How to save audio to mp3 on Silverlight 4

As you know Silverlight 4 supports access to the microphone. Besides it can call COM objects on the client side. To save the audio in mp3 format we need: Make the COM object wrapper, which allows us to invoke the necessary Alvas.Audio functionality. Create AlvasCom project as ClassLibrary. In AssemblyInfo.cs change the line [assembly: ComVisible(false)] to [assembly: ComVisible(true)] Add a reference to Alvas.Audio.dll Add Alvas.Audio-wrapper interface and its implementation. See the code below...