oscillr/DUELL v1.2

DUELL 1.2

on GitHub

DUELL
MultiMorphing Bitimbral Synthesizer
by OSCILL/R

DUELL 1.2 is an update for the M-VAVE FM-1. Up to 16 voices a part from one shared voice pool over both cores, and it works with newer FM-1 units.

What is new

More voices

• Both parts play from one shared pool of voices, spread over both cores. The old limit of 8 voices a part is gone: a part plays as many voices as the pool holds, up to 16.
• FM6 plays up to 12 voices (6 while the TWIN FILTER is COMB). VOICE is no longer held to 4.
• The number on the screen is what really plays.

Fair sharing between the parts

• Each part's AVAILABLE VOICES shows how many more notes that part can play right now. It drops when the other part plays.
• A key on a part that shows 0 takes the oldest note of the part that holds more.

Fixed

• No crackle when chords start, when knobs or MIDI CCs move, or when the MORPH fader moves.
• WAVE chords in CHORD mode play clean.
• ANALOG no longer clicks on loud parts.
• WHEEL no longer freezes with 8 voices.
• The panel lights stay on while the unit saves.
• FM6: OP MODE, OP TUNE and OP ENV come right after the EDIT pages.
• Updated SCALE and CHORD keyboards.
• UI improvements: the header fits two-digit voice numbers, the voice number stays steady with the arp, lines under each parameter, text aligned on its baseline.
• Newer FM-1 units with the UC25HQ80 flash chip can save and update (issue #3).
• The installer finds any FM-1, whatever its MIDI port is called.
• Other FM-1 firmwares can be installed from DUELL.

Read this before you flash

• DUELL has run on two FM-1 units, the author's, and more than 100 people have installed it through the Firmware Hub. The FM-1 has a single copy of its firmware and no known rollback besides the way back to the official firmware (V15).
• You install at your own risk. No warranty (GPL-3.0). Use a data USB cable straight into the computer and never interrupt the write.
• DUELL is not affiliated with M-VAVE. M-VAVE's firmware is not distributed here: to go back you download V15 yourself from https://www.m-vave.com/download.
• Recovery notes: docs/RECOVERY.md.

Assets

SHA256: 031a3feef898b407537214f2694cb0c7e5014e2c02553c8d57b4865308aa3690  duell-1.2.fwsc

Links

• Installer: https://oscillr.github.io/DUELL/install/
• Web editor: https://oscillr.github.io/DUELL/editor/
• Emulator: https://oscillr.github.io/DUELL/emu/

Known limits: docs/KNOWN_LIMITS.md. Bugs: the report form.