The Chinese School audio files need to be edited.  In particular, these files need to be made longer so that students can more easily control their playback.  This will be done by added 1-2 seconds of silence to the end of each audio file and then copying and pasting this new audio 3x.  The end result will be an audio file in which the item (vocabulary work) will be repeated 3x with 1-2 seconds of silence between them.