[root@localhost ~]#  tail /var/log/asterisk/full
Oct  2 01:37:21 VERBOSE[5190] logger.c: Asterisk Dynamic Loader Starting:
Oct  2 01:37:21 VERBOSE[5190] logger.c:   == Parsing '/etc/asterisk/modules.conf': Oct  2 01:37:21 VERBOSE[5190] logger.c:   == Parsing '/etc/asterisk/modules.conf': Found
Oct  2 01:37:21 VERBOSE[5190] logger.c:  [format_wav.so]Oct  2 01:37:21 VERBOSE[5190] logger.c:  [format_wav.so] => (Microsoft WAV format (8000hz Signed Linear))
Oct  2 01:37:21 VERBOSE[5190] logger.c:   == Registered file format wav, extension(s) wav
Oct  2 01:37:21 VERBOSE[5190] logger.c:  [format_pcm.so]Oct  2 01:37:21 VERBOSE[5190] logger.c:  [format_pcm.so] => (Raw uLaw 8khz Audio support (PCM))
Oct  2 01:37:21 VERBOSE[5190] logger.c:   == Registered file format pcm, extension(s) pcm|ulaw|ul|mu
Oct  2 01:37:21 VERBOSE[5190] logger.c:  [format_au.so]Oct  2 01:37:21 VERBOSE[5190] logger.c:  [format_au.so] => (Sun Microsystems AU format (signed linear))
Oct  2 01:37:21 VERBOSE[5190] logger.c:   == Registered file format au, extension(s) au
Oct  2 01:37:21 VERBOSE[5190] logger.c:  [format_mp3.so]Oct  2 01:37:21 WARNING[5190] loader.c: /usr/lib/asterisk/modules/format_mp3.so: cannot open shared object file: No such file or directory
Oct  2 01:37:21 WARNING[5190] loader.c: Loading module format_mp3.so failed!
[root@localhost ~]#