Converted FLV to MP4 No Audio

I've seen several older posts but I haven't found any solutions. We are trying to convert our recorded meetings from Adobe Connect to a format our staff can view offline, such as an MP4 or WMV. The downloaded file from Adobe Connect is an FLV. For some reason when we do the conversion using AME, the video is fine but there is no audio. When the FLV is imported it also shows as "No audio" in the Source field. I know the FLV has audio because I can use a 3rd party media player such as VLC and it plays fine, with audio. We are using Adobe Connect version 9.4.2 and AME CS6 version 6.0.3.1. Also I am aware there are 3rd party apps that can do this but we aren't allowed to use 3rd party apps. I am also aware there is a paid feature in Connect 9.4 and is included in Connect 9.5 but we will not be getting that anytime soon. Thanks.