使用winmm.dll 获取麦克风声音数据-白红宇

使用winmm.dll 获取麦克风声音数据

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发布时间：2019-06-14

本文共 3546 字，大约阅读时间需要 11 分钟。

//录音        ///         /// 初始化录音环境        /// 
        /// 
             public static bool InitalDevice()        {            durLength = "";            durLength = durLength.PadLeft(128, Convert.ToChar(" "));//11025            ilong = APIClass.mciSendString("set media bitpersample 8", durLength, durLength.Length, 0);            ilong = APIClass.mciSendString("set media samplespersec 11025", durLength, durLength.Length, 0);            ilong = APIClass.mciSendString("set media channels 2", durLength, durLength.Length, 0);            ilong = APIClass.mciSendString("set media format tag pcm", durLength, durLength.Length, 0);            return true;        }        ///         /// 开始录音        /// 
        /// 
             public static bool BeginRecord()        {            durLength = "";            durLength = durLength.PadLeft(128, Convert.ToChar(" "));            ilong = APIClass.mciSendString("close My", durLength, durLength.Length, 0);            try            {                ilong = APIClass.mciSendString("open new type waveaudio alias My", durLength, durLength.Length, 0);                ilong = APIClass.mciSendString("record My", durLength, durLength.Length, 0);            }            catch (Exception ex)            {                ex.Message.ToString();            }            return true;        }        ///         /// 保存录音        /// 
        /// 保存路径        public static void SaveMusic(string path)        {            durLength = "";            durLength = durLength.PadLeft(128, Convert.ToChar(" "));            try            {                ilong = APIClass.mciSendString("save My " + path, durLength, durLength.Length, 0);                APIClass.mciSendString("close My", durLength, durLength.Length, 0);            }            catch (Exception ex)            {                ex.Message.ToString();            }        }        ///         /// 停止录音        /// 
        public void StopRecord()        {            durLength = "";            durLength = durLength.PadLeft(128, Convert.ToChar(" "));            try            {                APIClass.mciSendString("stop My", durLength, durLength.Length, 0);            }            catch (Exception ex)            {                ex.Message.ToString();            }        }        ///         /// 暂停录音        /// 
        public void PauseRecord()        {            durLength = "";            durLength = durLength.PadLeft(128, Convert.ToChar(" "));            try            {                APIClass.mciSendString("pause My", durLength, durLength.Length, 0);            }            catch (Exception ex)            {                ex.Message.ToString();            }        }        ///         /// 继续录音        /// 
        public void ResumeRecord()        {            durLength = "";            durLength = durLength.PadLeft(128, Convert.ToChar(" "));            try            {                APIClass.mciSendString("resume My", durLength, durLength.Length, 0);            }            catch (Exception ex)            {                ex.Message.ToString();            }        }public class APIClass    {        [DllImport("kernel32.dll", CharSet = CharSet.Auto)]        public static extern int GetShortPathName(string lpszLongPath, string shortFile, int cchBuffer);        [DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)]        public static extern int mciSendString(string lpstrCommand, string lpstrReturnString, int uReturnLength, int hwndCallback);    }