Voice problem in media player

[subdued2u]

Hello guys ,, i have this prblem , some time when i play some music file it does not works or lets say the audio does not works, as over internet i tried to listen news the video was fine but the audio does not workd, part of my pc audio or volum works fine , any help please??

 

[Triple6]

Have you tried locating and installing new audio drivers? What sound card do you have and what version of Windows?