RingTone 2.0o - master ringmod / wavefold / EQ (Digitone mk1)

Master effects for the Elektron Digitone mk1 / Digitone Keys, OS 1.43:
ring modulation, wavefolding and a tone EQ, with a DIGI FX page on the master
page tree (FUNC+LFO) and output metering.

Unofficial and unsupported; not affiliated with Elektron. Flashing modified
firmware is at your own risk.

What's in it

asset	what
core-dn1-2.0a.elemod	required core (the hook bus)
digiring-1.0.elemod	master ring modulator / tremolo
digifold-1.0.elemod	master wavefolder (triangle fold), on/off + amount
digieq-1.0.elemod	master tone tilt (low/high gain)
digimeter-1.1.elemod	output level metering (drawn on the DIGI FX page)
digictl-1.2.elemod	the DIGI FX master page that controls them

Signal order on the master mix: ring -> EQ -> fold.

Use

• FUNC + LFO cycles the master pages; the fourth entry is DIGI FX.
• Encoders A-H edit EQ on / low / high, ring on / depth / frequency,
  fold on / amount. LEVEL toggles the meter.
• The effects are on by default: a gentle EQ tilt, ring at 90 Hz / 40%, fold at
  amount 0 (1.0x, no fold), and the L/R meter on the page.

Install

Build the custom OS on your machine with
elekloader from your own stock
Digitone_and_Digitone_Keys_OS1.43.syx plus these mods -- no firmware is
distributed here. Add the .elemods in elekloader's window (with core-dn1)
and build; then flash the resulting .syx with Elektron Transfer.

Recovery: the bootloader is never changed -- hold FUNC at power-on,
press TRIG 4 (OS UPGRADE), send the stock .syx.

Status

Work in progress. Tested on hardware (a Digitone mk1) and in the digiemu
emulator (boots, settles, dsp_running=2; the page draws as the fourth master
entry). Upcoming fixes: the encoder acceleration for the parameters, and
saving the state on the pattern level (the settings currently reset at
power-off).

No firmware is included in this release.