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Scale Groups and Learning

 

When you Learn a new scale with the 

Scale

 switch set to 

12TET 

or 

Octave

, the constraints described in the Scale Groups 

section (page 13) will be applied automatically to the notes you enter.  

To demonstrate how the choice of the Scale Group will effect a new scale, we’ll take a simple example of a scale and show 

how it would behave differently if it were added using each of the three Scale Groups. You may want to follow along on your 

Ensemble Oscillator. 

The notes that will be Learned are a C2, a G2, and a slightly flat A2 that’s between a G#2 and an A2, 

but closer to an A2. (In case you're not familiar with this notation, C2 means a C note in the second octave of human 

hearing.) 

In the 

12TET 

group, all notes are quantized to the 12-note per octave scale, so the slightly flat A2 will become an A2. This 

means the intervals in the scale will be: 

  

Fifth (C2

G2) 

 

Major second (G2

A2) 

 

(Repeat) 

If you tune the root note to C0 (using the 

Pitch

 knob or jack), then the notes the oscillators are allowed to play will be: 

 

C0, G0, A0, E1, F#1, C#2, Eb2, etc. 

In the 

Octave 

group, the notes are not quantized, so the notes will stay C2, G2, slightly flat-A2. However, the 

Octave 

group 

forces the intervals to add up to an octave (or a multiple of an octave), so a “hidden” C3 will be added at the end. Therefore 

the interval sequence will be: 

  

Fifth (C2

G2) 

 

Slightly-flat major second (G2

A2-ish) 

 

Slightly-sharp minor third (A2-ish

 C3) 

 

(Repeat) 

  

If you tune the root note to C0, then the notes the oscillators are allowed to play will be: 

 

C0, G0, slightly-flat-A0, C1, G1, slightly-flat-A1, C2, G2, slightly-flat-A2, C3, etc. 

In the

 Free

 group, the notes are not quantized, and no extra intervals are added. Thus the interval sequence will be: 

  

Fifth (C2

G2) 

 

Slightly-flat major second (G2

A2-ish) 

 

(Repeat) 

If you tune the root note to C0 (using the 

Pitch

 knob or jack), then the notes the oscillators are allowed to play will be: 

 

C0, G0, slightly-flat-A0, slightly-flat-E1, bit-more-flat-F#1, bit-more-flat-C#2, even-flatter-Eb2, etc. 

It’s no longer practical to represent the allowed notes using the western system of notation. 

Restoring a Factory Scale 

If you want to restore a scale to the factory default, set the 

Scale 

knob and switch to the scale you wish to restore. Then 

press and hold the 

Learn 

button for four seconds. The button will flash blue and the factory scale will be restored. This can't 

be undone, any scale you had programmed into that slot in that group will be lost. 

Shift Features 

There are four features accessible by holding down the 

Shift 

(

Freeze

) button while turning a knob. These features are 

called the 

Shift 

features: 

Shift 

Balance = 

Crossfading

 controls the steepness of the crossfading curve, from sharp to smooth. 

Shift 

Spread =

 

# Oscillators 

sets the number of active oscillators, from one to sixteen. 

Shift

 + 

Twist = 

Freeze Mode 

changes which subset of oscillators gets frozen: odds, lower half, or root. 

Shift 

Warp =

 

Stereo Mode

 changes the way the oscillators are panned: even/odd, low/high, or root/others. 

The 

# Oscillators

Freeze Mode and Stereo Mode

 features have a discrete number of values to choose from. When you 

hold down the 

Freeze

 button and turn one of these knobs, the 

Freeze

 button will flash white whenever their values change. 

When you’re done adjusting a knob, you can let go of the 

Freeze 

button. If the knob is now in a different position than it was 

when you pressed 

Freeze

, then the knob’s normal feature will still be set to the value it was before you adjusted the 

Shift

 

feature. That is to say, when you let go of the knob, the sound won’t immediately jump. Instead, the knob’s normal feature 

will keep its old value until you turn the knob back to the position it was in before you pressed 

Freeze

. Until you do this, the 

Freeze

 button will flash to indicate that the knob is out of position. The more knobs are out of position, the faster the 

Freeze

 

button will flash. When you turn a knob back to its original position, the 

Freeze

 button will briefly flash green. 

The values you set with the 

Shift

 features are saved across powering down and back up.  

Page   of 

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Содержание Matthias Puech Ensemble Oscillator

Страница 1: ...rack format module is a unified polyphonic voice of sixteen complex oscillators sharing the same sine based waveforms The oscillators take their frequency relationships from a selected scale crossfading smoothly from one note to the next The Ensemble Oscillator easily creates a wide variety of sounds ranging from aggregates of pure sine waves to pulsar synthesis or pristine harmonic tones and lush...

Страница 2: ... own scales manually or with a CV Gate keyboard Three Twist phase distortion effects Three Warp wave distortion effects Three algorithms of Cross FM for modulating the oscillators with each other Mono or stereo output with selectable panning algorithm Freeze button and jack to freeze the frequency of some of the oscillators with selectable algorithm Two 1V oct inputs Pitch non quantized and Root q...

Страница 3: ...2 Create your own Scale in Learn Mode using a keyboard 10 Detailed Concepts and Usage 11 Scale Groups 13 Learn Mode Advanced Concepts 14 Shift Features 15 Crossfading 16 Oscillators 16 Freeze Mode 16 Stereo Mode 17 Firmware and Calibration 17 Upgrading Firmware audio bootloader 17 Calibrating 1V oct jacks 18 Button RGB color balance adjustments 18 Factory Reset 18 Electrical and Mechanical Specifi...

Страница 4: ...B jacks To use the module in mono just patch into the Out A jack both outputs will be summed into it Scales The currently selected scale determines which pitches the oscillators are allowed to take A scale can be thought of as a series of notes In the Ensemble Oscillator the notes can be spaced by any amount not necessarily just by half steps whole steps etc like in western music scales Also the r...

Страница 5: ...te These are used in Learn mode See Tutorial 2 Create Your Own Scale with Learn Mode page 9 and the Learn Mode section page 14 Shift Functions There are several advanced features that won t need to be adjusted often but can make important and subtle changes to the module s behavior Take a look at the faceplate and notice that the word Shift highlighted in gold is written underneath the Freeze butt...

Страница 6: ...knob switch and jack The Scale knob selects the scale to which the oscillators are quantized See the Scales and Oscillators section page 11 for details about how scales are used There are 30 pre programmed scales on the Ensemble Oscillator arranged in three groups of ten scales each You can also program your own scales see Learn Mode page 14 The Scale knob has ten positions each one selects a scal...

Страница 7: ...epending on the position of the Twist switch Ramp morphs the phase to an increasingly steep sawtooth and beyond Pulsar compresses the phase of the sine wave to create narrow pulses Crush bit crushes the oscillator phase The Twist jack responds to voltages from 5V to 5V Negative voltages reduce the amount of effect and positive voltages increase the amount of effect with respect to the knob positio...

Страница 8: ...e Pitch Root Spread Scale or Detune knobs or jacks However frozen oscillators will still respond to waveform and mixing panning changes via the Twist Warp Cross FM and Balance knobs and jacks The Stereo Mode and Oscillators shift functions allow you to adjust the panning and the enabled disabled state of frozen oscillators When the Freeze button is pressed or a trigger is detected on the Freeze ja...

Страница 9: ...programmed a scale It s saved in the group and slot the Scale knob and switch point to You can recall it even after you power down 13 Let s listen to the notes of the scale Notice that the Freeze button is flashing see inset below Turn the Root knob up and or down until the Freeze button flashes green Now you can slowly turn Root to play the notes of the scale in order 14 Listen to how the notes s...

Страница 10: ...ce for a brief moment The Learn button will flash white each time a note is added 7 Add more notes if you wish maximum of 16 8 When you re done tap the Learn button It ll flash green to indicate your scale saved 9 That s it You ve programmed a scale It s saved in the group and slot the Scale knob and switch point to You can recall your scale even after you power down 10 Listen to the notes of your...

Страница 11: ...jack With Spread all the way down the oscillators are all tuned to the same pitch As Spread is turned up the space between the oscillators is widened Quantization When an oscillator is tuned between two allowed notes which is most of the time instead of snapping to the closest note like a normal quantizer would do the oscillator produces two pitches one tuned to each of the nearest allowed notes T...

Страница 12: ...age of 12 19 Scale Result Oscillators Scale Result Oscillators Spread Spread Root Scale Result Oscillators Spread Root Root Turning Spread up Turning Root up Pitch Pitch Pitch Scale Result Oscillators Spread Root Turning Pitch up Pitch 8 shown Approx note Frequency 1 0 0 H z 2 0 0 H z 4 0 0 H z 8 0 0 H z 1 6 k H z 3 2 k H z Frequency 1 0 0 H z 2 0 0 H z 4 0 0 H z 8 0 0 H z 1 6 k H z 3 2 k H z Freq...

Страница 13: ... own scale in the Octave group and the highest note you enter is not exactly a whole number of octaves above the lowest note then the module will automatically insert an extra interval at the end to complete the octave This means that whenever the sequence of intervals repeats with a scale in the Octave group the pitches will always be one or more octaves higher 12TET group factory scales Interval...

Страница 14: ...Learn mode The other jacks and knobs work as normal Twist and Warp modify the waveshape and the Root jack offsets notes as they re entered Be aware if you have CV patched into the Scale jack because it effects where the scale is saved Coarse Tuning As described in the tutorial you can fine tune the last note you entered by holding down Learn and turning Fine Tune You can also coarsely tune the las...

Страница 15: ...lat E1 bit more flat F 1 bit more flat C 2 even flatter Eb2 etc It s no longer practical to represent the allowed notes using the western system of notation Restoring a Factory Scale If you want to restore a scale to the factory default set the Scale knob and switch to the scale you wish to restore Then press and hold the Learn button for four seconds The button will flash blue and the factory sca...

Страница 16: ...g between notes more seamless The highest setting knob at fully clockwise applies maximum Crossfading The two nearest allowed frequencies are always played crossfading normally based on proximity This setting makes it difficult to dial in just one note but it offers maximum smoothness when adjusting Root or Spread Oscillators The Ensemble Oscillator can potentially use 16 oscillators to produce so...

Страница 17: ...imate blue and white 8 If the buttons turn red while the file is playing there was an error a Stop the file and rewind to the beginning b Check the cable is plugged in tightly c Tap the Learn button It will go back to flashing green d Play the file again from the beginning 9 If the file loads successfully the Ensemble Oscillator will do an animation of a rainbow of colors on both buttons 10 Power ...

Страница 18: ...asy 1 Power off the module 2 Flip all four switches to the center position 3 Turn all knobs to center 4 Hold down the Freeze button and power up the module The two buttons will turn white or a hue close to white 5 Use the knobs to adjust the red green and blue balance of each button The center position makes no color adjustment left of center reduces the amount of a color right of center boosts th...

Страница 19: ...tputs Frequency range 0Hz DC 20kHz Typical amplitude 10Vpp Maximum amplitude 18 5Vpp 1V oct inputs Root and Pitch Voltage range 2V to 6V 8 octave range Factory calibrated to 1 00V oct Per jack user calibration allows from 0 7V oct to 1 3V oct CV inputs other than 1V oct Voltage range 5V to 5V Gate inputs Trigger threshold 2 5V User memory non volatile Scale slots 30 Shift feature settings 1V oct c...

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