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7.  MIDI FUNCTION SELECT

The FUNCTION knob determines what type of MIDI data the left sensor will produce. The available 
functions are:

1.  Pitch Bend
2.  Modulation
3.  Note-On velocity
4.  Channel volume
5.  Portamento Time
6.  X-Y Mode
7.  Channel Select
8.  Arpeggiator

A label on the bottom of your Altura MkII reminds you of these functions. 

Following is detailed information about each MIDI function. Please also see the sections “Left Distance 
Sensor – MIDI Control Functions” on page 14 and “8, 9. Data Far And Near Adjust” on page 15 
for general notes applicable to all functions.

FUNCTION 1: PITCH BEND

Function 1 emulates the Pitch Bend wheel on a conventional MIDI controller. The Altura MkII 
sends MIDI values of -8184 to +8184 based on left sensor readings, tagged as Pitch Bend data 
(Controller #1) on the currently-selected Send channel. The display 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 of semitones the pitch will change at maximum bend 
up and down. The Altura sends this information to the Macchiato using the undefined Control 
Change (CC) #20. If you are using a different synthesizer that happens to make use of CC #20, 
then turning this knob might have an unexptected effect. If so,  avoid touching this knob when in 
Pitch Bend function.

Turn the DATA NEAR knob to display numbers 

0 - 127

. This changes the size of the Neutral 

Zone that separates the Bend Up zone from the Bend Down zone.  On startup, the Altura MkII 
defaults to Function 1: Pitch Bend, and the neutral zone will default based on the physical 
position of the DATA NEAR knob. At 127, you will find a large piece of air where the pitch 
remains unaffected. Change it to zero and the neutral zone will essentially disappear.

"NEUTRAL” OR

NO BEND

FULL BEND

UP

FULL BEND

DOWN

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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