在 C# 中播放声音 - 使用哪种方式？
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【中文标题】在 C# 中播放声音 - 使用哪种方式？【英文标题】：Playing Sound in C# - which of all ways to use? 【发布时间】：2011-12-26 00:55:06 【问题描述】：我正在尝试编写一个小的 C# .net - 单击特定按钮时从文件夹中随机播放声音的应用程序。
所以我花了一些时间寻找正确的方法来实现这一点。在我的脑海中，“只是播放声音”似乎没有那么复杂，但是有很多方法可以做到这一点。
请纠正我现在要说的每一句话：
PlaySound 是非常古老的方式，没有音量、多种声音或循环等控件 mciSendString，将文本 cmets 发送到 MCI，播放不同格式，支持音量控制，甚至可以同时发出多个声音，发送字符串命令而不是使用类不是很舒服，可能需要一个格式良好的包装类（有人吗？：D ) SoundPlayer 类，支持异步，没有更多的东西，没有音量没有循环 MediaPlayer 类，支持的不仅仅是音频、.net 4.0、音量，但需要一些“特殊处理”才能同时处理多个声音 DirectSound，似乎支持所有你能想象到的声音，代码看起来太复杂了，无法“简单地播放声音”好的，这就是方法，也许我错过了一种，但总的来说......我还没有被一种方法说服。
我想开始、停止、暂停自定义 .wav .mp3 声音，不仅是在彼此之后，有时甚至在同一时间，在它们运行期间改变音量，也许一些静音功能会停止所有声音。听起来很简单，但真的吗？
提前感谢您的任何提示，
哈利
【问题讨论】：
【参考方案1】：您要求启动一个新的 Windows Media 播放器进程并加载指定的声音文件是否更有意义？ 您可以使用 System.Diagnostics.Process 类完成此操作
Process.Start("wmplayer.exe", "C:\\myPath\\mySound.mp3");
【讨论】：
好的，这是另一种简单地启动声音的方法。也不是很舒服：|【参考方案2】：您可以在 WPF 中使用媒体播放器控件，该控件非常易于使用并可以根据您的需要进行自定义。
如果您只是使用 windows 窗体，您可以使用 windows 媒体播放器 ActiveX 控件并对其进行一些自定义，以拥有自己的 UI 用于播放/暂停/前进/后退等。
与以上两种选择相比，DirectX 的开发难度不大。
【讨论】：
感谢您的建议，实际上我正在使用“just” :D Windows Forms【参考方案3】：我扩展了我在这里找到的一个类：Playing MP3s using MCI http://www.codeproject.com 并使其易于使用多种可控制的声音。
这几乎是不言自明的，但也许有人在使用这段代码时发现这个线程可以节省一些时间，或者可能有一些主要的事情需要改进：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.IO;
namespace someNameHere
public class MP3Player
private string Pcommand, FName,alias;
private bool Opened, Playing, Paused, Loop,
MutedAll, MutedLeft, MutedRight;
private int rVolume, lVolume, aVolume,
tVolume, bVolume, VolBalance;
private ulong Lng;
private long Err;
private static int counter = 0;
public static List<MP3Player> currentlyActive = new List<MP3Player>();
public static List<MP3Player> lastFiveActive = new List<MP3Player>();
[DllImport("winmm.dll")]
private static extern long mciSendString(string strCommand,
StringBuilder strReturn, int iReturnLength,
IntPtr hwndCallback);
public MP3Player()
Opened = false;
Pcommand = "";
FName = "";
Playing = false;
Paused = false;
Loop = false;
MutedAll = MutedLeft = MutedRight = false;
rVolume = lVolume = aVolume =
tVolume = bVolume = 1000;
Lng = 0;
VolBalance = 0;
Err = 0;
counter++;
alias = "alias" + counter.ToString();
currentlyActive = cleanUpActive();
currentlyActive.Add(this);
~MP3Player()
currentlyActive.Remove(this);
private List<MP3Player> cleanUpActive()
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
cachedList = (from c in cachedList where c.AudioLength == c.CurrentPosition select c).ToList();
foreach (MP3Player eachSound in cachedList)
eachSound.Stop();
eachSound.Close();
return (from c in currentlyActive where c.AudioLength != c.CurrentPosition select c).ToList();
public static void playRandomFromFolder(string relpath, bool checkIfInLast)
try
string currentdir = Environment.CurrentDirectory;
string[] Files = Directory.GetFiles(currentdir + relpath);
Random randNum = new Random();
List<string> list_paths = (from c in lastFiveActive select c.FileName).ToList();
string randomFile = "";
int i = 0;
while (true)
int zufall = randNum.Next(0, Files.Length);
if (!list_paths.Contains(Files[zufall]) || i > 10)
randomFile = Files[zufall];
break;
MP3Player playIt = new MP3Player();
playIt.Open(randomFile);
playIt.Play();
catch (Exception err)
// MessageBox.Show(err.Message);
#region AllActiveFunctions
public static void stopAllActive()
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
eachSound.Stop();
public static void pauseAllActive()
foreach (MP3Player eachSound in currentlyActive)
eachSound.Pause();
public static void playAllActive()
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
eachSound.Play();
public static void setVolumeAllActive(int i)
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
eachSound.VolumeAll = i;
public static void setVolumeLeft(int i)
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
eachSound.VolumeLeft = i;
public static void setVolumeRight(int i)
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
eachSound.VolumeRight = i;
public static void setVolumeTreble(int i)
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
eachSound.VolumeTreble = i;
public static void setVolumeBass(int i)
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
eachSound.VolumeBass = i;
public static void setBalance(int i)
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
eachSound.Balance = i;
public static void stopLast()
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
cachedList.Last().Stop();
#endregion
#region Volume
public bool MuteAll
get
return MutedAll;
set
MutedAll = value;
if (MutedAll)
Pcommand = "setaudio " + alias + " off";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
else
Pcommand = "setaudio " + alias + " on";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
public bool MuteLeft
get
return MutedLeft;
set
MutedLeft = value;
if (MutedLeft)
Pcommand = "setaudio " + alias + " left off";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
else
Pcommand = "setaudio " + alias + " left on";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
public bool MuteRight
get
return MutedRight;
set
MutedRight = value;
if (MutedRight)
Pcommand = "setaudio " + alias + " right off";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
else
Pcommand = "setaudio " + alias + " right on";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
public int VolumeAll
get
return aVolume;
set
if (Opened && (value >= 0 && value <= 1000))
aVolume = value;
Pcommand = String.Format("setaudio " + alias + "" +
" volume to 0", aVolume);
if ((Err = mciSendString(Pcommand, null, 0,
IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
public int VolumeLeft
get
return lVolume;
set
if (Opened && (value >= 0 && value <= 1000))
lVolume = value;
Pcommand = String.Format("setaudio " + alias + "" +
" left volume to 0", lVolume);
if ((Err = mciSendString(Pcommand, null, 0,
IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
public int VolumeRight
get
return rVolume;
set
if (Opened && (value >= 0 && value <= 1000))
rVolume = value;
Pcommand = String.Format("setaudio" +
" " + alias + " right volume to 0", rVolume);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
public int VolumeTreble
get
return tVolume;
set
if (Opened && (value >= 0 && value <= 1000))
tVolume = value;
Pcommand = String.Format("setaudio " + alias + "" +
" treble to 0", tVolume);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
public int VolumeBass
get
return bVolume;
set
if (Opened && (value >= 0 && value <= 1000))
bVolume = value;
Pcommand = String.Format("setaudio " + alias + " bass to 0",
bVolume);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
public int Balance
get
return VolBalance;
set
if (Opened && (value >= -1000 && value <= 1000))
VolBalance = value;
if (value < 0)
Pcommand = "setaudio " + alias + " left volume to 1000";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = String.Format("setaudio " + alias + " right" +
" volume to 0", 1000 + value);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
else
Pcommand = "setaudio " + alias + " right volume to 1000";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = String.Format("setaudio " + alias + "" +
" left volume to 0", 1000 - value);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
#endregion
#region Main Functions
public string FileName
get
return FName;
public bool Looping
get
return Loop;
set
Loop = value;
public void Seek(ulong Millisecs)
if (Opened && Millisecs <= Lng)
if (Playing)
if (Paused)
Pcommand = String.Format("seek " + alias + " to 0", Millisecs);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
else
Pcommand = String.Format("seek " + alias + " to 0", Millisecs);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = "play " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
private void CalculateLength()
StringBuilder str = new StringBuilder(128);
mciSendString("status " + alias + " length", str, 128, IntPtr.Zero);
Lng = Convert.ToUInt64(str.ToString());
public ulong AudioLength
get
if (Opened) return Lng;
else return 0;
public void Close()
if (Opened)
Pcommand = "close " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Opened = false;
Playing = false;
Paused = false;
OnCloseFile(new CloseFileEventArgs());
public void Open(string sFileName)
if (!Opened)
Pcommand = "open \"" + sFileName +
"\" type mpegvideo alias " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
FName = sFileName;
Opened = true;
Playing = false;
Paused = false;
Pcommand = "set " + alias + " time format milliseconds";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = "set " + alias + " seek exactly on";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
CalculateLength();
OnOpenFile(new OpenFileEventArgs(sFileName));
else
this.Close();
this.Open(sFileName);
private void stackLastFive(MP3Player latest)
if (lastFiveActive.Count() > 5)
lastFiveActive.Reverse();
lastFiveActive = lastFiveActive.Take(4).ToList();
lastFiveActive.Add(latest);
public void Play()
if (Opened)
if (!Playing)
Playing = true;
Pcommand = "play " + alias + "";
if (Loop) Pcommand += " REPEAT";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPlayFile(new PlayFileEventArgs());
else
if (!Paused)
Pcommand = "seek " + alias + " to start";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = "play " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPlayFile(new PlayFileEventArgs());
else
Paused = false;
Pcommand = "play " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPlayFile(new PlayFileEventArgs());
stackLastFive(this);
public void Pause()
if (Opened)
if (!Paused)
Paused = true;
Pcommand = "pause " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPauseFile(new PauseFileEventArgs());
else
Paused = false;
Pcommand = "play " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPlayFile(new PlayFileEventArgs());
public void Stop()
if (Opened && Playing)
Playing = false;
Paused = false;
Pcommand = "seek " + alias + " to start";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = "stop " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
currentlyActive.Remove(this);
OnStopFile(new StopFileEventArgs());
public ulong CurrentPosition
get
if (Opened && Playing)
StringBuilder s = new StringBuilder(128);
Pcommand = "status " + alias + " position";
if ((Err = mciSendString(Pcommand, s, 128, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
return Convert.ToUInt64(s.ToString());
else return 0;
#endregion
#region Event Handling
public delegate void OpenFileEventHandler(Object sender,
OpenFileEventArgs oea);
public delegate void PlayFileEventHandler(Object sender,
PlayFileEventArgs pea);
public delegate void PauseFileEventHandler(Object sender,
PauseFileEventArgs paea);
public delegate void StopFileEventHandler(Object sender,
StopFileEventArgs sea);
public delegate void CloseFileEventHandler(Object sender,
CloseFileEventArgs cea);
public delegate void ErrorEventHandler(Object sender,
ErrorEventArgs eea);
public event OpenFileEventHandler OpenFile;
public event PlayFileEventHandler PlayFile;
public event PauseFileEventHandler PauseFile;
public event StopFileEventHandler StopFile;
public event CloseFileEventHandler CloseFile;
public event ErrorEventHandler Error;
protected virtual void OnOpenFile(OpenFileEventArgs oea)
if (OpenFile != null) OpenFile(this, oea);
protected virtual void OnPlayFile(PlayFileEventArgs pea)
if (PlayFile != null) PlayFile(this, pea);
protected virtual void OnPauseFile(PauseFileEventArgs paea)
if (PauseFile != null) PauseFile(this, paea);
protected virtual void OnStopFile(StopFileEventArgs sea)
if (StopFile != null) StopFile(this, sea);
protected virtual void OnCloseFile(CloseFileEventArgs cea)
if (CloseFile != null) CloseFile(this, cea);
if (currentlyActive.Contains(this))
currentlyActive.Remove(this);
protected virtual void OnError(ErrorEventArgs eea)
if (Error != null) Error(this, eea);
public class OpenFileEventArgs : EventArgs
public OpenFileEventArgs(string filename)
this.FileName = filename;
public readonly string FileName;
public class PlayFileEventArgs : EventArgs
public PlayFileEventArgs()
public class PauseFileEventArgs : EventArgs
public PauseFileEventArgs()
public class StopFileEventArgs : EventArgs
public StopFileEventArgs()
public class CloseFileEventArgs : EventArgs
public CloseFileEventArgs()
public class ErrorEventArgs : EventArgs
public ErrorEventArgs(long Err)
this.ErrNum = Err;
public readonly long ErrNum;
#endregion
【讨论】：
【参考方案4】：我想说MediaPlayer 类是最健壮的，也是最容易使用的。我已经完成了一些音频/视频播放，你几乎可以用它做任何事情。由于您需要播放多个文件SoundPlayer 是显而易见的选择，因此您可以将两者混合使用。
但是，您可以拥有多个 MediaPlayer 实例并像这样播放不同的声音。
您似乎已经完成了研究，并且几乎可以最好地回答您的问题。
【讨论】：
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