Hello,

Sorry to hear you are having this issue. I would make sure you are using supported audio codecs:
Wowza Streaming Engine Supported Formats

and if so, I would recommend opening a support case with the below info for further review:

[install-dir]/conf
[install-dir]/logs
[install-dir]/transcoder
[install-dir]/manager/logs
If you are not sure how to get this information please see the following tutorial.
http://www.wowza.com/forums/content....c-OS-and-Linux

Best,
Jason