Some cars do actually make an electronic sound to warn pedestrians of their presence. Mostly European cars, and the little hairdresser's Jeep thing I forget the name
You’re probably joking, but in case you’re not: Electric cars must make an artificial sound on low speeds in Europe to alert people. The motor is too quiet on its own.
He may not, maybe he's talking about the sound when the car isn't fast enough to alert people on the street, just to let know that something is coming. It shut at a certain speed I think
I think the biggest obstacle would be from your perspective it would just be a steady annoying sound. TIEs only have their characteristic howl when doing a flyby. But if you're aware of that and you one want it for how it sounds as you drive by, I'd think just playing the tone through the speakers would do.
There's an audio illusion that's somewhat analogous to the barber pole illusion --- instead of a pattern which appears to always go up or down, you can have a sound which seems to always go up or down in pitch: https://en.m.wikipedia.org/wiki/Shepard_tone
It's pretty much certain some EVs are easier than others to jailbreak. Probably don't go with a Tesla. My impression is that established manufacturers tend more to build cars that are just cars, so maybe a Nissan Leaf or something.
I can’t speak to specifics but I can give you some ideas.
So the obd port might have some basic info such as acceleration and turns since and/or at least torque/thrust readings that you can poll since insurance companies and others have devices that use them to track your driving (often paired with GPS which you don’t need)
So some arduino project that lets you plug in and poll that data and to establish a trigger for some audio could be fun.
This might be easier since a pi would be better suited to playback of audio and might be easier to get everything connected and to tinker with the Python to respond to certain readings
I saw such a device on Instagram. I think it was a Bluetooth connection from the computer diagnostic port to the phone.
The app takes this data and makes the right noise based on engine revs. The app was full of different engine sounds both real and fictional along with silly noises such as farting.
Bolt one end of some sheet metal to your bumper, leaving the other end to scrape along the ground. Should generate the required NYAAAUUUGGHHH sound wherever you go.
I'm almost certain someone could build one of these that recreates the tie fighter sound. We need one of those YouTube makers with access to a metal 3d printer to design and build one.
Can't 3d print exhaust components. However, I was wondering what various whistle tips inline would sound like. If each has a different size hole, perhaps they would have slightly different frequencies? The combination might be tie fighter'ish driving by.