录音我一般更喜欢mci方式，当然也有另一种方式及DirectSound不过它会麻烦许多
但是它却有一个让我感到较好的特点，首先可以选择录音设备源，第二它不像mci
必须要写到本地磁盘，它是把录制音频流存放在内存中，在速度上我认为它会快很
多，不过它也有一个缺点让我不舒服，它不如mci哪样是默认集成在系统中的，我这
个人特喜欢使用系统自带的函数，主要你不需要去拷贝DLL因为系统是默认就有的，
只需要去调用就行了，方便 当然mci提供的操作命令我比较讨厌mciSendCommand
原因在于我自己得写一大堆结构体 是让我感到非常讨厌的，mciSendString则是通过
字符串，属于轻量操作函数我倒是喜欢的紧。
private SoundRecord m_Record = new SoundRecord();private void MainForm_Load(object sender, EventArgs e){this.m_Record.OpenRecord(); // 打开录音this.m_Record.StartRecord(); // 开始录音}private void BtnStopAndSave_Click(object sender, EventArgs e){this.m_Record.StopRecord(); // 停止录音this.m_Record.SaveRecord(@"C:\Users\windo\Desktop\1.wav"); // 保存录音this.m_Record.CloseRecord(); // 关闭录音}上面的代码只是一个简单的录音并保存的过程，，不过该类本身就很简单 而且我也附
有注释，想必你们应该不会感到学习困难，录音属性配置默认初始化在构造函数中。
public partial class SoundRecord{[DllImport("WinMm.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.Cdecl)]private static extern int mciSendString(string lpstrCommand, string lpstrReturnString, int uReturnLength, int hwndCallback);private const int ERROR_SUCCESS = 0;private const string MODE_UNKNOWN = "unknown";private static bool mciSendString(string strCommand){return mciSendString(strCommand, null, 0, 0) != ERROR_SUCCESS;}}public partial class SoundRecord{private int m_channels;private int m_sample_spersec;private string m_format_tag;private int m_bits_per_sample;public SoundRecord(){this.Channels = 2;this.FormatTag = "pcm";this.BitsPerSample = 8;this.SampleSpersec = 11025;}// 采样位数public virtual int BitsPerSample{set{if (mciSendString("set wave bitpersample " + value))this.m_bits_per_sample = value;}get{return this.m_bits_per_sample;}}// 采样频率public virtual int SampleSpersec{get{return this.m_sample_spersec;}set{if (mciSendString("set wave samplespersec " + value))this.m_sample_spersec = value;}}// 声道public virtual int Channels{get{return m_channels;}set{if (mciSendString("set wave channels " + value))this.m_channels = value;}}// 格式标签public virtual string FormatTag{get{return this.m_format_tag;}set{if (mciSendString("set wave format tag " + value))this.m_format_tag = value;}}// 打开录音public virtual bool OpenRecord(){return mciSendString("open new type waveaudio alias movie");}// 开始录音public virtual bool StartRecord(){return mciSendString("record movie");}// 停止录音public virtual bool StopRecord(){return mciSendString("stop movie");}// 保存录音public virtual bool SaveRecord(string saveFileName){return mciSendString("save movie " + saveFileName);}// 关闭录音public virtual bool CloseRecord(){return mciSendString("close movie");}// 暂停录音public virtual bool PauseRecord(){return mciSendString("pause movie");}// 恢复录音public virtual bool ResumeRecord(){return mciSendString("resume movie");}// 执行状态public virtual string Status{get{string strBuffer = new string('\0', 12);if (mciSendString("status movie mode", strBuffer, 12, 0) != ERROR_SUCCESS)return MODE_UNKNOWN;if ((strBuffer = strBuffer.Remove(strBuffer.IndexOf('\0'))).Length <= 0)return MODE_UNKNOWN;return strBuffer;}}}
望着它们，我睡着了。今天已经过去——我生命中所有天中的一天，
