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A directional audio-capturing device is highly desirable for normal communication in a noisy environment, and to enhance the quality of speech signal for the hearing impaired. In this paper, we propose a compact directional audio-capturing device which reduces the background noise in relation to speech signal which originates from a desired direction. This device contains three functional units: (1)...
An increasing part of our daily personal communication takes place in various noisy environments. Ever since the broad introduction of cellular phones, we tend to communicate using these phones in cars, streets and other noisy places. Noise has a negative effect on both speech intelligibility and quality; a poor signal-to-noise ratio (SNR) may indeed result in a complete lack of speech intelligibility...
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