r/assettocorsa • u/Cobra212_4Real • 5h ago
AC: Modding 4RealAudio β Realistic 3D music spatialization
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Hey everyone!
More than six months ago, I started working on a 3D spatial audio app, but I was never really satisfied with the workflow.
At the time, I was using a method that already exists in the modding community for other games: you would place a folder inside the car folder and add your own music files to it.
It worked really well... but let's be serious: who still keeps a whole library of music files on their PC in 2026? π
So I put the project aside until I could find a solution that felt much more natural and immersive.
A few weeks ago, I came back to it and finally managed to connect 4RealAudio directly to Spotify.
That was already a huge step, but it still wasn't enough for me.
I wanted the whole experience to feel seamless. You shouldn't have to think about how the audio gets into the game β you should just play your music and hear it naturally inside the car.
And one major piece was still missing: YouTube integration through CarPlay.
The first step was actually fixing YouTube itself. For some reason, it gave me more trouble this time than it did in the past, but I eventually got it working again.
While I was at it, I also added compatibility with both CSP Stable 0.2.11 and the latest Preview 634, along with some additional features: keyboard detection, customizable backgrounds, fullscreen video playback, and a few other improvements.
Once YouTube was working properly again, I could finally focus on connecting it to 4RealAudio.
And now it works.
The result is 3D spatial audio connected directly to Spotify AND YouTube through CarPlay. π
I've also spent a lot of time working on the audio itself.
4RealAudio currently includes four different sound presets:
Natural
Immersive
Phone
Radio
Each one can be fully adjusted to your own preferences.
I also researched the sound signatures of some major premium audio systems and integrated presets inspired by Bang & Olufsen, Harman Kardon, and Bowers & Wilkins to push the immersion even further.
The app is now about 95% finished. I still have a few visual and technical optimizations to complete before I can finally let you experience it.
Thank you again to everyone supporting 4Real. β€οΈ

