A Microphone-Array System for Speech Recognition Input
نویسنده
چکیده
Recent Accomplishments A new, nonlinear optimization algorithm called Stochastic Region Contraction (SRC), has been developed and has been applied to the microphone placement problem, talker location, and talker characterization. We have found that SRC is nearly two orders of magnitude faster than was simulated annealing. Our current research array system has been "hardened", and recal-time, time-domain beamforming is operational.
منابع مشابه
Using a real-time, tracking microphone array as input to an HMM speech recognizer
A major problem for speech recognition systems is relieving the talker of the need to use a close-talking, head-mounted or a deskstand microphone. A likely solution is the use of an array of microphones that can steer itself to the talker and can use a beamforming algorithm to overcome the reduced signal-to-noise ratio due to room acoustics. This paper reports results for a tracking, real-time ...
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