使用C＃在特定设备中播放声音

Question

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我想要听到与声卡1相关的扬声器发出的声音（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它可以工作但我还是不能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，就像程序是总是从三个外部声卡中选择一个默认的声卡。

第二次使用DirectX并且它适用于我，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为每个按钮设置一个设备（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“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，但不幸的是它导致了提到的问题：

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。

Answer 1

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playSound功能使用完全不同的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();
}

Answer 2

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，我找到了一个很好的库（irrKlang），这使得这样做很容易。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);

我希望这有助于某人。