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A low-cost recognition system for isolated words and small vocabulary (typically 15 words) is described. The main features of the system are: possibility of integration in a stand-alone small-size CMOS chip, very-low-power consumption (typically 200 μW at 3 V supply voltage), and automatic adaptation to the speaker without any tedious training mode.
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Bui et al. (1983) studied this question.
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