lost sound for a channel of tv media Center in vista

Hello world
Have had my cable is split into a TV and my computer.  My computer using Vista and is updated.  This Setup has worked well over the years.  A few weeks ago a tv in media center channel lost his.  All other channels are fine.  My TV has sound for all channels.  I replaced the splitter and still the same problem.  I think media center units must be reloaded in my computer.  This problem can be corrected by removing and reloaded in my computer?  Or is there another place I have difficulty?
Thank you

Hi 01starsky,

Cause of this problem

This problem occurs because the Media Center always tries to play an (Arc consistency #3 algorithm) AC3 (Dolby Digital 5.1) audio stream that is present in a show. The AC3 audio stream offers the best quality audio experience. Some stations broadcast the required primary stereo stream and the AC3 audio stream option. If Media Center detects that an AC3 stream is available in the broadcast, Media Center selects that available stream. Some broadcasters may broadcast empty or muted AC3 stream. So, if a broadcast contains an AC3 stream, but no audio is present, Media Center has no sound for that specific channel.

Currently, Windows Vista doesn't have an option to force Media Center to use the main audio stream when a muted AC3 stream is present. However, you can contact the broadcaster and report the muted AC3 stream.

Reference:

When you use Media Center to watch live TV on a Windows Vista-based computer, you can't always hear the sound

http://support.Microsoft.com/kb/929515

Thank you, and in what concerns:

Ajay K

Microsoft Answers Support Engineer

Visit our Microsoft answers feedback Forum and let us know what you think.

Tags: Windows

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