} // End Sub Main
// https://ourcodeworld.com/articles/read/702/how-to-record-the-audio-from-the-sound-card-system-audio-with-c-using-naudio-in-winforms
// https://stackoverflow.com/questions/18812224/c-sharp-recording-audio-from-soundcard
static void TestAudioRecording()
{
// Define the output wav file of the recorded audio
string outputFilePath = @"D:\username\Desktop\system_recorded_audio.wav";
// Redefine the capturer instance with a new instance of the LoopbackCapture class
NAudio.Wave.WasapiLoopbackCapture CaptureInstance = new NAudio.Wave.WasapiLoopbackCapture();
// Redefine the audio writer instance with the given configuration
NAudio.Wave.WaveFileWriter RecordedAudioWriter = new NAudio.Wave.WaveFileWriter(outputFilePath, CaptureInstance.WaveFormat);
// When the capturer receives audio, start writing the buffer into the mentioned file
CaptureInstance.DataAvailable += (s, a) =>
{
// Write buffer into the file of the writer instance
RecordedAudioWriter.Write(a.Buffer, 0, a.BytesRecorded);
};
// When the Capturer Stops, dispose instances of the capturer and writer
CaptureInstance.RecordingStopped += (s, a) =>
{
RecordedAudioWriter.Dispose();
RecordedAudioWriter = null;
CaptureInstance.Dispose();
};
// Start audio recording !
CaptureInstance.StartRecording();
System.Console.WriteLine(" --- Press any key to stop recording --- ");
System.Console.ReadKey();
CaptureInstance.StopRecording();
} // End Sub Main
public static void Main()
{
SetConsoleCtrlHandler(new ConsoleEventDelegate(ConsoleEventCallback), true);
waveIn = new NAudio.Wave.WasapiLoopbackCapture();
waveFileWriter = new NAudio.Lame.LameMP3FileWriter(@fileName, waveIn.WaveFormat, NAudio.Lame.LAMEPreset.STANDARD);
waveIn.DataAvailable += waveIn_DataAvailable;
waveIn.RecordingStopped += waveIn_RecordingStopped;
waveIn.StartRecording();
}
public bool test()
{
tested = true;
wf = null;
try
{
if (mm == null)
{
return(false);
}
NAudio.Wave.IWaveIn dev = null;
capt1 = mm.FriendlyName; // windows name
capt2 = mm.DeviceFriendlyName; // just device
if (capt1.EndsWith(capt2 + ")"))
{
capt1 = capt1.Substring(0, capt1.Length - (capt2.Length + 3));
}
isRec = mm.DataFlow == NAudio.CoreAudioApi.DataFlow.All || mm.DataFlow == NAudio.CoreAudioApi.DataFlow.Capture;
isPlay = mm.DataFlow == NAudio.CoreAudioApi.DataFlow.All || mm.DataFlow == NAudio.CoreAudioApi.DataFlow.Render;
dev = isPlay
? dev = new NAudio.Wave.WasapiLoopbackCapture(mm)
: dev = new NAudio.CoreAudioApi.WasapiCapture(mm);
if (dev != null)
{
wf = dev.WaveFormat;
makeSerializationData();
dev.Dispose();
return(true);
}
}
catch
{
mm = null;
}
return(false);
}
public PlaybackRecorder(NAudio.CoreAudioApi.MMDevice device)
{
capture = new NAudio.Wave.WasapiLoopbackCapture(device);
capture.DataAvailable += capture_DataAvailable;
}
private void HandleHotkey()
{
if (!recording)
{
sourceStream = new NAudio.Wave.WasapiLoopbackCapture();
sourceStream.DataAvailable += new EventHandler<NAudio.Wave.WaveInEventArgs>(sourceStream_DataAvailable);
path = folderLocation.Text + "\\";
filename = GetFileName(false);
if (recordToMp3.Checked)
{
filetype = ".mp3";
mp3Writer = new NAudio.Lame.LameMP3FileWriter(filename + filetype, sourceStream.WaveFormat, 128);
}
else
{
filetype = ".wav";
waveWriter = new NAudio.Wave.WaveFileWriter(filename + filetype, sourceStream.WaveFormat);
}
sourceStream.StartRecording();
recording = true;
timer.Start();
notifyIcon.BalloonTipText = "Started recording.";
if (showNotifications.Checked)
notifyIcon.ShowBalloonTip(1000);
}
else
{
StopRecording();
}
}
