Reply
 
Thread Tools Display Modes
  #1   Report Post  
Posted to sci.electronics.components,rec.audio.pro
Zeldus
 
Posts: n/a
Default Electret and loud music

Hello,


Is it possible than loud music and sounds in night clubs could damage
electrets mics from mobile phone ? Is the limit of actual mobile phone
is near 95 db SPL ?

A friend of me complains her mobile mobile phone's mic doesn't work well
since she have been to night club a few weeks ago. (Her correspondants
can not hear here voice correctly at any time, in any condition, so, it
seems the phone mic may be damaged a litle) .

Thanks an advance for your help and informations,


Zeldus



  #2   Report Post  
Posted to sci.electronics.components,rec.audio.pro
Joseph Ashwood
 
Posts: n/a
Default Electret and loud music

"Zeldus" wrote in message
...
Is it possible than loud music and sounds in night clubs could damage
electrets mics from mobile phone ?


From a theoretical perspective it is entirely possible, a big enough
compression wave (sound is one type) can break just about anything.

Is the limit of actual mobile phone
is near 95 db SPL ?


Almost certainly not. What more likely happened (if it did indeed occur at
the same time) is that your friend got a wee bit too drunk and spilled her
150 proof "water" on it, ran into something, or heaven forbid dropped the
phone when she was hugging the sidewalk.
Joe


  #3   Report Post  
Posted to sci.electronics.components,rec.audio.pro
Richard Crowley
 
Posts: n/a
Default Electret and loud music

"Zeldus" wrote ...
Is it possible than loud music and sounds in night clubs could damage
electrets mics from mobile phone ? Is the limit of actual mobile phone
is near 95 db SPL ?

A friend of me complains her mobile mobile phone's mic doesn't work
well
since she have been to night club a few weeks ago. (Her correspondants
can not hear here voice correctly at any time, in any condition, so,
it
seems the phone mic may be damaged a litle) .

Thanks an advance for your help and informations,


Didn't get some kind of alcoholic beverege dripped into it, perhaps?
:-)

  #6   Report Post  
Posted to sci.electronics.components,rec.audio.pro
Anahata
 
Posts: n/a
Default Electret and loud music

Richard Crowley wrote:

A friend of me complains her mobile mobile phone's mic doesn't work well
since she have been to night club a few weeks ago.


Didn't get some kind of alcoholic beverege dripped into it, perhaps? :-)


If not that, at least very high humidity from being surrounded by sweaty
bodies? Electrets aren't best suited to humidity.

As for sound level, I'd have thought 95dB could easily be exceeded by
shouting in to the phone, and most mics don't suffer distortion (never
mind permanent damage) until much higher levels than that.

Anahata
  #8   Report Post  
Posted to sci.electronics.components,rec.audio.pro
Karl Engel
 
Posts: n/a
Default Electret and loud music

"A car with open windows and going 70 mph might generate LF sounds in the
130
dB range"

Is it fair to say that skydivers may well have severely compromised LF
hearing? It's been a long time, but from memory typical jumps give 1-1.5
mins freefall at a time, maybe 3-4 times a day, one or two days a week.
This mightn't be enough to do anything permanent - maybe cumulatively
though.

"Anahata" wrote in message
...
Richard Crowley wrote:

A friend of me complains her mobile mobile phone's mic doesn't work

well
since she have been to night club a few weeks ago.


Didn't get some kind of alcoholic beverege dripped into it, perhaps? :-)


If not that, at least very high humidity from being surrounded by sweaty
bodies? Electrets aren't best suited to humidity.

As for sound level, I'd have thought 95dB could easily be exceeded by
shouting in to the phone, and most mics don't suffer distortion (never
mind permanent damage) until much higher levels than that.

Anahata



  #9   Report Post  
Posted to sci.electronics.components,rec.audio.pro
Scott Dorsey
 
Posts: n/a
Default Electret and loud music

Karl Engel wrote:

Is it fair to say that skydivers may well have severely compromised LF
hearing? It's been a long time, but from memory typical jumps give 1-1.5
mins freefall at a time, maybe 3-4 times a day, one or two days a week.
This mightn't be enough to do anything permanent - maybe cumulatively
though.


HOPEFULLY they are wearing hearing protection, both ear plugs and the
proection integral to their helmet.

Note that spending an hour or so in the back of a C-130 is probably worse
for your hearing than the actual jump, but this isn't saying much.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."
  #11   Report Post  
Posted to sci.electronics.components,rec.audio.pro
anahata
 
Posts: n/a
Default Electret and loud music

Zeldus wrote:

And in a very loud sound condition (stronger than night clubs like
industrial tools or guns shoots, higher than 130 DB), is there a risk of
damage if the cell phone is switched off ?


If it's going to get damaged it makes no difference whether the phone is
switched on or off. The damage is purely mechanical.

--
Anahata
-+- http://www.treewind.co.uk
Home: 01638 720444 Mob: 07976 263827
Reply
Thread Tools
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT +1. The time now is 10:15 AM.

Powered by: vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 AudioBanter.com.
The comments are property of their posters.
 

About Us

"It's about Audio and hi-fi"