公开(公告)号：US20220086585A1

公开(公告)日：2022-03-17

申请号：US17374780

申请日：2021-07-13

Applicant: SOCIONEXT INC.

Inventor： Shuji Miyasaka ,  Kazutaka ABE ,  Yasunori NARUSE

IPC: H04S7/00

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：US10602272B2

公开(公告)日：2020-03-24

申请号：US16289949

申请日：2019-03-01

Applicant: SOCIONEXT INC.

Inventor： Shuji Miyasaka ,  Kazutaka Abe

IPC: H04R3/12 ,  B60Q5/00 ,  G08G1/16 ,  H04S3/00 ,  B60R11/02 ,  G08G1/0967 ,  H04S7/00

Abstract: An audio signal processor includes: a first amplifier that amplifies a first audio content; a mixer that mixes an output signal of the first amplifier and a second audio content; a second amplifier that amplifies an output signal of the mixer; and a setter that sets an amplification amount of the first amplifier. The setter sets an amplification amount in the first amplifier so that the amplification amount in the first amplifier cancels an amplification amount in the second amplifier.

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.