public ref class AudioBeam sealed : INotifyPropertyChanged
To capture audio, the sensor receives sounds from every direction. However, like the cone of light from a lighthouse where the light is the brightest, the audio capture hardware has an imaginary cone that is able to capture audio signals the best. Audio waves that propagate through the length of the cone can be separated from audio waves that travel across the cone. If you point the cone in the direction of the audio that your application is most interested in capturing, you can improve the ability to capture and separate that audio source from other competing audio sources. Therefore, use the beam angle to set the direction of the imaginary cone to improve your ability to capture a specific audio source.
Similar to the sound source angle, the beam angle is also defined in the x-z plane of the sensor perpendicular to the z-axis. The beam angle and the sound source angle are both updated continuously once the sensor has started streaming audio data (when the Start method is called).
Namespace: Windows.Kinect
Metadata: windows.winmd