Sequential Pro 3 - Osc Frequency Modulation Lookup
Lookup tables for modulating oscillator frequency with LFO, Matrix and Sequencer
Precision Oscillator Tuning Lookup Table
Below is a Lookup Table for modulating the Oscillator Frequency from the Pro 3 Mod Matrix, LFOs, or Gated Sequencer. You can use this reference to quickly lookup common musical intervals and set them precisely for modulation.
The values from the Mod Matrix and LFO are same in this unit, however, when routing from the sequencer, the resulution/scaling is different.
Osc Course Frequency Modulation:
For Osc Course Frequency, from the Matrix/LFO, each value tick is equivalent to 50 cents. In the sequencer, each value tick is equivalent to about 12.5 cents for course frequency modulation.
Osc Fine Frequency Modulation:
For Osc FineFrequency, from the Matrix/LFO, each value tick is equivalent to about 5.4 cents. In the sequencer, each value tick is equivalent to about 1.3 cents for fine frequency modulation.
| Semitones |
Abbv. |
Interval |
Osc Course |
Osc Course |
|
Osc Fine |
Osc Fine |
| |
|
|
Matrix / LFO |
Sequencer |
|
Matrix / LFO |
Sequencer |
| +1 semitone |
m2 |
minor 2nd |
+2 |
+8 |
|
+18.5 |
+74 |
| +2 semitones |
M2 |
Major 2nd |
+4 |
+16 |
|
+37 |
+148 |
| +3 semitones |
m3 |
minor 3rd |
+6 |
+24 |
|
+55.5 |
+222 |
| +4 semitones |
M3 |
Major 3rd |
+8 |
+32 |
|
+74 |
+296 |
| +5 semitones |
P4 |
Perfect 4th |
+10 |
+40 |
|
+92.5 |
+370 |
| +6 semitones |
A4/D5 |
Tritone |
+12 |
+48 |
|
+111 |
+444 |
| +7 semitones |
P5 |
Perfect 5th |
+14 |
+56 |
|
+129.5 |
+518 |
| +8 semitones |
m6 |
minor 6th |
+16 |
+64 |
|
|
|
| +9 semitones |
M6 |
Major 6th |
+18 |
+72 |
|
|
|
| +10 semitones |
m7 |
minor 7th |
+20 |
+80 |
|
|
|
| +11 semitones |
M7 |
Major 7th |
+22 |
+88 |
|
|
|
| +12 semitones |
Oct |
Octave |
+24 |
+96 |
|
|
|
| |
|
|
|
|
|
|
|
| +17 semitones |
Oct+4 |
Octave + 4th |
+34 |
+136 |
|
|
|
| +19 semitones |
Oct+5 |
Octave + 5th |
+38 |
+152 |
|
|
|
| +24 semitones |
2 Oct |
Two Octaves |
+48 |
+192 |
|
|
|
| |
|
|
|
|
|
|
|
| +29 semitones |
2 Oct+4 |
Two Octaves + 4th |
+58 |
+232 |
|
|
|
| +31 semitones |
2 Oct+5 |
Two Octaves + 5th |
+62 |
+248 |
|
|
|
| +36 semitones |
3 Oct |
Three Octaves |
+72 |
+288 |
|
|
|
| |
|
|
|
|
|
|
|
| +41 semitones |
3 Oct+4 |
Three Octaves + 4th |
+82 |
+328 |
|
|
|
| +43 semitones |
3 Oct+5 |
Three Octaves + 5th |
+86 |
+344 |
|
|
|
| +48 semitones |
4 Oct |
Four Octaves |
+96 |
+384 |
|
|
|
Note: All of the LFOs are unipolar (they generate positive values only), EXCEPT FOR the Triangle, which is bipolar - it swings to both positive and negative values. In the current version of the manual, it states the Sample/Hold Random LFO is bipolar too, but I think that might be a misprint, based on my testing?... seems to be unipolar. So, if you're modulating OSC FREQ with the triangle, you may want to double the values listed above, if you want the frequency to swing the full interval in both directions... otherwise it will swing half positive, half negative.