I have to receive voice from my user's microphone into my webpage and save it into database. I want to know, is ASP.NET supports Voice and Video ? if yes then which namespace or dll required. Any other information in this regard will be helpful. What is start point to use voice in asp.net webpage?
Microsoft is generally pushing Silverlight for video/audio functionality. You can build your whole application in Silverlight or build just a Silverlight widget to be used in a larger ASP.NET application.
Video and Audio (Silverlight QuickStart)
http://www.silverlight.net/learn/quickstarts/audioandvideo/
Audio and Video Overview
http://msdn.microsoft.com/en-us/library/cc189078%28v=vs.95%29.aspx
Your First Step to the Silverlight Voice/Video Chatting Client/Server
http://www.codeproject.com/KB/silverlight/SilverlightVoiceVideoChat.aspx