I dont know if this program is anygood but it looks like and okay program its called (free audio editor 2009)
here's the link:
http://www.free-audio-editor.com/

Ardour
http://ardour.org/

wave pad sound editor its has a free trial but once its over it still works

Please provide a link

hears some i found

Power Sound Editor – http://www.free-sound-editor.com/
Music Editor Free – http://www.music-editor.net/
Wavosaur – http://www.wavosaur.com/
Traverso DAW – http://www.traverso-daw.org/
Ardour – http://ardour.org/
Rosegarden – http://www.rosegardenmusic.com/
WavePad Sound Editor – http://www.nch.com.au/wavepad/index.html
Sound Engine – http://www.cycleof5th.com/products/soundengine/…
Expstudio Audio Editor – http://www.expstudio.com/audio-editor-free.html
DJ Audio Editor – http://www.program4pc.com/dj_editor.html
Eisenkraut – http://sourceforge.net/projects/eisenkraut
Ecawave – http://www.eca.cx/ecawave/
Jokosher – http://www.jokosher.org/
LMMS – http://lmms.sourceforge.net/
Wavesurfer – http://www.speech.kth.se/wavesurfer/
Sweep – http://www.metadecks.org/software/sweep/

i hope thats enough lol