[CentOS] trace?

Dear All I have installed an announcement application on my centos 6.0 server that calls for putting specific voice announcement files under /usr/local/srf/bin/prompt to be played in response to certain conditions occurred . There are a huge number of files in the announcement directory and it seems that just one of these voice files is corrupt . Can you please let me know how can I trace in real time to see which application is going to use this folder and which of these files will be accessed at the moment ? My goal is to find that corrupted voice file in real time . Thank you