Prese(p)tavox is a synthesizer mode for the 201 Pocket Piano. It is an emulation of the Critter & Guitari Septavox Organ and uses the [septavox~] object, which can be found on its own here: https://github.com/owenosborn/Septavox_pd
Prese(p)tavox uses a text based preset system, navigated with the surprise knob (K3). These presets dictate which waveform and synth mode is currently selected, as well as the functions of the Envelope knob (K1) and Tone knob (K2). Users are encouraged to edit the presets.txt file to personalize their instrument. “Sequence” preset changes with outboard gear using MIDI CC, or embrace the chaos and turn the surprise knob!
Waveforms (Indicated by middle LED):
0. Dirty Sine (Red)
1. Sine (Yellow)
2. Electric Organ (Green)
3. Square (Cyan)
4. Sawtooth (Blue)
5. Dirty Square (Pink)
6. Computer (White)
Synth Modes/Knob Functions (Indicated by right LED):
0. Vibrato (Red, K1 = Rate, K2 = Depth)
1. Slide (Yellow, K1 = Glide Time, K2 = Glide Amount)
2. Two-Octave Arp (Green, K1 = Rate, K2 = Envelope)
3. Swell (Cyan, K1 = Attack, K2 = Decay)
4. Octave Cascade (Blue, K1 = Rate, K2 = Envelope)
5. Slicer (Pink, K1 = Rate, K2 = Pattern)
6. Pipe Glide (White, K1 = Glide Time, K2 = Modulation)
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Changelog:
V.2.0: Major update!
Sound is cleaner.
Computer waveform is now selectable.
2-Octave Arp, Octave Cascade, and Slicer modes can now be either synced to an external clock source (in this case, the 201’s master tempo). The tempo range of these modes in unsynced mode has also been increased to allow for slower rates. Sync is enabled by default.
Presets now contain waveform, mode, sync on/off, octave, and tuning.
Waveform order in Pipe Glide now matches other modes.
Waveform gains have been tweaked.
Slider mode decay time decreased.
Swell mode knob range tweaked to avoid clicks at minimum settings.
Tweaked decay behavior in 2-Octave Arp and Octave Cascade modes.
V.1.01 Fixed typo in the README
V.1.0: Added READ ME.txt which explains presets as well as an alternate version of the patch which removes tune knob, remaps Septavox knobs 1 and 2 to Envelope and Tone knobs, and syncs preset changes to 201 master tempo. Updated Patchstorage image to instructional graphic created by Critter & Guitari (Thanks!).
V.0.4.1: Tweaked tune knob behavior to be pretty much identical to the tune knob on the OG Pocket Piano.
V.0.4 Increased tuning range from 1 to two octaves and increased knob slew to avoid stepping.
V.0.3 Removed vestigial [adc~] that was causing increased noise for some users.
V.0.2: Remapped SeptaKnobs 2 and 3 to KT and K1 so that K2 can control synth tuning, added LED indication of currently selected waveform and mode, stock presets now cycle through all 49 possible waveform/mode combinations.
V.0.1: Release!
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Listing image made by Critter & Guitari
Thanks! This patch is a lot of fun
@dseck89 Glad you’re enjoying it! :)
Thanks, love the sounds !
Is there a way to sync the “Two-Octave Arp” and “Octave Cascade” to the MIDI clock received with MDI in, it seems that there is no syncing right now with those presets ?
That’s correct; this patch uses the pure data object [septavox~] which made by Owen at Critter & Guitari. While it uses the same code as the original hardware and sounds pretty much identical to it there is currently no option for midi clock sync.
Here’s a reference for the controls and waveform and mode colors.
Attachment Septavox-on-201-controls-6632d54c66a46.png
Hi, is anyone else having issues with this patch? When turning the surprise knob both LEDs 2 and 3 change in seemingly random order, adding unwanted patterns and synth modes. Any help is appreciated!
@simon_kb Changes made to the surprise knob are quantized to the 201’s master BPM and updated every 16th note. This is meant to make switching between presets sound more musical, but it does mean that at slower tempos it can be harder to zero in on a specific preset. This can be mitigated by either increasing the tempo or editing the presets.txt file to contain only the desired mode/waveform combinations. Alternate preset configurations can be found in the folder named “choices”, as well as a file called help.txt which explains the preset system in greater detail.