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I need to capture the input stream from a microphone in my application, which is written in VB.NET. I need to be able to stream this data to a file or over HTTP and possibly encode it using LAME MP3. Can anybody help me get started with this?
Thank you!
If you want a .NET solution, you can check out NAudio which is an open source audio library. Look at the
WaveInStreamclass (orWaveInin the latest code). This will let you open a microphone, and receive events containing the latest captured bytes. This would be quite easy then to pass on to a stream.As for encoding MP3 using LAME, one approach I have seen used is to pass the audio to lame.exe via stdin and read the mp3 from stdout. This is I think easier than getting hold of a LAME DLL and writing interop wrappers for it.
Update: I have created an example project that uses NAudio to record from the microphone, and LAME to save as MP3 at http://voicerecorder.codeplex.com. See my article at Coding4Fun here.