private void InitAudioCapture() { // Configuramos DirectSound device = new Device(); device.SetCooperativeLevel(this, CooperativeLevel.Normal); capture = new Capture(record_source); // Creamos Waveformat waveFormat = new WaveFormat { BitsPerSample = bitsPerSample, // 16 bits BlockAlign = (short)(channels * (bitsPerSample / (short)8)), Channels = channels, // Stereo AverageBytesPerSecond = (short)(channels * (bitsPerSample / (short)8)) * samplesPerSecond, // 22kHz SamplesPerSecond = samplesPerSecond, // 22kHz FormatTag = WaveFormatTag.Pcm }; captureBuffDesc = new CaptureBufferDescription { BufferBytes = waveFormat.AverageBytesPerSecond / 5, Format = waveFormat }; bufferDesc = new BufferDescription { BufferBytes = waveFormat.AverageBytesPerSecond / 5, Format = waveFormat }; bufferplayback = new SecondaryBuffer(bufferDesc, device); buffersize = captureBuffDesc.BufferBytes; }
WaveFormat TryNewFormat(int hz, short bits, short channels) { WaveFormat format = new WaveFormat(); format.FormatTag = WaveFormatTag.Pcm; format.SamplesPerSecond = hz; format.BitsPerSample = bits; format.Channels = channels; format.BlockAlign = (short)(format.Channels * (format.BitsPerSample / 8)); format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond; CaptureBufferDescription dscheckboxd = new CaptureBufferDescription(); CaptureBuffer pDSCaptureBuffer = null; dscheckboxd.BufferBytes = format.AverageBytesPerSecond; dscheckboxd.Format = format; try { pDSCaptureBuffer = new CaptureBuffer(dscheckboxd, device); pDSCaptureBuffer.Dispose(); return(format); } catch { // Can't return null, because WaveFormat is a value type. throw; } }
private void CreateCaptureBuffer() { // 缓冲区的描述对象 CaptureBufferDescription bufferdescription = new CaptureBufferDescription(); if (null != mNotify) { mNotify.Dispose(); mNotify = null; } if (null != mRecBuffer) { mRecBuffer.Dispose(); mRecBuffer = null; } // 设定通知的大小,默认为1s钟 mNotifySize = (1024 > mWavFormat.AverageBytesPerSecond / 8) ? 1024 : (mWavFormat.AverageBytesPerSecond / 8); mNotifySize -= mNotifySize % mWavFormat.BlockAlign; // 设定缓冲区大小 mBufferSize = mNotifySize * cNotifyNum; // 创建缓冲区描述 bufferdescription.BufferBytes = mBufferSize; bufferdescription.Format = mWavFormat; // 录音格式 // 创建缓冲区 mRecBuffer = new CaptureBuffer(bufferdescription, mCapDev); mNextCaptureOffset = 0; }
public void StartRecording(int deviceIndex) { if (mCaptureBuffer != null) { if (mCaptureBuffer.Capturing) { mCaptureBuffer.Stop(); } mCaptureBuffer.Dispose(); mCaptureBuffer = null; } CaptureDevicesCollection audioDevices = new CaptureDevicesCollection(); if (deviceIndex != -1 && deviceIndex < audioDevices.Count - 1) { // initialize the capture buffer and start the animation thread Capture capture = new Capture(audioDevices[deviceIndex].DriverGuid); CaptureBufferDescription captureBufferDescription = new CaptureBufferDescription(); WaveFormat waveFormat = new WaveFormat(); waveFormat.BitsPerSample = 16; waveFormat.SamplesPerSecond = 8000; waveFormat.Channels = 1; waveFormat.BlockAlign = (short)(waveFormat.Channels * waveFormat.BitsPerSample / 8); waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * waveFormat.SamplesPerSecond; waveFormat.FormatTag = WaveFormatTag.Pcm; captureBufferDescription.Format = waveFormat; captureBufferDescription.BufferBytes = waveFormat.SamplesPerSecond * 120; mCaptureBuffer = new Microsoft.DirectX.DirectSound.CaptureBuffer(captureBufferDescription, capture); mCaptureBuffer.Start(true); } }
public static void SetVoiceDevices(int deviceID, short channels, short bitsPerSample, int samplesPerSecond) { device = new Device(); device.SetCooperativeLevel(new System.Windows.Forms.Control(), CooperativeLevel.Normal); CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); DeviceInformation deviceInfo = captureDeviceCollection[deviceID]; capture = new Capture(deviceInfo.DriverGuid); waveFormat = new WaveFormat(); waveFormat.Channels = channels; waveFormat.FormatTag = WaveFormatTag.Pcm; waveFormat.SamplesPerSecond = samplesPerSecond; waveFormat.BitsPerSample = bitsPerSample; waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond; captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; captureBufferDescription.Format = waveFormat; playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; playbackBufferDescription.Format = waveFormat; playbackBufferDescription.GlobalFocus = true; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device); bufferSize = captureBufferDescription.BufferBytes; }
private void UDP_Initialize() { try { device = new Device(); device.SetCooperativeLevel(this, CooperativeLevel.Normal); CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); DeviceInformation deviceInfo = captureDeviceCollection[0]; capture = new Capture(deviceInfo.DriverGuid); short channels = 1; //Stereo. short bitsPerSample = 16; //16Bit, alternatively use 8Bits. int samplesPerSecond = 22050; //11KHz use 11025 , 22KHz use 22050, 44KHz use 44100 etc. //Set up the wave format to be captured. waveFormat = new WaveFormat(); waveFormat.Channels = channels; waveFormat.FormatTag = WaveFormatTag.Pcm; waveFormat.SamplesPerSecond = samplesPerSecond; waveFormat.BitsPerSample = bitsPerSample; waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond; captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;//approx 200 milliseconds of PCM data. captureBufferDescription.Format = waveFormat; playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; playbackBufferDescription.Format = waveFormat; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device); bufferSize = captureBufferDescription.BufferBytes; bIsCallActive = false; nUdpClientFlag = 0; //Using UDP sockets clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); EndPoint ourEP = new IPEndPoint(IPAddress.Any, 9450); //Listen asynchronously on port 1450 for coming messages (Invite, Bye, etc). clientSocket.Bind(ourEP); //Receive data from any IP. EndPoint remoteEP = (EndPoint)(new IPEndPoint(IPAddress.Any, 0)); byteData = new byte[1024]; //Receive data asynchornously. clientSocket.BeginReceiveFrom(byteData, 0, byteData.Length, SocketFlags.None, ref remoteEP, new AsyncCallback(UDP_OnReceive), null); } catch (Exception ex) { MessageBox.Show(ex.Message, "VoiceChat-Initialize ()", MessageBoxButtons.OK, MessageBoxIcon.Error); } }
public float GetSignFromDevice(out float response) { cap = new Capture(deviceGuid); desc = new CaptureBufferDescription(); WaveFormat wf = new WaveFormat(); wf.BitsPerSample = bitsPerSample; wf.SamplesPerSecond = sampleRate; wf.Channels = channels; wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8); wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond; wf.FormatTag = WaveFormatTag.Pcm; desc.Format = wf; desc.BufferBytes = SAMPLES * wf.BlockAlign; buffer = new Microsoft.DirectX.DirectSound.CaptureBuffer(desc, cap); buffer.Start(true); while (start) { Array samples = buffer.Read(0, typeof(Int16), LockFlag.FromWriteCursor, SAMPLE_FORMAT_ARRAY); response = ((float)samples.GetValue(0, 0, 0)) / 100; } response = 0.0f; return(0.0f); }
/// <summary> /// Pequeno teste conceitual utilizando a placa de som padrao /// </summary> public void teste() { Capture cap = new Capture(new DeviceInformation().DriverGuid); CaptureBufferDescription desc = new CaptureBufferDescription(); CaptureBuffer buffer; WaveFormat wf = new WaveFormat(); wf.BitsPerSample = 16; wf.SamplesPerSecond = 44100; wf.Channels = 2; wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8); wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond; wf.FormatTag = WaveFormatTag.Pcm; desc.Format = wf; desc.BufferBytes = SAMPLES * wf.BlockAlign; buffer = new Microsoft.DirectX.DirectSound.CaptureBuffer(desc, cap); buffer.Start(true); zed: Array samples = buffer.Read(0, typeof(Int16), LockFlag.FromWriteCursor, SAMPLE_FORMAT_ARRAY); System.Console.WriteLine(samples.GetValue(0, 0, 0).ToString()); goto zed; }
// Helper method to test a specific WaveFormat instance. private void VerifyFormat(WaveFormat newFormat) { if (this._captureDevice == null) { throw new InvalidOperationException("Capture device is null."); } CaptureBufferDescription capBuffDesc = new CaptureBufferDescription(); capBuffDesc.BufferBytes = newFormat.AverageBytesPerSecond; capBuffDesc.Format = newFormat; CaptureBuffer capBuff = null; try { capBuff = new CaptureBuffer(capBuffDesc, this._captureDevice); } catch (Exception ex) { string errMsg = string.Format("Sound format not supported: {0} samples/sec, {1} bits/sample, {2} channels.", newFormat.SamplesPerSecond, newFormat.BitsPerSample, newFormat.Channels); throw new Exception(errMsg, ex); } if (capBuff != null) { capBuff.Dispose(); capBuff = null; } }
public void StartCapture(int sampleRate, Capture captureDevice) { StopCapture(); EmptyRequest(); this.sampleRate = sampleRate; readPos = 0; IsRecording = false; record = null; recordTime = 0; noRecordTime = 0; lastSample = null; lastSize = 0; capture = (captureDevice == null) ? new Capture() : captureDevice; WaveFormat waveFormat = new WaveFormat();// Load the sound waveFormat.BitsPerSample = 16; waveFormat.BlockAlign = 2; waveFormat.Channels = 1; waveFormat.AverageBytesPerSecond = sampleRate * 2; waveFormat.SamplesPerSecond = sampleRate; waveFormat.FormatTag = WaveFormatTag.Pcm; CaptureBufferDescription captureBuffDesc = new CaptureBufferDescription(); captureBuffDesc.BufferBytes = bufferSize; captureBuffDesc.Format = waveFormat; captureBuffer = new CaptureBuffer(captureBuffDesc, capture); captureBuffer.Start(true); captureThread = new Thread(captureLoop); captureThread.Start(); new Thread(EmptyRequest).Start(); }
public void SetVoiceDevices(int deviceID, short channels, short bitsPerSample, int samplesPerSecond) { // Установка голосовых устройств _device = new Device(); // Звуковое устройство ввода _device.SetCooperativeLevel(new System.Windows.Forms.Control(), CooperativeLevel.Normal); // Установить форму приложения и приоритет CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); // Получить доступ к устройству (звуковая карта) DeviceInformation deviceInfo = captureDeviceCollection[deviceID]; // установить номер устройства _capture = new Capture(deviceInfo.DriverGuid); //Получить информация о драйвере выбранного устройства //Настроить wave формат для захвата. _waveForm = new WaveFormat(); // Объявление формата _waveForm.Channels = channels; // Каналы _waveForm.FormatTag = WaveFormatTag.Pcm; // PCM - Pulse Code Modulation _waveForm.SamplesPerSecond = samplesPerSecond; // установить число образцов в секунду _waveForm.BitsPerSample = bitsPerSample; // Установить колличество бит на образец _waveForm.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); // данных в одном байте, 1 * (16/8) = 2 bits _waveForm.AverageBytesPerSecond = _waveForm.BlockAlign * samplesPerSecond; // байт в секунду 22050*2= 44100 _capBufDescr = new CaptureBufferDescription(); _capBufDescr.BufferBytes = _waveForm.AverageBytesPerSecond / 5; // 200 милисекунд для записи = 8820 бит _capBufDescr.Format = _waveForm; // Using Wave Format // воспроизведение _playbackBufferDescription = new BufferDescription(); _playbackBufferDescription.BufferBytes = _waveForm.AverageBytesPerSecond / 5; // воспроизведение - 200 милисекунд = 8820 Bит _playbackBufferDescription.Format = _waveForm; _playbackBuffer = new SecondaryBuffer(_playbackBufferDescription, _device); _bufferSize = _capBufDescr.BufferBytes; }
static void InicialiceCaptureBuffer() { try { CaptureDevicesCollection audioDevices = new CaptureDevicesCollection(); // initialize the capture buffer and start the animation thread Capture cap = new Capture(audioDevices[1].DriverGuid); CaptureBufferDescription desc = new CaptureBufferDescription(); WaveFormat wf = new WaveFormat(); wf.BitsPerSample = 16; wf.SamplesPerSecond = 44100; wf.Channels = (short)cap.Caps.Channels; wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8); wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond; wf.FormatTag = WaveFormatTag.Pcm; desc.Format = wf; desc.BufferBytes = SAMPLES * wf.BlockAlign; buffer = new CaptureBuffer(desc, cap); buffer.Start(true); } catch { Console.WriteLine("Error al iniciar el capturador de sonido"); } }
public void SetVoiceDevices(int deviceID, short channels, short bitsPerSample, int samplesPerSecond) { // Installization Voice Devices device = new Device(); // Sound Input Device device.SetCooperativeLevel(new System.Windows.Forms.Control(), CooperativeLevel.Normal); // Set The Application Form and Priority CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); // To Get Available Devices (Input Sound Card) DeviceInformation deviceInfo = captureDeviceCollection[deviceID]; // Set Device Number capture = new Capture(deviceInfo.DriverGuid); // Get The Selected Device Driver Information //Set up the wave format to be captured. waveFormat = new WaveFormat(); // Wave Format declaration waveFormat.Channels = channels; // Channels (2 if Stereo) waveFormat.FormatTag = WaveFormatTag.Pcm; // PCM - Pulse Code Modulation waveFormat.SamplesPerSecond = samplesPerSecond; // The Number of Samples Peer One Second waveFormat.BitsPerSample = bitsPerSample; // The Number of bits for each sample waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); // Minimum atomic unit of data in one byte, Ex: 1 * (16/8) = 2 bits waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond; // required Bytes-Peer-Second Ex. 22050*2= 44100 captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; //Ex. 200 milliseconds of PCM data = 8820 Bytes (In Record) captureBufferDescription.Format = waveFormat; // Using Wave Format // Playback playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; //Ex. 200 milliseconds of PCM data = 8820 Bytes (In Playback) playbackBufferDescription.Format = waveFormat; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device); bufferSize = captureBufferDescription.BufferBytes; }
public void CreateCaptureBuffer() {//想要创建一个捕捉缓冲区必须要两个参数:缓冲区信息(描述这个缓冲区中的格式等),缓冲设备。 CaptureBufferDescription bufferdescription = new CaptureBufferDescription(); bufferdescription.Format = mWavFormat; //设置缓冲区要捕捉的数据格式 iNotifySize = 1024; //设置通知大小 iBufferSize = iNotifyNum * iNotifySize; bufferdescription.BufferBytes = iBufferSize; capturebuffer = new CaptureBuffer(bufferdescription, capture);//建立设备缓冲区对象 }
private void InitializeBuffer() { CaptureBufferDescription bd = new CaptureBufferDescription(); bd.Format = getWaveFormat(); mBufferLength = (int)getPositionEquivalent(new TimeSpan(BUFFER_MS * TimeSpan.TicksPerMillisecond)); bd.BufferBytes = mBufferLength; mBuffer = new CaptureBuffer(bd, mRecordCapture); mCycleCount = 0; }
private void CreateCaptureBuffer() { //To create a capture buffer, you must have two parameters: //the buffer information (describing the format in this buffer, etc.), the buffer device. CaptureBufferDescription bufferdescription = new CaptureBufferDescription(); bufferdescription.Format = mWavFormat; //Sets the data format to be captured by the buffer iNotifySize = 1024; //Set the notification size iBufferSize = iNotifyNum * iNotifySize; bufferdescription.BufferBytes = iBufferSize; capturebuffer = new CaptureBuffer(bufferdescription, capture);//Create a device buffer object }
/* * Initializes all the data members. */ private void Initialize() { try { device = new Device(); device.SetCooperativeLevel(this, CooperativeLevel.Normal); CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); DeviceInformation deviceInfo = captureDeviceCollection[0]; capture = new Capture(deviceInfo.DriverGuid); short channels = 1; //Stereo. short bitsPerSample = 16; //16Bit, alternatively use 8Bits. int samplesPerSecond = 44100; //11KHz use 11025 , 22KHz use 22050, 44KHz use 44100 etc. //Set up the wave format to be captured. waveFormat = new WaveFormat(); waveFormat.Channels = channels; waveFormat.FormatTag = WaveFormatTag.Pcm; waveFormat.SamplesPerSecond = samplesPerSecond; waveFormat.BitsPerSample = bitsPerSample; waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond; captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond;//approx 200 milliseconds of PCM data. captureBufferDescription.Format = waveFormat; playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond; playbackBufferDescription.Format = waveFormat; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device); bufferSize = captureBufferDescription.BufferBytes; bIsCallActive = false; nUdpClientFlag = 0; speaker = new Speakers(); speaker.Mono = true; Volume vol; vol = Volume.Min; } catch (Exception ex) { MessageBox.Show("Audio device(s) missing", "VCES - Audio device error", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } }
/// <summary> /// 创建捕捉缓冲区对象 /// </summary> private void CreateCaptureBuffer() { //想要创建一个捕捉缓冲区必须要两个参数:缓冲区信息(描述这个缓冲区中的格式等),缓冲设备。 WaveFormat mWavFormat = SetWaveFormat(); CaptureBufferDescription bufferdescription = new CaptureBufferDescription(); bufferdescription.Format = mWavFormat; //设置缓冲区要捕捉的数据格式 iNotifySize = mWavFormat.AverageBytesPerSecond / iNotifyNum; //1秒的数据量/设置的通知数得到的每个通知大小小于0.2s的数据量,话音延迟小于200ms为优质话音 iBufferSize = iNotifyNum * iNotifySize; bufferdescription.BufferBytes = iBufferSize; bufferdescription.ControlEffects = true; bufferdescription.WaveMapped = true; capturebuffer = new CaptureBuffer(bufferdescription, capture);//建立设备缓冲区对象 }
public AudioCapture() { try { directSoundCapture = new DirectSoundCapture(); } catch { throw new AudioCaptureException("Could not open recording device"); } //var directSoundCaps = directSoundCapture.Capabilities; // Default 44.1kHz 16-bit stereo PCM waveFormat = new WaveFormat(); // Set the buffer size. // Note that the buffer position will roll over to 0 when the buffer fills up, // so set the notification position's offset to one less than the buffer size. bufferSize = waveFormat.ConvertLatencyToByteSize(latency); numberOfSamples = bufferSize / waveFormat.BlockAlign; // Create audio capture buffer captureBufferDesc = new CaptureBufferDescription(); captureBufferDesc.Format = waveFormat; captureBufferDesc.BufferBytes = bufferSize; captureBuffer = new CaptureBuffer(directSoundCapture, captureBufferDesc); // Wait events allow the thread to wait asynchronously for the buffer to fill var evt = new AutoResetEvent(false); fullEvent = new WaitHandle[] { evt }; // Notify the thread when the buffer is full var nf = new NotificationPosition(); nf.Offset = bufferSize - 1; nf.WaitHandle = fullEvent[0]; var nfs = new NotificationPosition[] { nf }; captureBuffer.SetNotificationPositions(nfs); // Start the processing thread thread = new Thread(new ThreadStart(Process)); thread.IsBackground = true; // Allow application to exit thread.Start(); }
public bool Initialize(Form MainForm, string Names) { checked { try { NamesPhone = Names; device = new Device(); device.SetCooperativeLevel(MainForm, CooperativeLevel.Normal); CaptureDevicesCollection captureDevicesCollection = new CaptureDevicesCollection(); cap = new Capture(captureDevicesCollection[0].DriverGuid); short num = 1; short num2 = 16; int num3 = 22050; waveFormat = new WaveFormat(); waveFormat.Channels = num; waveFormat.FormatTag = WaveFormatTag.Pcm; waveFormat.SamplesPerSecond = num3; waveFormat.BitsPerSample = num2; waveFormat.BlockAlign = (short)Math.Round(unchecked ((double)num * ((double)num2 / 8.0))); waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * num3; captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = (int)Math.Round(unchecked ((double)waveFormat.AverageBytesPerSecond / 5.0)); captureBufferDescription.Format = waveFormat; playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = (int)Math.Round(unchecked ((double)waveFormat.AverageBytesPerSecond / 5.0)); playbackBufferDescription.Format = waveFormat; playbackBufferDescription.ControlEffects = true; playbackBufferDescription.GlobalFocus = true; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device); bufferSize = captureBufferDescription.BufferBytes; Thread thread = new Thread(Process); thread.Start(); } catch (Exception ex) { ProjectData.SetProjectError(ex); Exception ex2 = ex; bool result = false; ProjectData.ClearProjectError(); return(result); } return(true); } }
/// <summary> /// Creates a capture buffer and sets the format /// </summary> private void CreateCaptureBuffer() { CaptureBufferDescription dscheckboxd = new CaptureBufferDescription(); if (null != applicationNotify) { applicationNotify.Dispose(); applicationNotify = null; } if (null != applicationBuffer) { applicationBuffer.Dispose(); applicationBuffer = null; } if (0 == InputFormat.Channels) { throw new ArgumentException("Audio Channels cannot be zero (use 1 - mono, 2 - stereo, etc.)."); } // Set the notification size notifySize = (1024 > InputFormat.AverageBytesPerSecond / 8) ? 1024 : (InputFormat.AverageBytesPerSecond / 8); notifySize -= notifySize % InputFormat.BlockAlign; // Set the buffer sizes captureBufferSize = notifySize * NumberRecordNotifications; // Create the capture buffer dscheckboxd.BufferBytes = captureBufferSize; dscheckboxd.Format = InputFormat; // Set the format during creation try { applicationBuffer = new CaptureBuffer(dscheckboxd, applicationDevice); } catch (ApplicationException) { //Yeah, I know, D i r e c t X managed... throw new ApplicationException("The sound capturing device is not ready. Is '" + CaptureDevice + "' plugged in?"); } nextCaptureOffset = 0; InitDirectSoundNotifications(); }
/// <summary> /// Setup the buffer and notifications. Needs to be called after the /// format has been setup. /// </summary> public void createRecordBuffer() { // Create the recordBufferDesciption to be used CaptureBufferDescription recordBufferDescription = new CaptureBufferDescription(); // Setup the pre-calculated buffer size recordBufferDescription.BufferBytes = _recordBufferSize; // Set the record buffer to the format which has been pre-defined recordBufferDescription.Format = _recordFormat; // Setup an instance of the capture buffer using the previously // formed description and the default capture device (as created in the // createCaptureDevice method) _recordBuffer = new CaptureBuffer(recordBufferDescription, captureDevice); // Now the buffer is setup, its time to config setup the notifications setupNotifications(); }
public void Init() { mCurrentDeviceName = mAudioDevices[mCurrentDeviceIndex].Description; Microsoft.DirectX.DirectSound.Capture audioCapture = new Capture(mAudioDevices[mCurrentDeviceIndex].DriverGuid); Microsoft.DirectX.DirectSound.CaptureBufferDescription audioCaptureDescription = new CaptureBufferDescription(); Microsoft.DirectX.DirectSound.WaveFormat audioFormat = new WaveFormat(); audioFormat.BitsPerSample = (short)(mChannels * 8); audioFormat.SamplesPerSecond = 44100; audioFormat.Channels = (short)mChannels; audioFormat.BlockAlign = (short)(mChannels * audioFormat.BitsPerSample / 8); audioFormat.AverageBytesPerSecond = audioFormat.BlockAlign * audioFormat.SamplesPerSecond; audioFormat.FormatTag = WaveFormatTag.Pcm; audioCaptureDescription.Format = audioFormat; audioCaptureDescription.BufferBytes = mSamples * audioFormat.BlockAlign; mAudioBuffer = new CaptureBuffer(audioCaptureDescription, audioCapture); mIsRunning = false; }
private void ScanAvailableInputFormats() { //----------------------------------------------------------------------------- // Name: ScanAvailableInputFormats() // Desc: Tests to see if 20 different standard wave formats are supported by // the capture device //----------------------------------------------------------------------------- WaveFormat format = new WaveFormat(); CaptureBufferDescription dscheckboxd = new CaptureBufferDescription(); CaptureBuffer pDSCaptureBuffer = null; // This might take a second or two, so throw up the hourglass Cursor = Cursors.WaitCursor; format.FormatTag = WaveFormatTag.Pcm; // Try 20 different standard formats to see if they are supported for (int iIndex = 0; iIndex < 20; iIndex++) { GetWaveFormatFromIndex(iIndex, ref format); // To test if a capture format is supported, try to create a // new capture buffer using a specific format. If it works // then the format is supported, otherwise not. dscheckboxd.BufferBytes = format.AverageBytesPerSecond; dscheckboxd.Format = format; try { pDSCaptureBuffer = new CaptureBuffer(dscheckboxd, mf.applicationDevice); InputFormatSupported[iIndex] = true; } catch { InputFormatSupported[iIndex] = false; } if (pDSCaptureBuffer != null) { pDSCaptureBuffer.Dispose(); } } Cursor = Cursors.Default; }
/// <summary> /// Starts capture process. /// </summary> public void Start() { EnsureIdle(); isCapturing = true; WaveFormat format = new WaveFormat(); format.Channels = ChannelCount; format.BitsPerSample = BitsPerSample; format.SamplesPerSecond = SampleRate; format.FormatTag = WaveFormatTag.Pcm; format.BlockAlign = (short)((format.Channels * format.BitsPerSample + 7) / 8); format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond; bufferLength = format.AverageBytesPerSecond * BufferSeconds; CaptureBufferDescription desciption = new CaptureBufferDescription(); desciption.Format = format; desciption.BufferBytes = bufferLength; capture = new Capture(device.Id); buffer = new CaptureBuffer(desciption, capture); int waitHandleCount = BufferSeconds * NotifyPointsInSecond; BufferPositionNotify[] positions = new BufferPositionNotify[waitHandleCount]; for (int i = 0; i < waitHandleCount; i++) { BufferPositionNotify position = new BufferPositionNotify(); position.Offset = (i + 1) * bufferLength / positions.Length - 1; position.EventNotifyHandle = positionEventHandle.DangerousGetHandle(); positions[i] = position; } notify = new Notify(buffer); notify.SetNotificationPositions(positions); terminated.Reset(); thread = new Thread(new ThreadStart(ThreadLoop)); thread.Name = "Sound capture"; thread.Start(); }
void CreateCaptureBuffer() { //----------------------------------------------------------------------------- // Name: CreateCaptureBuffer() // Desc: Creates a capture buffer and sets the format //----------------------------------------------------------------------------- CaptureBufferDescription dscheckboxd = new CaptureBufferDescription(); if (null != notify) { notify.Dispose(); notify = null; } if (null != buffer) { buffer.Dispose(); buffer = null; } if (0 == selectedFormat.Channels) { return; } // Set the notification size notifySize = (1024 > selectedFormat.AverageBytesPerSecond / 8) ? 1024 : (selectedFormat.AverageBytesPerSecond / 8); notifySize -= notifySize % selectedFormat.BlockAlign; // Set the buffer sizes captureBufferSize = notifySize * NumberRecordNotifications; // Create the capture buffer dscheckboxd.BufferBytes = captureBufferSize; selectedFormat.FormatTag = WaveFormatTag.Pcm; dscheckboxd.Format = selectedFormat; // Set the format during creatation buffer = new CaptureBuffer(dscheckboxd, selectedDevice); nextCaptureOffset = 0; InitNotifications(); }
void CreateCaptureBuffer() { //----------------------------------------------------------------------------- // Name: CreateCaptureBuffer() // Desc: Creates a capture buffer and sets the format //----------------------------------------------------------------------------- CaptureBufferDescription dscheckboxd = new CaptureBufferDescription(); if (null != applicationNotify) { applicationNotify.Dispose(); applicationNotify = null; } if (null != applicationBuffer) { applicationBuffer.Dispose(); applicationBuffer = null; } if (0 == InputFormat.Channels) { return; } // Set the notification size NotifySize = (1024 > InputFormat.AverageBytesPerSecond / 8) ? 1024 : (InputFormat.AverageBytesPerSecond / 8); NotifySize -= NotifySize % InputFormat.BlockAlign; // Set the buffer sizes CaptureBufferSize = NotifySize * NumberRecordNotifications; // Create the capture buffer dscheckboxd.BufferBytes = CaptureBufferSize; InputFormat.FormatTag = WaveFormatTag.Pcm; dscheckboxd.Format = InputFormat; // Set the format during creatation applicationBuffer = new CaptureBuffer(dscheckboxd, applicationDevice); NextCaptureOffset = 0; InitNotifications(); }
public void CreateCaptureBuffer() { // Desc: Creates a capture buffer and sets the format CaptureBufferDescription dsc = new CaptureBufferDescription(); if (null != applicationNotify) { applicationNotify.Dispose(); applicationNotify = null; } if (null != applicationBuffer) { applicationBuffer.Dispose(); applicationBuffer = null; } if (0 == InputFormat.Channels) { return; } m_iNotifySize = (1024 > InputFormat.AverageBytesPerSecond / 8) ? 1024 : (InputFormat.AverageBytesPerSecond / 8); m_iNotifySize -= m_iNotifySize % InputFormat.BlockAlign; // Set the buffer sizes m_iCaptureBufferSize = m_iNotifySize * NumberRecordNotifications; //calculate the size of VuMeter Update array length /* * m_UpdateVMArrayLength = m_iCaptureBufferSize/ 50 ; * CalculationFunctions cf = new CalculationFunctions(); * m_UpdateVMArrayLength = Convert.ToInt32 (cf.AdaptToFrame ( Convert.ToInt32 ( m_UpdateVMArrayLength ), m_FrameSize) ); * arUpdateVM = new byte [ m_UpdateVMArrayLength ] ; */ // Create the capture buffer dsc.BufferBytes = m_iCaptureBufferSize; InputFormat.FormatTag = WaveFormatTag.Pcm; // Set the format during creatation dsc.Format = InputFormat; applicationBuffer = new CaptureBuffer(dsc, this.m_cApplicationDevice); NextCaptureOffset = 0; InitNotifications(); }
private void InitCaptureBuffer() { if (captureBuffer_ != null) { captureBuffer_.Dispose(); captureBuffer_ = null; } notifySize_ = (1024 > waveFormat_.AverageBytesPerSecond / 8) ? 1024 : (waveFormat_.AverageBytesPerSecond / 8); notifySize_ -= notifySize_ % waveFormat_.BlockAlign; captureBufferSize_ = notifySize_ * NOTIFY_NUM; CaptureBufferDescription bufferDescription = new CaptureBufferDescription(); bufferDescription.BufferBytes = captureBufferSize_; bufferDescription.Format = waveFormat_; captureBuffer_ = new CaptureBuffer(bufferDescription, capture_); captureOffset_ = 0; captureDataLength_ = 0; }
private CaptureBuffer CreateCaptureBuffer(ISource aSource, int aBytes) { var format = new WaveFormat { SamplesPerSecond = 44100, BitsPerSample = 16, Channels = 2, FormatTag = WaveFormatTag.Pcm, BlockAlignment = 4, AverageBytesPerSecond = 44100 * 4 // 2 channels, 2 bytes per sample }; var desc = new CaptureBufferDescription { Format = format, BufferBytes = aBytes }; DirectSoundCapture capture = new DirectSoundCapture(); return(new CaptureBuffer(capture, desc)); }
public override void Start() { if (this.isCapturing) { throw new InvalidOperationException("Capture is in process"); } this.isCapturing = true; this.bufferLength = this.Format.AverageBytesPerSecond * bufferSeconds; CaptureBufferDescription desciption = new CaptureBufferDescription(); desciption.Format = this.Format; desciption.BufferBytes = bufferLength; this.captureDevice = new DirectSoundCapture(); this.captureBuffer = new CaptureBuffer(captureDevice, desciption); int waitHandleCount = bufferSeconds * notifyPointsInSecond; NotificationPosition[] notificationPositions = new NotificationPosition[waitHandleCount]; for (int i = 0; i < waitHandleCount; i++) { NotificationPosition position = new NotificationPosition(); position.Offset = (i + 1) * bufferLength / notificationPositions.Length - 1; position.Event = positionEvent; notificationPositions[i] = position; } this.captureBuffer.SetNotificationPositions(notificationPositions); this.terminatedEvent.Reset(); this.captureThread = new Thread(new ThreadStart(this.CaptureLoop)); this.captureThread.Name = "Sound capture"; this.captureThread.Start(); }
// bufferSize is a SAMPLE COUNT // NOTE: we always capture 16 bits/sample public WaveCapture(Guid deviceGuid, int Fs, int bufferSize, int timerInterval) { CaptureBufferDescription desc = new CaptureBufferDescription(); desc.BufferBytes = bufferSize * 2; desc.ControlEffects = false; desc.WaveMapped = true; desc.Format = new WaveFormat(); desc.Format.FormatTag = SlimDX.WaveFormatTag.Pcm; desc.Format.SamplesPerSecond = Fs; desc.Format.Channels = 1; desc.Format.BitsPerSample = 16; desc.Format.BlockAlignment = 2; desc.Format.AverageBytesPerSecond = Fs * 2; buf = new byte[bufferSize * 2]; capture = new DirectSoundCapture(deviceGuid); captureBuffer = new CaptureBuffer(capture, desc); timer = new Timer(); timer.Interval = timerInterval; timer.Tick += new EventHandler(timer_Tick); }
private void InicializeCaptureSound() { device = new Device(); //device.SetCooperativeLevel(this, CooperativeLevel.Normal); //CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); //capture = new Capture(captureDeviceCollection[0].DriverGuid); //DeviceInformation deviceInfo = (DeviceInformation) cmbRecordDevices.SelectedItem; //captureDeviceCollection[0]; capture = new Capture(record_source); SetWaveFormat(); captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;//approx 200 milliseconds of PCM data. captureBufferDescription.Format = waveFormat; playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; playbackBufferDescription.Format = waveFormat; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device); bufferSize = captureBufferDescription.BufferBytes; }
/// <summary> /// Starts capture process. /// </summary> public void Start() { EnsureIdle(); isCapturing = true; WaveFormat format = new WaveFormat(); format.Channels = ChannelCount; format.BitsPerSample = BitsPerSample; format.SamplesPerSecond = SampleRate; format.FormatTag = WaveFormatTag.Pcm; format.BlockAlign = (short)((format.Channels * format.BitsPerSample + 7) / 8); format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond; bufferLength = format.AverageBytesPerSecond * BufferSeconds; CaptureBufferDescription desciption = new CaptureBufferDescription(); desciption.Format = format; desciption.BufferBytes = bufferLength; capture = new Capture(device.Id); buffer = new CaptureBuffer(desciption, capture); int waitHandleCount = BufferSeconds * NotifyPointsInSecond; BufferPositionNotify[] positions = new BufferPositionNotify[waitHandleCount]; for (int i = 0; i < waitHandleCount; i++) { BufferPositionNotify position = new BufferPositionNotify(); position.Offset = (i + 1) * bufferLength / positions.Length - 1; position.EventNotifyHandle = positionEventHandle.DangerousGetHandle(); positions[i] = position; } notify = new Notify(buffer); notify.SetNotificationPositions(positions); terminated.Reset(); thread = new Thread(new ThreadStart(ThreadLoop)); thread.Name = "Sound capture"; thread.Start(); }
private void CreateCaptureBuffer() { CaptureBufferDescription bufferdescription = new CaptureBufferDescription(); if (null != mNotify) { mNotify.Dispose(); mNotify = null; } if (null != mRecBuffer) { mRecBuffer.Dispose(); mRecBuffer = null; } // 设定通知的大小,默认为1s钟 mNotifySize = (1024 > mWavFormat.AverageBytesPerSecond / 8) ? 1024 : (mWavFormat.AverageBytesPerSecond / 8); mNotifySize -= mNotifySize % mWavFormat.BlockAlign; // 设定缓冲区大小 mBufferSize = mNotifySize * cNotifyNum; // 创建缓冲区描述 bufferdescription.BufferBytes = mBufferSize; bufferdescription.Format = mWavFormat; // 创建缓冲区 mRecBuffer = new CaptureBuffer(bufferdescription, mCapDev); mNextCaptureOffset = 0; }
/// <summary> /// Worker thread. /// </summary> /// private void WorkerThread() { // Get the selected capture device DirectSoundCapture captureDevice = new DirectSoundCapture(device); // Set the capture format WaveFormat format = new WaveFormat(); format.Channels = 1; format.SamplesPerSecond = sampleRate; format.FormatTag = sampleFormat.ToWaveFormat(); format.BitsPerSample = (short)Signal.GetSampleSize(sampleFormat); format.BlockAlignment = (short)(format.BitsPerSample / 8); format.AverageBytesPerSecond = format.SamplesPerSecond * format.BlockAlignment; // Setup the capture buffer CaptureBufferDescription captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.Format = format; captureBufferDescription.BufferBytes = 2 * desiredCaptureSize * format.BlockAlignment; captureBufferDescription.WaveMapped = true; captureBufferDescription.ControlEffects = false; CaptureBuffer captureBuffer = null; NotificationPosition[] notifications = new NotificationPosition[2]; try { captureBuffer = new CaptureBuffer(captureDevice, captureBufferDescription); // Setup the notification positions int bufferPortionSize = captureBuffer.SizeInBytes / 2; notifications[0] = new NotificationPosition(); notifications[0].Offset = bufferPortionSize - 1; notifications[0].Event = new AutoResetEvent(false); notifications[1] = new NotificationPosition(); notifications[1].Offset = bufferPortionSize - 1 + bufferPortionSize; notifications[1].Event = new AutoResetEvent(false); captureBuffer.SetNotificationPositions(notifications); // Make a copy of the wait handles WaitHandle[] waitHandles = new WaitHandle[notifications.Length]; for (int i = 0; i < notifications.Length; i++) waitHandles[i] = notifications[i].Event; // Start capturing captureBuffer.Start(true); if (sampleFormat == SampleFormat.Format32BitIeeeFloat) { float[] currentSample = new float[desiredCaptureSize]; while (!stopEvent.WaitOne(0, true)) { int bufferPortionIndex = WaitHandle.WaitAny(waitHandles); captureBuffer.Read(currentSample, 0, currentSample.Length, bufferPortionSize * bufferPortionIndex); OnNewFrame(currentSample); } } else if (sampleFormat == SampleFormat.Format16Bit) { short[] currentSample = new short[desiredCaptureSize]; while (!stopEvent.WaitOne(0, true)) { int bufferPortionIndex = WaitHandle.WaitAny(waitHandles); captureBuffer.Read(currentSample, 0, currentSample.Length, bufferPortionSize * bufferPortionIndex); OnNewFrame(currentSample); } } } catch (Exception ex) { if (AudioSourceError != null) AudioSourceError(this, new AudioSourceErrorEventArgs(ex.Message)); else throw; } finally { if (captureBuffer != null) { captureBuffer.Stop(); captureBuffer.Dispose(); } if (captureDevice != null) captureDevice.Dispose(); for (int i = 0; i < notifications.Length; i++) if (notifications[i].Event != null) notifications[i].Event.Close(); } }
/// <summary> /// 创建录音服务对象 /// </summary> /// <param name="owner">宿主</param> /// <param name="deviceIndex">设备序号(0 - 默认设备)</param> /// <param name="channelCount">通道数</param> /// <param name="frequency">采样频率(次/秒)</param> /// <param name="sampleSize">样本尺寸(位/次)</param> /// <param name="bufferSectionTimeSpan">缓冲区片段的时间间隔</param> /// <param name="bufferSectionCount">缓冲区片段数</param> /// <param name="notificationEvent">通知点信号(工作线程等待此信号)</param> public SoundRecorder(Control owner, int deviceIndex, short channelCount, int frequency, short sampleSize, TimeSpan bufferSectionTimeSpan, int bufferSectionCount, AutoResetEvent notificationEvent) : base() { //宿主 this.Owner = owner; #region 设备 CaptureDevicesCollection devices = new CaptureDevicesCollection(); this.Device = new Capture(devices[deviceIndex].DriverGuid); #endregion #region 缓冲区描述 #region Wave格式 WaveFormat format = new WaveFormat(); format.FormatTag = WaveFormatTag.Pcm; //格式类型 format.Channels = channelCount; //通道数 format.SamplesPerSecond = frequency; //采样频率(次/秒) format.BitsPerSample = sampleSize; //样本尺寸(位/次) format.BlockAlign = (short)((format.BitsPerSample / 8) * format.Channels); //数据块的最小单元(字节/次) format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond; //采样性能(字节/秒) #endregion //缓冲区片段尺寸 int bufferSectionSize = format.AverageBytesPerSecond * (int)bufferSectionTimeSpan.TotalSeconds; //缓冲区尺寸 int bufferSize = bufferSectionSize * bufferSectionCount; //创建 CaptureBufferDescription bufferDescription = new CaptureBufferDescription(); bufferDescription.Format = format; bufferDescription.BufferBytes = bufferSize; this.BufferDescription = bufferDescription; #endregion #region 缓冲区位置通知序列 //通知点信号 this.NotificationEvent = notificationEvent; //位置通知序列 this.BufferPositionNotifys = new BufferPositionNotify[bufferSectionCount]; for (int i = 0; i < bufferSectionCount; i++) { this.BufferPositionNotifys[i].Offset = bufferSectionSize * (i + 1) - 1; //通知点 this.BufferPositionNotifys[i].EventNotifyHandle = this.NotificationEvent.SafeWaitHandle.DangerousGetHandle(); //通知点信号 Set() } #endregion #region 工作线程 this.ThreadWorking = true; this.WorkingThread = new Thread(new ParameterizedThreadStart(this.WorkingThreadProcess)); this.WorkingThread.IsBackground = true; this.WorkingThread.Start(this.NotificationEvent); //带入参数 #endregion }
/* * Initializes all the data members. */ private void Initialize() { try { device = new Device(); device.SetCooperativeLevel(this, CooperativeLevel.Normal); CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); DeviceInformation deviceInfo = captureDeviceCollection[0]; capture = new Capture(deviceInfo.DriverGuid); short channels = 1; //Stereo. short bitsPerSample = 16; //16Bit, alternatively use 8Bits. int samplesPerSecond = 22050; //11KHz use 11025 , 22KHz use 22050, 44KHz use 44100 etc. //Set up the wave format to be captured. waveFormat = new WaveFormat(); waveFormat.Channels = channels; waveFormat.FormatTag = WaveFormatTag.Pcm; waveFormat.SamplesPerSecond = samplesPerSecond; waveFormat.BitsPerSample = bitsPerSample; waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond; captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;//approx 200 milliseconds of PCM data. captureBufferDescription.Format = waveFormat; playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; playbackBufferDescription.Format = waveFormat; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device); bufferSize = captureBufferDescription.BufferBytes; bIsCallActive = false; nUdpClientFlag = 0; //Using UDP sockets clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); EndPoint ourEP = new IPEndPoint(IPAddress.Any, 1450); //Listen asynchronously on port 1450 for coming messages (Invite, Bye, etc). clientSocket.Bind(ourEP); //Receive data from any IP. EndPoint remoteEP = (EndPoint)(new IPEndPoint(IPAddress.Any, 0)); byteData = new byte[1024]; //Receive data asynchornously. clientSocket.BeginReceiveFrom(byteData, 0, byteData.Length, SocketFlags.None, ref remoteEP, new AsyncCallback(OnReceive), null); } catch (Exception ex) { MessageBox.Show(ex.Message, "VoiceChat-Initialize ()", MessageBoxButtons.OK, MessageBoxIcon.Error); } }
/// <summary> /// 创建缓冲区 /// </summary> private void CreateCaptureBuffer() { // 想要创建一个捕捉缓冲区必须要两个参数:缓冲区信息(描述这个缓冲区中的格式等),缓冲设备。 CaptureBufferDescription cbdBufDescription = new CaptureBufferDescription(); cbdBufDescription.Format = m_wavFormat; // 缓冲区捕捉的数据格式 // 1秒的数据量/设置的通知数 得到的每个通知大小小于0.2s的数据量,话音延迟小于200ms为优质话音 m_nNotifySize = m_wavFormat.AverageBytesPerSecond / m_nNotifyNum; m_nBufSize = m_nNotifyNum * m_nNotifySize; cbdBufDescription.BufferBytes = m_nBufSize; m_objCaptureBuf = new CaptureBuffer(cbdBufDescription, m_objCapture); }
public void Initialize() { try { LogLine("Getting local IP address..."); LocalIP.Text = NetProcedures.GetLocalIPAddress(); LogLine("Using global IP address..."); GlobalIP.Text = NetProcedures.globalIP; LogLine("Connecting to capturing device..."); device = new Device(); device.SetCooperativeLevel(this, CooperativeLevel.Normal); CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); DeviceInformation deviceInfo = captureDeviceCollection[0]; capture = new Capture(deviceInfo.DriverGuid); LogLine("Preparing audio format to be captured..."); short channels = (short)Channels.Value; short bitsPerSample; if (radioButton7.Checked) bitsPerSample = 8; else bitsPerSample = 16; int samplesPerSecond; if (radioButton1.Checked) samplesPerSecond = 11025; else if (radioButton2.Checked) samplesPerSecond = 22050; else samplesPerSecond = 44100; //Set up the wave format to be captured. waveFormat = new WaveFormat(); waveFormat.Channels = channels; waveFormat.FormatTag = WaveFormatTag.Pcm; waveFormat.SamplesPerSecond = samplesPerSecond; waveFormat.BitsPerSample = bitsPerSample; waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond; captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;//approx 200 milliseconds of PCM data. captureBufferDescription.Format = waveFormat; playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; playbackBufferDescription.Format = waveFormat; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device); bufferSize = captureBufferDescription.BufferBytes; bIsCallActive = false; nUdpClientFlag = 0; //Using UDP sockets LogLine("Initializing a socket..."); clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); EndPoint ourEP = new IPEndPoint(IPAddress.Any, 3535); clientSocket.Bind(ourEP); //Receive data from any IP. EndPoint remoteEP = (EndPoint)(new IPEndPoint(IPAddress.Any, 0)); byteData = new byte[1024]; //Receive data asynchornously. LogLine("Preparing to receive data..."); clientSocket.BeginReceiveFrom(byteData, 0, byteData.Length, SocketFlags.None, ref remoteEP, new AsyncCallback(OnReceive), null); } catch (Exception ex) { MessageBox.Show(ex.Message, "Ошибка инициализации | Fenazy", MessageBoxButtons.OK, MessageBoxIcon.Error); } }
public void ConfigureSoundDevice(short channels, Control appForm, short bitsPerSample, int samplesPerSecond) { this.cooperativeForm = appForm; RefreshSoundDevice(); waveFormat = new WaveFormat(); waveFormat.Channels = channels; waveFormat.FormatTag = WaveFormatTag.Pcm; waveFormat.SamplesPerSecond = samplesPerSecond; waveFormat.BitsPerSample = bitsPerSample; waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond; captureBufferDescription = new CaptureBufferDescription(); captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; captureBufferDescription.Format = waveFormat; playbackBufferDescription = new BufferDescription(); playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; playbackBufferDescription.Format = waveFormat; playbackBuffer = new SecondaryBuffer(playbackBufferDescription, new Device()); bufferSize = captureBufferDescription.BufferBytes; }
static void InicialiceCaptureBuffer() { try { CaptureDevicesCollection audioDevices = new CaptureDevicesCollection(); // initialize the capture buffer and start the animation thread Capture cap = new Capture(audioDevices[1].DriverGuid); CaptureBufferDescription desc = new CaptureBufferDescription(); WaveFormat wf = new WaveFormat(); wf.BitsPerSample = 16; wf.SamplesPerSecond = 44100; wf.Channels = (short)cap.Caps.Channels; wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8); wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond; wf.FormatTag = WaveFormatTag.Pcm; desc.Format = wf; desc.BufferBytes = SAMPLES * wf.BlockAlign; buffer = new CaptureBuffer(desc, cap); buffer.Start(true); } catch { Console.WriteLine("Error al iniciar el capturador de sonido"); } }
public bool StartCodec(ref string strFault) { bool functionReturnValue = false; //Returns true if successful Thread.Sleep(100); // This delay is necessary for reliable starup following a StopCodec lock (objCodecLock) { dttLastSoundCardSample = Now; bool blnSpectrumSave = MCB.DisplaySpectrum; bool blnWaterfallSave = MCB.DisplayWaterfall; System.DateTime dttStartWait = Now; MCB.DisplayWaterfall = false; MCB.DisplaySpectrum = false; string[] strCaptureDevices = EnumerateCaptureDevices(); string[] strPlaybackDevices = EnumeratePlaybackDevices(); functionReturnValue = false; DeviceInformation objDI = new DeviceInformation(); int intPtr = 0; // Playback devices try { cllPlaybackDevices = null; cllPlaybackDevices = new Microsoft.DirectX.DirectSound.DevicesCollection(); if ((devSelectedPlaybackDevice != null)) { devSelectedPlaybackDevice.Dispose(); devSelectedPlaybackDevice = null; } foreach (DeviceInformation objDI in cllPlaybackDevices) { DeviceDescription objDD = new DeviceDescription(objDI); if (strPlaybackDevices(intPtr) == MCB.PlaybackDevice) { if (MCB.DebugLog) Logs.WriteDebug("[Main.StartCodec] Setting SelectedPlaybackDevice = " + MCB.PlaybackDevice); devSelectedPlaybackDevice = new Device(objDD.info.DriverGuid); functionReturnValue = true; break; // TODO: might not be correct. Was : Exit For } intPtr += 1; } if (!functionReturnValue) { strFault = "Playback Device setup, Device " + MCB.PlaybackDevice + " not found in Windows enumerated Playback Devices"; } } catch (Exception ex) { strFault = Err.Number.ToString + "/" + Err.Description; Logs.Exception("[StartCodec], Playback Device setup] Err: " + ex.ToString); functionReturnValue = false; } if (functionReturnValue) { // Capture Device CaptureBufferDescription dscheckboxd = new CaptureBufferDescription(); try { functionReturnValue = false; cllCaptureDevices = null; cllCaptureDevices = new CaptureDevicesCollection(); intPtr = 0; for (int i = 0; i <= cllCaptureDevices.Count - 1; i++) { if (MCB.CaptureDevice == strCaptureDevices(i)) { objCaptureDeviceGuid = cllCaptureDevices(i).DriverGuid; devCaptureDevice = new Capture(objCaptureDeviceGuid); stcSCFormat.SamplesPerSecond = 12000; // 12000 Hz sample rate stcSCFormat.Channels = 1; stcSCFormat.BitsPerSample = 16; stcSCFormat.BlockAlign = 2; stcSCFormat.AverageBytesPerSecond = 2 * 12000; stcSCFormat.FormatTag = WaveFormatTag.Pcm; objApplicationNotify = null; objCapture = null; // Set the buffer sizes intCaptureBufferSize = intNotifySize * intNumberRecordNotifications; // Create the capture buffer dscheckboxd.BufferBytes = intCaptureBufferSize; stcSCFormat.FormatTag = WaveFormatTag.Pcm; dscheckboxd.Format = stcSCFormat; // Set the format during creatation if ((objCapture != null)) { objCapture.Dispose(); objCapture = null; } //objCapture = New CaptureBuffer(dscheckboxd, devCaptureDevice) intNextCaptureOffset = 0; WriteTextToSpectrum("CODEC Start OK", Brushes.LightGreen); while (Now.Subtract(dttStartWait).TotalSeconds < 3) { Application.DoEvents(); Thread.Sleep(100); } objCapture = new CaptureBuffer(dscheckboxd, devCaptureDevice); InititializeNotifications(); objCapture.Start(true); // start with looping InititializeSpectrum(Color.Black); functionReturnValue = true; } } if (!functionReturnValue) { strFault = "Could not find DirectSound capture device " + MCB.CaptureDevice.ToUpper; //Logs.Exception("[Main.StartCodec] Could not find DirectSound capture device " & MCB.CaptureDevice & " in Windows enumerated Capture Devices") } } catch (Exception ex) { strFault = Err.Number.ToString + "/" + Err.Description; functionReturnValue = false; //Logs.Exception("[Main.StartCodec] Err: " & ex.ToString) } } if (functionReturnValue) { if (MCB.DebugLog) Logs.WriteDebug("[Main.StartCodec] Successful start of codec"); objProtocol.ARDOPProtocolState = ProtocolState.DISC; } else { if (MCB.DebugLog) Logs.WriteDebug("[Main.StartCodec] CODEC Start Failed"); WriteTextToSpectrum("CODEC Start Failed", Brushes.Red); objProtocol.ARDOPProtocolState = ProtocolState.OFFLINE; while (Now.Subtract(dttStartWait).TotalSeconds < 3) { Application.DoEvents(); Thread.Sleep(100); } tmrStartCODEC.Interval = 5000; tmrStartCODEC.Start(); } InititializeSpectrum(Color.Black); MCB.DisplayWaterfall = blnWaterfallSave; MCB.DisplaySpectrum = blnSpectrumSave; } return functionReturnValue; }
private void CreateCaptureBuffer() { //想要创建一个捕捉缓冲区必须要两个参数:缓冲区信息(描述这个缓冲区中的格式等),缓冲设备。 CaptureBufferDescription bufferdescription = new CaptureBufferDescription(); bufferdescription.Format = mWavFormat;//设置缓冲区要捕捉的数据格式 iNotifySize = 1024;//设置通知大小 iBufferSize = iNotifyNum * iNotifySize; bufferdescription.BufferBytes = iBufferSize; capturebuffer = new CaptureBuffer(bufferdescription, capture);//建立设备缓冲区对象 }
// Helper method to test a specific WaveFormat instance. private void VerifyFormat(WaveFormat newFormat) { if (this._captureDevice == null) { throw new InvalidOperationException("Capture device is null."); } CaptureBufferDescription capBuffDesc = new CaptureBufferDescription(); capBuffDesc.BufferBytes = newFormat.AverageBytesPerSecond; capBuffDesc.Format = newFormat; CaptureBuffer capBuff = null; try { capBuff = new CaptureBuffer(capBuffDesc, this._captureDevice); } catch (Exception ex) { string errMsg = string.Format("Sound format not supported: {0} samples/sec, {1} bits/sample, {2} channels.", newFormat.SamplesPerSecond, newFormat.BitsPerSample, newFormat.Channels); throw new Exception(errMsg, ex); } if (capBuff != null) { capBuff.Dispose(); capBuff = null; } }
public void CreateCaptureBuffer() { // 想要創建一個捕捉緩衝區必须要兩個參數:缓衝區信息(描述這個緩衝區中的格式等),緩衝設備。 mWavFormat = SetWaveFormat(); // 先設定waveformat格式 CaptureBufferDescription bufferdescription = new CaptureBufferDescription(); bufferdescription.Format = mWavFormat; // 設置缓衝區要捕捉的數據格式 //iNotifySize = 1024; // 設置通知大小 iNotifySize = mWavFormat.AverageBytesPerSecond / iNotifyNum; // 1秒的數據量 / 設置的通知數得到的每個通知大小小於0.2s的數據量,語音延遲小於200ms為優質語音 iBufferSize = iNotifyNum * iNotifySize; bufferdescription.BufferBytes = iBufferSize; bufferdescription.ControlEffects = true; bufferdescription.WaveMapped = true; capturebuffer = new CaptureBuffer(bufferdescription, capture); // 建立設備緩衝區對象 }