公开(公告)号：US20170195766A1

公开(公告)日：2017-07-06

申请号：US15314623

申请日：2015-04-01

Applicant: SONY CORPORATION

Inventor： TETSU MAGARIYACHI ,  TORU NAKAGAWA

IPC: H04R1/10 ,  H04R5/027

CPC classification number: H04R1/1016 ,  H04R1/08 ,  H04R1/1075 ,  H04R5/027 ,  H04R25/55 ,  H04R25/65 ,  H04R2225/025

Abstract: An in-the-ear device such as a binaural microphone and an earphone is provided. An in-the-ear device 300 is used while being inserted into a human ear (external auditory canal), examples of which include the microphone and the earphone. This in-the-ear device 300 includes an in-the-ear device main body unit 310 substantially round column-shaped and a cylindrical inner side insertion unit 320 provided to protrude from an end surface of the in-the-ear device main stomach body unit 310 on an inner side. The in-the-ear device main body unit 310 is inserted closer to the inside than a first curve of the external auditory canal. As will be described later, an end surface of the in-the-ear device main body unit 310 on an outer side forms a surface substantially same as that of a cavum conchae while being worn. In addition, in the inner side insertion unit 320, the in-the-ear device main body unit 310 is provided to protrude closer to the inner side than the first curve of the external auditory canal in order to be along the external auditory canal.

公开(公告)号：US20210297802A1

公开(公告)日：2021-09-23

申请号：US17250603

申请日：2019-08-02

Applicant: SONY CORPORATION

Inventor： HIRONORI SATOU ,  TORU NAKAGAWA ,  TETSU MAGARIYACHI ,  KOYURU OKIMOTO

IPC: H04S7/00 ,  H04R5/02 ,  G10K15/08 ,  H04S1/00

Abstract: The present disclosure relates to a signal processing device, a signal processing method, and a program that make it possible to readily achieve personalization of head-related transfer functions in all bands. A synthesis unit generates a third head-related transfer function by synthesizing a characteristic of a first band extracted from a first head-related transfer function of a user and a characteristic of a second band other than the first band extracted from a second head-related transfer function measured in a second measurement environment different from a first measurement environment in which the first head-related transfer function is measured. The present disclosure may be applied to, for example, a mobile terminal such as a smartphone.

公开(公告)号：US20210144504A1

公开(公告)日：2021-05-13

申请号：US16626043

申请日：2018-06-21

Applicant: SONY CORPORATION

Inventor： TETSU MAGARIYACHI ,  YUHKI MITSUFUJI

IPC: H04S3/02 ,  H04S7/00 ,  H04R5/033

Abstract: The present technology relates to signal processing device and method, and a program that make it possible to reproduce sound more effectively. A signal processing device includes: a rotation operation unit that rotates a head-related transfer function in a spherical harmonic domain by an operation on the basis of a rotation matrix corresponding to rotation of a head of a listener, the operation in which an order of the rotation matrix is limited; and a synthesis unit that synthesizes the head-related transfer function after rotation obtained by the operation and a sound signal of the spherical harmonic domain to generate a headphone drive signal. The present technology is applicable to an audio processor.

公开(公告)号：US20190007783A1

公开(公告)日：2019-01-03

申请号：US16064139

申请日：2016-12-22

Applicant: SONY CORPORATION

Inventor： TETSU MAGARIYACHI ,  YUHKI MITSUFUJI ,  YU MAENO

IPC: H04S7/00 ,  H04S3/00

CPC classification number: H04S7/304 ,  H04S3/008 ,  H04S2400/01 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/01 ,  H04S2420/11

Abstract: The present technology relates to an audio processing device and method and a program, in which sound can be more efficiently reproduced. An audio processing device includes: a matrix generation unit which generates a vector for each time-frequency with a head-related transfer function obtained by spherical harmonic transform by spherical harmonics as an element by using only the element corresponding to a degree of the spherical harmonics determined for the time-frequency or on the basis of the element common to all users and the element dependent on an individual user; and a head-related transfer function synthesis unit which generates a headphone drive signal of a time-frequency domain by synthesizing an input signal of a spherical harmonic domain and the generated vector. The present technology can be applied to an audio processing device.