[HN Gopher] Engine Sound Simulator
___________________________________________________________________
Engine Sound Simulator
Author : hyperific
Score : 287 points
Date : 2024-07-02 22:32 UTC (2 days ago)
(HTM) web link (markeasting.github.io)
(TXT) w3m dump (markeasting.github.io)
| alopes wrote:
| This is really good!
| cathalc wrote:
| This is truly music to my ears!
| dsjoerg wrote:
| Add buttons for people on mobile?
| snthd wrote:
| Even better, use the gyroscope.
| Otek wrote:
| hmm, I either don't know how to use it or it doesn't work in
| Safari
| peterfirefly wrote:
| Reload. Click in the window. Then rev up the engine. It breaks
| when you switch sounds -- so reload, select sound, click
| somewhere, etc.
| HeatrayEnjoyer wrote:
| 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.
| carlos-menezes wrote:
| This is way too fun.
| simse wrote:
| reminds me of this masterpiece:
| https://www.youtube.com/watch?v=RKT-sKtR970
| Clueed wrote:
| I love his videos but all the sound demos are a a bit too much
| sometimes :D
| nsingh2 wrote:
| Very cool, get to top RPM in gear 6 and drop down to gear 1 for
| an ear-rending shriek.
| xattt wrote:
| 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 wrote:
| ^^ 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 wrote:
| 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 wrote:
| Granted, but can a plastic bottle be modified to make my
| bike sound like a Star Wars speeder bike?
| otteromkram wrote:
| Why turn your kid into a degenerate before they've even reached
| adolescence?
| jcims wrote:
| Fun! Would be funner if it handled the money shift.
| elromulous wrote:
| If you liked this, y'all owe it to yourselves to checkout
| AngeTheGreat's channel. It's truly amazing work.
|
| https://youtube.com/@angethegreat
| fourteenfour wrote:
| 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.
| jkingsman wrote:
| Absolutely -- the procedurally generated fluid-sim engine sound
| generator is just wild:
| https://www.youtube.com/watch?v=2bJTkBsiTPc.
| genewitch wrote:
| 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.
| kivle wrote:
| 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.
| dclowd9901 wrote:
| 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 wrote:
| 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.
| Waterluvian wrote:
| 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 wrote:
| 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 wrote:
| The sequel to Dragster for Atari 2600!
| xnx wrote:
| 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 wrote:
| 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.
| dylan604 wrote:
| 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 wrote:
| 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.
| dekhn wrote:
| https://www.youtube.com/playlist?list=PLWxrK_3LlEr9WsfOL8N41.
| ..
|
| I absolutely love the reverse sound my Toyota RAV4 Prime
| (hybrid) makes: https://www.youtube.com/watch?v=gUT94MBt_Ao
| To me, it sounds like the future. Sort of a hovering UFO.
| People's heads definitely turn when I back out of my
| driveway.
| ttul wrote:
| 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 wrote:
| 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)
| repler wrote:
| 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 wrote:
| That sounds horrible.
| scoot wrote:
| 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?
| dekhn wrote:
| I didn't watch the video, but both practically and
| legally speaking, in the US when a car hits a pedestrian
| it's considered the car driver's fault, excepting some
| circumstances. The noise doesn't have anything to do with
| it- cars have to stop for pedestrians in marked
| crosswalks, and should stop at any formally defined
| crosswalk (not all "crosswalks" are directly labelled or
| signed as such).
| smitelli wrote:
| 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.
| Tao3300 wrote:
| > semi-nightmarish
|
| There's one I hear regularly that sounds like a choir of
| demons.
| spdustin wrote:
| 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
| buildsjets wrote:
| I'm not going electric unless I can choose the Hampsterdance as
| my motor sound.
| rootusrootus wrote:
| 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 wrote:
| 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
| vardump wrote:
| Seems like a great choice.
|
| https://www.youtube.com/watch?v=6WpMlwVwydo
|
| I think I'll petition NHTSA etc. to make this song mandatory
| for electric vehicles.
| wumms wrote:
| i3 with Jetsons sound (fake but fun):
| https://www.youtube.com/watch?v=4NgSZ8sjDgU
| akira2501 wrote:
| I recently started getting something related in my youtube
| recommendations and that is the recordings of PWM motor signals
| from japanese and american trains[0]. There's also people
| building their own boards and motors to generate these same
| waveforms[1].
|
| [0]: https://www.youtube.com/watch?v=mgxlM_kiDL0 [1]:
| https://www.youtube.com/watch?v=i0B2bvd9rFQ
| seoulmetro wrote:
| 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 wrote:
| Having a loud/annoying low-speed sound would be a dealbreaker
| for any EV purchase.
| seoulmetro wrote:
| 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 wrote:
| 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 wrote:
| 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 wrote:
| Holy crap, is that modified or do they all sound that loud?
| And not just in reverse? Not the future we were promised.
| seoulmetro wrote:
| They all sound like this (the newer models obviously,
| probably as far back as 2020)
|
| I'm sure there's a way to hack it and turn it off... but
| who's going to do that?
| HanClinto wrote:
| Absolutely delightful!
|
| This is way more fun than it has any right to be.
| explorigin wrote:
| Automation (game) does a pretty good job of simulating sounds:
| https://www.youtube.com/watch?v=GkU5KkF_L4I
| mosfets wrote:
| Anyone know good tutorials for simulating drone/airplane
| propeller sound?
| dylan604 wrote:
| That would be an awesome PsyOps sound to get people looking in
| the wrong direction
| hyperific wrote:
| This is a scary but incredible idea.
| dylan604 wrote:
| 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.
| draugadrotten wrote:
| Used to have fun back in my childhood playing Round Sounds
| from a set of speakers on the roof of the apartment building.
| People on the street started looking for the airplane.
|
| https://aircraftrecords.com/products/round-sounds-
| volume-1?v...
| genewitch wrote:
| 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!
| a2128 wrote:
| 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
| mywittyname wrote:
| 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 wrote:
| Deceleration is where you get fuel overrun and backfires, too!
| VrOOOOooomm-pa-pop-pow-ooooom.
| LoganDark wrote:
| 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 wrote:
| 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!!
| jonwilks wrote:
| The smile on my face...
| jonwinstanley wrote:
| 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?
| rzzzt wrote:
| 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
| sangnoir wrote:
| 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
| rootusrootus wrote:
| 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.
| culebron21 wrote:
| 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.
| numbsafari wrote:
| I've got one of these. It's called a toddler.
| genter wrote:
| I've also got one. It's called my jackass neighbor.
| numbsafari wrote:
| Frank? That you?
| jagged-chisel wrote:
| 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.
| rzzzt wrote:
| 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.
| giobox wrote:
| 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.
| jellydonut9 wrote:
| 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.
| bring_back_sky wrote:
| Digital sound is criticized but creating fake analog sound is
| celebrated.
|
| [1] Hyundai Ioniq 5 N https://youtu.be/HZczpFsv9ZY
|
| [2] The Secret To Making Your Car Sound Like An Old F1 Racer Is
| Found Under Pressure https://jalopnik.com/the-secret-to-making-
| your-car-sound-lik...
| inasio wrote:
| 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 wrote:
| Cars are already having in-built engine sound simulators,
| especially ones with manual gear to force people shift when
| necessary.
| adolph wrote:
| 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.
| ElCapitanMarkla wrote:
| My 4 year old is loving this
| osigurdson wrote:
| I managed to get negative RPM - cool!
| osigurdson wrote:
| 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.
| phs318u wrote:
| 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.
| fnordpiglet wrote:
| Yeah Skeuomorphic EVs is a bad idea.
| DonHopkins wrote:
| 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'Elegance 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'.
| otteromkram wrote:
| 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...
| fragmede wrote:
| you know they're the ones that required them, right?
| sandworm101 wrote:
| >> 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.
| IAmGraydon wrote:
| Unless I'm missing something, these sounds only occur inside
| the car. Can you explain how that affects you?
| constantcrying wrote:
| EVs at low speeds need to produce external sounds to warn
| pedestrians.
| techwiz137 wrote:
| In ICE cars, some people remove the mufflers and modify the
| exhaust for louder and more deeper sounds.
| anentropic wrote:
| anti-social vehicles
| lobochrome wrote:
| 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 wrote:
| Do you have an AMG example? Afaik they only play engine
| sounds in the interior.
| USiBqidmOOkAqRb wrote:
| Yes, you are missing something. Query for your favorite
| search engine is "active sound exhaust system". This is how
| it affects me.
| HPsquared wrote:
| I wonder if they could go the other way and use loudspeakers
| for external active noise cancellation.
| pancsta wrote:
| wtf is external noice cancellation
| eclecticfrank wrote:
| I believe they refer to something similar to this:
| https://youtu.be/y2RAsubSDAk?si=anuRAPCCI9Z0NQMJ&t=144
|
| Sorry, for the obnoxious video. I couldn't find another
| quick example.
| doubled112 wrote:
| https://www.jdpower.com/cars/shopping-guides/what-is-
| active-...
|
| They already do have active noise cancelling, but I believe
| it is to benefit the passengers.
| deadbunny wrote:
| 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 wrote:
| Try living downtown in South Florida.
| basil-rash wrote:
| 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!
| hollerith wrote:
| 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.
| qrohlf wrote:
| 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...
| wmsmith wrote:
| 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
| richrichardsson wrote:
| I love that when you get to max RPM in 6th gear and then just
| downshift to 1st you hit comically high RPMs!
| willis936 wrote:
| More than you ever wanted to know about this.
|
| https://youtu.be/p9SbDvMhCFs
|
| And a decent specimen.
|
| https://youtu.be/EjHMkkkLQaU
| al2o3cr wrote:
| 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 :)
| DonHopkins wrote:
| 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.
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