如何在C#中枚举音频输出设备

我想知道如何获取计算机上已安装的音频输出设备 (waveOut) 的列表

操作系统：Windows（XP、Vista、7） 框架：.Net 3.5 语言：c#

迭代此列表时，我想获取每个设备的标识符、制造商等信息。

有什么提示吗？

下面是使用 WMI（参考 System.Management）在 C# 中枚举音频设备的代码。

    ManagementObjectSearcher objSearcher = new ManagementObjectSearcher(
           "SELECT * FROM Win32_SoundDevice");

    ManagementObjectCollection objCollection = objSearcher.Get();

    foreach (ManagementObject obj in objCollection)
    {
        foreach (PropertyData property in obj.Properties)
        {
            Console.Out.WriteLine(String.Format("{0}:{1}", property.Name, property.Value));
        }
    }

这会导致输出类似：

Availability:
Caption:USB Audio Device
ConfigManagerErrorCode:0
ConfigManagerUserConfig:False
CreationClassName:Win32_SoundDevice
Description:USB Audio Device
DeviceID:USB\VID_047F&PID;_0CA1&MI;_00\6&2C037688&0&0000
DMABufferSize:
ErrorCleared:
ErrorDescription:
InstallDate:
LastErrorCode:
Manufacturer:(Generic USB Audio)
MPU401Address:
Name:USB Audio Device
PNPDeviceID:USB\VID_047F&PID;_0CA1&MI;_00\6&2C037688&0&0000
PowerManagementCapabilities:
PowerManagementSupported:False
ProductName:USB Audio Device
Status:OK
StatusInfo:3
SystemCreationClassName:Win32_ComputerSystem
SystemName:
Availability:

Caption:Realtek AC'97 Audio for VIA (R) Audio Controller
ConfigManagerErrorCode:0
ConfigManagerUserConfig:False
CreationClassName:Win32_SoundDevice
Description:Realtek AC'97 Audio for VIA (R) Audio Controller
DeviceID:PCI\VEN_1106&DEV;_3059&SUBSYS;_09011558&REV;_60\3&61AAA01&1&8D
DMABufferSize:
ErrorCleared:
ErrorDescription:
InstallDate:
LastErrorCode:
Manufacturer:Realtek
MPU401Address:
Name:Realtek AC'97 Audio for VIA (R) Audio Controller
PNPDeviceID:PCI\VEN_1106&DEV;_3059&SUBSYS;_09011558&REV;_60\3&61AAA01&1&8D
PowerManagementCapabilities:
PowerManagementSupported:False
ProductName:Realtek AC'97 Audio for VIA (R) Audio Controller
Status:OK
StatusInfo:3
SystemCreationClassName:Win32_ComputerSystem
SystemName:
Availability:

  

令人烦恼的是，WMI 似乎无法简单地区分音频的输入和输出设备。但是，使用 DirectSound 的托管接口和 DevicesCollection 类（如下所示（参考 Microsoft.DirectX.DirectSound）），我们可以获得更多面向声音的信息。

        DevicesCollection devColl = new DevicesCollection();
        foreach (DeviceInformation devInfo in devColl)
        {
            Device dev = new Device(devInfo.DriverGuid);   

            //use dev.Caps, devInfo to access a fair bit of info about the sound device
        }