rosetta-os

Akai S2000 (S-2000) mod: Rosetta OS, a custom OS on top of OS 2.0 that boots from a Gotek. Reverb, echo and reverse delay without the EB16 board, live input FX, a synth rompler, MPC-style menus. Tested on real hardware.

Sony HR-GP5 / HR-MP5 mod: Rosetta OS custom firmware, 15-voice polyphonic MIDI synth on the TMS57002 DSP, new menus, Hex Girl boot. Tested on hardware.

Roland D-70 mod: custom OS with live synth pages, DLM page, new effects on the effects chip (drive, bit crush, decimator, rectifier, resonant filters), custom U-110 cards and a keyboard fix. Patches your own EPROM dumps. No Roland code included.

Custom firmware turning the Roland SP-808 Groove Sampler into a guitar looper / MPC-style sampler. Reverse-engineered H8S OS, homemade H8S assembler/disassembler tools, and disk-flashable builds that install straight from a Zip or ZuluIDE SD card. Adds MPC sample modes, looper and keyboard modes, and new menus.

Custom OS for the Roland VS-840EX: sampler / looper / synth conversion, port of the SP-808 Rosetta OS (H8S + ESP2). Discord: discord.gg/R3CQkFdRtf

Roland GP-16 mod: custom OS with 60 pedal + 12 amp voicings, real knob names and live 0-10 knobs, rack-as-one-pedal / pedal+amp rig / 12-slot pedalboard, cab sims, A/B/Y box, boot dragon. Drop-in flash chip, no wires. Bake it into your own ROM dump. No Roland code included.

Roland OCTA-CAPTURE (UA-1010) mod: custom firmware for the Octa Capture audio interface. Rosetta boot screen works on hardware; per-channel EQ/comp channel strip in progress. Built from Roland's own v1.51 update.

Casio SK-1 (SK1) mod: replace the preset ROM with an EEPROM and load your own sounds from WAVs or Akai/Roland sample CDs, with custom loops. Works on a real SK-1.

Roland PRO-E mod: Rosetta OS custom firmware with a Juno mode, Juno chorus / delay / lo-fi / drive on its reverb chip, SYNTH EDIT on the panel and new styles from MIDI. Tested on a real PRO-E. No Roland code included.