公开(公告)号：US10580428B2

公开(公告)日：2020-03-03

申请号：US15501124

申请日：2015-08-06

Applicant: SONY CORPORATION

Inventor： Keiichi Osako ,  Takashi Shibuya ,  Toshiyuki Sekiya ,  Mototsugu Abe

IPC: G10L21/00 ,  G10L21/0232 ,  G10L21/0264 ,  G10L25/84 ,  H04R1/40 ,  G10L21/0208 ,  H04R3/00 ,  H04M9/08 ,  G10L21/0216

Abstract: The present technology relates to an audio processing apparatus, an audio processing method, and a program which enable to appropriately eliminate a noise. An audio processing apparatus includes a sound collector which collects audio, an audio enhancer which enhances audio to be extracted using an audio signal collected by the sound collector, an audio attenuator which attenuates the audio to be extracted using the audio signal collected by the sound collector, a noise environment estimator which estimates a surrounding noise environment, and a post-filtering unit which performs post-filtering processing using an audio-enhanced signal from the audio enhancer and an audio-attenuated signal from the audio attenuator, in which the post-filtering unit sets strength of processing for noise elimination according to the noise environment by the noise environment estimator. The present technology can be applied to an apparatus which performs audio recognition processing, such as a mobile phone.

公开(公告)号：US10440475B2

公开(公告)日：2019-10-08

申请号：US15761275

申请日：2016-08-22

Applicant: Sony Corporation

Inventor： Kenichi Makino ,  Kohei Asada ,  Keiichi Osako ,  Shigetoshi Hayashi

IPC: H04R5/027 ,  H04R3/00 ,  H04S1/00 ,  H04R1/40 ,  H04R3/04

Abstract: [Object] To provide a signal processing device, a signal processing method, and a program.[Solution] The signal processing device includes: a first arithmetic processing unit that performs first suppressing processing for suppressing a first audio signal based on a first microphone on a basis of a second audio signal based on a second microphone; and a second arithmetic processing unit that performs second suppressing processing for suppressing the second audio signal on a basis of the first audio signal.

公开(公告)号：US20190198036A1

公开(公告)日：2019-06-27

申请号：US16326956

申请日：2017-06-01

Applicant: Sony Corporation

Inventor： Keiichi Osako ,  Yuhki Mitsufuji ,  Kohei Asada

IPC: G10L21/028 ,  G10L25/30 ,  G06N20/00 ,  G06N3/08 ,  G06F17/16

CPC classification number: G10L21/028 ,  G06F17/16 ,  G06N3/08 ,  G06N20/00 ,  G10L21/0308 ,  G10L25/30

Abstract: [Object] To provide a sound source separation technology capable of improving the separation performance.[Solution] An information processing apparatus including: an acquisition section configured to acquire an observation signal obtained by observing a sound; and a sound source separation section configured to separate the observation signal acquired by the acquisition section into a plurality of separated signals corresponding to a plurality of assumed sound sources by applying a non-linear function to a matrix product of an input vector and a coefficient vector corresponding to each of the plurality of sound sources.

公开(公告)号：US20210274304A1

公开(公告)日：2021-09-02

申请号：US17262167

申请日：2019-07-22

Applicant: Sony Corporation

Inventor： Keiichi Osako ,  Yuhki Mitsufuji

IPC: H04S7/00 ,  G06F3/041 ,  H04R5/02 ,  H04R5/04

Abstract: An information processing apparatus, an information processing system, an information processing method, and a program according to the present disclosure each include a sound-source position determining section (131) and an output control section (133). The sound-source position determining section (131) determines a position of a virtual sound source that is generated by a speaker array (20) and produces a spherical wave. The output control section (133) controls an output from the speaker array (20) to cause the virtual sound source to be located at the position. The virtual sound source outputs voice information corresponding to visual information that is information shown on a display (30).

公开(公告)号：US20180262837A1

公开(公告)日：2018-09-13

申请号：US15761275

申请日：2016-08-22

Applicant: Sony Corporation

Inventor： Kenichi Makino ,  Kohei Asada ,  Keiichi Osako ,  Shigetoshi Hayashi

IPC: H04R5/027 ,  H04R1/40 ,  H04R3/04

CPC classification number: H04R5/027 ,  H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R2430/21 ,  H04R2499/11 ,  H04S1/002

Abstract: [Object] To provide a signal processing device, a signal processing method, and a program.[Solution] The signal processing device includes: a first arithmetic processing unit that performs first suppressing processing for suppressing a first audio signal based on a first microphone on a basis of a second audio signal based on a second microphone; and a second arithmetic processing unit that performs second suppressing processing for suppressing the second audio signal on a basis of the first audio signal.

公开(公告)号：US09674606B2

公开(公告)日：2017-06-06

申请号：US14057066

申请日：2013-10-18

Applicant: Sony Corporation

Inventor： Keiichi Osako ,  Mototsugu Abe

IPC: G10L21/02 ,  H04R3/00 ,  G10L21/0208 ,  G10L21/0232

CPC classification number: H04R3/00 ,  G10L21/0208 ,  G10L21/0232 ,  H04R2499/11

Abstract: There is provided a signal processing device including a feature amount extraction unit configured to extract, from a frequency-domain signal obtained by frequency conversion on a voice signal, a feature amount of the frequency-domain signal, and a determination unit configured to determine, based on the extracted feature amount, presence or absence of noise in the voice signal within a predetermined section. The feature amount is composed of a plurality of elements. The plurality of elements contain an element defined based on a correlation value between a feature amount waveform which is a waveform according to the frequency-domain signal in the voice signal within the predetermined section and a feature amount waveform within another section sequential in time to the predetermined section.

公开(公告)号：US11462200B2

公开(公告)日：2022-10-04

申请号：US17266486

申请日：2019-07-30

Applicant: Sony Corporation

Inventor： Keiichi Osako ,  Yuhki Mitsufuji ,  Masafumi Takahashi ,  Yukara Ikemiya

IPC: G10K11/175 ,  H04R3/12 ,  G10L25/51 ,  H04R1/40 ,  G06V40/10

Abstract: The present technology relates to a signal processing apparatus and method, and a program that can easily make a leaking sound difficult to hear.
A signal processing apparatus includes a masking sound generation unit that, in a case where a first content is reproduced in a first region and a second content is reproduced in a second region by wave field synthesis using a speaker array, generates a masking sound for masking a sound of the first content and a sound of the second content heard in a region between the first region and the second region. The present technology can be applied to content reproduction systems.

公开(公告)号：US11031028B2

公开(公告)日：2021-06-08

申请号：US16326956

申请日：2017-06-01

Applicant: Sony Corporation

Inventor： Keiichi Osako ,  Yuhki Mitsufuji ,  Kohei Asada

IPC: G10L21/00 ,  G10L21/028 ,  G10L25/30 ,  G06N20/00 ,  G06F17/16 ,  G06N3/08 ,  G10L21/0308

Abstract: [Object] To provide a sound source separation technology capable of improving the separation performance.
[Solution] An information processing apparatus including: an acquisition section configured to acquire an observation signal obtained by observing a sound; and a sound source separation section configured to separate the observation signal acquired by the acquisition section into a plurality of separated signals corresponding to a plurality of assumed sound sources by applying a non-linear function to a matrix product of an input vector and a coefficient vector corresponding to each of the plurality of sound sources.

公开(公告)号：US11543521B2

公开(公告)日：2023-01-03

申请号：US16482626

申请日：2017-12-07

Applicant: SONY CORPORATION

Inventor： Keiichi Osako ,  Kohei Asada ,  Tetsunori Itabashi ,  Kazuma Yoshii ,  Kenichi Makino ,  Yasunobu Murata ,  Shigetoshi Hayashi

IPC: G01S15/52 ,  G01S7/52 ,  G01S7/539 ,  G01S15/58

Abstract: To provide a mechanism for selectively taking an external sound from an appropriate sound source into an internal space of a moving object. An information processing apparatus including an acquisition unit configured to acquire an audio signal from a sound source existing outside a moving object, a generation unit configured to generate an audio signal from a target sound source at a distance from the moving object, the distance being a distance according to a speed of the moving object, of the sound sources, on the basis of the audio signal acquired by the acquisition unit, and an output control unit configured to output the audio signal generated by the generation unit toward an internal space of the moving object.

公开(公告)号：US20210241746A1

公开(公告)日：2021-08-05

申请号：US17266486

申请日：2019-07-30

Applicant: Sony Corporation

Inventor： Keiichi Osako ,  Yuhki Mitsufuji ,  Masafumi Takahashi ,  Yukara Ikemiya

IPC: G10K11/175 ,  H04R1/40 ,  H04R3/12 ,  G06K9/00 ,  G10L25/51

Abstract: The present technology relates to a signal processing apparatus and method, and a program that can easily make a leaking sound difficult to hear.
A signal processing apparatus includes a masking sound generation unit that, in a case where a first content is reproduced in a first region and a second content is reproduced in a second region by wave field synthesis using a speaker array, generates a masking sound for masking a sound of the first content and a sound of the second content heard in a region between the first region and the second region. The present technology can be applied to content reproduction systems.