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Groups > comp.sys.mac.misc > #3220 > unrolled thread
| Started by | Mathias Kőrber <mathias@koerber.org> |
|---|---|
| First post | 2013-10-19 07:12 +0800 |
| Last post | 2013-10-22 02:55 +0200 |
| Articles | 8 — 5 participants |
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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
| From | Mathias Kőrber <mathias@koerber.org> |
|---|---|
| Date | 2013-10-19 07:12 +0800 |
| Subject | unidentified alert sound: 4 very low 'sighs'? |
| Message-ID | <bcdtjeFhntdU1@mid.individual.net> |
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. I have looked at all the sound configurations I can find and played them all but it's not listed there. (system, growl etc) Has anyone heard this before? Is there maybe a database somewhere that contains sounds not only to listen to but also by some form of description to that one have a change of identifying such a sound one has no recording or such of? thanks
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| From | Mathias Kőrber <mathias@koerber.org> |
|---|---|
| Date | 2013-10-19 07:15 +0800 |
| Message-ID | <bcdtovFhntdU2@mid.individual.net> |
| In reply to | #3220 |
Mathias Kőrber wrote: > A number of times I have now heard my macbook pro (MacBookPro9,2) > make this sound without being able to identify Some more info: Mountain Lion 10.8.5, but this has happened on 10.8.2 etc also. No notifications are seen in the notification center or such. Looking at the Console (usually several minutes after the fact, as this sound is not predictable, nor do i have exact times when it happens) did not help. Lots of messages, but it is unclear which might be related to this sound.
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| From | Alan Ralph <alan.ralph@gmail.com> |
|---|---|
| Date | 2013-10-19 12:22 +0100 |
| Message-ID | <l3tq1v$ce8$1@dont-email.me> |
| In reply to | #3220 |
On 19/10/2013 00:12, Mathias Kőrber wrote: > A number of times I have now heard my macbook pro (MacBookPro9,2) > make this sound without being able to identify > - what causes it > - what it means > > The sound is a set of 4 very low (pitch) sighs, each starting > low, then getting lower in the space of about .8 seconds. > They start about 1 second apart. > > The signal does not repeat usually, so it is hard/impossible > to capture it. It could be that the sound is being made by one of the fans in the MBP - that would be my suspicion. Alan
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| From | Your Name <YourName@YourISP.com> |
|---|---|
| Date | 2013-10-20 09:51 +1300 |
| Message-ID | <201020130951539633%YourName@YourISP.com> |
| In reply to | #3222 |
In article <l3tq1v$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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| From | Mathias Kőrber <mathias@koerber.org> |
|---|---|
| Date | 2013-10-21 20:42 +0800 |
| Message-ID | <bckloqFu6isU1@mid.individual.net> |
| In reply to | #3224 |
>> 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. Possible, but it souds too regular (4 exactly spaced sounds, always 4) and they sound generated, not something that hardware makes by just operating (even if faultily)
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| From | Chris Ridd <chrisridd@mac.com> |
|---|---|
| Date | 2013-10-21 18:06 +0100 |
| Message-ID | <l43mvb$30q$1@dont-email.me> |
| In reply to | #3227 |
On 2013-10-21 12:42:01 +0000, Mathias Kőrber said: >>> >>> 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. > > Possible, but it souds too regular (4 exactly spaced sounds, always 4) > > and they sound generated, not something that hardware makes by just > operating (even if faultily) Plug in some headphones and see if the noise goes away? -- Chris
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| From | Mathias Kőrber <mathias@koerber.org> |
|---|---|
| Date | 2013-10-22 09:12 +0800 |
| Message-ID | <bcm1o4F8sm2U1@mid.individual.net> |
| In reply to | #3228 |
Chris Ridd wrote: > Plug in some headphones and see if the noise goes away? The noise is *very* sporadic, so it's gone away (most of the time) When it happens is unpredictable but it sounds ominous enough to make me wonder what failure may be causing it. Hence my quest to identify it. It's not an issue of a constant noise.
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| From | ErikRS <mac-dane@is.invalid> |
|---|---|
| Date | 2013-10-22 02:55 +0200 |
| Message-ID | <l44iek$5vl$1@solani.org> |
| In reply to | #3227 |
Mathias Kőrber wrote: >>> 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. > > Possible, but it souds too regular (4 exactly spaced sounds, always 4) > > and they sound generated, not something that hardware makes by just > operating (even if faultily) I've sometimes noticed something similar on my PowerBook G4 when working on the battery only and few times right after the power supply has been attached. And as you say - 4 clicks/sounds or whatever one should call it... To me it sounds like a very low 'sssh-sssh'. I think it may be a sort of a relay that is switching on and off. I've located the sound to come somewhere between the inner end of the battery and the back end of the DVD drive. Cheers, Erik Richard -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Erik Richard Sørensen, Member of ADC, <mac-daneRE@MOVEstofanet.dk> NisusWriter - The Future In Multilingual Text Processing - www.nisus.com Openoffice.org - The Modern Productivity Solution - www.openoffice.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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