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by pims 1940 days ago
I've been suffering from tinnitus and hyperacusis for over three years. It led me to read a bit about hearing in general, and more and more studies show that most of the hearing loss we experience as we grow old is nothing natural but the result of the years of abuse we inflict upon our ears in our everyday lives ( https://www.jneurosci.org/content/40/33/6357 ). Even though my situation is specific, this article does not surprise me at all. I believe it has also been proven that loud noise reduces brain activity levels and cognitive performance.

I wasn't a fan of loud noises before my hyperacusis appeared, but now I've grown to absolutely despise motorcycle drivers who seem to feel obligated to make as much noise as possible in dense areas, accelerating as strong as they can regardless of common sense and speed limits. I won't even mention those doing this late at night throughout the city, not worried about waking up hundreds if not thousands of people.

I've moved out of a big city to be less exposed to traffic noise, unfortunately the area I'm now in is coastal and often has said drivers "enjoying" the coastline in their own unique way as soon as the sun is out.

I hope that this major public health issue will be tackled in the upcoming years, and that strong limitations on engine noise will be put in place, enforced by sound radars, heavy fines, and incentives to go electric.

4 comments

Some European countries like Austria have been doing this for many years. Roadside noise level measurements with harsh penalties. If you exceed the limits, they take the licence plate off.
Lucky them, here in France we're probably far from ever seeing such laws given the high percentage of bikers who simply don't care about making harmful levels of noise even right next to small kids.

I've considered reaching out to my neighborhood council about it, but I'll probably have moved again due to motorcycles before it goes up to the city/county/department/region...

Well, there actually are laws in France regarding noise. I don't remember what the numbers are, but technically most of the loud pipes on motorcycles are illegal. The registration has a line for the noise generated by the bike under certain conditions, and if you modify the bike (usually the muffler) such that the noise is above that level, your bike is illegal.

The issue, of course, is that there's no enforcement.

Maybe a year or so ago there was some campaign about this with police stopping people in Paris who were too loud. Everyone was talking about how the noise is unacceptable and how there would be a crackdown. This lasted a whole 2 days until the cameras tired, and all of a sudden it became acceptable again, and has been ever since.

Interesting, I had a look and it seems like it should be limited to 80dB for the biggest motorcycles. But that's when measuring in specific conditions in a lab, so there's a more "practical" (ahem) limit that depends on the model but is always at harmful levels (>80dB) and is measured when the engine is only at 50% of its maximum power.

So we have a badly designed law which is, as you mentioned, not even enforced. Sounds like France indeed.

I've looked a bit into it, and it's actually not that bad. [0] is a French source (not government affiliated).

Basically, as you said, there's the "official" test, which is dynamic (the bike has to be moving) and involved enough to not be practical for everyday controls by police.

But there's also a "static" test, for the purpose of facilitating police controls. The meat of it, from the article, is below. The parameters for this test are given on the registration slip of the vehicle (expected sound level / RPM).

---

The sound should be measured with a microphone placed as follows:

* At an angle of 45º to the vehicle's longitudinal axis

* At 50 cm from the muffler

* At the height of the highest point of the muffler and at least at 20 cm from the ground

* If the bike has mufflers on both sides, testing should be done with two microphones, one on each side

Testing conditions:

* Testing must be done at 50% of the nominal power RPM [not max RPM]

* If max RPM is 5000 or less, testing must be done at 75 % of nominal power RPM

* There must be at least 3m of free space around all sides of the vehicle

---

This level is higher than the one in the official test, but it doesn't really mean anything. The official test is done wide open throttle starting at 50 km/h, so it should reflect fairly well the actual noise produced when riding around town. The static test isn't involved in the homologation of the vehicle, it's just there for the police to be able to check that the vehicle hasn't been tampered with.

[0] https://ffmc.asso.fr/bruit-des-motos-comment-le-mesure

Thanks for clarifying. Given the considerable amount of motorcycles that are way too loud, it still feels like the noise limits for homologation are way too high. Or if that many bikes have been tampered with, it means there really is absolutely no enforcement whatsoever. Either way it sucks :/
I lived in Austria for half a year and never saw this being enforced. In fact, I was awoken daily by 2-cycle dirt bikes echoing through the streets. Austrians never seemed the type to follow laws all that well and I doubt they're enforced as much as you think they are. There's a general disdain for anything authoritarian there (for good reason).
OMFG Los Angeles neeeeeds this. 'Course we need the more stringent European licensing requirements too, but....I can make do without that.
Ive been wondering about my hearing issues lately, too. I have occasional "bursts" of tinnitus, i assume from my hypertension, but ive also been looking for answers regarding a weirder phenomenon ive started noticing in recent years. Hyperacusis seems to be the closest word for it, but for me it manifests as isolated spurious noises seeming louder than they are. It sounds like someone turned up the gain on my ears for a split second before the sound occured, and then right after, returned it to its normal volume envelope. Its startling and unsettling, but i dont have the "conversational voices are too loud" type of symptom. Anything similar for you?
If by bursts of tinnitus you mean a high pitched noise for a few seconds (sometimes longer), these are rather normal and very common, not much to worry about I believe.

Is the sensitivity you describe specific to certain sounds? If so, that could be some kind of hyperacusis as it can be very focused on certain frequencies. Mine is mild/moderate so I can tolerate a loud discussion for a while, but stuff like broken glass is simply unbearable, it feels like the glass is breaking inside my ears and usually makes them painful for a couple of hours.

Just a PSA. I thought I had tinnitus a while back because that’s the first search engine hit on “ringing in ears”, but it turns out it was just ear wax touching my eardrum. If it happens to anyone else, it may be easy to fix.
Yep just get your ears properly checked by a good ENT when it first appears. There can be numerous causes and some of them can and should be treated early. Also do not panic, in many cases it will go away.

In some other cases like mine it's unfortunately not as likely to disappear, so protect your ears and wear earplugs at concerts or anywhere noise is at uncomfortable levels.

> hyperacusis

TIL. Thanks.