SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND PROGRAM

摘要

A signal processing device includes a sound collecting unit configured to collect sound, a covering detecting unit configured to detect a covered state of the sound collecting unit on the basis of a resonance frequency and a magnitude of a component of the resonance frequency in a frequency characteristic of an acoustic signal obtained through sound collection performed by the sound collecting unit, and an apparatus control determining unit configured to determine a type of control to be performed on a target apparatus in accordance with the covered state of the sound collecting unit detected by the covering detecting unit.