UWP C#将音频设备信息显示到文本块

从

ApplicationDataContainer

从

列表框

中选择时，

设备ID

能够正确显示在

文本块

private void audioRenderList_P_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        mediaPlayer_CH1.AudioDevice = renderDeviceList_P[audioRenderList_P.SelectedIndex];
        renderDeviceName_P.Text = renderDeviceList_P[audioRenderList_P.SelectedIndex].Name.ToString();
    }

if (mediaPlayer_CH1.AudioDevice.Id != null)
        {
            Windows.Storage.ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
            Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;

            localSettings.Values["audioRenderSettings_P"] = mediaPlayer_CH1.AudioDevice.Id;
        }

但是，加载保存的音频

设备ID

时，无法将其显示为可读字符

    Windows.Storage.ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
    Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;

    if (localSettings.Values["audioRenderSettings_P"] != null)
    {
        var audioSource = localSettings.Values["audioRenderSettings_P"] as string;
        mediaPlayer_CH1.AudioDevice = await DeviceInformation.CreateFromIdAsync(audioSource);
        renderDeviceName_P.Text = audioSource;
    }
    else renderDeviceName_P.Text = "Select Audio Device ..";

---

请帮忙。谢谢。

在

SelectionChanged

事件中，您将显示名称并保存Id。但是当加载时，您显示的是Id，它们是不同的

加载时，您可以将代码更改为：

var audioSource=localSettings.Values[“audioRenderSettings\u P”]作为字符串；
mediaPlayer_CH1.AudioDevice=等待设备信息。CreateFromIdAsync（音频源）；
renderDeviceName_P.Text=mediaPlayer_CH1.AudioDevice.Name.ToString（）；

---

问候。

另一个问题，因为我正在为

音频渲染设备执行此操作。
音频捕获设备有什么区别吗？