Flash player 11.3 No sound (no sonido sin audio) Solución
No audio on Vista or Windows 7
For users on Windows Vista or Windows 7 that receive no sound at all, please try the following, temporary, steps.
Press the Windows key + R.
Type control mmsys.cpl and press enter.
Click on the active sound device in Playback tab. (Should be your 5.1 card)
Click on Properties button.
In the resulting dialog, go to Advanced tab.
In the Default Format section, select 16bit 44100 Hz (CD Quality). Click on apply and OK.
Go to IE/Firefox and play any Flash movie.
Let us know what the result is.
Also, play around with the Default format combo box in Speaker properties and let us know what works and what doesn’t.
No audio or distorted audio on Windows XP
For users on XP that are encountering no sound, we believe we have identified the cause and are continuing to investigate. In the mean time, please revert back to the previous version of Flash Player until this can be resolved.