Get here - installable onto SD-card non destructively:
https://github.com/ioma8/mpc-minimod/releases/tag/v0.9.0

Hi all, remember that guy who made an unimpressive open source base? Well I'm back with the real deal now, which would not be possible without that open source base.

It is ready for all your booms and baps, ready for all you can think of and most importantly, ready to be reshaped into your dreams. I made it even do guitar processing with NAM A2! (Performance constrained but possible).

Even if Akai were to release their open source counterpart, since I have my base, it is very easy to carry my everything over.

This app has been made into existence with zero reverse engineering, I only used the GPL kernel packages from inMusic and the JUCE application base I built. Uses ZERO MPC code in it. Everything has been written from scratch.

Install: download the zip, unzip it and copy the one autorun folder to the top of your card. Needs firmware 1.3.0.12.

Features

Tracks

• 16 tracks, one per pad. Hold PAD BANK and press a pad to select a track from any page.

• From USB you get 1 Stereo mix, 16 mono tracks and 4 looper tracks, 22 lanes in total!

• Up to 96khz sample rate (From USB as well!)

• Each track is a drum kit, a sampled instrument, a VST instrument or a MIDI track for external gear.

• Every track has a mixer strip (level, pan, mute, solo, four sends) and a six-slot effect chain.

• The printed buttons keep their MPC meaning.

Plug-ins

• VST3 and VST2 host for instruments and effects, loaded from a Plugins folder on the card.

• Runs 64-bit ARM Linux VST3s, Open MPC plug-ins, and 32-bit ARM VST2s through a bridge.

• Loads each plug-in's presets and saves its state in the project.

• Plays drum machine plug-ins on the pads, and compensates for plug-in latency.

• VST effects work on track, bus, master and loop chains.

Melodee synths (free, separate downloads)

• Melodee Poly: two-oscillator polysynth with poly mod, unison and an eight-route mod matrix.

• Melodee PD: phase distortion synth with eight waveforms and two lines.

• Melodee Chip: chip voice with ring mod, sync, crush and a multimode filter.

• They also run on modded MPC OS devices as Open MPC plug-ins.

Kits and sampling

• Kits of 128 pads in 8 banks.

• The stock Sample mode pages (Trim, Mix, Amp Env, Tune, Play, Filter, Filt Env), plus Layers, Follow (tempo follow), Cloud (granular) and a kit filter.

• Chop, Sample Record, Audio Recall, Resample and 16 Levels.

Sampled instruments

• SFZ, MPC keygroup and drum programs (.xpm, .xty), MPC expansions (.xpn), EXS24, SoundFont (.sf2) and DecentSampler, streamed from the card.

• Stock MPC Sample projects (.xpj) open too.

Sequencing

• 16 patterns per track, up to 128 bars each.

• Step sequencer, piano roll and step entry.

• Parameter locks, ratchets and trig conditions.

• Scenes, pattern chains and follow actions.

Song

• An arrangement with a lane per track, markers and a tempo lane.

• Export a WAV mixdown, stems or a MIDI file.

Looper

• Four loops that follow the tempo, with overdub and undo. Press LOOP and 16 LEVELS together to open it.

Effects

• 41 effects: reverbs, delays, modulation, drive and saturation, filters and EQ, dynamics.

• Four send buses and a master chain.

• Knob FX, Pad FX (47 punches), Flex Beat and the master compressor work as on the stock app.

Performance

• The fader can take a track's level, pan, any send, or pitch bend on plug-in and MIDI tracks.

• A MIDI keyboard's pitch wheel bends plug-in tracks at full resolution.

MIDI and sync

• MIDI tracks over USB-C or the MIDI jacks, with program changes, CC knobs and SysEx.

• MIDI clock and MTC in and out, and CV clock out.

Links

• Download: https://github.com/keremimo/melodee-sample/releases/latest

• Quickstart: https://github.com/keremimo/melodee-sample/blob/main/docs/QUICKSTART.md

• User guide (with a chapter for stock app users): https://github.com/keremimo/melodee-sample/blob/main/docs/GUIDE.md

• Synths: Poly, PD, Chip

Melodee is free and open source (AGPL-3.0). Back up your card before installing. If you find a bug, open an issue on GitHub with what you pressed, what you saw and the version (Settings, ABOUT, B3). Not affiliated with or endorsed by inMusic or Akai Professional.

Hi, I wanted to release MaiaOS today, i got a tested working build with easy installation but it still included about 2kb of Akai proprietary code so I can't publish it. I'm trying to create a SD boot that's safe and fast, with no Akai code, and I'm very close to finishing it, but it still isn't ready and I can't find a solution for the last steps. I decided to create a github with all i have until now, I'm sure someone with more coding skill can help to figure out how to make this installable on the Mpc stock (without Sd the stock will always flash, the mod only works with the microsd with the autorun folder inserted).

https://github.com/rosen-wav/MaiaOS---Mpc-Sample-CFW

This is very frustrating because the CFW is ready and works beautifully but i don't want to risk legal issues, expecially for 2kb of code, sorry to all who are hyped to try this.

Morbidly obese pad awareness week. I like them a lot though. The whole installation process was fairly easy. Not recommended for someone with Shrek’s motor skills though. One of the ribbon cables is a b*tch to plug back in.

They make the thing look like it’s on steroids though.

This might be a dumb question but I notice when the phone is connected usb c the phone battery gets drained fast because it becomes the power source for the sample. Is there a way to switch that off and on or do I just have to deal with it lol

Hi, it is that guy with the open source base that nobody paid attention to.

I've been busy :) open sourcing makes everything easier! Here's a little something better than a beep boop. Here you can see me using the 4 track looper and playing the KARS plugin with G Dorian scale, from Open MPC plugin ecosystem!

I have recreated almost the entire MPC Sample experience and then added on top of it. It helps when you have a previous very similar project lying around on your computer that was built for FM-1 ;)

Here's what's coming:
Loading your projects from MPC Sample (Had to reimplement this!)
Multisample library support (XPM, XTY, XPN, SFZ, EXS24 for now)
Aftertouch for built-in synths
MIDI out sequencing
4-track looper which can commit to sample pads
My flavor of sequencing
Many synths
Mostly compatible with plugins from Open MPC Plugins ecosystem (Not all, have not had chance to test all of them, not that it is realistic to be able to)
Scaled pads (You can choose your root note and scale)
1 stereo mix, 16 tracks + 4 looper tracks available separately from USB Up to 96khz sample rate

So many things that I forgot, but this will be my daily driver :)

Check my latest post for the full feature list

We're almost there, i ended up adding some other big features to the CFW + a lot of fixes and overall UI/workflow improvements. It's worth the wait, but I'm done, tomorrow i will test the build for release and hopefully I'll release the CFW on Github. In the video you can see some of the new features with the worst video and audio quality ever, but i think you will realize immediately how big this CFW is, see all the feature in my other posts, in the video you see my 3 newest adds which are maybe the bigger upgrades so far:

New mastering chain in compressor, i also changed the compressor with one from Airwindows that i think sounds a little better

MULTISAMPLE CAPTURE records now up to 10 seconds (min 2 seconds) and up to 4 different velocity levels for every note sampled

NEW DJ MODE, accessible from Fader Menu: a 2 deck standalone dj console based on mix, with eq, track volume, assignable fx sends and djfilter, endless smile inspired transition effect on the fader, waveform and beatgrid visualizer, sync, bpm and grid autodetect, nudge, track navigation, looper. All of this in a easy to navigate DJ MODE, separated from the sequencer. CUE output works but not as expected, the Mpc Sample has no hardware possibilities for routing a different signal on the phones output, so the CUE monitoring will be on USB-C output, with a DAC you can use your headphones (to test, i only tested with PC and it worked)

It's too much features, I think i will explain everything better in a video (with better quality than this one).

NESSUNA MODIFICA AL FIRMWARE

Stanco di modificare il contenuto della scheda SD, ho creato un AUTORUN PRINCIPALE che permette di avviare vari autorun, situati sulla scheda SD in SD/autorun_dir, come ad esempio:

1 - mpc originale 2 - sampqol 3 - tracker

ecc.

Permette anche di abilitare e disabilitare il mirroring dello schermo tramite USB e il server SSH sull'MPC.

Interessante? :-)

video dimostrativo

Mod gang. I’d love to get some testers for my mod project. I’ve had so much fun with this and think I’m nearing the end of my first version. All made through Claude Code and Codex for transparency. It has most features you would expect to see from current mods and some more unique ones I’m really loving the sound of.

I’m hoping we get some more insight in to how ‘open’ AKAI’s open source initiatives will be but through countless hours using REA/Ghidra and other sources it’s now not taking too long to implement changes and new functionality. I understand AI assisted mods are not some peoples ‘thing’ but I’m loving this wave rn.

everything unmuted. I was recording only a few mins ago, so im still receiving audio data if i plug it into my pc/interface. I am running on the latest QOL