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Flash video and no sound on OSX

One of the newer technologies on the web are the flash video players used by Google Video and YouTube.

Every once in a while though, on Mac OS X it can happen that these Flash video players don’t have sound anymore.

It is pretty hard to figure out why, and the solution is quite random, but on macosxhints I found a comment mentioning that it could be a sampling rate problem:

  1. open /Applications/Utilities/Audio MIDI Setup
  2. check the properties for Built In Output.
  3. It might be set to 96KHz. Change it to 44KHz and audio in Flash will return immediately.

Now, I don’t know what software it is messing up that setting, but I am glad it can be fixed.

I am still wondering why the Flash player would care about MIDI settings. Obviously it’s no MIDI file that is being played as movie sound there.



This entry was posted on Wednesday, June 14th, 2006 at 10:26 pm and is filed under OSU OSL Crosspost, Tech Talk. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

126 Responses to “Flash video and no sound on OSX”

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  1. 126
    paul Says:
    June 26th, 2008 at 1:58 am

    Did not work. Tried everything, also we produce flash streaming media sites as a core business and as you would expect are let down by adobes and apples complete lack of support on this issue. It is obvious adobe have not changed their ways and neither have apple. Very very poor showing by both companies.

  2. 125
    Fred Says:
    April 30th, 2008 at 3:53 am

    You’re welcome, Lynda. Glad I could help.

  3. 124
    Lynda Says:
    April 30th, 2008 at 3:50 am

    THANK YOU SO VERY much for this!! I called apple and they could not tell me this. I had lost sound but only on some of my games nothing else??? THIS WAS the FIX!!! I’m thinkin one of my games is the culprit but at least now I can fix the problem thanks to you!!!!

  4. 123
    Katie Says:
    April 27th, 2008 at 3:42 pm

    On my system, it’s the Audacity software that causes the change. I’ve fixed it by going to Audio Midi Setup before, but this time it’s not fixing the problem.

  5. 122
    Johan Krüger-Haglert Says:
    April 13th, 2008 at 5:46 pm

    This happens for me every time I open up a lot of clips all the time. It must be that either or all of Adobe Flash (definitly), Safari (definitly but is it related?) and OS X (well? not likely maybe) suck.

  6. 121
    norman Says:
    March 28th, 2008 at 10:29 am

    This fix doesn’t work for me.
    Does anybody know any other solutions to exactly this problem???

    Thanks.

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