In recent years, as the developing of audio recognition technology, most of the mobile devices are equipped the voice input system, just like car navigator/smart phone, even smart home application will use this technology gradually. Meanwhile, with the commercial business growing globally, video call and video conference will be widely used. In future, the more high-level audio technology will be needed.

 What's beamforming for microphone?

 This is to recognize the direction of input sound signals from microphone. It is a technology of the sound source treatment using DSP which receives (or records) a specific sound signal only from the target direction.