new mbp with a popping noise

Discussion in 'MacBook Pro' started by johnellisdm, Mar 20, 2008.

  1. johnellisdm macrumors member

    Feb 21, 2007
    i searched all the threads, but i couldn't find this exact problem (some related ones).

    i'm finding that even with my sound turned all the way off, i can occationally hear a popping noise from the speaker. it is kinda like the sound you hear when your ears clear from altitude.

    i get it with lots of things. one thing i've noticed is when a growl notification pops up.

    it really is quite faint... it has to be very quiet in the room to hear, but it is definitely there.

    any ideas? similar experiences?
  2. Rokusaburo macrumors member


    Sep 30, 2006
    Melbourne, Australia
    yeah, i've been getting this as well. quite strange.
  3. ucsdmac macrumors 6502


    Jan 28, 2008
    me too.
  4. duncan75 macrumors newbie

    Sep 4, 2008
    Has anyone else been experiencing this? I just bought a new mbp (late 2008) and get an occasional popping noise from my speakers. It doesn't really seem to correlate with anything I'm doing within the OS and just happens every now and then for no apparent reason. I'll get one audible "pop" and that's it. No other sound distortions.
  5. keysersoze macrumors 68000


    Jan 6, 2004
    Does it only happen when the power cord is plugged in? Only on battery? Either/both?
  6. duncan75 macrumors newbie

    Sep 4, 2008
    I'll do some experiments and get back on the results. I've done some preliminary searching on different forums and it seems to be a not uncommon experience among some other mbp users. Specifically, some of the penryn mbp users mention it. It's a sporadic single electric pop that comes from the speakers. It will not happen when music or audio is actively playing through the speakers, only when they are silent. It doesn't happen very often. I had another one happen just now after I installed adium and it alerted me that I needed to install growl for notifications. The pop happened exactly as the notification popped up but I do have it happen when I'm not doing anything. As it stands, my mbp is plugged in, with external speakers connected (klipsch) and also connected to a 24" external lcd.
  7. stooley macrumors regular

    Apr 2, 2008
    Confirmed here too. Last time I heard it was with the power plugged in and I moved something to the trash can...sound completely off as well.
  8. KSpider macrumors regular

    Mar 29, 2006
    San Diego, CA
    Interesting, ill try to see if i can hear anything tonight
  9. duncan75 macrumors newbie

    Sep 4, 2008
    Stooley, do you happen to have perian or any codec packages installed?
  10. antmo macrumors member

    Feb 20, 2008
    I get this too (late 2008 mbp 2.53ghz)... I'm almost certain it is from the sound chip initializing after it has gone into low power mode after some period of no audio. It never happens when there is active audio playing and I haven't ever noticed it happening when opening a video or starting audio playback... it only seems to happen when there is a sound effect of some sort that plays after some period of audio inactivity... I'll bet it can be fixed in the software driver/software audio subsystem...

  11. ant7783 macrumors member

    Oct 29, 2007
    I get this also on my new MBP 2.4 and it seems only to happen as most of you said when the speakers seem to "turn on" but when the sound is on, it is completely fine
  12. rdrr macrumors 6502a


    Nov 20, 2003
    I have had this with two 17" MBP 2.6 GHz. I brought it down to the Genius Bar, and they said it was the speakers waking from sleep to make a noise. It pops just before it makes a noise.

    I have gotten use to it after 6 months of use.
  13. kockgunner macrumors 68000


    Sep 24, 2007
    Vancouver, Canada
    this has been a problem with the older macbook pros too. my penryn started making the noises after 10.5.3 or something. it's super annoying. it pops when the computer is about to make a sound even when the speakers are off. it's as if the sound card is going into energy saving mode and has to turn on and off on the fly.

    a few links:

    it's too bad apple still hasn't fixed the issue. the noise makes my macbook pro sound all cheap.
  14. jjahshik32 macrumors 603

    Sep 4, 2006
    Ahh, I guess the new mbp hasnt fixed the audio popping issue.

    My 2.4ghz white macbook occassionally does that, when the audio is idle for about 30 seconds to a minutes it makes the slight pop noise.
  15. consumedsoul macrumors regular

    Mar 14, 2008
  16. v66jack macrumors 6502a


    May 20, 2009
    London, UK
    Is there no a fix??

    My MB is only a week old now and this popping noise is starting to really bug me!! Is there not a way of stopping the sound card going to sleep or something! This is my first mac so i'm not really sure if this sort of thing is possible!:D
  17. n0d3 macrumors regular

    Oct 12, 2006
    I just returned mine, hopefully the replacement is better.
  18. magamo macrumors 6502

    Apr 6, 2009
    If I remember correctly, it's the noise produced when your laptop's sound system goes to sleep or awakes from sleep mode. No sounds for around 30 seconds or any sound when the sound system is idle will trigger the pop noise. It's more noticeable when you're using headphones.

    I think I have read a thread or two about it on this forum, so MRoogle may give you more info about it.
  19. n0d3 macrumors regular

    Oct 12, 2006
    But strange that the speakers pop after the audio system sleep. My older Yonah MBP doesn't suffer from the same problem, perhaps a power related/speaker issue also.

    You can clearly hear the pop after the chime at startup and shutdown when the speakers power up/down.
  20. tarasis macrumors 6502a


    Oct 26, 2007
    Here, there and everywhere
    I get it too on my fresh 17" MBP, particularly noticeable if you have the audio on mute. Its definitely like its turning on the audio system, but surprised that its hasn't been cured after all this time.
  21. sixmac macrumors member

    Mar 28, 2008
    no popping for me, but i just went to get up off the couch and picked it up with one hand over the CD slot with the lid open and it made a huge crack noise while carrying it, noise came from the internals or maybe the case.
  22. celtikmind macrumors 6502

    Feb 9, 2009
    I have this as well.

    Although I don't see it as a problem (which might be due to mine having more severe problems like overheating et al.) it's sadly a depreciation in Apple build quality, yes.

    We can just blame Apple, their QC/QA and their overzealous attention to gadgetmaking (iPhone).

    As for this to be fixed, never. Some people hear it, some don't. Take it to Apple if you're not happy I guess and let them hear of it.
  23. procyonx86 macrumors member

    Nov 25, 2008
  24. alphaod macrumors Core


    Feb 9, 2008
    I think the problem is related to the shorting out on the speakers, this would make it a hardware issue.
  25. Lloyd Christmas macrumors regular

    May 12, 2009
    As a few other posters have stated, the sound card does turn off when not in use for a certain period of time. The same thing was happening with my mbp and the genius at the store told that the sound card turns off to save power or something along those lines. No way of turning it off just have to deal with it. maybe an update will fix this one day.

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