使用 C# 在特定设备中播放声音
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【中文标题】使用 C# 在特定设备中播放声音【英文标题】：Play a sound in a specific device with C# 【发布时间】：2011-05-03 11:45:19 【问题描述】：我的问题是，如果我想创建 3 个按钮并且我有 3 个声卡，并且每个按钮都与声卡相关（例如 button1 与声卡1...），当我点击 button1 时，我想听到与声卡1相关的扬声器发出的声音（按钮2和按钮3相同。
我的朋友给了我两个代码：第一次使用 Naudio 它可以工作，但我仍然无法在三个声卡中播放声音。我的意思是当我安装三个声卡时只有一个声卡工作。就像程序总是从三个外置声卡中选择一个默认声卡一样。
第二个使用 DirectX，它适用于我，但我不明白他如何调用设备号。我的意思是在使用 NAudio 的代码中有“例如 devicenumber= 1”。我需要知道如何，因为我将为每个按钮指定一个设备（例如，当我单击按钮 1 时，声音将在声卡 1 中播放）？
我想知道如何更正这两个代码之一，以及如何在第二个代码中指定“设备”。
这是 Form2 的代码（来自使用 NAudio 的项目），您可以注意到它如何为每个按钮指定一个设备，但不幸的是它导致了上述问题：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using NAudio.Wave;
using NAudio.CoreAudioApi;
namespace AudioWithNAudio
public partial class Form2 : Form
string fileName = null;
WaveOut wave = null;
private NAudio.Wave.WaveFileReader waveReader = null;
private NAudio.Wave.DirectSoundOut output = null;
public Form2()
InitializeComponent();
private void Form2_Load(object sender, EventArgs e)
hideButtons();
fileName = ("alarm.wav");
detectDevices();
public void hideButtons()
bttnAudioDevice1.Visible = false;
bttnAudioDevice2.Visible = false;
bttnAudioDevice3.Visible = false;
bttnAudioDevice4.Visible = false;
bttnAudioDevice5.Visible = false;
public void detectDevices()
int waveOutDevices = WaveOut.DeviceCount;
switch (waveOutDevices)
case 1:
bttnAudioDevice1.Visible = true;
break;
case 2:
bttnAudioDevice2.Visible = true;
bttnAudioDevice1.Visible = true;
break;
case 3:
bttnAudioDevice2.Visible = true;
bttnAudioDevice1.Visible = true;
bttnAudioDevice3.Visible = true;
break;
case 4:
bttnAudioDevice2.Visible = true;
bttnAudioDevice1.Visible = true;
bttnAudioDevice3.Visible = true;
bttnAudioDevice4.Visible = true;
break;
case 5:
bttnAudioDevice2.Visible = true;
bttnAudioDevice1.Visible = true;
bttnAudioDevice3.Visible = true;
bttnAudioDevice4.Visible = true;
bttnAudioDevice5.Visible = true;
break;
private void bttnAudioDevice1_Click(object sender, EventArgs e)
wave = new WaveOut();
wave.DeviceNumber = 0;
playSound();
private void bttnAudioDevice2_Click(object sender, EventArgs e)
wave = new WaveOut();
wave.DeviceNumber = 1;
playSound();
private void bttnAudioDevice3_Click(object sender, EventArgs e)
wave.DeviceNumber = 2;
playSound();
private void bttnAudioDevice4_Click(object sender, EventArgs e)
wave.DeviceNumber = 3;
playSound();
private void bttnAudioDevice5_Click(object sender, EventArgs e)
wave.DeviceNumber = 4;
playSound();
public void playSound()
disposeWave();// stop previous sounds before starting
waveReader = new NAudio.Wave.WaveFileReader(fileName);
output = new NAudio.Wave.DirectSoundOut();
output.Init(new NAudio.Wave.WaveChannel32(waveReader));
output.Play();
public void disposeWave()
if (output != null)
if (output.PlaybackState == NAudio.Wave.PlaybackState.Playing)
output.Stop();
output.Dispose();
output = null;
if (wave != null)
wave.Dispose();
wave = null;
private void Form2_FormClosing(object sender, FormClosingEventArgs e)
disposeWave();
private void bttnStop_Click(object sender, EventArgs e)
if (output != null)
if (output.PlaybackState == NAudio.Wave.PlaybackState.Playing)
output.Stop();
这是 Form1 的代码（来自使用 DirectX 的项目）：
using System;
using System.Windows.Forms;
using Microsoft.DirectX.DirectSound;
using DirectSound = Microsoft.DirectX.DirectSound;
namespace DirectSoundPlay
public partial class Form1 : Form
public Form1()
InitializeComponent();
ReSizeControls();
private void playToolStripMenuItem_Click(object sender, EventArgs e)
if (listBox2.SelectedItems.Count == 0)
return;
if (listBox2.SelectedItems.Count > 1)
MessageBox.Show("Too many SelectedItems");
return;
ClassAudioDevice ad = listBox2.SelectedItem as ClassAudioDevice;
if (ad == null)
MessageBox.Show("SelectedItem is not a ClassAudioDevice");
return;
DirectSound.Device Device = new DirectSound.Device(ad.DriverGuid);
Device.SetCooperativeLevel(this.Handle, DirectSound.CooperativeLevel.Priority);
DirectSound.Buffer AudioBuffer = new DirectSound.Buffer("C:\\Windows\\Media\\notify.wav", Device);
AudioBuffer.Play(0, BufferPlayFlags.Default);
private void exitToolStripMenuItem_Click(object sender, EventArgs e)
Close();
private void Form1_SizeChanged(object sender, EventArgs e)
ReSizeControls();
private void ReSizeControls()
int w = ClientSize.Width >> 1;
listBox1.Width = w - 1;
listBox2.Width = w - 1;
listBox1.Height = ClientSize.Height;
listBox2.Height = ClientSize.Height;
private void Form1_Load(object sender, EventArgs e)
DirectSound.DevicesCollection DevicesList = new DirectSound.DevicesCollection();
DirectSound.CaptureDevicesCollection CaptureDevicesList = new DirectSound.CaptureDevicesCollection();
ClassAudioDevice ad;
//
foreach (DirectSound.DeviceInformation di in CaptureDevicesList)
ad = new ClassAudioDevice();
ad.Description = di.Description;
ad.DriverGuid = di.DriverGuid;
listBox1.Items.Add(ad);
foreach (DirectSound.DeviceInformation di in DevicesList)
ad = new ClassAudioDevice();
ad.Description = di.Description;
ad.DriverGuid = di.DriverGuid;
listBox2.Items.Add(ad);
这是 ClassAudioDevice 的代码（来自同一个项目）：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace DirectSoundPlay
class ClassAudioDevice
public string Description = "";
public Guid DriverGuid = new Guid();
public override string ToString()
return Description;
【问题讨论】：
【参考方案1】：在您的按钮单击处理程序中，您正在创建一个 WaveOut 设备，设置其设备编号，然后您的 playSound 函数使用完全不同的 IWavePlayer（DirectSoundOut 的一个实例）播放声音。您的代码存在几个问题（尤其是并发播放时），但我会先将设备编号传递给 playSound 函数。
public void playSound(int deviceNumber)
disposeWave();// stop previous sounds before starting
waveReader = new NAudio.Wave.WaveFileReader(fileName);
var waveOut = new NAudio.Wave.WaveOut();
waveOut.DeviceNumber = deviceNumber;
waveOut.Init(waveReader);
waveOut.Play();
【讨论】：
@Mark Heath：非常感谢 Mark 它可以工作了，现在我可以听到三个扬声器的声音了。【参考方案2】：我有一个类似的问题，我需要能够控制在哪个声音设备上播放声音，我找到了一个不错的库 (irrKlang)，它让这一切变得非常容易。对于任何感兴趣的人，这是链接：http://www.ambiera.com/irrklang/downloads.html。有了这个库，只需几行代码就可以选择所需的声音设备并用它播放声音。
//Get the list of installed sound devices.
sdl = new IrrKlang.ISoundDeviceList(IrrKlang.SoundDeviceListType.PlaybackDevice);
//Add each device to a combo box.
for(int i = 0; i < sdl.DeviceCount; i++)
comboBox1.Items.Add(sdl.getDeviceDescription(i) + "\n");
//Place this code in your play sound event handler.
//Create a sound engine for the selected device (uses the ComboBox index to
//get device ID).
irrKlangEngine = new IrrKlang.ISoundEngine(IrrKlang.SoundOutputDriver.AutoDetect,
IrrKlang.SoundEngineOptionFlag.DefaultOptions,
sdl.getDeviceID(comboBox1.SelectedIndex));
//Play the selected file
playSelectedFile(fileName);
我希望这对某人有所帮助。
【讨论】：
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