Sound Masking Apparatus and Sound Masking Method
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United States of America Patent
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Issued Date -
Sep 22, 2016
app pub date -
Mar 18, 2016
filing date -
Mar 18, 2016
priority date (Note) -
Abandoned
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Abstract
A sound masking apparatus includes an information acquirer which acquires a mixing ratio between a disturbing sound and a non-disturbing sound which are included in a masker sound, and a volume controller which controls a volume of the disturbing sound and a volume of the non-disturbing sound so as to be the mixing ratio, while a volume of the masker sound is a constant value.
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