Document Type and Number:
Japanese Patent JPWO2021186631
Kind Code:
A1
Abstract:
The sound source position determination device includes a first microphone that is disposed at a position at which sound arriving from inside the closed space is likely to be picked up, a second microphone that is disposed at a position at which sound arriving from outside the closed space is likely to be picked up, a power ratio calculation unit that calculates a power ratio of an acoustic signal picked up by the first microphone during a predetermined time section to an acoustic signal picked up by the second microphone during the time section, and a determination unit that determines whether sound picked up during the time section came from inside or outside the closed space, based on the power ratio.
Application Number:
JP2022508716A
Publication Date:
September 23, 2021
Filing Date:
March 18, 2020
Export Citation:
