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Any one help me how to capture pcm data from microphone in windows metro app using C#.

Roman R.
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user2239191
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  • thanks for reply @RomanR.Actually i goggled lot and dint find any tutorial so i don't have idea about this so can u suggest me how to implement this. – user2239191 May 15 '13 at 08:04
  • What about this one: [How to record audio or video (Windows Store apps using JavaScript and HTML)](http://msdn.microsoft.com/en-us/library/windows/apps/hh452798.aspx), or this one: [Audio capture in metro apps](http://stackoverflow.com/questions/9880569/audio-capture-in-metro-apps) – Roman R. May 15 '13 at 08:05
  • Sorry @RomanR. i will try to do this in C# – user2239191 May 15 '13 at 08:07
  • [`MediaCapture`](http://msdn.microsoft.com/en-us/library/windows/apps/windows.media.capture.mediacapture.aspx) class there is available to both JavaScript and C#. – Roman R. May 15 '13 at 08:08
  • i am used mediaCapture class. but i don't know how to capture pcm data. – user2239191 May 15 '13 at 08:26

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You need to write a C++ component that uses WASAPI, as far as I'm aware this can't be done in only C#.

There's a great working example here:

http://www.codeproject.com/Articles/525620/Recording-audio-to-WAV-with-WASAPI-in-Windows-Stor

The source code for the article is hard to find so here's a link:

http://www.codeproject.com/KB/audio-video/525620/RecordingWavFilesWithWasapiInWindowsRT.zip

I have previously used this in my C# app to allow people to pause their audio recordings.

Oliver Mahoney
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