u/Designer_Pass5246

I’ve been experimenting with procedural engine audio and turned it into this browser V8 simulator:

https://vroom-web-nine.vercel.app

The core engine sound is generated in real time rather than built from recorded engine loops. I based the audio side on Antonio-R1’s MIT-licensed engine-sound-generator, then changed the firing schedule and separated the exhaust pulses by cylinder bank. Keeping the two banks separate made the biggest difference to the uneven crossplane-style sound.
There’s also a small drivetrain simulation. Hold the button and the virtual car accelerates and shifts up. Release it and it engine-brakes, downshifts and blips the throttle.

Everything is simulated inside the page. It doesn’t read GPS, OBD data, the accelerator or anything else from the real car.

I drive an EV, so I tried routing the phone audio through the car speakers over CarPlay. That sounded much better than my laptop and has become the main way I test it.

If you work with Web Audio or procedural sound, I’m interested in what immediately sounds fake to you.

I have a Toyota bZ4X and wanted to rev back at the cars with big engines beside me at traffic lights. So I made this:

https://vroom-web-nine.vercel.app

It’s just a webpage. Open it on your phone and route the audio to the car speakers over CarPlay.

Hold the red button and it accelerates through the gears. Let go and it engine-brakes and shifts back down. I also added neutral revving and some pops and bangs.

It doesn’t read the car’s speed or anything from the car. The speed, gears and engine are simulated on the page. The core engine sound is generated in real time rather than built from recorded engine loops.

It sounds much better through the bZ4X speakers than it does on my laptop, which is how I ended up actually using it in the car.

There’s no signup. If anyone tries it in another car, tell me if it actually sounds any good.