在控制台应用程序中使用 NAudio 录制麦克风音频

Question

我的代码运行并创建一个 test.wav 但该文件不包含任何内容。我正在尝试在控制台应用程序中运行此代码。请帮忙

        using System;
        using System.Media;
        using NAudio;
        using NAudio.Wave;

        class sound
        {
            public static void Main()
            {
                WaveInCapabilities deviceInfo = WaveIn.GetCapabilities(0);
                Console.WriteLine("Now recording...");
                WaveInEvent waveSource = new WaveInEvent();
                waveSource.DeviceNumber = 0;
                waveSource.WaveFormat = new WaveFormat(16000, deviceInfo.Channels);

                //waveSource.DataAvailable += new EventHandler<WaveInEventArgs>(waveSource_DataAvailable);

                string tempFile = (@"C:\Users\user\Desktop\test1.wav");
                WaveFileWriter waveFile = new WaveFileWriter(tempFile, waveSource.WaveFormat);
                waveSource.StartRecording();

            }

            //void waveInStream_DataAvailable(object sender, WaveInEventArgs e)
            //{
            //    wavefile.WriteData(e.Buffer, 0, e.BytesRecorded);
            //}

        }

有人可以解释一下注释的行是什么意思吗？我是编程初学者。

当我编译程序时，出现 2 个错误： 错误 1：非静态字段、方法或属性“sound.waveSource_DataAvailable(object, NAudio.Wave.WaveInEventArgs)”需要对象引用 C:\Users\user\文件\Visual Studio 2008\项目\声音\声音\Program.cs 18 49 声音

错误 2 当前上下文中不存在名称“wavefile” C:\Users\user\Documents\Visual Studio 2008\Projects\sound\sound\Program.cs 28 21 sound

Answer 1

尝试这个：

using System;
using System.Media;
using NAudio;
using NAudio.Wave;

class sound
    {
        static WaveFileWriter waveFile;
        public static void Main()
        {
            //WaveInCapabilities deviceInfo = WaveIn.GetCapabilities(0);
            Console.WriteLine("Now recording...");
            WaveInEvent waveSource = new WaveInEvent();
            //waveSource.DeviceNumber = 0;
            waveSource.WaveFormat = new WaveFormat(44100, 1);

            waveSource.DataAvailable += new EventHandler<WaveInEventArgs>(waveSource_DataAvailable);

            string tempFile = (@"C:\Users\user\Desktop\test1.wav");
            waveFile = new WaveFileWriter(tempFile, waveSource.WaveFormat);
            waveSource.StartRecording();
            Console.WriteLine("Press enter to stop");
            Console.ReadLine();
            waveSource.StopRecording();
            waveFile.Dispose();
        }

        static void waveSource_DataAvailable(object sender, WaveInEventArgs e)
        {
            waveFile.WriteData(e.Buffer, 0, e.BytesRecorded);
        }

    }