30 seconds after sound ends, I hear snap or pop in the headphones

Discussion in 'MacBook Pro' started by OmegaRace, Jul 3, 2011.

  1. OmegaRace macrumors newbie

    Jun 12, 2011

    With my MBP 2010 15", 30 seconds after sound ends while using my headphones (either of two pairs), I hear a pop or snap in the headphones. This happens after playing Youtube, or after using mplayer in Terminal. I haven't used iTunes extensively so I can't say whether it happens with that app.

    This does not happen under Windows 7 at all, which I have installed in my Boot Camp partition.

    I did a little google searching and it seems people say this occurs because the OS turns off the sound card to save power, but does so in a very ungraceful way. Another person reported that they had no problem under Windows XP but did see this problem on multiple Mac laptops.

    One person back in 2008 said they found a utility that tricks the OS into thinking that the sound card is always playing audio, so the power-off and therefore pop or snap sound no longer occur, but that utility seems to be a PPC-only binary & anyway I hate running unofficial utilities.

    Does anybody here know if there is another way to fix this problem?

    I suppose I could write a Bash script that plays an all-zeroes wave file every 25 seconds, but that would be a kludge.

  2. randomrazr macrumors 65816

    Jan 1, 2011
    have u tried different headphoens to see the samething happens?
  3. Mobius 1 macrumors 6502

    Feb 11, 2011
  4. QuarterSwede macrumors G3


    Oct 1, 2005
    Colorado Springs, CO
    As far as I understand it, that's correct. The same thing happens on the iDevices.

    You say that you don't like unofficial utilities but then talk about writing a script?

    Anyway, there isn't an official solution.
  5. fibrizo macrumors 6502


    Jan 23, 2009
    This seems to happen when I use low impedance headphones. I've noticed it doesn't happen when I put an in line adapter that came with them for volume control and add impedance.
  6. OmegaRace thread starter macrumors newbie

    Jun 12, 2011
    Yes, I have two pairs of headphones & it happens with both.

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