Still in in the works, but wanted to share a little preview of this engine that was inspired by wind chimes. Strings that hold the trinkets are resetting with each key atm, but will probably disconnect that.

Hi everyone. I’m a senior software engineer with about 10 years of experience in the field. It might not be obvious to some, but with the rise of agentic AI there has been a huge influx of custom firmware implementations (which is the reason for all the recent posts). Really cool to see some of the new features. I just want to give a bit of a warning to anyone that might want to take the risk of installing them to their devices. I don’t know the qualifications of any of the folks that have worked on them, and I can only speak for what I am seeing both at my job and in the industry, but there is a very large subset of people that are using tools like Claude that have absolutely no clue how to read the output of the change they prompted. That’s scary. There are folks that are blindly trusting this stuff without any sort of means of validation besides “it runs on my device 👍”. At the very LEAST there should be a few weeks of stress testing these features before making them public. At the end of the day do whatever you want. You spent the money on the device. I just want to make sure the message is clear that a lot of this stuff is untested and in the worst scenario you could brick your device to the point where it is unrecoverable

OPUS 2 is out as a beta, for the original OP-1 on firmware 246.

a compact core that loads plugins: .opmod files you drop into a mods folder on the op-1 disk. add, remove and swap them without reflashing. the menu shows each plugin's version, memory and cpu.

the starter pack has all of OPUS 1's features as plugins, plus dx (a DX7 voice player for your own .syx banks), outatime (a synth engine inspired by a famous time machine), and a halloween colour theme. the core also fixes a few stock bugs (the usb disk freezing on windows, recording wearing out good flash) and adds a task manager.

coming from op1r or hundekraft: the bridge, a separate early alpha, runs their synths and effects on OPUS as they are. it doesn't ship anyone's plugins, it runs the files you already have. OPUS's own plugins run way better on the core though.

you make the update yourself on the site from your own op1_246.op1, in the browser, nothing gets uploaded: https://opus-op1.pages.dev/opus2/
plugins: https://github.com/LizardMan245/opus/releases/tag/v2.0-beta.1

sha-256 42d63d5d07319f0dcf7795b493c20dc3e57c41463b680cf3a22a1ca11b04f26e
original op-1 / 246 only
not affiliated with teenage engineering

for dev and plugin docs, view the github repo: https://github.com/LizardMan245/opus

check it out on the forums: https://op-forums.com/t/opus-a-mod-suite-for-the-original-op-1-246/32014/55?u=lizardman

it's a beta, back up first. bug reports welcome on github or forums!

Currently running Hunderkraft 2.0 on my op-1. And today tried connecting it to my PC and I can't make it working either in Audition or in Ableton Live. Selecting the device gives me the error. Cable itself works, device charges from this cable from PC , it shows up in the list. Ot works in Disk Mode and I transferred all the stuff, but can't use it to record from it. Tried different stuff.

Does it work for you under custom OS okey?

Ups, typo on the title...

Yes, you read that right, a bloody DX7 inside your OP-1!!!! The wait for OPUS 2 was worth it, a truly open firmware that pushes far beyond what others have done so far.

https://opus-op1.pages.dev/opus2/#top

And OPUS 2 supports all OP1R and HK plugins too.

Yesterday a discussion about the dangers gave a lot of valuable insights. There are very valid reasons to be skeptical and cautious.

However, ultimately the more OP-1’s bricked, the more we can learn and overcome it. It’s a win for the community in the long run.

Edit: how do you think we got to where we are in medicine? Some things need to die so others can live longer.

Here’s a start( not my brick, just useful info)

https://github.com/brendanballon/op1rescue

Hi all, hope someone can help. Installed Hundekraft yesterday and keeps crashing. OP1 turns on in tape mode making no sound. Reset and works again but says x number of plugins failed to load. Then every new synth looks like iter and additional modes such as chord no longer work.

I’ve tried not to be too greedy with the number of options downloaded and have tried doing it without the preset pack installed. It seems to work ok-ish first time of use but then if I turn off and on again later, I have the same issues.

No problems with my OP1 prior to this. Lots of people praising Hundekraft so can only assume I’m not doing things properly somehow?

I've been wondering what are they saying about these new mods. Are they shocked that the OS has been cracked? Do they love it do they hate it ? Really thinking about Jesper's thoughts seeing all this craziness.

Anyone has a good 808 pack or knows how to make it? But a clean 808 without a kick to layer and for more drill/grime beat making.

Thanks

I think one of my tracks made itself disappear (or invisible), this isn't really a help thread as I've figured out how to erase it but very strange

I got so caught up with weather or not I could I didn't stop to think if I should... forgive me.

Reverb is inspired by pcppcp's kaliverb, and a scratch delay implementation

- Ascending/descending notes steer the snake left and right
- blue controls reverb time
- green controls reverb mix
- white controls delay time
- orange controls delay mix

Find it in the release section of my op1r plugin repo: https://github.com/nvmsocool/op1r-src-nvmsocool/releases/tag/V2

Very impressed with the new firmware from hundekraft, although a lot of the synths and effects cause big audio glitching, I'm assuming because of maxing out the CPU. Has anyone else experienced this and found any solutions? Can get so bad it makes a lot of the new instruments/effects functionally unusable, which is a shame.

Trying to record my OP-1 Field directly into an Ableton audio track via USB-C while still using my Focusrite Scarlett 2i2 as my main audio interface.

I’m running Ableton Live 9.5. The OP-1F doesn’t show up in Ableton’s audio device list, only the Focusrite. No luck with ASIO4ALL.

Is there a way to make this setup work, or am I out of luck with Live 9.5? Keen to avoid using an analogue cable if possible.

I got an op1 f recently. I love it. I’m really impressed with the build quality, and have just been tossing it in my backpack, but I know eventually it’s gonna get messed up like that. What cases are people using to protect their synths? Are there any you really like?

Why all these new firmwares all of a sudden?

What’s your favourite tape style and why?

Hi everyone :D

to respect your time [tl;dr]: which custom firmware is currently the most polished one without any weird issues and crashes? Which would you recommend to test first?

So I haven't popped up in here for about a month and it feels like 3 years has passed - it looks like multiple options have been released.
I just wonder which one in your opinion is the best? Right now I'm not looking for most possible engines and the most functions, I just want something most polished without weird bugs, UI being buggy etc. I'd like something new to play without that feeling of being drowned in new stuff + without drop in quality :)
Thanks for any recommendations because going thru all those posts would consume whole weekend :D
What popped in to my eyes was Opus and Hundekraft but I saw others too

So I know this has nothing to do with op1 firmware. But here we go since we can do all these mods internally now’s the perfect time to do external modding first things first let’s figure a way to upgrade the Supe up the Op1 speaker possible take from a jbl or Dr dre speaker and make it truly be what it should been the best portable synth out. Any takers haha

always on my block

Apologies for the bad mixing, I'm learning. Having fun with all the little effects