Title:
ECHO CANCELATION DEVICE AND ECHO CANCELATION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/070461
Kind Code:
A1
Abstract:
This echo cancelation device generates a microphone signal, updates an adaptive filter which is used to estimate an echo signal, generates a pseudo-echo signal on the basis of an output signal and the adaptive filter, generates an echo-canceled signal by removing the pseudo-echo signal from the microphone signal, determines whether or not a target sound signal is included in the echo-canceled signal, adjusts the gain of the echo-canceled signal on the basis of the determination results, and generates the output signal on the basis of the adjusted echo-canceled signal.
Inventors:
OHASHI HIROMASA
ARAKI JUNJI
ARAKI JUNJI
Application Number:
PCT/JP2023/031654
Publication Date:
April 04, 2024
Filing Date:
August 30, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04B3/23; H04R3/02
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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