I saw this video a couple of days ago, it blows my mind. A little bit of what LFS did, but “next-level”. For those moments when sound samples are not available, it might be a good source for the next best thing. Or at the least, a fun experiment. The code was initially open-source, then it wasn’t, now it is again https://github.com/ange-yaghi/engine-sim If you do use it for more than experimenting, consider supporting the author. (links in YT description).
I tried it, but my CPU (FX-6300) is too slow. You need at least 50 FPS in the program to get stable audio output. But he made it Open Source so someday i will maybe have a closer look on this project because i could imagine this in combination mixed with real engine sounds may sound more organic and less generated then my soundmods based on real sounds sampled with a software called Rev. I need to do some futher investigations of his project in the source code and understand the Sound Synthesing Process better to create an own software, that generates samples for different load und rpm states instead of an in my eyes very unstable an CPU consuming live sound synthesis. Here is a link of the compiled releases: https://github.com/ange-yaghi/engine-sim/releases Btw, check out Kirbyguy, he had a lot of fun creating own engines with the tool
I think it needs way more than that, some 80 000 fps, iirc. I played with it a little with no problems, but I have a good CPU. In any case, the simulation seems rather complex, I'd guess simplifying it might negatively affect the result. For you to discover.
This is very cool, and way more advanced than what I was imagining it could be done. If I understand correctly, this is real-time, without any generated samples. Could you give more details about how you did this? Also, what is the impact on performance? Very curious to find out more
It simulates engine flow + sound in real time and overrides car physics. Simulator is mostly single threaded and prefers high HZ CPU's. Demo runs on Ryzen 5800X without issues, for bigger engines (V8-V12) some optimizations required. Prototype is implemented as game plugin with some reverse engineering magic. DLL is loaded by game, then it reads car inputs, simulates the engine and outputs torque on player car. Sound quality/immersivity is not so epic but hopefully will be improved in future.
Oh, so it's not only the sound, but also (some part of) the physics. Was this necessary or it's just because you could?
In case game car engine and simulated engine are same (in terms of power curve and inertia) physics feedback is not needed. But when they differ without feedback it will be very strange
