You can cut the audio file into chorus form or just the part you like.
The mp3 cutter software can help you.The software can download from :
http://download.cnet.com/MP3-Cutter-and-Joiner/3000-2169_4-10226742.html
STEPS:
1>> click the "add" to insert the audio file that you want to edit.
2>>select the audio file
3>>click "play" to decide the part of audio need to cut,click the clock to insert the time need to cut
4>>click "stop"to stop the playing of files,and click"cut".
5>>the files that have been cut will save in the document.
