Simulating engine sound using 'granular synthesiser'. Just 1 ( or 2 ) audio clips is enough to give it a lot of character. I prefer this over blending different RPM layers and trying to match it.

This is great, I remember playing some time back with MotoSynth on Unreal, what a shame they didnt move that forward.

Was expecting they would add a built-in one with all the audio changes they made. Have they not?

Hadn't seen anything new, motosynth is still in the engine

Interesting, never seen that one before!

Sounds great! Proper engine audio is PAIN, I couldn't get close to such quality. Are you feeding it into some existing audio library (fmod, wwise, etc) or is it fully custom?

Fully custom! I tried it a while ago and got far but sounded very glitchy. This time with AI i got it much closer to how I want. It also now highlighted issues in my drivetrain sim, so its hard to know which is to blame for the remaining issues

this is goals 😭 i tried so many times build a similar system, but never sounded as good as that!! always way too robotic and distorted did you need to make grain samples match the ignition timings or is it random? any tips on this would be awesome

Nope! No ignition events syncing atm but not random either. It tries to match ( very lazily ) 100ms grains based on the outgoing waveform. Crossfades them. Happy to share some more implementation details soon, once i got it a little more polished. Will ping you!

oooh, i didn’t try to match anything based on waveforms and that might’ve been the main issue of it all ngl thx so much!! will be waiting🫡

Good luck! Also the recording itself is important too, very hard to find good ones :(

true! but still way easier than manually creating samples from irl recordings… never got it to sound good, it is a dream just having an accel, decel and idle samples and the car sounding so alive!

Yep. Im considering using to generate the sounds! No idea if it will work

that is what i used to get some clean audio samples! and it's really good but its wayyy too heavy to have it in the game, my laptop cant run it by itself, much less inside a game 😭

i think all it needs is blending to idle sound when the rpm drops alot and there's silence, otherwise this is really cool

Sound design is underrated 🔥

Man, I gotta learn how to do this.

Well done.

Pretty damn good, car audio is a pain in the balls

Sound great wow! Congrats!

What engine?

Custom engine

Lovely car! Exactly the same I am currently working on roof animation 😅

Bro is that a custom engine?

Yep!

I love this immensely! Sounds awesome. Where does the source audio come from?

How does it loop when in for example 5000rpm?

I’ll see if i can record it at specific RPM and show you. Im curious too lol

That's great

Why is it generating rubber squeak sound when you not spinning the rear wheels (i.e. not pressing the acceleration). Or this part not yet implemented?

Yeah tire sounds are super basic atm. Will be working on soon :)

Have you seen this?

Threejs?

Nope, custom c#/vulkan engine

soo good, we need more implementation details