skip silence from start/ end of playback file

[ipuiuna]

I want to detect and skip the silence from start of file (mp3/ogg/wma) and start play position from the beginning of sound and stop it from end of sound not the file.
There's way?

My api is delphi.

a loot of thanks.

[engineeer]

http://www.un4seen.com/YaBB.cgi?board=bass&action=display&num=1030268100

[ipuiuna]

thanks