3 lines of code are required with the wrapper. To test this, I created a project (just happened to be in Visual Basic) where I added a WinForm with two buttons on it. / The name of the file that was set when StartRecording was called. int secondsRecorded = (int)(_writer.Length / _) _writer.Write(e.Buffer, 0, e.BytesRecorded) Void OnDataAvailable(object sender, WaveInEventArgs e) The data will be written out to disk at this point. / Event handled when data becomes available. Writer Close() needs to come first otherwise NAudio will lock up. Void OnRecordingStopped(object sender, StoppedEventArgs e) We will clean up open objects here that are required to be / Event handled when recording is stopped. _waveIn.RecordingStopped += OnRecordingStopped _waveIn.DataAvailable += OnDataAvailable _writer = new WaveFileWriter(fileName, _waveIn.WaveFormat) If we are currently record then go ahead and exit out. Public void StartRecording(string fileName) / A wrapper for the WasapiLoopbackCapture that will implement basic recording to a file that is overwrite only. I basically turned it into a reusable class (for how I use it). I should note also, portions of this are based off of one of the samples that was included with NAudio. I typically code in Visual Basic but I went ahead and wrote this as a C# class and compiled it into the NAudio assembly. The code was fairly straightforward but I decided to create a wrapper that would make my re-use of it only a few lines of code when I needed it in my hobby projects. In one of the recent versions the added the ability to record from the loopback and the cool thing is that it appears to work whether the sound card supports recording what you hear or not. NAudio is a project that is hosted at CodePlex and has been actively developed for over a decade now (at least it appears that way from some of the comment files included).
#Audio loopback string code drivers#
as i moved to windows 8 basic audio was no longer able to record for me because my audio drivers don't support what you hear on windows 8. as windows versions increment this functionality seems to be disappearing from a lot of drivers. the main requirement though is that the audio drivers are capable of recording what you hear. basic audio uses the windows api to record from a given device.
In the past I had used a project I created called basic audio that is hosted over at codeplex. There have been times when I have needed to record what is coming through the speaker. The source code for that library and the link to the Nuget are: Update: I've cleaned this code up and created a Nuget package that supports both.
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