual FUNCTION NUMBER NAME CONTROLLER NUMBER DATA FAR DATA NEAR...

Страница 5: ...the Macchiato will override the Altura Using the Altura MkII will override the knob on the Macchiato Function 3 Note On Velocity The Note On Velocity defaults to 127 upon startup Use the DATA NEAR and...

Страница 6: ...ransmitting Function 7 Send Channel Select The Altura MkII defaults to MIDI Send Channel 1 Use DATA FAR knob to change the send channel Function 8 Arpeggiator Load Preset 18 which includes an 8 note a...

Страница 7: ...ying your scales was never so easy 11 TRANSPOSE THE OCTAVE Turn one of the OCTAVE knobs to cause the Octave display to appear Twiddle the OCTAVE knobs until you see 5 5 This means near the sensor you...

Страница 8: ...arpeggio and save your work in a bank of presets HISTORY In 1920 as L on Theremin 1896 1993 was developing radio equipment for the Soviet government he heard strange sounds coming from some of his cir...

Страница 9: ...electronic instruments and DIY kits we hope the Altura MkII will continue L on Theremin s legacy of inspiring both artists and electronics nerds HOW IT WORKS Our MIDI version of L on s device uses son...

Страница 10: ...ft Distance Sensor MIDI Control Functions 4 Right Sensor MIDI Pitch 5 DATA FAR Adjust 6 DATA NEAR Adjust 7 FUNCTION Select 8 KEY Root Note Select 9 SCALE Mode Select 10 OCTAVE NEAR Select 11 OCTAVE FA...

Страница 11: ...11 ON THE PCB 1 Battery Holder 2 ISP Header...

Страница 12: ...ltura MkII on The red LED on top lights up and the display does a little dance followed by a letter and number indicating the current key and scale Push the button again to switch it off To display th...

Страница 13: ...EE FOR EXAMPLE IT MEANS A letter and a number D 3 KEY letter and SCALE number See those sections below for details In most cases the display defaults to this after 3 seconds Two separate numbers 4f5 3...

Страница 14: ...trigger the Altura dangling cables a guitar neck loose clothes or a swinging pony tail Keep the play zone clear Since the Altura MkII uses sonar and measures the speed of sound in air its performance...

Страница 15: ...nth Functions 2 6 The left sensor behaves much like the Data slider found on most MIDI controllers Use the DATA knobs to set the maximum and minimum values produced by the slider DATA NEAR sets the li...

Страница 16: ...shows a cute spinny thing to represent Pitch Bend Down and Pitch Bend Up Turn the DATA FAR knob to display numbers 0 12 When using a Macchiato Mini Synth by Zeppelin Design Labs this sets the number...

Страница 17: ...the current Velocity value from the left sensor with the current Pitch value from the right sensor and transmits on the currently selected Send channel The Note On Velocity defaults to 127 upon start...

Страница 18: ...ast the same number of milliseconds whether the interval is one semitone or six octaves For pleasant melodic playing use Time values of about 10 25 The Altura MkII sounds most like a theremin at Time...

Страница 19: ...tton Tap it a few times to set the tempo Move your left hand to set a tempo multiplier 1 2 4 or 3 4 and 3 will sound the same in this context Touch the Preset Increment button to toggle back to Arpegg...

Страница 20: ...he tempo by tapping the Tap Tempo button the multiplier value is the number of notes the Altura will fit into the tap interval For example regardless of how many notes there are in your pattern if the...

Страница 21: ...the Altura MkII You can change this easily to add your own scale by hacking the open source software See PROGRAMMING THE ALTURA MkII on page 25 MODE SEMITONES Ionian Major 2 2 1 2 2 2 1 Dorian 2 1 2 2...

Страница 22: ...Altura MkII covers a single octave and its direction will match the previous selection if it was two octaves ascending then now it is one octave ascending If it was two octaves descending then now it...

Страница 23: ...er Arpeggio Setup mode The display shows ARP and the knobs can now be used to define an arpeggio of one to eight steps See Function 8 Arpeggiator on page 19 Tap this button aagain to return to theremi...

Страница 24: ...grammer This is a little circuit board with cables thaat connects a USB port on your computer to the ISP header Pin 1 of the header is the bottom right pin look for a tiny white dot on the PCB This is...

Страница 25: ...on PROGRAMMING THE ALTURA MkII The Altura MkII software was developed in the Arduino integrated development environment IDE If you are an Arduino enthusiast you can download the Altura MkII open sourc...

Страница 26: ...presets for one style of play or the other Theremin Presets Preset Data Function Key Scale Octave Notes Far Near Value Near Far 0 0 127 35 2 C 1 4 4 Descending 1 4 64 1 C 1 5 5 Ascending 2 127 0 64 2...

Страница 27: ......

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