I have a Flash application from which people can broadcast live. The stream is also recorded in MP4 using the LiveStreamRecord plugin. Since Flash does not support AAC/MP3 audio, the application broadcasts H264 video with SPEEX audio encoding. We are using Wowza transcoder to transcode the stream to H264/AAC and in multiple bit rates.
The problem is that audio is out of sync in MP4 recordings of all bitrates. Can someone tell me what we can do to fix this?