We are collecting passive panda acoustic data from 3 recorders at the zoo. We need a tool that tosses out silent portions of the audio so that we're not sifting through hours of data with nothing. Would be ideal if the filename could extrapolate the timestamp from the was it came from (because the wav recordings contain the timestamp) so that we don't need to continuously reference the original sound file. the segments will need a metadata file to go with them.