公开(公告)号：US10477326B2

公开(公告)日：2019-11-12

申请号：US15413821

申请日：2017-01-24

Applicant: SOCIONEXT INC.

Inventor： Shuji Miyasaka ,  Kazutaka Abe

IPC: H04R25/00 ,  H04R3/04 ,  G10L21/0364 ,  G10L19/26

Abstract: A signal processing device, comprising a high band attenuation filter which attenuates a signal component in a bandwidth of frequency higher than at least a predetermined frequency in an audio signal that is input, and a hearing aid processor which performs hearing aid processing on a signal output from the high band attenuation filter, wherein the predetermined frequency is determined according to the upper limit of a target bandwidth of frequency for hearing aid.

公开(公告)号：US11700500B2

公开(公告)日：2023-07-11

申请号：US17374780

申请日：2021-07-13

Applicant: SOCIONEXT INC.

Inventor： Shuji Miyasaka ,  Kazutaka Abe ,  Yasunori Naruse

IPC: H04S7/00 ,  H04R27/00 ,  H04M3/56

CPC classification number: H04S7/303 ,  H04S2420/01

Abstract: An audio communication device includes: a sound position determiner that determines sound localization positions for N audio signals in a virtual space having first and second walls; N sound localizers each performing sound localization processing to localize sound in the sound localization position determined by the sound position determiner, and outputting localized sound signals; an adder that sums the N localized sound signals, and outputs a summed localized sound signal. Each sound localizer performs the processing using: a first head-related transfer function (HRTF) assuming that a sound wave emitted from the sound localization position of the sound localizer determined by the sound position determiner directly reaches each ear of a hearer virtually present at the hearer position; and a second HRTF assuming that the sound wave emitted from the sound localization position reaches each ear of the hearer after being reflected by closer one of the first and second walls.

公开(公告)号：US11310621B2

公开(公告)日：2022-04-19

申请号：US16884806

申请日：2020-05-27

Applicant: SOCIONEXT INC.

Inventor： Kazutaka Abe ,  Shuji Miyasaka ,  Katsumi Kobayashi ,  Yoshitaka Mizuno

IPC: H04S7/00 ,  H04R3/04 ,  H04R3/12 ,  H04R5/04

Abstract: A signal processing device includes one or more filter processors that perform sound localization processing of an input acoustic signal and generate output signals; a coefficient setter that sets, for the filter processors, a plurality of filter coefficients for use in the filter processors; an output data selector that selects, out of the output signals subjected to the sound localization processing by the filter processors, output signals to be output to a left speaker and a right speaker; a time measurer that monitors a time for switching the output signals; and a controller that causes the output data selector to select the output signals in accordance with the time for switching the output signals. The plurality of filter coefficients include filter coefficients generated under a plurality of hearing conditions.

公开(公告)号：US11128975B2

公开(公告)日：2021-09-21

申请号：US16904067

申请日：2020-06-17

Applicant: SOCIONEXT, INC.

Inventor： Katsumi Kobayashi ,  Kazutaka Abe ,  Yoshitaka Mizuno

IPC: H04S7/00 ,  H04R1/02 ,  H04R3/00

Abstract: An acoustic system includes an audio output device configured to output a sound to a listener being still at least for a predetermined period of time, and an acoustic control device configured to perform signal processing for localizing, at a specific part of the listener, the sound that is output through the audio output device, wherein the audio output device is installed above the specific part of the listener.

公开(公告)号：US10587940B2

公开(公告)日：2020-03-10

申请号：US16419793

申请日：2019-05-22

Applicant: SOCIONEXT INC.

Inventor： Shuji Miyasaka ,  Kazutaka Abe ,  Katsumi Kobayashi

IPC: H04R1/02 ,  B62D1/04 ,  H04R5/02 ,  H04S7/00

Abstract: An acoustic device that provides a stereophonic effect to a driver of a mobile object includes: a plurality of speakers (an L channel speaker and an R channel speaker) mounted on a steering wheel that controls a traveling direction of the mobile object; a steering angle detection unit configured to detect a steering angle of the steering wheel; and a signal output unit configured to output a plurality of output signals obtained by performing, on a sound signal, a process relating to the stereophonic effect and depending on the steering angle, respectively to the plurality of speakers.

公开(公告)号：US10560782B2

公开(公告)日：2020-02-11

申请号：US16160791

申请日：2018-10-15

Applicant: SOCIONEXT INC.

Inventor： Kazutaka Abe ,  Shuji Miyasaka

IPC: H04R3/14 ,  H04S1/00 ,  H04R3/04

Abstract: A signal processor that performs crosstalk cancellation on an audio signal that is input, in a distorted acoustic space where two speakers are placed, the two speakers including an X-side speaker and a Y-side speaker, where X denotes one of left and right, and Y denotes the other of left and right. The signal processor causes the Y-side speaker to output a sound of the audio signal and causes the X-side speaker to output a sound of a signal obtained by processing the audio signal using transfer function GCY, where a transfer function between the Y-side speaker and the Y-side ear is defined as GYY, a transfer function between the X-side speaker and the Y-side ear is defined as GXY, and a transfer function obtained by dividing the transfer function GYY by the transfer function GXY is defined as GCY.

公开(公告)号：US09792902B2

公开(公告)日：2017-10-17

申请号：US14750647

申请日：2015-06-25

Applicant: Socionext Inc.

Inventor： Shuji Miyasaka ,  Kazutaka Abe

IPC: G10L15/00 ,  G10L15/08 ,  G10L21/0208 ,  G10L13/00 ,  G10L15/28 ,  G10L17/22 ,  G10L15/22

CPC classification number: G10L15/08 ,  G10L13/00 ,  G10L15/22 ,  G10L15/222 ,  G10L15/28 ,  G10L17/22 ,  G10L21/0208 ,  G10L2015/088 ,  G10L2015/223 ,  G10L2021/02082

Abstract: A device including a speech recognition function which recognizes speech from a user, includes: a loudspeaker which outputs speech to a space; a microphone which collects speech in the space; a first speech recognition unit which recognizes the speech collected by the microphone; a command control unit which issues a command for controlling the device, based on the speech recognized by the first speech recognition unit; and a control unit which prohibits the command issuance unit from issuing the command, based on the speech to be output from the loudspeaker.