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Engine Sound Simulator

xnx
24 replies
1d1h

Tangentially: Does anyone know where to find a collection of the low speed sounds emitted by electric vehicles (in the US at least)? I'd be interest to hear the different approach different manufacturers have taken.

ricktdotorg
11 replies
1d

i too would be very interested in this! i am for now a petrol head but continue to be fascinated and also mildly irked by the varying EV sounds.

some sound like galactic spaceships, some like weapons, some like "blurred mechanical noise", and some are almost indescribable in words. some can be semi-nightmarish.

i'd love to play with a soundboard that had all the different EV manuf sounds on it.

ttul
1 replies
21h28m

When I first got a RAV-4 hybrid, I had no idea that this sound was being pumped out of a speaker. I thought it was an artifact of the electric motor. As it happens, companies spend a lot of time designing their unique electronic sound as a signature of the vehicle. My dog has learned to recognize the sound and he barks when the car is as much as 1km away.

xnx
0 replies
20h51m

Video coincidentally posted today that details some of the design requirements of these sounds: "What should an electric car sound like?" ( https://www.youtube.com/watch?v=ZnAGXvVNMB8)

scoot
0 replies
3h6m

Let me make sure I've got this right... According to the video, if the driver of a Toyota EV reverses through a "cross walk", and hits a pedestrian, it's the pedestrian's fault for not getting out of the way?

And, in order to prove that it must be the pedestrian's fault for not noticing the vehicle reversing through said cross walk, the vehicle omits an obnoxious noise at high volume?

repler
0 replies
18h51m

I think you’re the only one.

I wouldn’t mind as much if the volume wasn’t 5 times louder in reverse than drive.

WheatMillington
0 replies
16h3m

That sounds horrible.

dylan604
1 replies
1d

Shortly after moving into my current place, I would randomly hear this hum that for the life of me I could not figure out what it was. I had even looked at maps to look for some sort of place nearby that might make sense. It wasn't a constant hum, and there was seemingly no schedule for it. A week ago, I just happened to be in my drive way instead of the fenced backyard when I heard the noise. It was my neighbor's EV <facepalm>

rootusrootus
0 replies
23h25m

There was a short moment when I thought the future looked like no fumes and no noise (well, at least no engine noise; tires are quite loud at speed). And then the government decided that EVs should not be quieter than ICEVs, in fact they should be louder. And some of the hybrids on the roads (looking at you, Toyota) are the loudest of them all.

Different strategies for different cars, though.

My neighbor's Highlander hybrid is audible a couple blocks away as it comes into the neighborhood.

Our old Bolt EV was not quite as loud, but still distinctive and never a surprise to anyone as it came down the street.

My Model 3, however, makes a white noise sound going forward that you don't really notice aside from very low (single digit) speeds in a very quiet environment. But in reverse, it howls pretty loudly, and is probably louder than any of the hybrids.

Tao3300
1 replies
4h45m

semi-nightmarish

There's one I hear regularly that sounds like a choir of demons.

spdustin
0 replies
13m

Is it the Honda hybrid sound? I owned two hybrid CR-Vs (loved those cars, but got into an accident one year ago today that totaled a three month-old CR-V hybrid and car prices went up so fast we had to downgrade). We always called it "Hell Choir". It makes for an amusing contrast to the horn, which sounds like a clown car.

https://youtu.be/K_7Hd3M2qrc

smitelli
0 replies
18h29m

My main objection to the newer EV sounds is that they are tonal enough to be recognized as a musical chord, but not a pleasant one. It’s either vaguely minor like a horror movie score, or a downright dissonant mash of pure sines.

seoulmetro
5 replies
17h39m

God, the Hyundai sounds are terrible in Korea. They sound like a UFO and are very loud. They tried to go too hard with the future vibe and it drives me nuts living in the small streets of a very busy Seoul.

Oh my god it actually sounds like a more high pitched version of the Jetsons https://www.youtube.com/watch?v=4NgSZ8sjDgU

Edit: Found it, look how loud this shit is! https://www.youtube.com/watch?v=IgvUu2YZ5ps

xnx
1 replies
17h8m

Having a loud/annoying low-speed sound would be a dealbreaker for any EV purchase.

seoulmetro
0 replies
16h3m

That's the thing. When you're driving you most likely can't even hear it unless it's dead quiet (and when it's dead quiet these things don't adjust, they are LOUD).

s1gsegv
1 replies
16h55m

I did notice this when I had a city apartment with a window facing the street: regulators have not taken noise pollution into consideration. They made it very loud so as to be sure to alert all pedestrians, which is good, but it is also far more noticeable than a quiet ICE in several situations. If I’m in a building, I really do not want to hear a vehicle! Noise pollution is a real problem and the current regulations unfortunately do step backwards in my opinion.

seoulmetro
0 replies
16h2m

It will happen eventually... hopefully. I'm usually ahead on my complaints to the average Joe. So since I started complaining a couple years ago I give it til next year to start being enforced.

tedd4u
0 replies
1h59m

Holy crap, is that modified or do they all sound that loud? And not just in reverse? Not the future we were promised.

buildsjets
3 replies
1d

I’m not going electric unless I can choose the Hampsterdance as my motor sound.

rootusrootus
0 replies
23h19m

I really hope we can get to a point where there are multiple approved sounds to choose from. If the car has to make noise, might as well be able to select from some options.

Probably won't see Hampster Dance approved, however...

addled
0 replies
21h3m

On the one hand, yes!

But more realistically, think of the headache of trying to keep your engine's Hampsterdance in sync with the Hampsterdance blaring from your car's stereo, (as it naturally would be).

Not to mention all the other excellent tracks on https://en.m.wikipedia.org/wiki/Hampsterdance:_The_Album

phs318u
21 replies
17h1m

Reading a lot of the comments it seems that most people here are keen to have otherwise quiet cars fitted with fake sounds. While I appreciate there's a safety aspect to making some sort of sound for pedestrians, I am actually looking forward to a future that makes cities and heavy traffic areas both quieter and cleaner. If you live in such areas, this would be a great quality of life improvement and dare I say, may improve property values in such places.

I'd hate to think that 20 years from now I'll still be subject to morons deciding to delight the neighbourhood at 2am with their overblown engine sounds.

IAmGraydon
6 replies
14h29m

Unless I'm missing something, these sounds only occur inside the car. Can you explain how that affects you?

techwiz137
1 replies
11h40m

In ICE cars, some people remove the mufflers and modify the exhaust for louder and more deeper sounds.

anentropic
0 replies
7h28m

anti-social vehicles

lobochrome
1 replies
10h2m

Oh but they don’t! Lots of German “performance” cars now have speakers under the car to make obnoxiously loud sounds. They can’t produce them naturally because the muffler regulations prohibit unfiltered exhausts - hence speakers.

AMG, Audi RS, M Power - they all do it.

florieger
0 replies
8h15m

Do you have an AMG example? Afaik they only play engine sounds in the interior.

constantcrying
0 replies
13h18m

EVs at low speeds need to produce external sounds to warn pedestrians.

USiBqidmOOkAqRb
0 replies
4h22m

Yes, you are missing something. Query for your favorite search engine is "active sound exhaust system". This is how it affects me.

HPsquared
3 replies
10h8m

I wonder if they could go the other way and use loudspeakers for external active noise cancellation.

pancsta
1 replies
9h30m

wtf is external noice cancellation

otteromkram
2 replies
16h32m

Yes! I've already written NHTSA and US DOT about getting these synthetic noises banned. The more people who do the same, the more likely it'll get noticed.

Now, we just have to figure out how to include motorcycles...

sandworm101
0 replies
4h50m

> getting these synthetic noises banned.

Not possible. Db limits are one thing, but a content-based rule would be akin to banning certain types of music.

fragmede
0 replies
12h37m

you know they're the ones that required them, right?

basil-rash
2 replies
3h23m

By far the worst offenders when it comes to neighborhood car sound are EV’s. They have decided across the board to blast the most bone chilling drone imaginable every time they are backing up a driveway or driving at low speed – you know, the kind of thing that happens in neighborhoods all the time.

The tone itself is the worst part. It’s as if it was specifically engineered by top audio scientists to be as repulsive as possible (that’s probably exactly what happened), then they turned the volume dial up to 11 so it’s still grating even in your house several doors down. I believe Tesla led the charge here, but now they’re all equally guilty of disturbing the peace and wanton noise pollution.

Just play a nice v8 sound at a reasonable volume for gosh sake!

qrohlf
0 replies
3h1m

There’s some regulation here to contend with that mandates these EV sounds have to include a 1khz-4khz tone which is probably what you’re noticing since it’s on the higher end of the usual urban audioscape. The Verge did an interesting piece on this recently – https://www.theverge.com/24182348/ev-sounds-low-speed-survey...

hollerith
0 replies
3h19m

I like the hissing sound that some delivery trucks started making about a decade ago.

Experiments show that people can determine the direction of a hiss (a sound composed of many frequencies) better than a beep or a pure tone.

fnordpiglet
1 replies
16h58m

Yeah Skeuomorphic EVs is a bad idea.

DonHopkins
0 replies
2h54m

I kinda like the Skeuomorphic Brooke 25/30-HP Swan Car, which has Eerie Glowing Skeuomorphic Swan Eyes, can Rudely Spray Skeuomorphic Steam from its Skeuomorphic Swan Beak to clear a passage in the streets, can Obnoxiously Skeuomorphically Honk with an exhaust-driven, eight-tone Gabriel horn that can be operated by means of a keyboard at the back of the car, and can Disgustingly Dump Skeuomorphic Bird Shit onto the road through a valve at the back of the car.

It even has a baby daughter, Cygnet The Baby Swan Car!

I bet Elon Musk and every CyberTruck owner would love to drive a CyberSwan.

https://www.louwmanmuseum.nl/en/car/brooke-25-30-hp-swan-car...

Brooke 25/30-HP Swan Car

This Brooke Swan Car is truly extraordinary. It was the creation of the eccentric and wealthy Scotsman Robert Nicholl ‘Scotty’ Matthewson, who lived in early 20th century Calcutta, the capital of what was then British India

Matthewson wanted to shock the local elite with his car, and he certainly succeeded in doing so.

The bodywork represents a swan gliding through water. The rear is decorated with a lotus flower design finished in gold leaf, an ancient symbol for divine wisdom. Apart from the normal lights, there are electric bulbs in the swan’s eyes that glow eerily in the dark. The car has an exhaust-driven, eight-tone Gabriel horn that can be operated by means of a keyboard at the back of the car. A ship’s telegraph was used to issue commands to the driver. Brushes were fitted to sweep off the elephant dung collected by the tyres. The swan’s beak is linked to the engine’s cooling system and opens wide to allow the driver to spray steam to clear a passage in the streets. Whitewash could be dumped onto the road through a valve at the back of the car to make the swan appear even more lifelike.

The car caused panic and chaos in the streets on its first outing and the police had to intervene. Matthewson sold the car to the Maharaja of Nabha, whose family owned it for over seventy years.

The car was discovered years later in its original state, albeit in poor condition. The sumptuous Indian silk upholstery had been eaten away by rats.

In 1991 it came into the ownership of the Louwman Museum and was fully restored. New upholstery was commissioned from an Indian weaving mill following the discovery of remnants of the original material under the seats. All the gadgets were made to working order again. In 1993 the Swan won the Montagu Prize at the prestigious Pebble Beach Concours d’Élégance in California.

https://www.louwmanmuseum.nl/en/masterpieces-of-mobility/swa...

Designed to shock

The Brooke ‘Swan Car’ is truly extraordinary. It was the creation of the eccentric and wealthy Scotsman Robert Nicholl ‘Scotty’ Matthewson, who lived in early 20th century Calcutta, the capital of what was then British India. Matthewson wanted to shock the local elite with his car, and he certainly succeeded in doing so.

Quite a sight!

The car’s first outing in the streets of Calcutta lead to newspaper headlines: “Women screaming” and “animals in the streets scattered in all directions”. At the time traffic in Calcutta was already very busy and chaotic. The authorities’ response was to be expected: they banned the car from public roads.

A work of art on wheels

The body represented a swan, probably inspired by Swan Park in Calcutta where Matthewson lived. The accessories are just as quirky as the body of this work of art on wheels. In particular the system that allowed hot water to be sprayed from the swan’s beak and the brushes used to keep the tyres clean.

The Maharaja of Nabha

Matthewson decided to sell the car. A buyer was found in the person of the Maharaja of Nabha. After a conflict with the neighbouring principality, the Maharaja was forced to abdicate. His son, at the time 9 years old, succeeded him. The Baby Swan was built specially for him and beautifully complements the Swan Car.

Meet the Swan Car

The cars didn’t see much use and in the 1980s part of the Maharaja of Nabha’s car collection was sold, including the famous Swan Cars. Both cars were acquired by the Louwman Museum and subjected to a thorough restoration.

https://www.louwmanmuseum.nl/en/car/cygnet-the-baby-swan-car...

Cygnet The Baby Swan Car

To accompany the large ‘Swan Car’ The Maharaja of Nabha had this smaller version made for use on his estate in the 1920s.

The body was hand-beaten from steel sheet and fitted with an electric motor. It was called the ‘Baby Swan’ or ‘Cygnet’. Note the cygnets at the front. This is probably the oldest Indian-made automobile.

Both cars are now reunited in the museum, like ‘mother and daughter’.

deadbunny
1 replies
7h36m

Having lived in apartments on many busy roads in my life the main source of noise from cars is tyre noise, not engine noise.

bmcahren
0 replies
7h3m

Try living downtown in South Florida.

elromulous
6 replies
1d1h

If you liked this, y'all owe it to yourselves to checkout AngeTheGreat's channel. It's truly amazing work.

https://youtube.com/@angethegreat

genewitch
0 replies
18h29m

if you get to the 0.1.11a release and are annoyed that you have to manually edit some file to change engines, you can use 0.1.14a of the community edition of the software https://github.com/Engine-Simulator/engine-sim-community-edi...

it is almost the same except has some severe qol improvements.

dclowd9901
1 replies
16h32m

That rigid body engine sim is, without a doubt, one of the coolest software projects I’ve seen in my entire life. If only we could get sim racers to adopt this tech.

willis936
0 replies
8h39m

Ange's top patron is BeamNG, arguably the most physically accurate sim racer out there right now (in some areas, it still needs improvement). I predict within five years BeamNG + engine sim will leapfrog what anyone else has done in this area and recreated what we all thought video games were doing when we were little kids.

kivle
0 replies
22h36m

For a less scientific approach LAxemann has some interesting videos as well. He uses software synthesizers to create the sounds. His introductory video is quite interesting:

https://www.youtube.com/watch?v=afvKUTIL4D8

He has other examples and updates on his channel as well.

fourteenfour
0 replies
1d1h

Yeah, I always look forward to their new developments. This is similar to Ange's effort with SiliconX to add realistic engine sounds to an electric motorcycle though this appears to be for an electric race car.

xattt
4 replies
1d1h

This would be great to load up onto an RPi and put into a kids toy. Maybe use it to pimp up one of those toddler steering wheel sets.

hyperific
2 replies
1d

^^ This.

I thought the same thing. I want to rig up a optical encoder to a bicycle tire and use the output to drive the engine simulator - make my bicycle sound like a sports car.

imiric
1 replies
22h13m

Way overengineered... Back in my day we were happy with sticking a plastic bottle between the tire and frame :)

Looks like kids still do it today: https://www.youtube.com/watch?v=OWRv17qvM0s

hyperific
0 replies
20h34m

Granted, but can a plastic bottle be modified to make my bike sound like a Star Wars speeder bike?

otteromkram
0 replies
16h25m

Why turn your kid into a degenerate before they've even reached adolescence?

mosfets
4 replies
1d

Anyone know good tutorials for simulating drone/airplane propeller sound?

dylan604
3 replies
1d

That would be an awesome PsyOps sound to get people looking in the wrong direction

hyperific
1 replies
1d

This is a scary but incredible idea.

dylan604
0 replies
23h12m

It'd probably much cheaper just to fly a set of drones in the area rather than deploy a full PsyOps team and gear. They do it with actual jets while the actual attackers are flying in fast and low from the opposite direction now that you've sortied your defensive aircraft towards the bait.

mywittyname
3 replies
1d

Pretty cool!

Downshifting under braking doesn't feel accurate. Most fast cars brake like 2-4x their acceleration rate, but in this sim, the braking feels more like 100x.

The sound of an engine under decel is just as awesome as acceleration.

jachee
2 replies
1d

Deceleration is where you get fuel overrun and backfires, too!

    VrOOOOooomm-pa-pop-pow-ooooom.

LoganDark
1 replies
21h14m

Slightly off-topic, but I hate when people modify their engine / exhaust system to do this on purpose, just to be obnoxious. You're not cool, dude. You're just a jerk.

otteromkram
0 replies
16h23m

No, this is 100% on point. I support your comment and it isn't off topic at all.

They are certainly cunts and it would be amazing if police actually enforced noise ordinances for passenger vehicles at some point. Fingers crossed! As always!!

richrichardsson
2 replies
10h16m

I love that when you get to max RPM in 6th gear and then just downshift to 1st you hit comically high RPMs!

al2o3cr
0 replies
3h36m

The best/worst of those videos are the ones where you can actually HEAR a bunch of metal bits hit the ground right after the shift :)

numbsafari
2 replies
22h45m

I’ve got one of these. It’s called a toddler.

genter
1 replies
22h44m

I've also got one. It's called my jackass neighbor.

numbsafari
0 replies
12h55m

Frank? That you?

jonwinstanley
2 replies
23h31m

This is great!

For a game I was making years ago, I tried to make a “crowd noise” generator. As in for a football/soccer match.

But it was not my skillset and I failed miserably.

Does anyone know of something that might get me started?

sangnoir
0 replies
21h0m

This is sometimes known as "walla". This tutorial is specific to Sound Particle (audio app), but the basics can be implemented easily from scratch. https://youtu.be/nigFrC2mORk?si=Cktdb3aTrIs5vUbB

rzzzt
0 replies
21h27m

A non-procedural approach might be easier: collect loops of baseline murmurs / elevated cheering / peak ecstatic crowd and vary the volume of each based on what is happening on screen. If you have variants of each "energy level" you can also smoothly fade between them, queuing the next one randomly as the current version runs out. This way the wrap-around point should not be that noticeable.

Something similar is done for music that varies according to gameplay intensity: https://en.wikipedia.org/wiki/Adaptive_music

Waterluvian
2 replies
1d1h

This is amazing. I think a small amount of window dressing would make this a classic page people bookmark and return to frequently just for fun. Especially if that make it mobile friendly.

Like even just two pedals and two flappy shifters on screen with all those other tools hidden behind a collapse or whatnot.

gffrd
1 replies
1d1h

If you downshift with RPM too high, UI breaks off and falls to floor of screen

Whole Page turns red when you hit RPM limit

Shift score. Can you pick the perfect shift point based on sound alone?

fourteenfour
0 replies
1d

The sequel to Dragster for Atari 2600!

Clueed
0 replies
1d1h

I love his videos but all the sound demos are a a bit too much sometimes :D

inasio
1 replies
19h0m

Free startup idea: Restomod an old Porsche/Mustang into electric and keep the rumble and feel of a big V8.

Needs: Engine sounds, haptic seats, and a few small modifications (e.g. clutch pedal, gear stick)

TheLoafOfBread
0 replies
36m

Cars are already having in-built engine sound simulators, especially ones with manual gear to force people shift when necessary.

dsjoerg
1 replies
1d2h

Add buttons for people on mobile?

snthd
0 replies
1d1h

Even better, use the gyroscope.

Otek
1 replies
1d2h

hmm, I either don't know how to use it or it doesn't work in Safari

peterfirefly
0 replies
1d1h

Reload. Click in the window. Then rev up the engine. It breaks when you switch sounds -- so reload, select sound, click somewhere, etc.

wmsmith
0 replies
16h38m

Reminds me of the sound racer v8[0]. This gismo was a lot more fun that people gave it credit for -- it read the rpm from the 12v signal in the power and modulated a v8 over fm. Had a blast in my little four cylinder sounding like a beefy v8!

[0] https://www.soundracer.se/?p=98&p2=505

rzzzt
0 replies
21h12m

Around 5000 RPM I get transported to the back seat of a two-stroke Trabant struggling to reach 70 km/h on a mild incline.

rootusrootus
0 replies
23h17m

More fun than I expected. Now I want more engine sounds. I wonder how hard it would be to contribute new engine models. Like, what is the recording process and processing required to build the source sounds.

osigurdson
0 replies
17h17m

I'd like to hear a gas turbine sound simulator. It would be cool to hear a T700 (Blackhawk engine) enter the critical RPM ranges for example.

osigurdson
0 replies
17h21m

I managed to get negative RPM - cool!

nsingh2
0 replies
1d1h

Very cool, get to top RPM in gear 6 and drop down to gear 1 for an ear-rending shriek.

jonwilks
0 replies
1d

The smile on my face...

jellydonut9
0 replies
20h41m

Partially related: I love the sounds of electric vehicles. They're so futuristic and weird! If you close your eyes, you can imagine a spaceship instead of a car.

jcims
0 replies
1d1h

Fun! Would be funner if it handled the money shift.

jagged-chisel
0 replies
21h41m

OT, sound simulator related:

I recall a thunder simulator (generator?) from years ago. You could draw/modify a “line” representing the ground surface, give it a few seconds, and it would output thunder. Early-ish internet days, Java applet. Might have been on a university web site.

I tried searching fairly recently and came up empty handed. Is it possible that anyone here on HN might remember this and have a reference? I would settle for a paper.

giobox
0 replies
20h58m

You can sort of "heel and toe" with the space and b keys, while shifting down. Use the same finger for both keys for added realism.

genewitch
0 replies
1d

wow, most of the time the engine sounds of cars designed to go 0-100 quickly sounds super generic, but this i can actually get to sound like two different cars i've owned. I could almost get it to sound like a Lancer Evo X but there's no blowoff or turbo sound... maybe in the next version!

culebron21
0 replies
23h7m

I touch Theta param in the left part of it, and the sound disappears, all the numbers go mad into infinity and then become NaN. Also there's no sound if none is selected in controls, but changing anything in controls makes the same effect -- all params spiral into infinity. Not fun.

cathalc
0 replies
1d2h

This is truly music to my ears!

carlos-menezes
0 replies
1d1h

This is way too fun.

alopes
0 replies
1d2h

This is really good!

adolph
0 replies
18h37m

It would be interesting to see an engine sound sim with various malfunctions, sort of like the call-in part of Click and Clack.

Just this afternoon my daughter asked why a car was making a particular sh-hiss between some cylinder beats and I speculated it was a small head gasket leak between cylinders allowing some of the ignited gases to expand into exhaust. Maybe it was something else though, maybe crispy cooked feline remains against a fan belt.

a2128
0 replies
1d

Looks like this uses soundbanks instead of actually simulating an engine like AngeTheGreat's simulator. The author of this one has published their source code here https://github.com/markeasting/engine-audio

HeatrayEnjoyer
0 replies
1d1h

Tapping on the controls is broken. Typed text in gear number field is erased immediately.

The app sounds fun. Excited to try it again later.

HanClinto
0 replies
1d1h

Absolutely delightful!

This is way more fun than it has any right to be.

ElCapitanMarkla
0 replies
18h26m

My 4 year old is loving this

DonHopkins
0 replies
2h32m

I liked to lie to people that my big old modular Thinkpad (the one with two bays for batteries, disk drives, cdroms, etc) had a tiny gas generator module in it to charge up the batteries, then I'd mime pulling the start cord, while surreptitiously playing a loud audio file of a chainsaw starting up and running, to prove it.