Live data from Hacker News

The rise of fake engine noise

washingtonpost.com

61–70 of 303 posts

Re: The rise of fake engine noise

#61
post #57

I want the Jetsons' car sound. My bother wants a Star Wars TIE fighter and my father in law would like the sound of a B-17, please.

I've always wanted the hovercar sound from Blade Runner, but I think I've found a new favorite with the TIE fighter :)

It wouldn't sound so appealing to the driver without the Doppler effect applied.

Re: The rise of fake engine noise

#62

I want the Jetsons' car sound. My bother wants a Star Wars TIE fighter and my father in law would like the sound of a B-17, please.

I personally like the sound of a 2-stroke diesel - one of the types of engines that died out due to their much higher emissions: https://www.youtube.com/watch?v=mkH9QRaQJM0

Re: The rise of fake engine noise

#64
post #54

In Amsterdam one of the bigger reasons given for the reduction of speeds on some roads is that it reduces the noise pollution. It would seem backwards to require cars to make more noise than they strictly have to. That said in mixed traffic situations it may save some lives, so essentially this proves all those guys that drove without dampers in their exhausts and bumper stickers saying 'loud pipes save lives' right…

Most of this noise is pumped into the car (to make the consumer happy), not out of the car. The two most common systems in use today are the car stereo (either amplifying the real engine's sound or by simply synchronizing a synthesis mechanism to the engine's load conditions) or a "sound pipe" which runs from the engine's air intake into the cabin ventilation system. This article strangely managed to conflate the two…

If my car would make less noise I'd be happy. It totally baffles me why someone would want more useless noise in their lives rather than less if that's an option. Music is beautiful, artificial engine noise is just that: noise.

Re: The rise of fake engine noise

#65
post #59
post #48

Am I the only one that associates loud noise with a weak engine? To me a powerful car just has an acceleration whine, and that's all. It's like a rocket exhaust: the "wilder" it is the weaker it is. A powerful, well tuned, rocket has a very sharp, and clean (i.e. not noisy) flame. Same with a car - if it's making a lot of noise, it's poorly tuned or designed.

It's not just you. It's also other people who don't have much experience with engine performance. Quieter mufflers restrict more airflow, something you don't want to do when you're trying to pass more fuel through a small engine.

I have plenty of experience with engine performance, and s/he was absolutely correct. An overly loud engine is is opening its valves too early or closing too late, and it can only be made quieter by restrictive mufflers. More modern and efficient engine designs, enabled by technologies such as variable valve timing, are quieter out of the valves because they convert more energy into motion instead of sound. Being quieter, they also have less pressure, and are less affected by muffler restrictiveness. Straight pipes might make a 1969 charger more powerful, but the effect on a modern V8 like the BMW N63 is negligible.

Re: The rise of fake engine noise

#66
post #59
post #48

Am I the only one that associates loud noise with a weak engine? To me a powerful car just has an acceleration whine, and that's all. It's like a rocket exhaust: the "wilder" it is the weaker it is. A powerful, well tuned, rocket has a very sharp, and clean (i.e. not noisy) flame. Same with a car - if it's making a lot of noise, it's poorly tuned or designed.

It's not just you. It's also other people who don't have much experience with engine performance. Quieter mufflers restrict more airflow, something you don't want to do when you're trying to pass more fuel through a small engine.

http://en.wikipedia.org/wiki/Tuned_exhaust

Re: The rise of fake engine noise

#67
As a motor vehicle enthusiast, I think it's important to distinguish "real noises intentionally amplified by physical audio routing" and "electronic recordings or audio processing played through speakers."

I don't object to routing engine noises to the cabin to allow for a loud-feeling vehicle (without necessarily being loud to people outside the car). To me, this isn't fake. The driver experiences real engine noise, with efforts to circumvent sound-deadening that comes in modern cars.

Playing recorded engine noises and/or digitally transforming sound is fake to me. It's a lie. I haven't driven a car that does this, but my guess is that it's noticeably simulated.

Re: The rise of fake engine noise

#68

This is hardly new. In college, we had a guest lecture from a mechanical engineer at $POPULAR_MOTORCYCLE_MANUFACTURER. He described how his team cooked up a new engine design that achieved some significant performance increase over the old design. Only problem? It didn't sound like a $POPULAR_MOTORCYCLE. The new engine was delayed for a year while they cooked up a mechanical noisemaker to adjust the sound.

Harley Davidson filed for a sonic trademark on their engine sound back in 1994[0]. (I think it failed, not sure.) But it's pretty easy to reproduce the sound to remind people:

Potato, potato, potato, potato, potato, ...

[0] http://en.wikipedia.org/wiki/Sound_trademark

Re: The rise of fake engine noise

#69

100 years from now cars will still make a vestigial sound that is simply taken for granted and not really considered until some wise-ass at a party starts in "Funny story..."

We will have to explain the origin of the sound coming out of our car speakers to our kids, like we have to explain the floppy disk icon for saving a file.

A friend's young daughter asked him why the phone made a "funny sound" when taking a picture. She's never encountered a film camera or heard a real shutter click before.

Re: The rise of fake engine noise

#70

As a motor vehicle enthusiast, I think it's important to distinguish "real noises intentionally amplified by physical audio routing" and "electronic recordings or audio processing played through speakers." I don't object to routing engine noises to the cabin to allow for a loud-feeling vehicle (without necessarily being loud to people outside the car). To me, this isn't fake. The driver experiences real engine noise,…

What if real engine noise is recorded in one part of the car, and then played back in the cabin?
Post reply on HN