DIY fake exhaust tone

[got3fords]

I feel bad for the OP, this got way off topic and I am partly guilty.

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[9zero1790]

Hmmm, this reminds me of ski boats with speakers mounted on their roll bar arches - of course, the music is blasted at max volume so the skier/tuber and everyone on the beach can hear their crappy selection.

If you do this, please be gentle with the volume….and the bass. ?

the first time i saw one of those audio tower decked out ski boats i was kinda shocked. i thought it was a joke or like a audio show piece for competition. But then again im old school and grew up listening to direct drive in board engines. loud music while underway is not real safe, cant hear horn signals or vhf etc. oh well lol.

 

[9zero1790]

I am looking to start a project to add a fake exhaust tone to my truck. I know … I can’t believe I am actually doing this as a purist gearhead myself, yet audis and maserattis have it too.

There is nothing I can do to my small diesel as it has a cat and a DPF with an aftermarket exhaust that would still be compliant in Europe.

I can buy off the shelf systems like Maxhaust that connect to the OBD port to read the RPM, yet I want to build one myself with an arduino, an amplifier and a ported box speaker enclosure.

I need a simple way to read RPM without CAN decoding or … to read the throttle, and I am looking for ideas.

The pedal is a potentiometer, I guess I can read the voltage or resistance, either would work. Any thoughts in this?

The fake noise will be outside, not inside.

some one may have said this already but i wonder if the euro ranger also has electronic fake engine sounds that can be manipulated with forscan ?? if it does that could be a direct to try. maybe you can put in the audio file from something with a more pleasing sound.

 

[Dave1899]

WOW ... I laughed at the OP but after I watched the video of the Tesla I have a different opinion! It sounds amazing. Good luck with this project onobeka!

 

[THLONE]

Dam if you are going to all that trouble then I can think of better noises to use.

 

[Synfulz]

That is hilarious! I have played this over and over, ROFLMAO!

 

[Cmar]

No, I do not. Only MY2019 get those. And yes, I would turn it off too if it was a petrol engine. Not with a 4cyl diesel, where there’s a lot o pinging noise, rattles and grinding especially when the engine it’s cold. I drove Ranger Raptors and Thunders, the 2.0 diesel is even worse than the 2.2 yet better than the 3.2 in terms of harshness. I have already deadened a few panels, based on sound localization measurements I’ve done with directional microphones. The firewall is the culprit on the Rangers and that’s very hard to deaden without a full engine or dashboard removal.

Probably most of you think of my idea in terms of loud and show-off, while I’ve never mentioned this, quite the contrary. Low cyl diesels are notorious for high pitch sounds, I want to somewhat color that sound with some lower tones. It can also be an in-cabin project in the end, however it would be extremely difficult to compose the tone as the inside noise has virtually no transfer path except air while the engine has lots of it. Probably also the reason many of tou think the fake engine sound in your speakers is unpleasant.

I have the 3.2 5 pot diesel, it actually sounds pretty good, because of the odd number of cylinders it has a "V" engine type roll at low speeds and sounds even better when you roll on a few revs. It does rattle a bit when cold but once warmed up is really pretty quiet when running on the highway, unless you plant the throttle say to overtake. Even then not much point in pushing it much past 3200 revs, just a lot more noise, a lot more smoke, and not a lot more go!

 

[onobeka]

I have the 3.2 5 pot diesel, it actually sounds pretty good, because of the odd number of cylinders it has a "V" engine type roll at low speeds and sounds even better when you roll on a few revs. It does rattle a bit when cold but once warmed up is really pretty quiet when running on the highway, unless you plant the throttle say to overtake. Even then not much point in pushing it much past 3200 revs, just a lot more noise, a lot more smoke, and not a lot more go!

One question: does yours have a DPF? If not, then it’s a different tone than I am speaking about. With a cat and dpf and a muffler, which is the stock configuration there is no exhaust tone only engine and that sounds uncultivated to say, at least.

 

[Strobes]

You should ask your wife for advice… she’s been perfecting the art of fake noise when the power just ain’t good enough!!

Am I right?

?

 

[D Fresh]

One question: does yours have a DPF? If not, then it’s a different tone than I am speaking about. With a cat and dpf and a muffler, which is the stock configuration there is no exhaust tone only engine and that sounds uncultivated to say, at least.

So why not just go to an aftermarket exhaust and be done?

Easier, cheaper, and much less time consuming.

Also, since somebody said we were going off topic, I'll be the first to say it.


Op, if you remove your damper, the truck will sound better.

 

[D Fresh]

and the performance comes back.

the placebo effect that the Damper improves it, is just all in their heads.

For sure.

I think the placebo only takes hold because of the increase in estrogen.

 

[myothercarizahearse]

You should ask your wife for advice… she’s been perfecting the art of fake noise when the power just ain’t good enough!!

Am I right?

?

*WARNING* bad "joke"

Spoiler: bad joke

How do you know when a woman has an orgasm? who cares

 

[onobeka]

No exhaust in this world or the next will output anything on this engine without a CAT and DPF delete, period! I am not going to do that!

Speaking of noise, my wish just got fulfilled today thanks to my wife!

 

[HDEO]

Could you incorporate a microphone into your system to provide an input of the engine as it’s running and then use something like a guitar pedal or vocal pedal to shift the frequency down. After you modify the signal then send it out to an amplifier and speaker. Maybe take the input somewhere in the engine compartment to the front and play the sound back under the floor where you’ll hear the mix.

 

[onobeka]

Could you incorporate a microphone into your system to provide an input of the engine as it’s running and then use something like a guitar pedal or vocal pedal to shift the frequency down. After you modify the signal then send it out to an amplifier and speaker. Maybe take the input somewhere in the engine compartment to the front and play the sound back under the floor where you’ll hear the mix.

That is an amazing idea, completely analog simple and could be effective! As said before doing a DSP processor will require some serious hardware.

I will give it some thought. Thank you!

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