Sound generator possibilities of implementation

[medo]

Has anyone ever thought about a sound generator ?

[arber333]

Like we would add a 12cylinder Merlin engine sound to ev?
Never !

[arber333]

The thought actually crossed my mind. Using marine speakers with model aircraft sound modules. I seen a circuit somewhere that immitates 8cylinder engine.

Or someone could add inefficiency to zombie code below 30km/s and produce a kind of jedi sword sound...

I noticed ACIM motors produce a squeaky sound when starting since amplitude is higher than optimal

[medo]

Like we would add a 12cylinder Merlin engine sound to ev?

why not
no, seriously, I have had pedestrians cross the street several times because you can't hear anything at low speed, it's for safety and of course it's not meant to be a game changer, maybe the Porsche Taycan module, but I think it runs on flexray, not easy

[Zieg]

I made some progress with a teensy and a WAV shield. Used a cheap mono amplifier and a 40mm speaker from an old set of computer speakers. The plan was to write a code that would play the sound when direction mode was F or R and speed under 30kph. Haven't bothered to finish the project though since it's not a legal requirement for me.

If you want to change the pitch with speed it gets more complex. I also had to take care to generate my wav file so it could loop smoothly. Can share it later if anyone cares. Created it myself from scratch in a sound editing program. Sounds a bit like an electronic 'wub wub wub' without being too much like the jetsons or anything cartoonish

[muehlpower]

I have integrated audi exhaust loudspeakers. There it is called “active silence”. As my car is old (1950) and I want to preserve the character of the car, I simulate the sound of the combustion engine including the automatic gearbox. This is not a legal problem as long as it is not louder than the original car. If I want, I can also switch it off or only activate it at slow speeds.

[uhi22]

Do you just replay fix rpm sound or does it change depending on speed?

If somebody likes Hyundai sound, the modules seem to be easy to control, and sometimes cheap. Found one of the ioniq for 30Euro on the bay, will have a look inside.
viewtopic.php?p=79096#p79096

[medo]

If someone could hack the sound module of the Porsche Taycan, that would be my favorite

https://www.youtube.com/watch?v=fxSBMTwE858

59D - Motorsound.pdf

(74.38 KiB) Downloaded 360 times

[arber333]

why not
no, seriously, I have had pedestrians cross the street several times because you can't hear anything at low speed, it's for safety and of course it's not meant to be a game changer, maybe the Porsche Taycan module, but I think it runs on flexray, not easy

See here off the shelf...
https://www.conrad.com/en/p/reely-v8-so ... OHb1stRxeY

https://www.mtroniks.net/prod/Sound-Sys ... ndv8bb.htm

https://www.mtroniks.net/prod/Sound-Sys ... undv12.htm

https://www.aliexpress.com/item/1005007 ... ry_from%3A

https://www.aliexpress.com/item/1005005 ... ry_from%3A

[muehlpower]

Do you just replay fix rpm sound or does it change depending on speed?
[/quote

If the question is addressed to me. The frequency changes with the calculated speed, the sound is load-dependent (accelerator pedal position) It shifts 4 gears, the shift points vary with the accelerator pedal position. When accelerating hard, it shifts down a gear. The slippage of the torque converter is also simulated. The calculated engine speed is also displayed on the instruments.
]

[uhi22]

Wow, great. Is this the OEM sound machine or something selfmade?

[muehlpower]

I have installed this system. The engine sound is generated by the Audi control unit (black box), which also contains the amplifier. The blue Kufatec box controls the Audi box and needs two CAN bus signals, one for engine speed, one for load. I have programmed the gearbox simulation on an AVR AT90CAN128, which calculates and generates the necessary CAN signals and controls the rev counter and all other displays. There are 2 speakers mounted in the rear of the chassis which end like exhaust pipes below the bumper.

[JonasErnst]

I want to use the VW Soundmodule 1EA035335
This is the same one as in the Audi E-Tron GT and maybe the Porsche. It will take some time till I get to this point in my project, but when I get this to work I will post a Tutorial on here. Ill keep you guys updated

[medo]

I also ordered one from the USA, these things are very expensive here, do you have a circuit diagram or the pinout for it?

i thing is the same

[uhi22]

Different Part numbers. 1EA...... is MEB (the current VW platform), the 9J1...... looks like a Porsche part number, the "MLB EVO" is the old Audi line. Not sure how similar they are on the engine CAN.

[robertwa]

Jeep wrangler in Canada with GS450H and Thor sound generator

[medo]

Cool,
Due to legal requirements, all newly registered electric cars have to produce artificial noises since July 2021 so that pedestrians and cyclists are better protected, so this should also be tackled

[LRBen]

This was discussed quite a few years ago and I looked into it for a little while but nothing really came of it.

viewtopic.php?p=29585&hilit=vess#p29585

The Hyundai Kona VESS unit looked relatively simple to hack. I never got back to my Ioniq unit since other things have taken priority.

[rstevens81]

Surely a zafira pump fills the requirement?

[DVD3500]

I saw a go with an empty jug and a small electric motor with rope attached that smacked the jug to make V8 sound...

[muehlpower]

The legal aspects for Europe can be found in the Regulation (EU) No 540/2014

[E46Driver]

Definitely more fun to build something yourself.

But, if cost is no object, BORLA already makes a system. I don't know if its worth USD$1600 though!!! The below link has a good video:

https://www.borla.com/products/ford-mus ... tem-253100

[arber333]

Er...i didnt know motor can produce music... check this thread

https://endless-sphere.com/sphere/threa ... st-1813540

[uhi22]

Had a closer look to the Hyundai Ioniq VESS, which may be uses the same concept as the Kona. Looks like these offer good opportunities to add an own sound. The sound samples (for driving, reverse bing and annoying beeeep) are stored in a SPI flash, and played by the Yamaha sound chip in different speeds depending on the vehicle speed. Was able to read the flash and listen to it on the PC with Audacity Did not yet patch the original unit, not sure whether I go this risk before the TÜV date ;-/
Unfortunately there are different software versions flying around, and the VESS which I ordered cheap, with version 1.00, does not play in my car at all.
Results here: https://github.com/uhi22/Ioniq28Investi ... oundSystem

[P.S.Mangelsdorf]

Had a closer look to the Hyundai Ioniq VESS, which may be uses the same concept as the Kona. Looks like these offer good opportunities to add an own sound.

Ok that would be awesome.