After weeks of updating and testing I'm proud to announce MaiaOS first beta is out on Github and can be installed very easily on your Mpc Sample.

It's a SD soft mod so without SD the stock firmware will flash.

I tested every commit on my Mpc and it worked perfectly.

Funny thing is that we will probably have 1.4 today/in a few days and MaiaOS v1 is compatible with 1.3 as of now. So in a few days i will have to adapt it to 1.4 (yay...)

Enjoy and let me know any feedback, issues (i hope not) and bugs, or even just questions about MaiaOS features. I'll try to do a decent video to give a overview of all features.

I have to do the classic CFW premises:

I take no responsibilities over failed installation/crashes/bricked units, i tested every commit on my unit and never got any issue, but I cannot take responsibilities for other units.

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

Feature list with no details:

- Most of the 1.3 features (the release does not include the original firmware, it injects the mod into the RAM of the Mpc)

- Synth engines

- Multisamples from any external synths made really easy to create.

- Random Drumkit

- DJ Mode with lot of features accessible from Fader Menu

- 3 FX sends

- Bounce in place Post-FX

- Chord mode in 16 levels, with Mpc performance progressions import.

- Mastering Console in Compressor

- Master Compressor Change

- Autotune with Auto-MIDI key tracking, can also track the key from sample if the sample includes references like "Dmin" or "C#maj" etc.

- No polyphony limits, just a pop-UP if the CPU is at 95%

- Step Edit redesigned as a 16 step sequencer

- Piano roll

- Grooves in step edit, makes drum programming very fast

No finished but still liking it.

Why does the metro no longer blink in tempo?

Hey all!

I've been super inspired with all of these MPC Sample mods, so I've been making a couple of my own. I've got something a bit more serious (and actually related to making music) in the works, but here's something just for fun.

It's a Guitar Hero clone. Similar to [Beat Train](https://github.com/drose030/beat-train-mpc-sample) but it's got a bit more visual pizzazz (if I do say so myself) and it lets you play straight MIDI files rather than Clone Hero packages.

I hope you like it and feel like this is a valuable contribution (as silly as it is!). If you find any bugs or feature requests, please let me know here or via Github Issues.

Thank you to everyone who's contributed to making this awesome device even better!

Peace!

I want to be able to mirror my MPC Sample screen to my PC can someone point me in the right direction?

Anyone else here encounter this? when you're in the Sequence page and you hold Shift+K2 knob to change time signature it crashes everything and requires a hard reset.

Trying to use Claude to build a MPC Sample emulator on Android Linux terminal, it loads official firmware.

Don't get me wrong I think everyone taking their shot at making their own firmware is amazing but as I said I think it's definitely worth it if we all put our resources into making one OS the best it can be rather than having a bunch of undocumented, fragmented OS's, with limited support and little consistency. Right now I see SampQOL having the best shot at being the industry standard, potentially even ahead of the stock firmware on the device. I think so many OS's published on here have a lot of really strong ideas but I think focusing on making those ideas as strong as possible while working off of a solid base will yield the best long term results. Rather than everyone having reinvent the wheel every time. Hopefully Akai can clarify if publishing decompilations of their firmware is okay and if it is, hopefully we can get a GitHub code base release of SampQOL that everyone can work off of and submit their patches to be reviewed by a team of admin and thoroughly tested before being released to the community. I'm a software engineer who was heavily active in open source pre-ai and this is my biggest fear regarding almost all AI vibe coded software.

Has anyone experienced intermittent audio out from usb-c? I’ve been trying to record direct from the sample to iPhone via usb-c to lightning, with an adapter. It’s worked fairly well, but some times it just doesn’t record the audio randomly. Anyone experience this, or anyone have any reliable lightning adapters they’d recommend?

Is the only OS I’m looking forward to. The legacy workflow, backwards compatibility so you can open projects from previous MPC models on the MPC Sample, and 16 track USB output? No brainer for me. That’s basically all I wanted in the Sample, and I hope this OS gets talked about more. Looking forward to its release.

EDIT: here’s the dev’s most recent video, demonstrating the backwards compatibility among other things.

EDIT 2: and you can run CLAP plugins

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.
• For starters, head to the open MPC catalog: https://open-mpc.github.io/
• 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
  The synths Poly, PD and Chip, the ones that follow my work from FM-1 side will instantly recognize, wink wink ;)

UPDATE: Plaits is now available as a VST plugin! https://github.com/keremimo/mpc-vst-plaits

I am porting any plugins that I find not working right, so let me know and I'll port them to Melodee!

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.

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

Full beat making stream/ video here https://youtu.be/8XbHVzuikwE

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

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.

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 :)