/// <summary>
/// Runs the main loop until "exit" or "quit" is heard.
/// </summary>
/// <param name="cancellationToken"></param>
private async Task RunAsync(CancellationToken cancellationToken)
{
StartListeningOnLoopback();
Console.WriteLine("Listening");
_soundIn.Start();
_soundIn.Stopped += (sender, args) =>
{
Console.WriteLine("Mic stopped");
};
while (true && !cancellationToken.IsCancellationRequested)
{
await MaybeStartStreamAsync();
// ProcessResponses will return false if it hears "exit" or "quit".
var result = await ProcessResponses();
if (result == false)
{
Console.WriteLine("User Exited");
return;
}
await TransferMicrophoneChunkAsync();
}
}
public virtual void Initialize()
{
_wasapiCapture = new WasapiCapture
{
Device = _captureDevice
};
_wasapiCapture.Initialize();
var soundInSource = new SoundInSource(_wasapiCapture);
if (_triggerSingleBlockRead)
{
var notificationStream =
new SingleBlockNotificationStream(soundInSource.ChangeSampleRate(48000).ToMono().ToSampleSource());
notificationStream.SingleBlockRead += NotificationStreamOnSingleBlockRead;
_captureSource = notificationStream.ToWaveSource(16);
}
else
{
_captureSource = soundInSource
.ChangeSampleRate(48000)
.ToMono()
.ToSampleSource()
.ToWaveSource(16);
}
soundInSource.DataAvailable += SoundInSourceOnDataAvailable;
_wasapiCapture.Start();
}
/// <summary>
/// Creates a new stream and starts the recording.
/// </summary>
public async Task GetNextRecording()
{
mSttStream = mSttClient.CreateStream();
mAudioCapture.Start();
Console.ReadLine();
await StopRecordingAsync();
}
private void btnStartStop_Click(object sender, EventArgs e)
{
if (!recording)
{
btnStartStop.Text = "Stop";
writer = new WaveWriter(textOutputFile.Text, capture.WaveFormat);
capture.Start();
recording = true;
recordTime = new TimeSpan();
recordTimer.Enabled = true;
btnSelectDevice.Enabled = false;
Console.WriteLine("Started recording");
}
else
{
btnStartStop.Text = "Start!";
capture.Stop();
writer.Dispose();
recording = false;
recordTimer.Enabled = false;
btnSelectDevice.Enabled = true;
Console.WriteLine("Stopped recording");
}
}
/// <summary>
/// Initializes the visualizer and audio capture.
/// </summary>
protected override void Initialize()
{
IsMouseVisible = true;
graphics.HardwareModeSwitch = false;
graphics.PreferredBackBufferWidth = ViewportWidth;
graphics.PreferredBackBufferHeight = ViewportHeight;
//graphics.IsFullScreen = true;
graphics.ApplyChanges();
viewportAdapter = new BoxingViewportAdapter(Window, GraphicsDevice, ViewportWidth, ViewportHeight);
Camera = new Camera2D(viewportAdapter);
soundIn = new WasapiLoopbackCapture();
//soundIn = new WasapiCapture();
soundIn.Initialize();
SoundInSource inSource = new SoundInSource(soundIn);
ISampleSource sampleSource = inSource.ToSampleSource();
SetupSampleSource(sampleSource);
byte[] buffer = new byte[source.WaveFormat.BytesPerSecond / 2];
inSource.DataAvailable += (s, e) =>
{
int read;
while ((read = source.Read(buffer, 0, buffer.Length)) > 0) ;
};
soundIn.Start();
base.Initialize();
}
public AudioCapture(int sampleRate, int sampleSize)
{
this.sampleRate = sampleRate;
this.sampleSize = sampleSize;
if (sampleSize <= 0)
{
throw new ArgumentException("Sample size must be > 0, instead it is " + sampleSize);
}
resSamples = new float[this.sampleSize];
var ayy = new MMDeviceEnumerator();
// This uses the wasapi api to get any sound data played by the computer
capture = new WasapiCapture(false, AudioClientShareMode.Shared);
capture.Device = ayy.GetDefaultAudioEndpoint(DataFlow.Capture, Role.Multimedia);
capture.Initialize();
capture.DataAvailable += Capture_DataAvailable;
IWaveSource source = new SoundInSource(capture);
dataSource = new PureDataSource(new WaveFormat(sampleRate, 8, 1), source.ToSampleSource());
dataSource.OnDataRead += DataSource_OnDataRead;
finalSource = dataSource.ToWaveSource();
capture.Start();
}
private void button_start_Click(object sender, EventArgs e)
{
wavein = null;
wavein = new WasapiCapture(false, AudioClientShareMode.Exclusive, 5);
wavein.Device = inputDevices[comboBox_mic.SelectedIndex];
wavein.Initialize();
wavein.Start();
source = new SoundInSource(wavein)
{
FillWithZeros = true
};
//add my special effects in the chain
efxProcs = new EfxProcs(source.ToSampleSource().ToMono());
efxProcs.gain = linearGain; //keep track of this changing value
efxProcs.pitchFactor = pitchShift; //keep track of pitch
waveout = null;
waveout = new WasapiOut(false, AudioClientShareMode.Exclusive, 5);
waveout.Device = outputDevices[comboBox_speaker.SelectedIndex];
waveout.Initialize(efxProcs.ToWaveSource()); //source.ToSampleSource().ToWaveSource());//
waveout.Play();
//CSCore.Streams.SampleConverter.SampleToIeeeFloat32 sampleToIeee = new CSCore.Streams.SampleConverter.SampleToIeeeFloat32(source.ToSampleSource());
timer1.Enabled = true;
}
private void OpenDefault()
{
Stop();
//open the default device
_soundIn = new WasapiLoopbackCapture();
//Our loopback capture opens the default render device by default so the following is not needed
//_soundIn.Device = MMDeviceEnumerator.DefaultAudioEndpoint(DataFlow.Render, Role.Console);
_soundIn.Initialize();
var soundInSource = new SoundInSource(_soundIn);
ISampleSource source = soundInSource.ToSampleSource().AppendSource(x => new PitchShifter(x), out _pitchShifter);
SetupSampleSource(source);
// We need to read from our source otherwise SingleBlockRead is never called and our spectrum provider is not populated
byte[] buffer = new byte[_source.WaveFormat.BytesPerSecond / 2];
soundInSource.DataAvailable += (s, aEvent) =>
{
int read;
while ((read = _source.Read(buffer, 0, buffer.Length)) > 0)
{
;
}
};
//play the audio
_soundIn.Start();
timer.Start();
}
private void button_Click(object sender, RoutedEventArgs e)
{
MMDevice dev = (MMDevice)comboBox.SelectedItem;
if (mmdevicesOut.Contains(dev))
{
capture = new WasapiLoopbackCapture();
}
else
{
capture = new WasapiCapture();
}
capture.Device = dev;
capture.Initialize();
w = new WasapiOut();
w.Device = (MMDevice)comboBox_Copy.SelectedItem;
w.Initialize(new SoundInSource(capture)
{
FillWithZeros = true
});
capture.Start();
w.Play();
}
// Helper for State.Looking
void StartCapture()
{
Debug.Assert(m_State == State.Looking);
Debug.Assert(m_AudioCapture != null);
// TODO: This starts as a WaveSource (raw bytes), converts to floats
// so we can notify once for each sample.
// The SingleBlockNotificationStream is very garbagey; we should use our own
// wrapper that grabs all the samples read and pushes them into m_HotValues
// en masse instead of one-at-a-time.
var soundInSource = new SoundInSource(m_AudioCapture);
var sampleSource = soundInSource.ToSampleSource();
var singleBlockNotificationStream = new SingleBlockNotificationStream(sampleSource);
m_FinalSource = singleBlockNotificationStream;
// Consume and discard any bytes when they come in. We do this for
// its side effects (firing the SingleBlockNotificationStream event).
// buffer is closed-over by the lambda.
float[] buffer = new float[m_FinalSource.WaveFormat.BytesPerSecond / 4];
soundInSource.DataAvailable += (s, e) =>
{
int read;
do
{
read = m_FinalSource.Read(buffer, 0, buffer.Length);
} while (read > 0);
};
singleBlockNotificationStream.SingleBlockRead += SingleBlockNotificationStreamOnSingleBlockRead;
m_AudioCapture.Start();
}
public void SoundInToSoundOutTest_Wasapi()
{
for (int i = 0; i < 10; i++)
{
var waveIn = new WasapiCapture();
waveIn.Initialize();
waveIn.Start();
var waveInToSource = new SoundInSource(waveIn)
{
FillWithZeros = true
};
var soundOut = new WasapiOut();
soundOut.Initialize(waveInToSource);
soundOut.Play();
Thread.Sleep(2000);
Assert.AreEqual(PlaybackState.Playing, soundOut.PlaybackState);
soundOut.Dispose();
waveIn.Dispose();
}
}
public SoundCapture()
{
// This uses the wasapi api to get any sound data played by the computer
capture = new WasapiLoopbackCapture();
capture.Initialize();
// Get our capture as a source
IWaveSource source = new SoundInSource(capture);
// From https://github.com/filoe/cscore/blob/master/Samples/WinformsVisualization/Form1.cs
// This is the typical size, you can change this for higher detail as needed
fftSize = FftSize.Fft4096;
// Actual fft data
fftBuffer = new float[(int)fftSize];
// Tells us when data is available to send to our spectrum
var notificationSource = new SingleBlockNotificationStream(source.ToSampleSource());
notificationSource.SingleBlockRead += NotificationSource_SingleBlockRead;
// We use this to request data so it actualy flows through (figuring this out took forever...)
finalSource = notificationSource.ToWaveSource();
capture.DataAvailable += Capture_DataAvailable;
capture.Start();
}
void Start()
{
fftData = new float[fftSize];
persistentSamples = new FixedQueue <float> [PersSampleUpperIndex - PersSampleLowerIndex];
smoothedSamples = new float[persistentSamples.Length];
for (int i = 0; i < persistentSamples.Length; i++)
{
persistentSamples[i] = new FixedQueue <float>(PersistenSampleLength);
}
line = GetComponent <LineRenderer>();
leftChannel = new float[TotalSamples];
capture = new WasapiLoopbackCapture();
capture.Initialize();
var soundInSource = new SoundInSource(capture);
var source = soundInSource.ToSampleSource().AppendSource(x => new PitchShifter(x), out pitchShifter);
fft1 = new FftTransform(source.WaveFormat.Channels, fftSize);
fft2 = new FftProvider(source.WaveFormat.Channels, FftSize.Fft2048);
stream = new SingleBlockNotificationStream(pitchShifter);
stream.SingleBlockRead += SingleBlockRead;
waveSource = stream.ToWaveSource(16);
buffer = new byte[waveSource.WaveFormat.BytesPerSecond / 2];
soundInSource.DataAvailable += DataAvailable;
capture.DataAvailable += (sender, args) => DataAvailable(sender, args);
capture.Start();
}
public void StartRecordingSetDevice(MMDevice recordingDevice)
{
if (recordingDevice == null)
{
MessageBox.Show(Properties.Strings.MessageBox_NoRecordingDevices);
Console.WriteLine("No devices found.");
return;
}
soundIn = new CSCore.SoundIn.WasapiLoopbackCapture
{
Device = recordingDevice
};
soundIn.Initialize();
soundInSource = new SoundInSource(soundIn)
{
FillWithZeros = false
};
convertedSource = soundInSource.ChangeSampleRate(44100).ToSampleSource().ToWaveSource(16);
convertedSource = convertedSource.ToStereo();
soundInSource.DataAvailable += OnDataAvailable;
soundIn.Start();
var format = convertedSource.WaveFormat;
waveFormat = NAudio.Wave.WaveFormat.CreateCustomFormat(WaveFormatEncoding.Pcm, format.SampleRate, format.Channels, format.BytesPerSecond, format.BlockAlign, format.BitsPerSample);
}
public Visualization()
{
new Thread(() =>
{
Stop();
//open the default device
_soundIn = new WasapiLoopbackCapture();
_soundIn.Initialize();
var soundInSource = new SoundInSource(_soundIn);
SetupSampleSource(soundInSource.ToSampleSource());
// We need to read from our source otherwise SingleBlockRead is never called and our spectrum provider is not populated
byte[] buffer = new byte[_source.WaveFormat.BytesPerSecond / 2];
soundInSource.DataAvailable += (s, aEvent) =>
{
int read;
while ((read = _source.Read(buffer, 0, buffer.Length)) > 0)
{
;
}
};
_soundIn.Start(); //play the audio
_Timer.Elapsed += new ElapsedEventHandler(GenerateEvent);
_Timer.Start();
}).Start();
}
private void StartCapture()
{
if (SelectedDevice == null)
{
return;
}
if (CaptureMode == "Capture")
{
_soundIn = new WasapiCapture();
}
_soundIn.Device = SelectedDevice;
_soundIn.Initialize();
var soundInSource = new SoundInSource(_soundIn);
var singleBlockNotificationStream = new SingleBlockNotificationStream(soundInSource.ToSampleSource());
_finalSource = singleBlockNotificationStream.ToWaveSource();
_writer = new WaveWriter("tmp.wav", _finalSource.WaveFormat);
byte[] buffer = new byte[_finalSource.WaveFormat.BytesPerSecond / 2];
soundInSource.DataAvailable += (s, e) =>
{
int read;
while ((read = _finalSource.Read(buffer, 0, buffer.Length)) > 0)
{
_writer.Write(buffer, 0, read);
}
};
//singleBlockNotificationStream.SingleBlockRead += SingleBlockNotificationStreamOnSingleBlockRead; // visualization
_soundIn.Start();
}
//most of this code is stolen from the example in the CSCore github so idk what it does 40% of the time
public void Initialize(FFTSize _size = FFTSize._4096)
{
size = _size;
_soundIn = new WasapiLoopbackCapture();
_soundIn.Initialize();
var soundInSource = new SoundInSource(_soundIn);
var source = soundInSource.ToSampleSource();
_fft = new FftProvider(source.WaveFormat.Channels, (FftSize)size);
var n = new SingleBlockNotificationStream(source);
n.SingleBlockRead += (s, a) => _fft.Add(a.Left, a.Right);
_source = n.ToWaveSource(16);
byte[] buffer = new byte[_source.WaveFormat.BytesPerSecond];
soundInSource.DataAvailable += (s, aEvent) =>
{
int read;
while ((read = _source.Read(buffer, 0, buffer.Length)) > 0)
{
;
}
};
_soundIn.Start();
}
static void Test()
{
var soundIn = new WasapiCapture();
soundIn.Initialize();
var soundInSource = new RealTimeSoundInSource(soundIn);
var soundOut = new WasapiOut();
soundOut.Initialize(soundInSource);
soundIn.Start();
soundOut.Play();
soundOut.Stopped += (s, e) =>
{
Console.WriteLine("I'm dead but not dead, P.P.A.P");
Task.Run(() =>
{
soundOut.Play();
});
};
while (true)
{
Console.ReadLine();
}
}
private void GetCapture(bool isController, string deviceId = null)
{
if (!isController)
{
if (_soundCapture != null)
{
_soundCapture?.Stop();
_soundCapture?.Dispose();
}
using (MMDeviceEnumerator enumerator = new MMDeviceEnumerator())
{
//using (MMDevice device = enumerator.GetDefaultAudioEndpoint(DataFlow.Capture, Role.Communications))
//{
MMDevice device;
if (deviceId != null)
{
device = enumerator.GetDevice(deviceId);
}
else
{
device = enumerator.GetDefaultAudioEndpoint(DataFlow.Capture, _currentCaptureRole);
}
_meter = AudioMeterInformation.FromDevice(device);
_soundCapture = new WasapiCapture(true, AudioClientShareMode.Shared, 250)
{
Device = device
};
_soundCapture.Initialize();
_soundCapture.Start();
//}
}
}
}
/// <summary>
/// Begin the audio input
/// </summary>
public static void InitAudioSource(MMDevice device)
{
Stop();
//open default audio device
m_SoundIn = new WasapiLoopbackCapture();
m_SoundIn.Device = device;
m_SoundIn.Initialize();
var soundInSource = new SoundInSource(m_SoundIn);
ISampleSource source = soundInSource.ToSampleSource();
SetupSampleSource(source);
byte[] buffer = new byte[m_Source.WaveFormat.BytesPerSecond / 2];
soundInSource.DataAvailable += (s, aEvent) =>
{
int read;
while ((read = m_Source.Read(buffer, 0, buffer.Length)) > 0)
{
;
}
};
m_SoundIn.Start();
MainWindow.StartTimer();
}
/// <summary>
/// Starts the audio capture.
/// </summary>
/// <exception cref="InvalidOperationException">if the audio capture was already started or if no data handlers were supplied</exception>
public void Start()
{
if (_hasHandler)
{
if (Interlocked.CompareExchange(ref _isRunning, 1, 0) == 0)
{
_log.InfoFormat(
"Starting audio capture with formats [{0}] -> [{1}]",
_soundInSource.WaveFormat,
_convertedSource.WaveFormat
);
_capture.Start();
}
else
{
var message = string.Format(
"Cannot start audio capture with formats [{0}] -> [{1}]; capture is already active",
_soundInSource.WaveFormat,
_convertedSource.WaveFormat
);
_log.Warn(message);
throw new InvalidOperationException(message);
}
}
else
{
throw new InvalidOperationException("Cannot start capture without at least one data handler");
}
}
public void CSCoreAudioRecording()
{
using (capture = new WasapiLoopbackCapture())
{
aTimer = new Timer();
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent); //jak czas minie, wyłącz nagrywanie
aTimer.Interval = 8000; //czas nagrywania
//inicjalizacja urządzenia do nagrywania
capture.Initialize();
using (writer = new WaveWriter("dump.wav", capture.WaveFormat))
{
capture.DataAvailable += (s, e) =>
{
//save the recorded audio
writer.Write(e.Data, e.Offset, e.ByteCount);
};
//start recording
capture.Start();
aTimer.Enabled = true;
Console.WriteLine("Rozpoczęto nagrywanie.");
Console.ReadKey();
}
}
}
static void Main(string[] args)
{
MMDevice dev = MMDeviceEnumerator.DefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
capture = new WasapiLoopbackCapture();
capture.Device = dev;
capture.Initialize();
SoundInSource soundInSource = new SoundInSource(capture);
nStream = new SingleBlockNotificationStream(soundInSource.ToSampleSource());
final = nStream.ToWaveSource();
nStream.SingleBlockRead += NStream_SingleBlockRead;
soundInSource.DataAvailable += encode;
trashBuf = new byte[final.WaveFormat.BytesPerSecond / 2];
Console.WriteLine($"sample rate:{capture.WaveFormat.SampleRate}");
Console.WriteLine($"bits per sample:{capture.WaveFormat.BitsPerSample }");
Console.WriteLine($"channels:{capture.WaveFormat.Channels }");
Console.WriteLine($"bytes per sample:{capture.WaveFormat.BytesPerSample }");
Console.WriteLine($"bytes per second:{capture.WaveFormat.BytesPerSecond }");
Console.WriteLine($"AudioEncoding:{capture.WaveFormat.WaveFormatTag }");
EncodingContext context = FrameEncoder.GetDefaultsContext();
context.Channels = 6;
context.SampleRate = capture.WaveFormat.SampleRate;
context.AudioCodingMode = AudioCodingMode.Front3Rear2;
context.HasLfe = true;
context.SampleFormat = A52SampleFormat.Float;
enc = new FrameEncoderFloat(ref context);
//_writer = new WaveWriter("test.ac3", final.WaveFormat);
capture.Start();
wBuffSrc = new WriteableBufferingSource(new WaveFormat(capture.WaveFormat.SampleRate, capture.WaveFormat.BitsPerSample, capture.WaveFormat.Channels, AudioEncoding.WAVE_FORMAT_DOLBY_AC3_SPDIF), (int)capture.WaveFormat.MillisecondsToBytes(20));
w = new WasapiOut2(false, AudioClientShareMode.Shared, 20);
w.Device = MMDeviceEnumerator.EnumerateDevices(DataFlow.Render, DeviceState.Active).Where(x => x.FriendlyName.Contains("Digital")).Single();
AudioClient a = AudioClient.FromMMDevice(w.Device);
w.Initialize(wBuffSrc);
w.Play();
Task.Run(async() => await encoderThread());
//encodeSinus();
Console.ReadLine();
System.Environment.Exit(0);
}
private void comboBox_mic_SelectedIndexChanged(object sender, EventArgs e)
{
if (comboBox_mic.SelectedIndex != 0)
{
wavein.Device = inputDevices[comboBox_mic.SelectedIndex];
wavein.Initialize();
wavein.Start();
}
}
public Class1()
{
//create a new soundIn instance
var soundIn = new WasapiCapture();
//optional: set some properties
//soundIn.Device = ...
//...
soundIn.Device = new DeviceService().InputDevices().First();
//initialize the soundIn instance
soundIn.Initialize();
//create a SoundSource around the the soundIn instance
//this SoundSource will provide data, captured by the soundIn instance
SoundInSource soundInSource = new SoundInSource(soundIn)
{
FillWithZeros = false
};
//create a source, that converts the data provided by the
//soundInSource to any other format
//in this case the "Fluent"-extension methods are being used
IWaveSource convertedSource = soundInSource
.ToStereo() //2 channels (for example)
.ChangeSampleRate(8000) // 8kHz sample rate
.ToSampleSource()
.ToWaveSource(16); //16 bit pcm
//register an event handler for the DataAvailable event of
//the soundInSource
//Important: use the DataAvailable of the SoundInSource
//If you use the DataAvailable event of the ISoundIn itself
//the data recorded by that event might won't be available at the
//soundInSource yet
soundInSource.DataAvailable += (s, e) =>
{
//read data from the converedSource
//important: don't use the e.Data here
//the e.Data contains the raw data provided by the
//soundInSource which won't have your target format
byte[] buffer = new byte[convertedSource.WaveFormat.BytesPerSecond / 2];
int read;
//keep reading as long as we still get some data
//if you're using such a loop, make sure that soundInSource.FillWithZeros is set to false
while ((read = convertedSource.Read(buffer, 0, buffer.Length)) > 0)
{
//your logic follows here
//for example: stream.Write(buffer, 0, read);
}
};
//we've set everything we need -> start capturing data
soundIn.Start();
}
protected override void OnInitializeDevice()
{
base.OnInitializeDevice();
_capture = CreateCapture();
_capture.DataAvailable += OnCaptureDataAvailable;
_capture.Initialize();
_capture.Start();
}
private void Form1_Load(object sender, EventArgs e)
{
Stop();
_soundIn = new WasapiLoopbackCapture();
_soundIn.Initialize();
var soundInSource = new SoundInSource(_soundIn);
ISampleSource source = soundInSource.ToSampleSource().AppendSource(x => new PitchShifter(x), out _pitchShifter);
SetupSampleSource(source);
byte[] buffer = new byte[_source.WaveFormat.BytesPerSecond / 2];
soundInSource.DataAvailable += (s, aEvent) =>
{
int read;
while ((read = _source.Read(buffer, 0, buffer.Length)) > 0)
{
;
}
};
_soundIn.Start();
try
{
MSI = new Lighting(Allowed);
}
catch (MSIRGB.Lighting.Exception ex)
{
if (ex.GetErrorCode() == Lighting.ErrorCode.DriverLoadFailed)
{
MessageBox.Show("Please run program as administrator.");
Close();
}
else if (ex.GetErrorCode() == Lighting.ErrorCode.MotherboardModelNotSupported)
{
if (MessageBox.Show("Your motherboard not supported but it will work, Application will run at your own risk", "MSI Magic Light", MessageBoxButtons.OKCancel) == DialogResult.OK)
{
Allowed = true;
}
else
{
Close();
}
}
else if (ex.GetErrorCode() == Lighting.ErrorCode.MotherboardVendorNotSupported)
{
MessageBox.Show("Your motherboard not supported at all, We are sorry :(");
this.Close();
}
else
{
MessageBox.Show("Unknown Error, Please report it on github");
this.Close();
}
}
}
void StartCapturingAndHold(WasapiCapture capture)
{
capture.Start();
#if DEBUG
Console.WriteLine("Start Capturing...");
Console.WriteLine("Input Format: " + capture.WaveFormat.ToString());
#endif
_ = Console.ReadKey();
capture.Stop();
}
/// <summary>
/// Start recording on the device in the parameter.
/// </summary>
/// <param name="recordingDevice">the device to start recording</param>
/// <returns>true if the recording is started, or false</returns>
public bool StartRecordingSetDevice(MMDevice recordingDevice)
{
if (recordingDevice == null)
{
logger.Log(Properties.Strings.MessageBox_NoRecordingDevices);
return(false);
}
try
{
soundIn = new CSCore.SoundIn.WasapiLoopbackCapture
{
Device = recordingDevice
};
soundIn.Initialize();
soundInSource = new SoundInSource(soundIn)
{
FillWithZeros = false
};
convertedSource = soundInSource.ChangeSampleRate(44100).ToSampleSource().ToWaveSource(16);
convertedSource = convertedSource.ToStereo();
soundInSource.DataAvailable += OnDataAvailable;
soundIn.Stopped += OnRecordingStopped;
soundIn.Start();
var format = convertedSource.WaveFormat;
waveFormat = NAudio.Wave.WaveFormat.CreateCustomFormat(WaveFormatEncoding.Pcm, format.SampleRate, format.Channels, format.BytesPerSecond, format.BlockAlign, format.BitsPerSample);
isRecording = true;
bufferCaptured = new BufferBlock()
{
Data = new byte[convertedSource.WaveFormat.BytesPerSecond / 2]
};
bufferSend = new BufferBlock()
{
Data = new byte[convertedSource.WaveFormat.BytesPerSecond / 2]
};
eventThread = new Thread(EventThread)
{
Name = "Loopback Event Thread",
IsBackground = true
};
eventThread.Start(new WeakReference <LoopbackRecorder>(this));
return(true);
}
catch (Exception ex)
{
logger.Log(ex, "Error initializing the recording device:");
}
return(false);
}
public static async Task RecordSample()
{
//create a new soundIn instance
var soundIn = new WasapiCapture();
//optional: set some properties
//soundIn.Device = ...
//...
soundIn.Device = new DeviceService().InputDevices().First();
soundIn.Initialize();
var waveWriter = new WaveWriter(@"C:\Users\Cedric Lampron\Desktop\Test Record\dump.wav", soundIn.WaveFormat);;
await Task.Run(() =>
{
//create a SoundSource around the the soundIn instance
//this SoundSource will provide data, captured by the soundIn instance
var soundInSource = new SoundInSource(soundIn)
{
FillWithZeros = false
};
//create a source, that converts the data provided by the
//soundInSource to any other format
//in this case the "Fluent"-extension methods are being used
IWaveSource convertedSource = soundInSource
.ToStereo() //2 channels (for example)
.ChangeSampleRate(8000) // 8kHz sample rate
.ToSampleSource()
.ToWaveSource(16); //16 bit pcm
//register an event handler for the DataAvailable event of
//the soundInSource
//Important: use the DataAvailable of the SoundInSource
//If you use the DataAvailable event of the ISoundIn itself
//the data recorded by that event might won't be available at the
//soundInSource yet
soundInSource.DataAvailable += (s, e) =>
{
waveWriter.Write(e.Data, e.Offset, e.ByteCount);
};
//we've set everything we need -> start capturing data
soundIn.Start();
});
await Task.Delay(5000);
soundIn.Stop();
waveWriter.Dispose();
waveWriter = null;
soundIn.Dispose();
soundIn = null;
}