Sound distortion when playing videos in full screen (when in the video speak with the voice like a movie) (Adobe Flash Player)

Hello, ladies and gentlemen.

   The problem is, on the computer operating system Windows 7 x32 bit, updated video codecs, browser Opera the latest version installed Adobe flash player for chrome 24 latest version. The problem is that when I try to play a video in browser in the online view without unfolding it in full screen, the video works and shows and the sound is fine, if you expand to full screen video in browser whether is Opera or Mozila or Chrome, expanding the video to full screen and begins to speak in a voice the sound starts to distort a little and the video freezes if it was just music without words, some kind of distortion no sound, please tell me what could be the problem, we literally did everything still the problem remained. To check we took the IE browser and check information unfortunately the problem was not observed. Maybe it's a bug in Adobe flash player? thanks for your heed, hoping for information.

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