Low noise at converted movies

[halbtuer]

Hi,
i'am using the Jet Video converter, to convert my movie for my S9. Somethimes there are ac3 soundfiles in the divx, so they have to converted to mp3. After converting is finish, the noise of the movies is so quite that i have to put the volume till max (40) but it is still to quite so that i can't listen to it in puplic places like bus or train.
So now here is the question, are ther any setting to do before converting, did i need special codecs, or should i do setting in the codec?
Please let me kow if you have any ideas.

[halbtuer]

Hi,
thanks for your support:D but i figured out by my self. Today there is no use to convert the movies with ac3, because the S9 has no problem with playing ac3 sound. I'am realy suprised.

[Jimmi G]

Yes I was surprised too. But just for reference if anyone'd like, use Super (http://www.erightsoft.com/S6Kg1.html) to convert files.
Choose "[O]Other Opts" click "[√] Adjust The Encode Volume" and slide the meter anywhere from 0 dB to +50 dB.

I would like to recommend Super for anyone who converts files. It can convert any video/audio file into what-have-you I have ever seen. It is free, and the free version is the only version.