US scientists realise “Motorcycle noise can cause hearing threat”

[Mongoose]

Ouch.

I say again, OUCH.

I've had a couple of times when people thought that letting off a 12-gauge or .308 inches away from my head (pointing elsewhere, obviously) seemed like a good idea, but that just resulted in me saying "eh?" to everything for the next hour or so, Black Hawk Down style. No blood, and I can still hear CRT capacitor whine quite clearly.

Ahhh, tis a whole range of noises us humans hear, being deaf to one does not always stop you hearing the other. Can relate to the muzzle blast inches away from the head, maybe that why I can still hear ringing untill the back ground noise level gets high enough

[jrandom]

Ahhh, tis a whole range of noises us humans hear, being deaf to one does not always stop you hearing the other. Can relate to the muzzle blast inches away from the head, maybe that why I can still hear ringing untill the back ground noise level gets high enough

Hmmm. I always thought HF was the first thing to go, and the main cause of not being able to differentiate sources as described by celticno6, but I guess I wouldn't really know. :spudwhat:

I'm suspect I'm lucky to have escaped permanent tinnitus so far, what with the teenage years spent listening to Floyd and Zep through headphones (this headphone amp goes to 11, man!) the recreational gunnery and, most recently, the daily motorcycling (without earplugs).

I should probably start taking better care.

[Mongoose]

I should probably start taking better care.

Yup, because once you notice the symtoms its way to late, ears dont repair themselves to well

[pete376403]

Yup, because once you notice the symtoms its way to late, ears dont repair themselves to well

If at all. As one who has suffered with mild -> severe -> profound deafness caused by a combination of measles and antibiotics, plus otosclerosis, it annoys me so much to observe how people expose their hearing to damage.
I can be fixed (sort of), the implant will be done in November but it's expensive - $48,000 (one side only) Makes ear plugs at $4 or so a set look pretty cheap.

[NordieBoy]

'helmets only cut noise by 3dB?'

YEAH RIGHT! Maybe on an open face lid but its blimmin obvious to me that my full face KBC (not that flash) drops the noise by at least 7-10dbA (3dbA reduction is 'just noticeable', 10dBA reduction is half the volume)

Dropping by 3dB is dropping by half.

[jrandom]

Dropping by 3dB is dropping by half.

My fingers twitched briefly with this upon reading CK's post, but I restrained my pedantry; I figure his point is that while the dB numbers measure the intensity of a compression wave on a logarithmic scale, our psychoacoustic perception (how our ears interpret loudness) tends to be that something with half the energy is 'a little softer', something with 10% of the energy is 'half as loud', etc.

[Blakamin]

My fingers twitched briefly with this upon reading CK's post, but I restrained my pedantry; I figure his point is that while the dB numbers measure the intensity of a compression wave on a logarithmic scale, our psychoacoustic perception (how our ears interpret loudness) tends to be that something with half the energy is 'a little softer', something with 10% of the energy is 'half as loud', etc.

Dont make me get out my "School of Audio Engineering" books coz i've forgotten where they are

[Coldkiwi]

My fingers twitched briefly with this upon reading CK's post, but I restrained my pedantry; I figure his point is that while the dB numbers measure the intensity of a compression wave on a logarithmic scale, our psychoacoustic perception (how our ears interpret loudness) tends to be that something with half the energy is 'a little softer', something with 10% of the energy is 'half as loud', etc.

thank you for your kindness J!

I didn't realise there were audiofiles lurking. If I had I might've said something more along the lines of
'To be precise, a 3dB(A) (relative to 10^-12 Pa) drop in sound PRESSURE level is generally (based on an absolute mountain of audiology research over many years) the smallest difference a human ear/brain can percieve between two identical spectrum shapes. In contrast, a 10db(A) decrease in sound pressure level represents a halving of perceived loudness.
Note that this is FUNDAMENTALLY different to the ratios used for expressions relating to sound POWER. In the case of sound POWER, a 3dB(A) drop represents a halving of the amount of ENERGY'.

but then again

[jrandom]

3dB(A) (relative to 10^-12 Pa) drop in sound PRESSURE level wibble blob wobble eddificated book-larnin' talk

So... did I get it right, then?

[jrandom]

I didn't realise there were audiofiles lurking.

My headphone amp goes to 11 because I *built* the sucker.

[Coldkiwi]

I can be fixed (sort of), the implant will be done in November but it's expensive - $48,000 (one side only) Makes ear plugs at $4 or so a set look pretty cheap.

exactly. It seems ridiculous not to look after ones hearing when all the evidence points to wind noise being a problem and the solution to reducing the noise is so, so cheap. Good quality foam ear plugs can be bought in bulk for well under a $1 a pair as well

[Coldkiwi]

So... did I get it right, then?

yep, that was the essence of it. I just felt the need to jump on these acoustic misnomers before they got out of hand (lord knows I deal with enough people in the building industry (I'm an acoustic engineer for those of you wondering) that have only a little bit of acoustic knowledge, and generally its bass-ackwards and is a right pain in the proverbial to straighten out!)

[jrandom]

I'm an acoustic engineer

What would it take to build a kid's bedroom with 100dB of effective noise damping between it and the outside hallway?

I'm deadly serious, by the way...

[Mongoose]

Did ya know its deaf awareness week this week?


I SAID DO YOU KNOW ITS DEAF AWARENESS WEEK THIS WEEK

[toads]

Eh??? What you say???, seriously I have noticed my husband has a bit of industrial deafness and I have had a hearing problem most of my life, hearing is very easily lost and not easily regained, earplugs are cheap and effective.