PO-32 synth engine FX

toitoy685 views4 posts
  • toitoy

    @magnus Hello. I watched the last Cuckoo video about PO-32 and he showed wonderful FX that are made on the synth engine. Please tell us more how are the achieved? Are they possible in Microtonic? Is there some list or manual about them?

    YouTube Video
  • Magnus Lidström

    They are possible to replicate in Microtonic, but some of them may be very hard to do as they change a lot of parameters simultaneously.

    I might as well document all the effects here and now.

    All parameter changes performed by the effects applies to all drum channels simultaneously. Many effects change the pitch (just as the left knob does) and this means changing all three frequency sliders by the same amount (osc, noise and eq). Also all envelope parameters (osc attack + decay & noise attack + decay) are adjusted inversely by 1/4 of the amount that the frequency changes and osc mod rate is changed by 1/2 of the amount. This is so that drums sound stretched out and slower when pitching them down and faster when pitching them up.

    1. Half Rate

    Slows down sequencer playback tempo to half and pitches sounds down one octave.

    2. Distortion

    Sets distort to max and lowers level by 1/8 of full range.

    3. Squash

    Increases decay (both noise and osc) by 1/4 of full range and lowers level by 1/16.

    4. Echo Fade

    This effect is achieved by repeating the current sequencer step every 1/8th, lowering level by 1/8 (of full parameter range) for each of the four first eight steps and increasing them back to full level on the next four steps (then repeating over). Also attack and decay parameters are increased slightly (attack by 1/128 per step and decay by 1/16) when level is dropped to "smear" the sound a bit. Cause it sounds cool.

    5. Pitch LFO

    Modulates the pitch (including envelopes etc as described above) by a triangle waveform performing a complete cycle every 1/8th of a bar. Modulation amount is -1/8 to +1/8 of full frequency slider range.

    6. Eq Sweep

    Sweeps eq frequency from minimum to maximum over the time of a full 4/4 bar. Also eq gain is set to 1/2 (i.e. +/-0 dB) and then ramped up to maximum (+40 dB) over the first two quarters.

    7. Mega Morph

    This is like turning both the left and right knob on the PO-32 from minimum to maximum over the full 4/4 bar. In other words, changing pitch from -1/8 to 1/8 of full frequency range (including effects on envelopes etc described above) and morph fully between left and right setting.

    8. Pitch Bend Up

    Glides pitch up by two octaves over the time of 1/8th of a bar. (One octave is roughly 1/10 of the frequency range.)

    9. Punch

    A combination of the following parameter changes: mix is increased by 1/4 (in other words, more noise), noise attack and decay is decreased by 1/4 and osc decay is increased by 1/8.

    10. 6/8 Quantize

    This is a pure sequencer effect where only three of each group of four 1/16th notes are played out, evenly spaced over each quarter. (It uses the first, second and third 1/16th note, unless there is no trigger on the third in which case it uses the fourth instead.) In other words: making triplets.

    11. Beat-repeat

    Simply repeats the current sequencer step every 1/24th of a bar.

    12. Beat-repeat Faster

    Repeats the current sequencer step even faster: every 1/32th of a bar.

    13. FM

    osc mod mode is set to "sine", osc mod amount is set to full (= +/-4 octaves), osc mod rate is set to 3/4 of full range (circa 200 Hz), osc and noise attack is increased by 1/16 of full range and level is decreased by 1/16 of full range.

    14. Granular

    Retriggers every note eight times extremely fast (around 11ms between each). Also decreases level by 1/16 of full range.

    15. Reverse

    Sets noise env mode to "exponential" and increases all osc and noise attacks by 1/2 of full parameter range.

    16. Bouncing ball

    A sequencer effect that repeats the current step faster and faster for the first half of a bar, and then slower and slower. Also scales midi velocity down by 1/32 of full velocity for every trigger during the first half and increases back to 100% during the second half. (Btw, this is the only effect that scales velocity and not the level parameter.)

  • Steven Sclafani

    The effects in the PO-32 are brilliant. The Bouncing Ball used sparingly can add nuance and flavor to a groove, but hold it down and it really mangles the beat in a super cool way.

  • Sezare Palace

    Hi. New owner of Microtonic and PO32.
    Thanks @Magnus for great details here!

    I wish Megamorph could be without pitch.
    I don't know if it was mentioned before but I found a workaround inverting P032 pitch / frequency values for morph settings, in order to compensate PO32 0-100 pitch slide Magamorph fx.

    P032 pitch 100 => +15 semitones for left morph (compensate Megamorph pitch 0)
    PO32 pitch 0 => - 15 semitones for right morph (compensate Megamorph pitch 100)

    Plocked pitches are not effective with Megamorph.

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