Hello and welcome to the forum.
What version of IE do you have? What service pack do you have installed?
Does this happen on all websites? IF you haven't tried many sites try one like Youtube to see if you get sound.
First thing to try is to Open IE click on Tools => Internet Options => Click on the tab Advance => scroll down until you find Multimedia tick the box Play Sounds on Webpages => Apply => Ok
What version of IE do you have? What service pack do you have installed?
Does this happen on all websites? IF you haven't tried many sites try one like Youtube to see if you get sound.
First thing to try is to Open IE click on Tools => Internet Options => Click on the tab Advance => scroll down until you find Multimedia tick the box Play Sounds on Webpages => Apply => Ok