Here's a free, open source mp3 file splitter you can use for segmenting audio you record.
Audiobook Cutter is an easy-to-use tool which splits large MP3 audiobook files into smaller ones without re-encoding. The split points are determined automatically based on silence detection. Because of this feature, long audiobook recordings can be cut into manageable albums with just a few clicks. The cutter is applicable for all kind of spoken content.
The main purpose of this MP3 splitter is to make audiobooks, analog recordings of speech or long podcasts more manageable in a user-friendly way: The split files can easily be used on mobile MP3 players because of their small-size and their duration allows smooth navigation through the book. Additionally the application is good accessible for visually impaired users. Audiobook Cutter supports screen readers and screen magnifiers...
from http://www.all4you.d...ewareWorld/links.php 
