Research on speech enhancement algorithm based on microphone array

Speech enhancement technology has been applied to many research fields of speech signal processing, such as speech coding, speech recognition, noise suppression and so on. However, in practical applications, there is always noise in the environment, voice in the transmission, to avoid noise interference, and the quality of the environment noise has different effects on the quality of the speech signal. Therefore, speech enhancement algorithm can realize the original clean speech from noisy speech signal. The traditional single microphone in the process of dealing with environmental noise, the received target signal and noise signals are often overlapping in the time and frequency spectrum. In view of the traditional method, using microphone array can improve the quality of voice communication, and can make full use of the time and space information of speech signal. Therefore, the use of a microphone array can overcome the shortcomings of a single microphone.