Split wav file by silence gap

Question

I have a bunch human reading simple sentence (hello world) as a wav file, How can I break the wav file for 2 wav files each contains word (hello and world) by automatically recognizing the gap between the words? Is there a tool or library that can do that? Thank you!

Answer 1

Audacity can do that - see here: http://wiki.audacityteam.org/wiki/Splitting_recordings_into_separate_tracks#Automatic_labelling_based_on_silences

Also you should look at SoX - Sound eXchange.