
Simulating an Entire Car Engine (yes, it makes noise)
About this video
AngeTheGreat describes building a physically realistic internal combustion engine simulator in C++, drawing on fluid dynamics, physics and chemistry. It generates procedural audio for engines such as a V8.
Why it appears in the archive
HN points to it as a standout example of physics-based sound synthesis and engine simulation.
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From the Hacker News discussion
> Interestingly, while the engine has the most moving parts in real life, in code, it's the simplest piece of the entire car simulation. Because at its core, the engine is just a torque calculator. It's concerned with producing a single output: rotational torque, from a set of inputs. It is essentially a blackbox. This just reminded me of AngeTheGreat's incredible video series showing his engine simulator- absolutely worth checking out, considering it's optimized enough to run in real-time! The fact that he's simulating it well enough to generate realistic sound is absolutely mind-blowing. [VIDEO]
Read original comment ↗Or combine it with that engine noise generator that uses a full physical simulation: [VIDEO] That would be pretty sweet! I’m guessing with the ECU sensors you could do away with much of the sim parts.
Read original comment ↗You might find this software interesting: [VIDEO] I don't know if any of the state of the art flight/driving simulators are doing this kind of engine noise synthesis already, but they should be.
Read original comment ↗Love physics based audio! Using the GPU is a great idea. Another physical audio simulation I like is the engine sound simulator made by AngeTheGreat: [VIDEO]
Read original comment ↗Would love to play around with this and hear the differences in sound. Something like what this guy did with the engine simulator [VIDEO]
Read original comment ↗