How to record voice and send it to server?

I need to record the voice of the student from the client and send it to server to check whether there are any gramatical mistakes in it. I have designed the client in flex.

My problem is, i have no idea of how to store the recorded sound and send it to 开发者_如何学Pythonthe server. can you guys give some guidelines? And one more question is red5 better than flash media server?

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Red5 and FMS both can do the recording task for you.

For recording, you have to use the NetStream class. That will send the recording real-time to the server. When closing the NetStream make sure the buffer is empty so you don't cut the recording.

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You cannot record the sound on the client.the recording and the sending is a single seamless process.

About the servers, I don't know if better is the correct question, it's free so I'd rather use it in this case.