foreach (SoundCaptureDevice device in SoundCaptureDevice.AllAvailable)
            {
                devicesCmb.Items.Add(device);
                Console.WriteLine(i);
            }
// SoundCaptureDevice.AllAvailable   这步很慢  
// 这跟下两个代码  原本在A项目里的主界面被调用  正常
// 新建一个项目   引入A项目 按钮事件中  调用 a项目的主界面  
// 就一直卡在  SoundCaptureDevice.AllAvailable

public struct SoundCaptureDevice : IEquatable<SoundCaptureDevice>
    {
        public static readonly SoundCaptureDevice Default;

        public SoundCaptureDevice(string description, Guid driverGuid, string moduleName);

        public static IEnumerable<SoundCaptureDevice> AllAvailable { get; }
        public string Description { get; }
        public Guid DriverGuid { get; }
        public string ModuleName { get; }

        public bool Equals(SoundCaptureDevice other);
        public override bool Equals(object obj);
        public override int GetHashCode();
        public override string ToString();

        public static bool operator ==(SoundCaptureDevice device1, SoundCaptureDevice device2);
        public static bool operator !=(SoundCaptureDevice device1, SoundCaptureDevice device2);
    }