Sound-Emitting Device and Sound-Emitting Method
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United States of America Patent
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Dec 24, 2015
app pub date -
Jan 27, 2014
filing date -
Jan 30, 2013
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Abstract
A sound-emitting device includes a high-frequency extractor, adapted to accept input of a sound signal, extract high-frequency components of sound and output a high-frequency sound signal, a low-frequency extractor, adapted to accept input of the sound signal, extract low-frequency components of sound and output a low-frequency sound signal, a delay processor, adapted to delay low-frequency components of the low-frequency sound signal within a time range not causing an echo, relative to the high-frequency sound signal, to thereby output a delayed low-frequency sound signal, and a sound emitter, adapted to emit sound based on the high-frequency sound signal and the delayed low-frequency sound signal.
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