Hyundai is working on developing the world's first Road Noise Active Noise Control system (RANC)
RANC [...] is able to analyze various types of noise in real-time and produce inverted soundwaves – for example, it can counteract the sounds created between tires and wheels or the rumble sounds coming from the road.
According to Hyundai, RANC can reduce in-cabin noise by 3 db.
This technology was developed with future vehicles in mind. As internal combustion models get phased out, vehicle noise will primarily come from three sources: powertrain, road and wind – but since electric and fuel cell vehicles make almost no powertrain noise, quieting road and wind noise will become imperative.
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Hyundai Working On Active Road Noise Control Technology
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(Score: 2) by corey on Tuesday November 12 2019, @10:53AM (3 children)
3dB is barely noticeable to the human ears (5dB is what most listeners need to perceive a difference [abdengineering.com]). I don't really see how this is a feature at 3dB. But it's a function I've been wondering when the car manufacturers would implement.
(Score: 0) by Anonymous Coward on Tuesday November 12 2019, @11:28AM
the calculation goes like this:
1. it costs ~X dollars to implement feature A for cars.
2. we can ask for an extra Y dollars for feature A.
3. after selling N = (X/Y + tax details) cars, Y will basically be free money for us.
4. is N small enough? go ahead and do it.
the usefulness of the feature somewhat comes in at the Y estimate, and my guess is that there are enough idiots to pay for this.
(Score: 2) by RS3 on Tuesday November 12 2019, @04:46PM
It's probably a mistake. When reading anything, esp. news, I try to remember it could have mistakes. 30 dB would be significant, and possible.
(Score: 2) by FatPhil on Wednesday November 13 2019, @12:40AM
Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves
(Score: 0) by Anonymous Coward on Tuesday November 12 2019, @11:41AM (1 child)
I'm so glad this is finally solved. The world is a better place now.
(Score: 0) by Anonymous Coward on Tuesday November 12 2019, @11:52AM
I'm down with it. No sarc.
(Score: 2) by Rich on Tuesday November 12 2019, @12:14PM
Popular Science Magazine, April 1992, Page 87: "Taking a ride with Antinoise".
or from 2009: https://newatlas.com/lotus-active-noise-control/11486/ [newatlas.com]
So much for "the world's first". More like "the old patents ran out".
I've heard from someone having a ride in the demonstrator car. First they mixed massive V8 or thoroughbred V12 sound into the antinoise, which must have been mentally disturbing, given that it was installed into a tiny Citroen AX. Then they switched off the mix-in, which resulted in a stunning impression of silence.
(Score: 4, Insightful) by KritonK on Tuesday November 12 2019, @12:27PM (1 child)
Don't drivers want to be able to hear these noises, so that, when the noises change, the drivers may know that something is wrong?
(Score: 3, Insightful) by Runaway1956 on Tuesday November 12 2019, @02:43PM
Yes, I do want to hear my vehicle. Winter time driving? You can actually hear when you run off of wet road, onto ice, and vice versa. More, you can hear the gravel or sand crunching under your wheels, and you can be somewhat confident that the ice isn't solid. Driving in the autumn, wet leaves are a pretty big hazard. You can HEAR those leaves, at night, when you may not be able to see them very well. Auditory cues are important to an experienced driver, who knows what all those sounds are.
I guess that's one of the reasons inexperienced drivers have so many accidents? Not only do they not look (up from their phones) but they're not listening either.
(Score: 1, Informative) by Anonymous Coward on Tuesday November 12 2019, @12:41PM
Huh, lots of cars already have this ...
(Score: 2) by Gaaark on Tuesday November 12 2019, @02:30PM
Will it compensate for the noise my son makes?
Or the noise kids make when I drive over them?(Hint:10points EACH!)
Oh, wait...I have earplugs for that.
--- Please remind me if I haven't been civil to you: I'm channeling MDC. ---Gaaark 2.0 ---
(Score: 0) by Anonymous Coward on Tuesday November 12 2019, @03:49PM
I'm fine with a bit of noise in the cabin of the car - as others have pointed out, it gives you better awareness of the driving conditions. What I'd like is for noise cancelling so that the road noise of cars driving past my home is reduced. Especially when their tires hit the rumble strips leading up to the stop sign. Those are too damn loud in the middle of the night when I'm trying to sleep!
(Score: 0) by Anonymous Coward on Tuesday November 12 2019, @07:20PM (1 child)
other outside noise was last reduced and drivers failed to hear motorcycles
(Score: 2) by FatPhil on Wednesday November 13 2019, @12:45AM
I wonder if the AI bods can come up with an adversarial anti-anti-noise signal that defeats anti-noise attempts?
Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves