Recording of video and audio is asynchronous

Hi,
I'm currently able to record audio and video (from a webcam) to a Flash Media Server. However, in some cases users have a webcam with no builtin
microphone. In that case the flash client uses the default microphone with 'Microphone.getMicrophone();' and possibly selects the micrphone of the PC.
A delay between audio and video is caused in cases with a separated webcam and microphone. There isn't a lot of delay on an internal network (e.g. LAN) however, there is a very large delay between audio and video on an external network (e.g. WAN).
Is there a solution to this problem? I know i'm not able to check if a webcam has a builtin microphone...
Thanks in advance,
Ferhat Yildiz

How could I use this to make a distinction between a PC microphone and a webcam microphone (not just on my PC but possibly hundreds or thousands of PC's)?
I've tested the Youtube webcam recording application with a separate microphone and webcam (for uploading webcam recordings to Youtube). I was amazed that they're able to record synchronous audio and video with a separate webcam and microphone. Is there an easy way to combine the two separate sources of input? I'm ofcourse using one NetStream object to send both audio and video.
Regards,
FY

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