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Groups > comp.sys.mac.misc > #3224

Re: unidentified alert sound: 4 very low 'sighs'?

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In article <l3tq1v$ce8$1@dont-email.me>, Alan Ralph
<alan.ralph@gmail.com> wrote:
> On 19/10/2013 00:12, Mathias K‰ërber wrote:
> > A number of times I have now heard my macbook pro (MacBookPro9,2)
> > make this sound without being able to identify
> > - what causes it
> > - what it means
> >
> > The sound is a set of 4 very low (pitch) sighs, each starting
> > low, then getting lower in the space of about .8 seconds.
> > They start about 1 second apart.
> >
> > The signal does not repeat usually, so it is hard/impossible
> > to capture it.
> 
> It could be that the sound is being made by one of the fans in the MBP - 
> that would be my suspicion.

Fans, hard drive, CD ... sounds like it could be anything that spins
and is slowing down and speeding up again.

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unidentified alert sound: 4 very low 'sighs'? Mathias Kőrber <mathias@koerber.org> - 2013-10-19 07:12 +0800
  Re: unidentified alert sound: 4 very low 'sighs'? Mathias Kőrber <mathias@koerber.org> - 2013-10-19 07:15 +0800
  Re: unidentified alert sound: 4 very low 'sighs'? Alan Ralph <alan.ralph@gmail.com> - 2013-10-19 12:22 +0100
    Re: unidentified alert sound: 4 very low 'sighs'? Your Name <YourName@YourISP.com> - 2013-10-20 09:51 +1300
      Re: unidentified alert sound: 4 very low 'sighs'? Mathias Kőrber <mathias@koerber.org> - 2013-10-21 20:42 +0800
        Re: unidentified alert sound: 4 very low 'sighs'? Chris Ridd <chrisridd@mac.com> - 2013-10-21 18:06 +0100
          Re: unidentified alert sound: 4 very low 'sighs'? Mathias Kőrber <mathias@koerber.org> - 2013-10-22 09:12 +0800
        Re: unidentified alert sound: 4 very low 'sighs'? ErikRS <mac-dane@is.invalid> - 2013-10-22 02:55 +0200

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