公开(公告)号：US20180176681A1

公开(公告)日：2018-06-21

申请号：US15883667

申请日：2018-01-30

Applicant: SONY CORPORATION

Inventor： KOHEI ASADA ,  SHINPEI TSUCHIYA ,  DAIZEN KOBAYASHI ,  KOJI NAGENO

IPC: H04R1/40 ,  H04R3/04 ,  G10L25/84 ,  H04R1/10 ,  H04R3/00 ,  G10L21/0232 ,  H04R11/02 ,  H04R25/00

CPC classification number: H04R1/406 ,  G10L21/0232 ,  G10L25/84 ,  H04R1/10 ,  H04R1/1016 ,  H04R1/1075 ,  H04R3/005 ,  H04R3/04 ,  H04R11/02 ,  H04R25/407 ,  H04R2201/003 ,  H04R2225/43 ,  H04R2410/03 ,  H04R2430/23

Abstract: The present technique relates to an earhole-wearable sound collection device, a signal processing device, and a sound collection method for realizing sound collection at a high S/N ratio, with noise influence being reduced not by a noise reduction process. In the earhole-wearable sound collection device, a microphone that collects emitted speech voice is provided in a space that is substantially sealed off from outside and connects to an ear canal of the wearer (the speaker). With the microphone being located in the space sealed off from outside, emitted speech voice that propagates through the ear canal of the wearer is collected. In a sound collection signal obtained through the ear canal, the emitted speech voice component is dominant over the noise component particularly at low frequencies. Therefore, the S/N ratio of an emitted speech voice collection signal can be improved by extracting the low-frequency component of the sound collection signal with the use of a LPF, for example. Alternatively, an equalizing process for reducing muffled sound that is generated when sound is collected through the ear canal is performed on the sound collection signal. As a result, higher sound quality can be achieved.

公开(公告)号：US20190073992A1

公开(公告)日：2019-03-07

申请号：US16184174

申请日：2018-11-08

Applicant: SONY CORPORATION

Inventor： SHINPEI TSUCHIYA ,  KAZUNOBU OOKURI ,  TETSUNORI ITABASHI ,  KOHEI ASADA

IPC: G10K11/178

Abstract: Provided is the signal processing device including: a signal analyzing unit configured to analyze a second audio signal based on a first audio signal which is input and a sound collected through a microphone; a cancellation processing unit configured to generate a cancellation signal for canceling the second audio signal; and a parameter generating unit configured to generate a control parameter used in the cancellation processing unit based on a result of analysis performed by the signal analyzing unit.

公开(公告)号：US20170301335A1

公开(公告)日：2017-10-19

申请号：US15512737

申请日：2015-08-25

Applicant: SONY CORPORATION

Inventor： SHINPEI TSUCHIYA ,  KAZUNOBU OOKURI ,  TETSUNORI ITABASHI ,  KOHEI ASADA

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K11/17823 ,  G10K11/17827 ,  G10K11/17873 ,  G10K11/17885 ,  G10K2210/1053 ,  G10K2210/3016 ,  G10K2210/3028

Abstract: [Object] To provide a signal processing device capable of effectively using resources for generating a noise cancellation signal. [Solution] Provided is the signal processing device including: a signal analyzing unit configured to analyze a second audio signal based on a first audio signal which is input and a sound collected through a microphone; a cancellation processing unit configured to generate a cancellation signal for canceling the second audio signal; and a parameter generating unit configured to generate a control parameter used in the cancellation processing unit based on a result of analysis performed by the signal analyzing unit.

公开(公告)号：US20150229286A1

公开(公告)日：2015-08-13

申请号：US14609822

申请日：2015-01-30

Applicant: SONY CORPORATION

Inventor： KOHEI ASADA ,  SHINPEI TSUCHIYA ,  KAZUNOBU OOKURI ,  YUSHI YAMABE

IPC: H03G3/00

CPC classification number: H03G9/025 ,  H03G9/005

Abstract: A signal processing apparatus includes a transform unit configured to orthogonally transform an audio signal; an analysis unit configured to analyze the audio signal orthogonally transformed by the transform unit and estimate a very high frequency stationary signal component; and a signal processing unit configured to perform signal processing to reduce the very high frequency stationary signal component estimated by the analysis of the analysis unit with respect to the audio signal.

Abstract translation: 信号处理装置包括被配置为对音频信号进行正交变换的变换单元; 分析单元，被配置为分析由变换单元正交变换的音频信号，并估计非常高频的固定信号分量; 以及信号处理单元，被配置为执行信号处理以减少通过分析单元相对于音频信号的分析估计的非常高频的固定信号分量。

公开(公告)号：US20200236463A1

公开(公告)日：2020-07-23

申请号：US16840641

申请日：2020-04-06

Applicant: SONY CORPORATION

Inventor： KOHEI ASADA ,  SHINPEI TSUCHIYA ,  YUJI KITAZAWA

IPC: H04R3/00 ,  G10K11/178 ,  H04R1/10 ,  H04M1/60

Abstract: This disclosure relates to a headphone device, a terminal device, an information transmitting method, a program, and a headphone system capable of reducing a process burden of parameter control in a noise canceling process of the headphone device. In the terminal device capable of communicating with the headphone device, a parameter appropriate for the noise canceling process is determined based on analysis of noise from outside and position information and indication information to indicate a processing parameter related to the noise canceling process in the headphone device is generated. This is transmitted to the headphone device side. In the headphone device, a processing parameter of the noise canceling process is set according to the indication information. According to this, a process to determine an optimal parameter of the noise canceling process on the headphone device side is not required.