"...No audio decoder found,playing video only.."

[ticketmaster]

Hi.When I'm trying to play a movie in Streaming Media Player.I hear no sound,and if you open tab "View",--> "Properties",you will see "...No audio decoder found,playing video only..." How to fix that ? Thank you.
Vladimir

[admin]

You need to install the audio decoder.
Media Server Config will show you the type of audio encoding for this file; many other tools can do that too.