PLEASANT SOUND MAKING DEVICE FOR FACILITY APPARATUS SOUND, AND PLEASANT SOUND MAKING METHOD FOR FACILITY APPARATUS SOUND

A pleasant sound making device processes temporal variation characteristics in nature such that a frequency component and a peak frequency component in a frequency band which coincide with or are approximate to a housing of an indoor unit provided with a driving part (a fan, a motor, etc.) do not co...

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Bibliographic Details
Main Authors FUJIWARA SUSUMU, MORIOKA REIJI
Format Patent
LanguageEnglish
Published 25.06.2015
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PHYSICS
SOUND-PRODUCING DEVICES
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Summary:A pleasant sound making device processes temporal variation characteristics in nature such that a frequency component and a peak frequency component in a frequency band which coincide with or are approximate to a housing of an indoor unit provided with a driving part (a fan, a motor, etc.) do not coincide with or are not approximate to the housing, on the basis of subjective view and physiological response evaluations of humans, and operates the driving part with a signal based on the processed waveform.
Bibliography:Application Number: US201214416318