Have you played this video clip in VLC Media Player to ensure it actually has sound?
What model of camcorder is this video coming from? How did you get the video from the camcorder to your computer?
What operating system are you using and which version of the program?
Do you have Quicktime 7 installed, per the program's system requirements?
Thank you for your answer and first of all excuse my bad english, and to give you more informations.
yes it's possible to play correctly the vidéo with VLC.
I recorded a TV film on an external HD with a FujiOnkyo TNT adapter.
Then i imported the ts file from the HD plugged through USB on my PC.
The OS working on my PC is Windows 10.
Qick time isn't installed on my PC.
When using FreeMake Vidéo Converter i obtain a MP4 file correct with audio OK.
Because it is a system requirement, you MUST have Quicktime installed on your computer in order to edit many video formats.
You say your video was recorded with a FujiOnkyo TNT adapter. This is not camcorder video and I can't guarantee that the format of video it produces is compatible with Premiere Elements.
I have installed Quicktime and it didn't resolve the problem.
It seems that Adobe Premiere isn't compatible with ts files.
I regret i couldn't buy it any more.