I have an Inspiron 15 N5010, with Windows7 Home Premium (svc pack 1). The Internet Explorer 11 browser seemed unstable so at one time I had installed Chrome. A few weeks ago it seems I lost sound in both web browsers completely, but I still have system sounds, and itunes audio as well. I have since uninstalled Chrome and am just trying to stick with one browser thinking that maybe that was the issue.
I ran a DirectX Diagnostic, which suggested that I did not have a sound card. However, in my sound mixer the IDT High Definition Audio CODEC appeared. I ran tests and could always hear the sound.
I completely uninstalled the driver and deleted all of the old files, and reinstalled/updated it. When I ran another Direct X it did show a sound card. But, unfortunately I still don't have any sound in Internet Explorer.
I have confirmed all the sliders are up, nothing is muted, and I have checked that all of the internet advanced options allow web sounds, etc. All scans, disk checks, system checks reflect that the device is functional. And it seems to be- because I hear the start up sounds, etc.
I don't use the Windows Media Player, but I did try that, and it is non-operational as well saying there is an error with the sound.
Something in that soundcard seems to be having issues, but it has not completely failed.
I have been struggling with this for days. Any other suggestions to try to get the web browser sound functional again?? Thanks!