Title:
ACOUSTIC DEVICE, PLAYBACK METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/070165
Kind Code:
A1
Abstract:
This acoustic device adjusts the playback sound of a speaker so the playback sound is heard in a prescribed playback area. A background noise signal indicating the ambient noise around a microphone is generated on the basis of a playback signal output from a sound source of the playback sound, a detected sound signal indicating a detected sound from the microphone installed near a speaker, and the transmission characteristics of an audio signal transmitted from the speaker to the microphone. A sound leak signal indicating the playback sound heard at a representative point located outside the playback area is generated on the basis of the playback signal and the transmission characteristics of an audio signal transmitted from the speaker to the representative point. The level of the playback signal is adjusted so that the sound leak signal level is less than the background-noise signal level.
Inventors:
KANO HIROYUKI
NAKAHASHI KOTA
NAKAHASHI KOTA
Application Number:
PCT/JP2023/027068
Publication Date:
April 04, 2024
Filing Date:
July 24, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B60R11/02; H04R1/02; H04R3/00
Attorney, Agent or Firm:
KOTANI, Masataka et al. (JP)
Download PDF: