4ms Company Matthias Puech Ensemble Oscillator Podręcznik użytkownika - Strona 13
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Detuning
After quantization, the Detune feature is applied. The first (root) oscillator is not detuned at all. The other odd-numbered
oscillators are detuned upwards, and the even-numbered oscillators are detuned downwards. Going from lowest to highest,
each oscillator is detuned a little more than the previous one. If an oscillator is outputting two pitches because its pre-
quantized frequency is between two notes in the scale, both pitches will be detuned by the same amount and in the same
direction, regardless of whether they are odd or even-numbered.
Scale Groups
There are thirty scales in the Ensemble Oscillator, arranged into three groups of ten each. The group is selected using the
Scale switch, and the scale within the group is selected using the Scale knob. The three groups are 12TET, Octave, and
Free. Each group has different properties.
12TET scale group
In the 12TET group, all the intervals are equal-temperament semitones and multiples of semitones (whole-steps, minor
thirds, octaves, etc.) Only notes from a 12-tone equal temperament scale will appear, but scales don't necessarily have to
repeat every octave.
12TET group factory scales Intervals
Slot 1
Octaves
Slot 2
Octaves and fifths
Slot 3
Major triad
Slot 4
Minor triad
Slot 5
Minor triad+
Slot 6
"Bluesy 1"
Slot 7
Major 7th 3rd inv.
Slot 8
Circle of Fifths
Slot 9
"Bluesy 2"
Slot 10
Semitones
Octave scale group
The Octave scale group allows any interval but forces each scale to repeat every N octaves. Just intonation and other
octave-repeating temperaments can easily be entered here, as well as scales that repeat every 2 or 3 octaves. If you create
your 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.
Octave group factory scales
Slot 1
Harmonics 2-3 of the harmonic series
Slot 2
Harmonics 4-7 of the harmonic series
Slot 3
Harmonics 8-15 of the harmonic series
Slot 4
Odd Harmonics 1-8 of the harmonic series
Slot 5
Do Fa So (Pythagorean), just intonation
Slot 6
Do Re Fa So La (Pythagorean), just intonation
Slot 7
First just ratio scale
Slot 8
Second just ratio scale
Slot 9
5TET
Slot 10
7TET
P8, repeat
P5, M3, repeat
M3, m3, P4, repeat
m3, M3, P4, repeat
m3, M2, M2, P4, repeat
m3, M2, P4, M2, repeat
m2, M3, m3, M3, repeat
P5, repeat
m3, M2, M2, repeat
m2, repeat
Page
Example Notes (assume root note is C0)
C0, C1, C2, ...
C0, G0, C1, G1, C2, ...
C0, E0, G0, C1, ...
C0, Eb0, G0, C1, ...
C0, Eb0, F0, G0, C1, ...
C0, Eb0, F0, A#0, C1, ...
C0, C#0, F0, G#0, C1, ...
C0, G0, D1, A1, E2, ...
C0, Eb0, F0, G0, A#0, C#1, D#1, ...
C0, C#0, D0, D#0, E0, F0, ...
Comments
aka. perfect fifths
ratios 1:1, 4:3, 3:2, 2:1
ratios 1:1, 9:8, 4:3, 3:2, 27:16, 2:1
ratios 1:1, 3:2, 4:3, 5:4, 2:1
ratios 1:1, 5:4, 4:3, 3:2, 5:3, 7:4, 2:1
five notes per octave, equal temperament
seven notes per octave, equal temperament
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