Simulating an F1 V12, cross-plane and flat-plane V8s, unequal length headers and more
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In this video I simulate a variety of engines including:
1. Subaru EJ25 with equal length headers
2. Subaru EJ25 with unequal length headers
3. Toyota 2JZ
4. 60 degree V6
5. 90 degree odd-fire V6
6. 90 degree even-fire V6
7. GM LS
8. Ferrari F136
9. 9 cylinder radial
10. 1LR-GUE (Lexus LFA)
11. Rolls Royce Merlin V12
12. Ferrari 412 T2
00:00 - Updates
00:40 - Ange apologizes to Subaru enthusiasts
01:01 - EJ25 with equal length headers
01:29 - EJ25 with unequal length headers
02:21 - Ange explains why volumetric efficiency is wack
03:02 - Toyota 2JZ
04:03 - Even vs uneven firing engines
04:54 - 60 degree V6
05:25 - 90 degree odd-fire V6
06:43 - 90 degree even-fire V6
07:20 - Cross-plane vs flat-plane V8s
07:45 - GM LS
08:52 - Ferrari F136
09:55 - 9 cylinder radial
11:09 - Lexus LFA
12:07 - Rolls Royce Merlin V12
13:16 - Ferrari Formula 1 V12
#simulation #gamedev #programming
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Thanks for watching!
Hey guys, hope you liked the video. I decided to talk in this one, let me know if you prefer this over the last video. Thanks for watching!
Tbh don't listen to them you got a nice voice fr but honestly you talking makes the video feel more alive so keep talking more
jeez dude why are you so defensive? you make really cool shit, so just dont address the haters. you know, how you tried to have a slap fight with me because i said 'cursed' is stupid
Don't listen to them.
Your working in a radio show or something cuz your voice sounds cool. And your voice over is very informative so i don't see the problem. I'm kinda too excited for the final product and the future improvement and the possible project which i talked about before making an app that runs pre tuned setup and read tye obd2 scanner results from the car ecu and give audio to that. Would be nice to have our cars sound like our dream car which is realistically almost impossible to achieve or even if we got it we cant maintain it. Because maintaining alone cost a brand new car.
I like the voice over. Keep doing the voice overs
Something to consider (you probably already have) is licensing this tech to game makers NOT as a real time simulation, but to provide a workbench where they can develop and customize their source sound samples. You could envision an API and generative workflow where custom samples could be generated based on player input, then silently rendered and captured for use in the cheat sound engines they already use.
why would you not want to have it be a real time situation? "flattened" engine sounds are why we're all here: they suck and sound canned. i get that it wouldnt be very efficient but that can be improved over time
I suspect that this simulation uses less than a quarter of one core of a contemporary 8-24 core CPU, i.e. an optimization likely not needed going forward.
As an audio designer I would like to buy a software like this combustion engine simulator for sound source creation purposes. Customizable engine layouts and rpm automation will be a real gamechanger in interactive and linear media audio design.
@@mehmetcolaak This software is free and open source, licensed under the MIT license. You can use it anyway you like, and you can even make your own private versions of it and not need to publish it or pay royalties.
it could also be used to generate a huuuge library of sound that has perfect "tagging", then churning that through machine learning and basically make a optimized machine model that could be used in games. Similar to how Ubisof churned through petabytes of animation data and compressed it down to 10Mb of algorithms.
Aw hell nah Bocchi's anxiety turned her into an engine now
Lol
Bocchi the V8
Okbuddybaka
She's singing in engine language now
HAHAHAHA
I like how the cylinders resemble bocchi's hair. You're the engine hero.
Came here to post this
Bocchi the Engine Block
Clicked video for this
Bocchi the block
Bro read my mind...
That Ferrari V12 sound is just pristine.
the sound of engine braking in ES never ever stops being jaw-dropping
Needs more after fire, especially on engines that might be carbed or use none european tunes etc.
Playground should take notes. Their engine braking sounds horrible.
*Cries in two-stroke
This engine stimulator was designed to be insanely realistic. I'd expect to be horny from it.
The EJ25 with unequal headers was so accurate it startled me
Sounds like rallying.
Indeed, unmistakable I miss my old Subaru Legacy
Yh same, I laughed out loud at how similar that was
Same
Effectively, I said that Subaru WRC cars sound differently than tuned roadgoing ones XD
Your 5.3 LS at idle literally sounded identical to my Silverado when I started it with no muffler. That's impressive!
Same on my Sierra haha
It's insane just how accurate it is, love my ol 99 silverado. Ended up putting a flowmaster super 40 on it, loving every second of driving it
Just gotta say again Ange, these are by far the most realistic simulated sounds I've ever encountered. That V10 sounds insane. This project is so cool. Can't wait for the eventual 787B simulation. (good luck!)
a 26B rotary , this is a dream , even a 13 b is good
Nice to see that even BeamNG supports you and therefore recognizes the potential of your simulator for other simulations. Great work on the unequal length headers!
Wait. BeamNG is supporting him financially ?
15:21 BeamNG not sure if it’s actually them though but it’s cool nonetheless
It would make sense if BeamNG was, as instead of needing pre recorded sounds for cars, different manifold types, firing orders etc, if this could be implemented in the game, the sound could be artificially created, and would work perfect for the different engine modifications you can do in game
@@TheBeeMan1994 as astonishing and great this piece of software is, all the details of sound, different configuration, I don't think it's feasible to use in gaming industry. I don't think devs will switch to something like this and sacrifice pretious frames per seconds to be as close to realism as they can. This kind of simulation is expensive and as Ange even said v12 is the max his pc can handle. Imagine adding to it rendering graphics, physics engine etc etc. Game would run in 5 FPS on high end PCs. But maybe pre recording sounds would be a use case
Talent + hard work = innovation. How could we not support that? :) Best of luck with further development!
There must be nothing more satisfying than writing a physics engine and getting that validation that you've simulated everything right when the sounds are so close to real life. Impressive and promising.
Nice comment
The non-blown version on Merlin is called Meteor and was developed for tanks.
The F1 engine at the end is an amazing demonstration of data compression! The artefacting you hear is because the physics calculations have a defined resolution/bit depth so when the speed gets past that limit, the signal becomes lossy. I've understood the concept for a long time, but seeing it come up sort of organically in the simulator made it click in a different way for me. Pretty cool
I would love to see a rotary engine in the simulator soon!
Like a Wankel Engine? That would be interesting, but also a pain lol
@@davidlewis4237 Yeah
Then we'll know what a rx-7 would sound like if "brah" were a detonation sound 😂
WANKLE ENGINES !
It would be difficult to simulate the apex seals flying out the exhaust
From a musical perspective it's fascinating to hear how the more balanced the engine and headers are the purer the 5th tone is (2nd harmonic @ 3/2 ratio) And past 6 cylinders a major 3rd tone appears.
You are so right! I wonder if the amount of cylinders really matters though. When it's equal firing I think the only thing that's different is the amount of power strokes per minute at the same RPM.
Can you explain how to relate music to car engine sound ? I understand that it is a succession of bangs but how does firing order and interval relates to in term of music ? Pitch ?
@@helldiablo8471 essentially. Because of how often an engine fires, each firing of a cylinder can become the peak of a sound wave and the time in the middle can be the bottom, so if you rev into the audible frequencies it can be related to music, and then depending on the size of the cylinder, how many there are, firing order, etc., it can make different sets of notes at different intervals that blend to make chords.
@@helldiablo8471 it effectively creates a different waveform. The peaks and troughs of the waveform are in different "locations", as you can see by the "exhaust flow" graph on the sim. It's similar to looking at a synthesizer oscillator's waveform through an oscilloscope. Different shapes produce different harmonics. The smoother and more "even" the waveform, the "cleaner" the exhaust note. Hence the cacophony of a crossplane UEL V8 versus the precise tones of an equal header flatplane. Plenty of other variables at play of course. That's the simplest answer I could think of (or at least how I see it as a modular synth nerd lmao)
@@helldiablo8471 All sound is essentially vibrating shit. You get shit to vibrate quicker, then that's pitch. You can kinda observe this by using a ruler and a table. Hold a ruler against the edge of a table with your hand then slap that shit silly, the further out the ruler is, the slower it vibrates, and the slower it vibrates, the lower the pitch. honestly y'know what? you probably already know all this but I wrote this comment so might as well post it
I could recognise the ferrari feeling on the V6 and the downshift on the LFA with closed eyes, extremely impressive work
How about the 90° V6 in a modern Jaguar F-Type V6S? kzhead.info/sun/ibugmrd7noegrJ8/bejne.html
Your simulator should be the foundation for any race sim sound engine... the boom, rasp, thrum, and howl are characteristics that even modern race sims cannot or barely achieve. Also the change of sound from unloaded revs (14:17) to loaded clutch engagement (14:28) is really impressive!
im very impressed with the LFA. i think it only sounds off because of the special exhaust the LFA features. in case youre reading this and don't know, the LFA design team actually hired Yamaha to help nail the sound both in and out of the cabin, which would be difficult to simulate. amazing work as always ange!
I love Futaba lol
it kinda sounds like it's on an engine dyno.
it sounds a bit electronic still if you get it in the game, but definitely still recognisable
You could improve your demo runs by adding flyby's, incorporating the doppler effect. It would help showcase airplane engines for sure. Stellar work so far!
for airplanes, it is the echoes interfering with itself
The unequal length headers on the Subie sounds a lot better! Looking forward to the forced induction sounds. Been super cool hearing all the different engine types.
I'm the exact opposite on Subaru engines, I think they sound better with equal length headers. 🤣 It just shows that everyone has different tastes. ✌🏼🧔🏻👍🏼
Sounds very realistic indeed! I'm going to hunt this sim down and tool with the exact lengths of the header pipes, always wanted to know what halfway between stock and equal length would sound like.
I'm not a engines/cars/racing enthusiast, but this is the kind of stuff that gets me watching transfixed. It is undoubtedly the coolest thing in the world of simulators right now.
Would it be possible to perform a simulation not in real-time, record the raw results of the pressure wave and generate and play sound afterwards? I think you even mentioned having written software to capture the physics engine simulation in that non-realtime mode. Oh and wow, this piece of software engieering is absolutely amazing. Joy to watch.
Yep it's possible! Thanks for watching :)
@@AngeTheGreat are you taking requests?
The extra narration is great! It really makes it feel more like a video instead of a demo reel. The added explanations of the engines and what makes them interesting to try out are a great addition IMO.
i came for the bocchi themed engine. but then i get a nice eargasm too. a big W
I really hope this redefines how engine sounds are done in videogames. It's an incredible piece of software.
I doubt it. This simulation is very cpu intensive. Basically it comes at the expense of the performance of the actual game just for the sound of the car.
You just turned Bocchi into an engine
People keep saying this and I don't know what it means. . .
@@MaydupNem Bocchi is a pink hair anime girl from the anime Bocchi the Rock. She has blue and goldish hair accessories which with her pink hair make up her appearance. The colours in this engine just so happen to match the exact colour scheme of bocchi very close
Absolutely beautiful! Commented on the other video a bit ago about the EJ; I was so immersed I didn't even realize it was missing the UEL sound (but also my BRZ has a less unequal header than the WRX/STi so it'd be more noticeable for those guys) but man the UEL sound just made it SO MUCH BETTER. Also I didn't mind the talking at all; both learning a bit about the engine histories, and how you came to that point in recreating the sound, were nice additions. Only thing I felt was missing was the extra segment of each engine where you removed sound except the "ticking" for lack of a better term, to illustrate the firing order at a slow/below-idling speed. It was a nice extra bit to have, though the absence didn't detract from how fantastic this video was. Looking forward to more! :]
The idle on the Tipo V12 sounds unbelievable. The audible pitch variation during is extremely realistic
The LFA v10 was what we were all waiting for. It made me cry. The sound of an angel
I'm currently on my second STi, and that rumble made an involuntary smile creep onto my face... well done, can't wait to try this out for myself!!!!
Really enjoy your videos! It's great to hear your voice again. I find it interesting when talk about the small details of the engine, it really helps me to understand what the differences are.
It's awesome that you released a compiled version with instructions for those of us who are less savvy. Thanks!
Tbh, I learned the sound difference between unequal and equal length headers from Jason Cammisa's related video of his "Know It All" series and I have to say that I now know what to prefer for a Subaru in order for it to keep this distinctive base rumble. And this, of course, is the unequal design of the headers. The equal ones really make the Boxer-4 sound like a Civic Inline-4, to the point where you just can't tell one apart from the other.
Not even remotely true. Even length boxter headers have a distinctive sound that anyone into Volkswagens will recognize from high performance beetles or Karmann ghias.
@@Diax1324 You're obviously talking about old air cooled Flat-4s. Modern watercooled ones sound exactly like what I described. Hell, when I first heard an STi with equal length headers revving out, all I wondered was "That doesn't sound like an STi, how the hell did that happen?".
@@rayboccino5174 No, they sound very similar. I am not talking about intake sound or valve tick. Pure exhaust sound as they head down the drag strip. kzhead.info/sun/gLmpd7Skln9mrYU/bejne.html Unique sound that sounds like an I-4 unless you hear the bass impulse.
@@rayboccino5174 yeah because watercooling totally changes the sound of an engine.
13:00 that F1 sound 🤗 thank you for sharing your work with everyone
As someone who loves the complexity of sound in music and engines, this is what I dreamt of and it's awesome, thank you so much
honestly I love everything about this. I hope things will go well once you've released the final version of this simulator, it feels amazing to see someone like you and your community to improve car sounds in other games
This sim is so amazing!! A tip is to add a brake button, so you can slow down faster.
Yeah that's what I'm really missing now. Feels really weird as a racing fan to hear the thing slamming through the gears and then just coast. Would imagine upping the resistance on the driveshaft wouldn't be too difficult, though I might be speaking too soon there. Or have the speedo decelerate a a set vallue.
yes that would also require another level of simulation however to simulate the load on the engine under braking
Bocchi the rock piston
You are incredibly talented and I am grateful for all of your work going into the development. I specialize in engine management implementation and this is just way too cool.
This is getting so complete. I'm glad to see you added unequal length headers. I even asked in the last video if the simulator already had that feature. I'm looking forward to seeing forced induction and engine mapping implemented. I'm loving this project
Great video as always! The commentary is especially appreciated and compliments the demonstration perfectly! I hope you manage to successfully implement super and turbo charging in your final release, as well as supporting multi-bank radial engines. Keep up the good work and good luck!
really well done! i was looking for the V8 cross vs flat, sounds really close to reality!
This is crazy. Amazing job.
This whole project is a dream come true for me, I hope you know that.
Same, if I was a little bit smarter and actually learned coding or how to code I just might have come up with this sort of thing too. I always wondered if it was possible, if it could be done, and now I know, and it's the coolest thing ever.
Looking really great! One thing I have missed from these videos is hearing the throttle plate somewhere other than wide open or shut. You know, as if there were corners, not just a drag strip. ;) Great work!
The unequal length headers one is amazing. Very great work you did there!
this is the very first youtube vid i clicked the notification bell! cant wait for more. i'm a tractor and engine kind of person, however i WILL learn more about software development if this doesnt become more user friendly in the near future. Keep up the good work, awesome!!!
It would probably be difficult, but I’d love to see a Napier Deltic engine.
i just googled it, what the frick is that
@@NotAgentAJ Train motor - big opposed piston two-stroke diesel. Look up some videos, Class 55 (I think?) locos had two of these installed, and nothing sounds like a pair of Deltics running together.
Let's go for Napier Saber too, H-24 my beloved. Edit: Nvm, just got to the part where he says that V12 is pretty much the limit as of now.
Yes!! Absolutely! This channel has been a great discovery, I'm enjoying how it develops. Each to their own, my other ear-gasms are the BRM V16 of the 1950's, just about all of the Silver Arrow Mercedes and Auto Union GP cars, the Merlin and forever the Messerschmitt DB605, that supercharger howl then the growl is phenomenal.
I absolutely vote for this one as well!
man that first V-12 sounds HARDCORE!
The Merlin? That's because it absolutely is! The Lancaster bomber ran four(!) of these engines. You have no idea how glorious they sound at full throttle
And in addition to the Spitfire, some variants of the Mustang also ran these engines.
@@jaco1982za Its crazy I've been at an air show that's exactly how it sounds (spitfire)
@@squidwardo7074 If you think the Spitfire sounds awesome, you should hear the Rolls-Royce Griffon engine. The Avro Shackleton ran for of those engines and the chest shaking roar of all four at full throttle during an engine run is unreal
@@jaco1982za I recommend you check out Precious Metal. Currently not flying due to fire, but it's a P51 with a Griffon engine complete with Shackelton contra-rotating prop. The sound at 440 mph is just incredible.
I like that you made a simulator which answers the many questions I had when Toying with designging a new crankshaft for my engine (a few year *like 7 years ago).
The F1 V12 engine sounded fantastic!😎 Can't wait to see your more recent videos!
I never want your videos to end lol. Keep up the awesome work! Would love to see (hear rather?) some backfires.
Remarkable how close to the real thing that Merlin sounds! Damn, other than rpm shifts that are more like on a car, it reminded me of Spitfires Ive heard in person.
your simulator is the best single core workload I have ever seen!
Great video. Love the sound of the Lexus V-10 and the modern V-12.
The ej sounds amazing now
The Rumble Sound can be called Flamming, from the musical term "Flam" - Percussionists use that word to describe slightly offset strokes in a rhythm that aren't so far apart that they constitute association to different beats in the measure, but also aren't close enough to sound like one stroke. It could also be called "Gracing" - the Flam is made out of a Leading Stroke and a "Grace" Stroke.
Absolutely love this. Keep it up. Every automotive game should take note or just pay you for this program. Sounds phenomenal
Amazing Work , I always thought about the feasibility of this
Bocchi the Rock can morph into piston engines... interesting.
Honestly more Game Devs need to know about This and work with you on their games because this sounds better than 90% of all Racing games ever and with more time and resources this could be incredible!
This is absolutely incredible, you have outdone yourself AngeTheGreat!
Well done, thank you for explaining why Subaru’s sound the way they do.
Yes, the Merlin and the Scooby are acoustically really close, despite both being forced induction. Great stuff! 👍
Some of the radial engines used a special gearing to make the big end assembly to stay at a fixed rotation, instead of being directly connected to one of the pistons. This allowed a more uniform piston action, but probably it was more prone to failure, and caused other problems. Keep up the fantastic work, I love it! 👍
I can't picture that, can you name an example so i can look it up?
@@16v8vFMG - Nordberg radial engine.
Wow. A colleague sent me the link to your first part. Very cool stuff, you should be very proud how accurate those things are sounding! Maybe a crossplane i4, like the Yamaha R1?
little late, found this project randomly and i find it very cool ! keep it up
The V4 from the Honda NC30, 35 and RC 30 and 45 has a rather unusual firing order that makes quite the lovely burble.
man the fact that you went back and made unequal length headers simulated is awesome. really loving seeing this simulator develop and be recognised
11:08 you absolutely nailed the sound of the 1LR-GUE
Excellent work, I've just downloaded this now. Love that the Spitfire engine came with it!
One thing I noticed was that some sounds seem like they are inside a closed room which is annoying. Amazing project!
Wow you keep on impressing with this sim, that uel ej and the lfa engine sounds amazing! Only thing I’m missing from this is the raw exhaust sound you get in real life, I think some of the engines sound a bit muffled or tinny, the f1 v12 for example kinda sounds like it’s inside a garage on a dyno or something. Also the lfa sounds more like you’re inside the car, rather then on the outside. I think proved my point clearly now 😂 Nonetheless the things you are doing with this is really cool and I can’t wait to see more!
Absolutely amazing bro, keep up the good work 💪
This is incredible! Well done!
fantastic as always! Please do the Volkswagen VR6 in the next video-- It's a very interesting motor, It'd be cool to see how your program handles it (Look up MKIV Golf R32)
12:18 The pieces disappearing suddenly just killed me 😂
Just imagine if that's what the limitation on engine revs was in real life lol "Be careful not to rev it past 7500 or so, because above that the pistons literally stop existing, and we have no idea why."
KZhead has unsubscribed me several times and I'm pissed, you make some awesome videos and this project is insanely impressive. Also, thanks for the Subaru love.
Okay, I have to thank you a whole hell of a lot. I do a lot of writing about a vehicle with a 9-cylinder radial. The way I have things work, many of the clips of such engines you might find online aren't quite how I'd like them to sound (usually poor audio and lots of idling, revving the way I present in the story isn't something you do with them). Your demo here gives me a very very good idea of what it would sound like to hear, and it is a huge, HUGE help to be able to describe the sound.
sounds like the deepest motorcycle ever
No way Bocchi the rocker shaft
WEHAT THE FUCK!!! You are so amazing at not only programming but also catering to the requests of those around you! thank you so much for the amazing sim and we all appreciate you so much!!
When this releases I will absolutely be buying it. Phenomenal work.
Great work as always, beyond glad that you were the one to finally bring this software into reality. A perfect case of "I didn't know I needed this until I got it) I'd love to see the old four cylinder 250cc motorbike engines from the CBR250RR / ZX2R etc. that rev to ~20,000RPM. Hell while we're at it Honda's old race 250cc six cylinder would be an even better one to see because being a race engine from the sixties good footage of it is a lot rarer than the 250 four cylinder bikes. At least here in Australia you'd be hard pressed not to find at least one or two CBR250RRs at every meetup.
The "inline 5" by flathead fascinated me quite a bit as it genuinely sounds like its gonna throw a rod at lower RPMs. I dont know if you took something like that into consideration. I just think its cool, like the rest of the program
0:24 I like that one of the very few videos you watched was "made the worst engine in ATG's engine simulator"
If the original studio that made midnight club was still alive i would be even more exited but this is the most amazing thing i have ever seen
Flat v8 and v10 are my favourites so far. They sounded dangerous!
I would love to see bike engine sounds. Great work!!
he did the hayabusa last video btw
@@pancake5830 yea but it would be cool to see other bikes too, maybe some harley or the h2
Yamaha R1 with the crossplane engine. _Must have!_
Those engines sound marvelous. The Merlin sounds close to how I remember it IRL. The Merlin is the only one of those engines I actually know the sound of reasonably well and your Sim is close. It's not perfect, but you're simulating the engine, not the entire plane, and the rest of the plane can make it sound different (the Merlin in a Spit sounds a bit different to the Merlin in a Hurricane). Also, Rolls Royce did make a non-supercharged Merlin for use in ground vehicles, specifically tanks like the A27 Cromwell.
This is one of the most epic C++ simulators I have ever seen!!
yay! I was thinking about asking about spitfire plane engines, and here it is!
Pretty amazed by the Ferrari V12, I happen to think the 412 T2 is the best sounding car ever made, at least in real life
Bocchi the Engine
That LFA sound, even simulated, is just so exciting.
i much prefer the explanations in this video because it really helps me understand some of this stuff as a non-car guy, the previous video i just kinda listened to the cool engine sounds and guessed a bit at what some of the dials and graphs did
As a musician and sound designer, I see an interesting new approach to a virtual instrument here. Imagine creating an engine specifically for the sound, and adjusting parameters on the fly to change the tone of the instrument. This would be like a wah pedal for a guitar, but I might be adjusting the header length or exhaust valve timing instead.
Bocchi the Cylinder
That UEL ej25 note is glorious!
Radials! You did it! That's amazing!
I'm not sure if you're planning on adding the ability for this program to do diesel engines, but if you are I would be super excited. I have been keeping an eye on this project since you released your first video, because I think it would be a super cool tool to make a War Thunder sound mod (if that's even possible). Being able to simulate a tank's historic engine sound would be a dream come true for me! If you have the time I think you should simulate the iconic Model V-2-34 38.8 L V12 Diesel engine that was in the T-34 tanks used by the USSR.