C# Wave.WaveFileWriter类代码示例

 //Кнопка "Запись"
 private void button_rec_Click(object sender, EventArgs e)
 {
     button_stop.Enabled = true;
     timer.Start();
     ind = 1;
     try
     {
         waveIn = new WaveIn();
         waveIn.DeviceNumber = 0;//Дефолтное устройство для записи (если оно имеется)
         waveIn.DataAvailable += waveIn_DataAvailable;//Прикрепляем к событию DataAvailable обработчик, возникающий при наличии записываемых данных
         waveIn.RecordingStopped += waveIn_RecordingStopped;//Прикрепляем обработчик завершения записи
         waveIn.WaveFormat = new WaveFormat(8000, 1);//Формат wav-файла - принимает параметры - частоту дискретизации и количество каналов(здесь mono)
         writer = new WaveFileWriter(outputFilename, waveIn.WaveFormat);//Инициализируем объект WaveFileWriter
         waveIn.StartRecording();//Начало записи
         button_play.Enabled = false;
         button_rec.Enabled = false;
         numeric.Enabled = false;
     }
     catch (Exception ex)
     {
         button_play.Enabled = true;
         button_rec.Enabled = true;
         numeric.Enabled = true;
         MessageBox.Show(ex.Message);
     }
 }

        public Recorder()
        {
            int waveInDevices = WaveIn.DeviceCount;

            //for (int waveInDevice = 0; waveInDevice < waveInDevices; waveInDevice++)
            //{
            //    WaveInCapabilities deviceInfo = WaveIn.GetCapabilities(waveInDevice);
            //    comboBox1.Items.Add(string.Format("Device {0}: {1}, {2} channels", waveInDevice, deviceInfo.ProductName, deviceInfo.Channels));
            //}

            waveIn = new WaveIn();
            waveIn.DeviceNumber = 0;
            waveIn.DataAvailable += waveIn_DataAvailable;
            waveIn.RecordingStopped += waveIn_RecordingStopped;

            int sampleRate = 16000; // 16 kHz
            int channels = 1; // mono
            int bits = 16;

            recordingFormat = new WaveFormat(sampleRate, bits, channels);
            waveIn.WaveFormat = recordingFormat;

            string path = "C:\\temp";
            if( !Directory.Exists(path) )
            {
                Directory.CreateDirectory(path);
            }

            TempWavFileName = String.Format("{0}\\{1}.wav", path, Guid.NewGuid().ToString());

            writer = new WaveFileWriter(TempWavFileName, recordingFormat);
        }

        static void Main(string[] args)
        {
            // for recording
            waveFileWriter = new WaveFileWriter(@"C:\rec\out.wav", new WaveFormat(44100, 2));

            var sound = new MySound();
            sound.SetWaveFormat(44100, 2);
            sound.init();
            waveOut = new WaveOut();
            waveOut.Init(sound);
            waveOut.Play();

            ConsoleKeyInfo keyInfo;
            bool loop = true;
            while (loop)
            {
                keyInfo = Console.ReadKey();
                if (keyInfo.Key == ConsoleKey.Q)
                {
                    waveOut.Stop();
                    waveOut.Dispose();
                    waveFileWriter.Close();
                    waveFileWriter.Dispose();
                    loop = false;
                }
            }
        }

        /// <summary>
        /// Merge multiple .wav files together and save the output.
        /// </summary>
        /// <param name="outputFile">The path to save the output to.</param>
        /// <param name="sourceFiles">An IEnumerable list of files to merge.</param>
        private static void ConcatenateWav(string outputFile, IEnumerable<string> sourceFiles) {
            byte[] buffer = new byte[1024];
            WaveFileWriter waveFileWriter = null;
            
            try {
                foreach (string sourceFile in sourceFiles) {
                    using (WaveFileReader reader = new WaveFileReader(sourceFile)) {
                        if (waveFileWriter == null) {
                            // first time in create new Writer
                            waveFileWriter = new WaveFileWriter(outputFile, reader.WaveFormat);
                        }
                        else {
                            if (!reader.WaveFormat.Equals(waveFileWriter.WaveFormat)) {
                                throw new InvalidOperationException("Can't concatenate WAV Files that don't share the same format");
                            }
                        }

                        int read;
                        while ((read = reader.Read(buffer, 0, buffer.Length)) > 0) {
                            waveFileWriter.WriteData(buffer, 0, read);
                        }
                    }
                }
            }
            finally {
                if (waveFileWriter != null) {
                    waveFileWriter.Dispose();
                }
            }

        }

 public void ReaderShouldReadBackSameDataWrittenWithWrite()
 {
     var ms = new MemoryStream();
     var testSequence = new byte[] { 0x1, 0x2, 0xFF, 0xFE };
     using (var writer = new WaveFileWriter(new IgnoreDisposeStream(ms), new WaveFormat(16000, 24, 1)))
     {
         writer.Write(testSequence, 0, testSequence.Length);
     }
     // check the Reader can read it
     ms.Position = 0;
     using (var reader = new WaveFileReader(ms))
     {
         Assert.AreEqual(16000, reader.WaveFormat.SampleRate, "Sample Rate");
         Assert.AreEqual(24, reader.WaveFormat.BitsPerSample, "Bits Per Sample");
         Assert.AreEqual(1, reader.WaveFormat.Channels, "Channels");
         Assert.AreEqual(testSequence.Length, reader.Length, "File Length");
         var buffer = new byte[600]; // 24 bit audio, block align is 3
         int read = reader.Read(buffer, 0, buffer.Length);
         Assert.AreEqual(testSequence.Length, read, "Data Length");
         for (int n = 0; n < read; n++)
         {
             Assert.AreEqual(testSequence[n], buffer[n], "Byte " + n);
         }
     }
 }

 public void FlushUpdatesHeaderEvenIfDisposeNotCalled()
 {
     var ms = new MemoryStream();
     var testSequence = new byte[] { 0x1, 0x2, 0xFF, 0xFE };
     var testSequence2 = new byte[] { 0x3, 0x4, 0x5 };
     var writer = new WaveFileWriter(new IgnoreDisposeStream(ms), new WaveFormat(16000, 24, 1));
     writer.Write(testSequence, 0, testSequence.Length);
     writer.Flush();
     // BUT NOT DISPOSED
     // another write that was not flushed
     writer.Write(testSequence2, 0, testSequence2.Length);
     
     // check the Reader can read it
     ms.Position = 0;
     using (var reader = new WaveFileReader(ms))
     {
         Assert.AreEqual(16000, reader.WaveFormat.SampleRate, "Sample Rate");
         Assert.AreEqual(24, reader.WaveFormat.BitsPerSample, "Bits Per Sample");
         Assert.AreEqual(1, reader.WaveFormat.Channels, "Channels");
         Assert.AreEqual(testSequence.Length, reader.Length, "File Length");
         var buffer = new byte[600]; // 24 bit audio, block align is 3
         int read = reader.Read(buffer, 0, buffer.Length);
         Assert.AreEqual(testSequence.Length, read, "Data Length");
         
         for (int n = 0; n < read; n++)
         {
             Assert.AreEqual(testSequence[n], buffer[n], "Byte " + n);
         }
     }
     writer.Dispose(); // to stop the finalizer from moaning
 }

        private void sourceStreamDataAvailable(object sender, WaveInEventArgs e)
        {
            string path = outputPath + "wavsam" + nFiles + ".wav";
            writer = new WaveFileWriter(path, waveFormat);
            writer.Write(e.Buffer, 0, e.Buffer.Length);
            writer.Flush();
            writer.Close();
            nFiles++;

            Process process = new Process();
            process.StartInfo.CreateNoWindow = true;
            process.StartInfo.UseShellExecute = false;
            process.StartInfo.FileName = "praatcon.exe";
            String male;
            if (isMale) male = "yes"; else male = "no";
            process.StartInfo.Arguments = "extract_measures.praat " + path + " " + male;
               // process.StartInfo.RedirectStandardOutput = true;

            process.Start();

            process.WaitForExit();

            ResultEventArgs args = new ResultEventArgs();
              //      args.text = output;
            OnResults(args);
               // args.nWords = err.Length;
        }

		public async Task Transcode(CancellationToken ct, IWaveStreamProvider stream, Stream targetStream)
		{
			using (var fileWriter = new NAudio.Wave.WaveFileWriter(targetStream, stream.WaveFormat))
			{
				await stream.Stream.CopyToAsync(fileWriter);
			}
		}

 public void CanDownsampleAnMp3File()
 {
     string testFile = @"D:\Audio\Music\Coldplay\Mylo Xyloto\03 - Paradise.mp3";
     if (!File.Exists(testFile)) Assert.Ignore(testFile);
     string outFile = @"d:\test22.wav";
     using (var reader = new AudioFileReader(testFile))
     {
         // downsample to 22kHz
         var resampler = new WdlResamplingSampleProvider(reader, 22050);
         var wp = new SampleToWaveProvider(resampler);
         using (var writer = new WaveFileWriter(outFile, wp.WaveFormat))
         {
             byte[] b = new byte[wp.WaveFormat.AverageBytesPerSecond];
             while (true)
             {
                 int read = wp.Read(b, 0, b.Length);
                 if (read > 0)
                     writer.Write(b, 0, read);
                 else
                     break;
             }
         }
         //WaveFileWriter.CreateWaveFile(outFile, );
     }
 }

 private void ConvertWavTo10SecondWavs(FileInfo inputFile)
 {
     var samplesOutWav = @"..\..\..\samples\wav10seconds\";
     using (var inAudio = new WaveFileReader(inputFile.FullName))
     {
         //Calculate required byte[] buffer.
         var buffer = new byte[10*inAudio.WaveFormat.AverageBytesPerSecond];//Assume average will be constant for WAV format.
         int index = 0;
         do
         {
             var outFile = string.Format("{0}{1}.{2:0000}.wav",
             samplesOutWav, inputFile.Name.Replace(inputFile.Extension, string.Empty), index);
             int bytesRead = 0;
             do
             {
                 bytesRead = inAudio.Read(buffer, 0, buffer.Length - bytesRead);
             } while (bytesRead > 0 && bytesRead < buffer.Length);
             //Write new file
             using (var waveWriter = new WaveFileWriter(outFile, inAudio.WaveFormat))
             {
                 waveWriter.Write(buffer, 0, buffer.Length);
             }
             index++;
         } while (inAudio.Position < inAudio.Length);
     }
 }

        private void buttonStartRecording_Click(object sender, EventArgs e)
        {
            if (waveIn == null)
            {
                if(outputFilename == null)
                {
                    buttonSelectOutputFile_Click(sender, e);
                }
                if(outputFilename == null)
                {
                    return;
                }
                if (radioButtonWaveIn.Checked)
                {
                    waveIn = new WaveIn();
                    waveIn.WaveFormat = new WaveFormat(8000, 1);
                }
                else
                {
                    waveIn = new WasapiCapture((MMDevice)comboDevices.SelectedItem);
                    // go with the default format as WASAPI doesn't support SRC
                }

                writer = new WaveFileWriter(outputFilename, waveIn.WaveFormat);

                waveIn.DataAvailable += new EventHandler<WaveInEventArgs>(waveIn_DataAvailable);
                waveIn.RecordingStopped += new EventHandler(waveIn_RecordingStopped);
                waveIn.StartRecording();
                buttonStartRecording.Enabled = false;
            }
        }

        public static void RecordSound(string name)
        {
            int waveDeviceCount = WaveIn.DeviceCount;
            //detect presence of recording hardware
            if (waveDeviceCount > 0)
            {
                inputDevice = 0;
            }
            else
            {
                MessageBox.Show("No recording hardware detected", "iMasomoAdmin", MessageBoxButton.OK, MessageBoxImage.Error);
                return;
            }

            wordName = name;
            try
            {
                
                waveIn = new WaveIn();
                waveIn.DeviceNumber = inputDevice;
                waveIn.WaveFormat = new NAudio.Wave.WaveFormat(44100, WaveIn.GetCapabilities(inputDevice).Channels);

                //in the presence of incoming data, write the data to a buffer
                waveIn.DataAvailable += waveIn_DataAvailable;
                waveWriter = new WaveFileWriter(Environment.CurrentDirectory + @"\Media\" + wordName + ".wav", waveIn.WaveFormat);
                waveIn.StartRecording();
                
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            
        }

 private void Processing()
 {
     try
     {
         using (var waveWriterYour = new WaveFileWriter(@"F:\Desktop\\Recordshit\\" + Environment.UserName + " - " + DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss-fff") + ".wav", new WaveFormat(48000, 16, 2)))
         while (true)
         {
             byte[] bufBytes;
             if (BufferCollection.TryTake(out bufBytes, Timeout.Infinite))
             {
                 if (bufBytes.Length == 0 || !_socketClient.Connected)
                     break;
                 _socketClient.Send(bufBytes);
                 waveWriterYour.Write(bufBytes, 0, bufBytes.Length);
                 waveWriterYour.Flush();
             }
             else
             {
                 break;
             }
         }
     }
     catch (Exception e)
     {
     }
 }

        public Form1()
        {
            if (save)
                writer = new WaveFileWriter("test.wav", new WaveFormat(44100, 1));
            Control.CheckForIllegalCrossThreadCalls = false;
            //35
            //40-60
            //60-100
            //100-300
            //600-900
            //900-1800
            //1800-3500
            //3500-7500
            //7500-12000
            //12000-18000
            //18000
            var filters = new EqualizerFilters();
            table = new float[filters.Filters.Count];
            for (int i = 0; i < table.Length; i++)
                table[i] = 1;
            solver = new FIRSolver2(OpenCLNet.OpenCL.GetPlatform(0), filters.Filters, 2048);
            solver.SetMulTable(table);

            InitializeComponent();

            asio = new Asio.Asio(Asio.Asio.InstalledDrivers.ElementAt(0));
            asio.ProcessAudio = ProcessAudio;
            var asioThread = new Thread(new ThreadStart(asio.Start));
            asioThread.IsBackground = true;
            asioThread.Priority = ThreadPriority.Highest;
            asioThread.Start();
        }

 public AudioRecorder(int microphone)
 {
     waveIn = new WaveIn();
     waveIn.DeviceNumber = microphone;
     waveIn.WaveFormat = new WaveFormat(44100, 1);
     bufferedWaveProvider = new BufferedWaveProvider(waveIn.WaveFormat);
     writer = new WaveFileWriter(Settings.Default.tempSoundLocation, waveIn.WaveFormat);
 }