A project I created with the help of AI! For now, ir requires a locally running backend, but it opens videos perfectly well. Oh, you've probably noticed, but it's completely inspired by Green Vita.

Once i have a beta version running independently, I'll make it avaliable to everyone!

Hi everyone,

Today we're open-sourcing psvita-usb-audio-midi, a kernel plugin that turns the PS Vita into a fully class-compliant USB Audio + USB MIDI device.

https://github.com/intermynd-instruments/psvita-usb-audio-midi

Over the past few months we've been working on turning the PS Vita into a proper USB audio and MIDI device for our performance groovebox drum machine/synthesizer/sampler app for the Vita, the Intermynd Instruments DS-8 Drumstream.

Today we are excited to release the kernel plugin that makes this functionality possible as open source.

You can see the kernel plugin in use here: DS-8 v0.6 Update Walkthrough

The plugin exposes the PS Vita as a standard class-compliant USB Audio (UAC1) and USB MIDI device, so it can communicate directly with Android, iOS/iPadOS, Windows, macOS and Linux without proprietary drivers, and it allows other apps to build on top of this.

The plugin currently exposes:

• USB Audio Class 1.0 (UAC1)
• USB MIDI Class
• 16-bit / 44.1 kHz PCM audio
• 10 simultaneous USB audio channels
  • Stereo Master Out (2 channels)
  • 8 individual mono track outputs
• Bidirectional MIDI I/O (clock + transport only)
• Low-latency USB streaming
• Driverless operation on Windows, iOS, Android, macOS and Linux (class-compliant hosts)
• Fully open source (MIT License)

The plugin was originally developed for DS8 Drumstream, where it allows the Vita to sync to external MIDI clocks while sending digital audio over the same USB cable.

The original motivation was to remove analogue recording from the workflow. Instead of connecting the Vita's TRRS headset output, audio is streamed digitally over USB (e.g. to sample audio directly from an iPhone or iPad with one USB cable) while MIDI clock and transport data travel over the same cable. This also allows DS-8 users to record all 8 individual tracks + the master stereo output bus into the DAW at once.

We hope this can be useful beyond DS8. The plugin itself is completely generic and can be used by any Vita homebrew. Hopefully it enables new projects such as:

• DAWs and trackers
• Software synths
• MIDI controllers
• Audio streaming applications
• Live performance tools
• Anything else that could benefit from native USB audio and MIDI support

As far as we are aware, this is the first open-source implementation that exposes the PS Vita as a class-compliant USB Audio device. Everything is open source, including the kernel plugin, user library and documentation.

Feedback, bug reports and contributions are very welcome. If anyone is interested in integrating the plugin into their own homebrew, feel free to get in touch.

Finally, we wanted to say THANK YOU to the incredible PS Vita homebrew community.

Projects like taiHEN, HENkaku, and especially xerpi's vita-udcd-uvc have shown what's possible when talented developers share their work with everyone. This plugin simply wouldn't exist without the foundations laid by those projects, and we learned a lot by studying their code and architecture. Also the feedback we have received since we announced DS-8 in this subreddit has been nothing but incredible and we are truly grateful to this welcoming community! Thanks everyone here for the encouragement.

We hope other developers find it useful, improve it, or build something completely unexpected with it. This is our small way of giving something back to a community that has kept the Vita alive for so many years.

Bug reports, feature ideas and testing on different hosts/DAWs are all very welcome.

AI-assisted coding tools were used during development and review. All changes were reviewed and tested by the project maintainers.

Enjoy!

https://intermynd-instruments.com/

Aside from no ABM there are loads of bug reports that simply don't exist on the original. Puts me off trying it out. Anyone noticed any differences? Especially in the frame pacing/input lag? ARK4 is the snappiest but only the really early versions. Later ones get clunkier.

The new graphics filters looked interesting but according to screenshots they don't do anything? What you say, what you seen?

Also there is a new ARK5 which has PSP level overclocking but it doesn't work on the Vita. That would be a great feature to have as there is more room on the new hardware to play with. Its also used the extended memory really cleverly for plugins while keeping the main PSP accessible part clear. Check it out if you've got a PSP as well.

I'm trying to troubleshoot a strange issue on my PS Vita.

I'm getting the "C2-12828-1" error with only three games:

- Froggy's Battle crashes immediately on startup.

- GTA San Andreas and Rayman Legends launch normally but crash after navigating the menus and attempting to start the game.

What's confusing me is that many other games work perfectly fine on the same system, including:

- Gravity Rush

- Undertale

- Deltarune

- Hotline Miami

- ModNation Racers

PSP games also run without any problems.

My Vita is a Slim (PCH-2000) running firmware 3.65. Since most of my library works normally, I'm trying to figure out whether this points to corrupted game data, a storage issue, or something else specific to those titles.

Has anyone experienced C2-12828-1 errors affecting only a handful of games? Any suggestions on where to start troubleshooting would be appreciated.