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Mercedes-Benz pre-safe sound

mercedesbenzofnatick.com

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Re: Mercedes-Benz pre-safe sound

#81

Post by germinalphrase »

chongli wrote: post #33
ChickeNES wrote: post #21

Earlier quoted context omitted.

There was a blogpost I read a few years back written by someone who damaged their hearing after dropping a porcelain toilet lid. They actually ran some back-of-the-envelope calculations to estimate the decibel level, I recall it being shockingly high.

Porcelain toilet lids and the metal plates on weightlifting machines are among the most dangerous common objects when it comes to hearing damage. I've heard of cases where the plates on the machine were stuck together with grease and the user had selected a much lighter weight than usual. A number of plates below the linchpin were all the way up by the bonds of the grease before slipping and falling back down. The me…

I’m a small guy who used to frequent a bodybuilder focused gym. I can attest to the truth of this.

Re: Mercedes-Benz pre-safe sound

#82

Post by misterdoubt »

wycy wrote: post #78
raldi wrote: post #57

I wish fire alarms did this for half a second before blasting your tympanic membrane with an ear-splitting noise. Residential ones are bad enough, but the ones in offices are the worst.

That office building alarms are worse is all the more annoying since they theoretically shouldn't need to wake people from sleep.

Well, they do need to overcome my noise-cancelled high-volume drown-out-coworkers music...

Re: Mercedes-Benz pre-safe sound

#83

Post by mehrdadn »

Cerium wrote: post #52
coke12 wrote: post #31

Earlier quoted context omitted.

There was a pretty good HN comment thread about it: https://news.ycombinator.com/item?id=16723099 From the linked thread: """ 5. The stupid toilet bowl lid only fell about 8 inches. How could it damage my hearing so badly? I looked up the speed of sound in ceramic, divided by the length of the toilet bowl lid (and divided by 2 since the fundamental vibration is a half wavelength). This predicts 3.5 kHz. 6. This frequ…

Be careful dropping glass bottles into recycling bins too; they pose nearly the same problem - they don't usually shatter and the sound escapes the bin upwards towards you.

Why isn't this taught to everyone at a young age? I had no idea this could happen and it kind of terrifies me that I can lose my hearing so easily like this without having any clue.

Re: Mercedes-Benz pre-safe sound

#84

Post by adinisom »

whenchamenia wrote: post #63
TheSpiceIsLife wrote: post #53

Earlier quoted context omitted.

I’ve taken up wearing earplugs while driving. I also work in a noisy environment, and it occurs to me that the road and engine and wind noise is probably loud enough to have a negative impact on hearing over time. Less so in newer cars, but both mine are over 10yo. Also, in the event of a collision I’m protected.

At least in most of the usa, wearing earplugs (or earbuds, headphones, etc) while operating a car, is illegal. Please check with your local PD to be safe. You may just be putting yourself and others at higher risk by attinuating your situational awareness.

Proper situational awareness while driving is a visual task. As people age, they begin to lose hearing and ability to localize sounds due to age and noise exposure. Leaning on hearing for safety becomes a liability.

Re: Mercedes-Benz pre-safe sound

#85

Post by userbinator »

cr0sh wrote: post #47
anyfoo wrote: post #41

Earlier quoted context omitted.

Interesting. Not having looked at any data, I’m now wondering why most taxis in Germany are, and have been for a long time, mostly Mercedes? (Commonly their E class.) Are they just cheaper to buy for that purpose or what’s the reason?

I've heard that German luxury cars (what we consider them here in the USA) are more like what we think of Fords here; so common and normal, considered affordable. Or maybe just not "high end" due to being common? Again, though, only heard that - nothing to back it up. It also may be that because Mercedes and BMWs are "local brand" vehicles, there are more of them, and more mechanics out there able to service them? Wh…

It also may be that because Mercedes and BMWs are "local brand" vehicles, there are more of them, and more mechanics out there able to service them? Whereas (to them) foreign cars like American vehicles you have to take to special American automobile repair places (like we have European auto repair places here that specialize in those makes/models)?

That's been true for taxis in the US for a long time --- which are usually full-size Chevrolets and Fords. They're also much roomier and thus give a more comfortable ride than the average import econobox, with extra capacity for luggage.

Re: Mercedes-Benz pre-safe sound

#86

Post by bagacrap »

hirundo wrote: post #71

I'm guessing an engineer named it the German equivalent of "pre-crash" sound, then someone in marketing decided that "pre-safe" sounds better. It may be better to call it "foreplay" sound, since if you ever hear it you're probably screwed.

The name grates on both my ears and my eyes (due to the awkward shouty capitalization).

Re: Mercedes-Benz pre-safe sound

#87

Post by JadeNB »

chongli wrote: post #33
ChickeNES wrote: post #21

Earlier quoted context omitted.

There was a blogpost I read a few years back written by someone who damaged their hearing after dropping a porcelain toilet lid. They actually ran some back-of-the-envelope calculations to estimate the decibel level, I recall it being shockingly high.

Porcelain toilet lids and the metal plates on weightlifting machines are among the most dangerous common objects when it comes to hearing damage. I've heard of cases where the plates on the machine were stuck together with grease and the user had selected a much lighter weight than usual. A number of plates below the linchpin were all the way up by the bonds of the grease before slipping and falling back down. The me…

fragsworth mentions being the victim of exactly this issue with weightlifting machines (https://news.ycombinator.com/item?id=16723769) in the post linked by coke12 (https://news.ycombinator.com/item?id=20700966).

Re: Mercedes-Benz pre-safe sound

#88

Post by chongli »

JadeNB wrote: post #87
chongli wrote: post #33

Earlier quoted context omitted.

Porcelain toilet lids and the metal plates on weightlifting machines are among the most dangerous common objects when it comes to hearing damage. I've heard of cases where the plates on the machine were stuck together with grease and the user had selected a much lighter weight than usual. A number of plates below the linchpin were all the way up by the bonds of the grease before slipping and falling back down. The me…

fragsworth mentions being the victim of exactly this issue with weightlifting machines ( https://news.ycombinator.com/item?id=16723769 ) in the post linked by coke12 ( https://news.ycombinator.com/item?id=20700966 ).

Thanks for linking this. This is what I was referring to, I had forgotten where I had heard of it happening.

Re: Mercedes-Benz pre-safe sound

#89

Post by dogsgobork »

Cerium wrote: post #52
coke12 wrote: post #31

Earlier quoted context omitted.

There was a pretty good HN comment thread about it: https://news.ycombinator.com/item?id=16723099 From the linked thread: """ 5. The stupid toilet bowl lid only fell about 8 inches. How could it damage my hearing so badly? I looked up the speed of sound in ceramic, divided by the length of the toilet bowl lid (and divided by 2 since the fundamental vibration is a half wavelength). This predicts 3.5 kHz. 6. This frequ…

Be careful dropping glass bottles into recycling bins too; they pose nearly the same problem - they don't usually shatter and the sound escapes the bin upwards towards you.

I've been surprised at how loud emptying a bucket of aluminum cans into an empty bin can be, the half open lid also reflects the sound back toward you.

Re: Mercedes-Benz pre-safe sound

#90

Post by koolba »

tempestn wrote: post #61
raldi wrote: post #57

I wish fire alarms did this for half a second before blasting your tympanic membrane with an ear-splitting noise. Residential ones are bad enough, but the ones in offices are the worst.

That's a good idea! I bet if someone were to develop a residential smoke detector that did that it would sell well. (Especially if it had other compelling features like a 10-year battery.)

I’d be happy with one that gives battery alerts at less than maximum volume.
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