公开(公告)号：US20240282312A1

公开(公告)日：2024-08-22

申请号：US18415339

申请日：2024-01-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomofumi YAMANASHI ,  Naoya MOCHIKI ,  Yutaka BANBA

IPC: G10L17/02 ,  G06V40/16

CPC classification number: G10L17/02 ,  G06V40/16

Abstract: A voice processing device includes a calculation unit and a determination processing unit. The calculation unit calculates a first feature being a feature of an input voice signal. When a similarity between the first feature and a second feature out of one or more registered features having been registered is equal to or larger than a first threshold, the determination processing unit makes determination that the input voice signal is a voice of a first registered person out of registered persons. The first registered person corresponds to the second feature. When the similarity is equal to or larger than the first threshold and smaller than a second threshold, the determination processing unit adds the first feature to the registered features or updates the registered features with the first feature.

公开(公告)号：US20220406286A1

公开(公告)日：2022-12-22

申请号：US17895319

申请日：2022-08-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomofumi YAMANASHI ,  Yutaka BANBA

IPC: G10K11/178 ,  H04R1/40

Abstract: An audio processing system includes at least one first microphone, at least one adaptive filter, and a processor. The at least one first microphone acquires a first audio signal and outputs a first signal based on the first audio signal. The first audio signal includes at least one of a first audio component generated at a first position and a second audio component generated at a second position different from the first position. The first signal is input to the at least one adaptive filter. The at least one adaptive filter outputs a passing signal based on the first signal. The processor, when executing a program stored in a memory, performs: making a determination of which of the first audio component and the second audio component the first audio signal includes more; and controlling a filter coefficient of the adaptive filter based on a result of the determination.

公开(公告)号：US20220189450A1

公开(公告)日：2022-06-16

申请号：US17689504

申请日：2022-03-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomofumi YAMANASHI ,  Yutaka BANBA

IPC: G10K11/178 ,  H04S7/00

Abstract: An audio processing system includes: a first microphone configured to output a first signal based on a first audio signal; one or more microphones each of which outputs a microphone signal based on an audio signal; one or more adaptive filters configured to respectively receive the microphone signals from the one or more microphones and output passing signals based on the microphone signals; and a processor configured to: determine whether the microphone signal includes uncorrelated noise; control one or more filter coefficients of the one or more adaptive filters; and subtract a subtraction signal based on the passing signals from the first signal. The one or more microphones include a second microphone that outputs a second signal. When determining that the second signal includes the uncorrelated noise, the processor is configured to set a level of the second signal input to the corresponding adaptive filter to zero.