使用.net多次播放wav文件异步

Question

我有一个应用程序,我需要在按下一个键时播放一个wav文件,我使用SoundPlayer类,但如果按下一个新键时正在播放另一个声音,它会停止声音再次播放它使它看起来很难看. ...

有没有办法再次播放相同的声音,即使有另一个播放？

谢谢!

Answer 1

使用PlaySound在用这种组合窗API SND_ASYNC和SND_NOSTOP标志.

http://www.pinvoke.net/default.aspx/winmm.playsound

用法

//And the actual usage
PlaySound (fileName, UIntPtr.Zero, (uint)(SoundFlags.SND_FILENAME | SoundFlags.SND_ASYNC | SoundFlags.SND_NOSTOP));

声明

[Flags]
public enum SoundFlags
{
    /// <summary>play synchronously (default)</summary>
    SND_SYNC = 0x0000,    
    /// <summary>play asynchronously</summary>
    SND_ASYNC = 0x0001,
    /// <summary>silence (!default) if sound not found</summary>
    SND_NODEFAULT = 0x0002,
    /// <summary>pszSound points to a memory file</summary>
    SND_MEMORY = 0x0004,
    /// <summary>loop the sound until next sndPlaySound</summary>
    SND_LOOP = 0x0008,    
    /// <summary>don't stop any currently playing sound</summary>
    SND_NOSTOP = 0x0010,
    /// <summary>Stop Playing Wave</summary>
    SND_PURGE = 0x40,
    /// <summary>don't wait if the driver is busy</summary>
    SND_NOWAIT = 0x00002000,
    /// <summary>name is a registry alias</summary>
    SND_ALIAS = 0x00010000,
    /// <summary>alias is a predefined id</summary>
    SND_ALIAS_ID = 0x00110000,
    /// <summary>name is file name</summary>
    SND_FILENAME = 0x00020000,
    /// <summary>name is resource name or atom</summary>
    SND_RESOURCE = 0x00040004
}

[DllImport("winmm.dll", SetLastError=true)]
static extern bool PlaySound(string pszSound, UIntPtr hmod, uint fdwSound);

更新

道歉,你是对的.API不能用于同时播放声音.你应该使用waveOutapi.看看这篇文章:http://www.codeproject.com/KB/audio-video/cswavrec.aspx