Noise suppressing microphone array for highly noisy environments using power spectrum density estimation in beamspace

摘要

We propose a noise-suppressing microphone array using power spectrum density (PSD) estimation. The microphones of the proposed microphone array achieve over 22 dB higher signal-to-noise ratio on average than other commercial microphones. This microphone array is useful for voice communication and voice recognition in highly noisy environments such as factories and construction sites.