C# NAudio 錄音

RT，錄音並保存成wav格式的文件，本來是想用DirectX，但是找了好多資料都無法正常錄音，只能用別的方法了，然后就找到了NAudio

下載地址 http://naudio.codeplex.com/

下面上在網上找的例子里面的關鍵類

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LuYinC.Recorder
{
    public interface ISpeechRecorder
    {
        void SetFileName(string fileName);
        void StartRec();
        void StopRec();
    }
}

 

using NAudio.Wave;
using System;

namespace LuYinC.Recorder
{
    class NAudioRecorder : ISpeechRecorder
    {
        public WaveIn waveSource = null;
        public WaveFileWriter waveFile = null;
        private string fileName = string.Empty;

        /// <summary>
        /// 開始錄音
        /// </summary>
        public void StartRec()
        {
            waveSource = new WaveIn();
            waveSource.WaveFormat = new WaveFormat(16000, 16, 1); // 16bit,16KHz,Mono的錄音格式

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

            waveFile = new WaveFileWriter(fileName, waveSource.WaveFormat);

            waveSource.StartRecording();
        }

        /// <summary>
        /// 停止錄音
        /// </summary>
        public void StopRec()
        {
            waveSource.StopRecording();

            // Close Wave(Not needed under synchronous situation)
            if (waveSource != null)
            {
                waveSource.Dispose();
                waveSource = null;
            }

            if (waveFile != null)
            {
                waveFile.Dispose();
                waveFile = null;
            }
        }

        /// <summary>
        /// 錄音結束后保存的文件路徑
        /// </summary>
        /// <param name="fileName">保存wav文件的路徑名</param>
        public void SetFileName(string fileName)
        {
            this.fileName = fileName;
        }

        /// <summary>
        /// 開始錄音回調函數
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void waveSource_DataAvailable(object sender, WaveInEventArgs e)
        {
            if (waveFile != null)
            {
                waveFile.Write(e.Buffer, 0, e.BytesRecorded);
                waveFile.Flush();
            }
        }

        /// <summary>
        /// 錄音結束回調函數
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void waveSource_RecordingStopped(object sender, StoppedEventArgs e)
        {
            if (waveSource != null)
            {
                waveSource.Dispose();
                waveSource = null;
            }

            if (waveFile != null)
            {
                waveFile.Dispose();
                waveFile = null;
            }
        }
    }
}

調用方法：

recorder = new NAudioRecorder();

//開始錄音
recorder.SetFileName("record.wav");
recorder.StartRec();

//結束錄音
recorder.StopRec();

 

以下是我下載好的NAudio.dll文件，不知道怎么直接放上來文件包，只能發一個百度網盤的連接了

 鏈接：https://pan.baidu.com/s/1hundpEs 密碼：i1m2