/// <summary>
        /// 初始化扬声器设备列表
        /// </summary>
        /// <param name="devInfos"></param>
        private void InitSpeakerDeviceList(SDKMediaDevInfo[] devInfos, string selectedDevId)
        {
            if (0 >= devInfos.Length)
            {
                return;
            }

            foreach (SDKMediaDevInfo devInfo in devInfos)
            {
                SettingsDeviceInfo info = new SettingsDeviceInfo();
                if (0 == string.CompareOrdinal(selectedDevId, devInfo.devId))
                {
                    info.NemoDevInfoConverter(devInfo, MediaDeviceType.Speaker, true);
                }
                else
                {
                    info.NemoDevInfoConverter(devInfo, MediaDeviceType.Speaker, false);
                }
                SettingsDeviceListItemInfo itemDev = new SettingsDeviceListItemInfo(info);
                DeviceSpeakerList.Add(itemDev);
                DeviceSpeakerList = new ObservableCollection <SettingsDeviceListItemInfo>(DeviceSpeakerList.OrderBy(x => x.DevName).ToList());
            }
        }