使用C＃在特定设备中播放声音
我的问题是，如果我想创建3个按钮，我有3个声卡，每个按钮与声卡相关（例如button1与声卡1 …相关），当我点击button1时，我想听到声音来自扬声器与声卡1有关（与按钮2和按钮3相同。
我的朋友给了我两个代码：第一次使用Naudio它可以工作但是我仍然无法在三张声卡中播放声音，我的意思是当我安装三张声卡时只有一张声卡工作，这就像程序是总是选择一个来自三个外部声卡的默认声卡。
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“devicenumber = 1例如”，我需要知道如何因为我会spicifie每个按钮的设备（例如，当我点击按钮1时，声音将在声卡1中播放）？
我想知道我们如何纠正这两个代码中的一个，如何在第二个代码中指定一个“设备”，请帮助我吗？
这是Form2的代码（来自使用NAudio的项目）你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引起了提到的问题：
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; } } }
提前谢谢。祝你好运。
在按钮单击处理程序中，您正在创建WaveOut设备，设置其设备编号，然后您的playSoundfunction使用完全不同的IWavePlayer（DirectSoundOut实例）播放声音。 你的代码有几个问题（特别是对于并发播放），但我首先将设备号传递给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; output = waveOut; output.Init(waveReader); output.Play(); }
我有一个类似的问题，我需要能够控制哪个声音设备播放声音，我发现了一个很好的库（irrKlang），这使得这样做非常容易。 对于任何感兴趣的人，这里是链接： http ： //www.ambiera.com/irrklang/downloads.html 。 使用此库，只需几行代码即可选择所需的声音设备并使用它播放声音。
//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);
我希望这可以帮助别人。