公开(公告)号：US20140307884A1

公开(公告)日：2014-10-16

申请号：US14360959

申请日：2012-11-30

Applicant: Sony Corporation

Inventor： Kohei Asada ,  Koji Nageno ,  Shinpei Tsuchiya ,  Naotaka Tsunoda

IPC: G10L21/0208 ,  G10K11/175

CPC classification number: G10L21/0208 ,  G10K11/175 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3026 ,  G10K2210/3027 ,  H04R1/1016 ,  H04R1/1083 ,  H04R3/00 ,  H04R5/033 ,  H04R5/04

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 reduced noise influence, regardless of noise reduction methods such as the SS method.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, so that emitted speech voice propagating through the ear canal of the wearer is collected. A noise cancelling unit that reduces noise propagating in the internal space having the microphone located therein is further provided to improve the S/N ratio of emitted speech voice collection signals. Further, an equalizing process for reducing the muffled sound generated when the emitted speech voice propagating through the ear canal is collected is performed on the sound collection signal from the microphone. In this manner, higher sound quality is achieved.

Abstract translation: 本技术涉及一种用于以较低的噪声影响以高S / N比实现声音采集的耳机佩戴式声音采集装置，信号处理装置和声音采集方法，而不管诸如SS方法的降噪方法如何。 在耳机可佩戴的收音装置中，收集发出的语音的麦克风设置在从外部基本上被密封并连接到佩戴者的耳道的空间中，使得发射的语音通过耳道 佩戴者被收集。 进一步提供降低在其中具有麦克风的内部空间中传播的噪声的噪声消除单元，以提高发出的话音语音采集信号的S / N比。 此外，对来自麦克风的声音采集信号进行用于减少通过耳道传播的发出的语音通话时产生的消声的均衡处理。 以这种方式，实现更高的音质。

公开(公告)号：US20190385585A1

公开(公告)日：2019-12-19

申请号：US16480381

申请日：2017-12-11

Applicant: Sony Corporation

Inventor： Yoshinori Tamori ,  Kohei Asada ,  Tetsunori Itabashi ,  Shinpei Tsuchiya

IPC: G10K11/178

Abstract: A signal processing apparatus is provided which can suppress external noise without degrading an audio characteristic.Provided is a signal processing apparatus including: an A/D converter configured to output a digital signal having a predetermined sampling frequency and quantization bit number a, the A/D converter including a first delta sigma modulator that performs a first delta sigma modulation process on an input analog signal; a filter unit configured to pass an output of the A/D converter through a digital filter provided with a predetermined filter characteristic and output a digital signal having the sampling frequency and a quantization bit number b; a second delta sigma modulator configured to perform a second delta sigma modulation process on an output of the filter unit and output a digital signal having the sampling frequency and the quantization bit number a; and an addition unit configured to add an output of the second delta sigma modulator and an input digital signal having the sampling frequency and the quantization bit number.

公开(公告)号：US20160127825A1

公开(公告)日：2016-05-05

申请号：US14992906

申请日：2016-01-11

Applicant: SONY CORPORATION

Inventor： Kohei Asada ,  Shinpei Tsuchiya ,  Daizen Kobayashi ,  Koji Nageno

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

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.

Abstract translation: 本技术涉及一种用于以高S / N比实现声音采集的耳机佩戴式声音采集装置，信号处理装置和声音采集方法，其噪声影响不是通过降噪处理而减少的。 在耳机佩戴式收音装置中，收集发出的语音的麦克风设置在基本上与外部密封并连接到佩戴者（扬声器）的耳道的空间中。 麦克风位于从外部密封的空间中，收集通过穿戴者的耳道传播的发出的语音。 在通过耳道获得的声音收集信号中，所发出的语音分量在噪声分量上占优势，特别是在低频下。 因此，例如，通过使用LPF提取声音采集信号的低频分量，可以提高发出的语音语音采集信号的S / N比。 或者，对声音采集信号执行用于减少通过耳道收集声音时产生的消声的均衡处理。 因此，可以实现更高的音质。

公开(公告)号：US09237392B2

公开(公告)日：2016-01-12

申请号：US14360948

申请日：2012-11-30

Applicant: Sony Corporation

Inventor： Kohei Asada ,  Shinpei Tsuchiya ,  Daizen Kobayashi ,  Koji Nageno

IPC: H04R1/10 ,  H04R3/00 ,  H04R3/04 ,  H04R1/40 ,  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.

Abstract translation: 本技术涉及一种用于以高S / N比实现声音采集的耳机佩戴式声音采集装置，信号处理装置和声音采集方法，其噪声影响不是通过降噪处理而减少的。 在耳机佩戴式收音装置中，收集发出的语音的麦克风设置在基本上与外部密封并连接到佩戴者（扬声器）的耳道的空间中。 麦克风位于从外部密封的空间中，收集通过穿戴者的耳道传播的发出的语音。 在通过耳道获得的声音收集信号中，所发出的语音分量在噪声分量上占优势，特别是在低频下。 因此，例如，通过使用LPF提取声音采集信号的低频分量，可以提高发出的语音语音采集信号的S / N比。 或者，对声音采集信号执行用于减少通过耳道收集声音时产生的消声的均衡处理。 因此，可以实现更高的音质。

公开(公告)号：US11257476B2

公开(公告)日：2022-02-22

申请号：US16979155

申请日：2019-03-08

Applicant: SONY CORPORATION

Inventor： Shigetoshi Hayashi ,  Kohei Asada ,  Shinpei Tsuchiya ,  Kazunobu Ookuri

IPC: A61F11/06 ,  G10K11/178 ,  G10K11/16

Abstract: Provided is a signal processing apparatus of a plurality of signal processing apparatuses that includes a noise canceling processing unit capable of connecting one or more input portions and one or more output portions, and performs a noise canceling processing. Signal processing apparatuses of the plurality of signal processing apparatuses are connected to one another.

公开(公告)号：US11070910B2

公开(公告)日：2021-07-20

申请号：US15883667

申请日：2018-01-30

Applicant: SONY CORPORATION

Inventor： Kohei Asada ,  Shinpei Tsuchiya ,  Daizen Kobayashi ,  Koji Nageno

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

Abstract: The present technique relates to a processing device and a processing method for realizing sound collection at a high S/N ratio, with noise influence being reduced not by a noise reduction process. In the processing 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 Further, 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.

公开(公告)号：US20190266991A1

公开(公告)日：2019-08-29

申请号：US16307623

申请日：2017-04-18

Applicant: Sony Corporation

Inventor： Shigetoshi Hayashi ,  Kohei Asada ,  Tetsunori Itabashi ,  Kazuma Yoshii ,  Mitsuhiro Suzuki ,  Shinpei Tsuchiya ,  Yushi Yamabe

IPC: G10K11/178 ,  H04R1/10

Abstract: [Object] To provide a sound processing device capable of effectively reducing ambient noise at low cost.[Solution] Provided is a sound processing device including: a first sound collector configured to collect a first noise signal from a noise source of noise leaking into a casing mounted to a user's ear; a first signal processing unit configured to form a first noise reduction signal used to reduce noise at a cancellation point on the basis of the first noise signal; a second signal processing unit configured to form a second noise reduction signal used to reduce noise at a cancellation point with respect to a first pseudo noise signal; an adder configured to add the first noise reduction signal and the second noise reduction signal; and a sound emitter configured to emit an output of the adder into the casing as sound. The first pseudo noise signal is a signal obtained by subtracting an output of the adder applied with a simulation transfer characteristic from an output of the first sound collector, the simulation transfer characteristic being obtained by simulating a transfer characteristic from the sound emitter to the first sound collector.

公开(公告)号：US20210027758A1

公开(公告)日：2021-01-28

申请号：US17045157

申请日：2019-04-01

Applicant: Sony Corporation

Inventor： Shinpei Tsuchiya ,  Shigetoshi Hayashi ,  Kohei Asada ,  Kazunobu Ookuri

IPC: G10K11/178

Abstract: A signal processing apparatus that performs noise cancellation processing for reducing noise by selecting, from among a plurality of input units and a plurality of output units that respectively correspond to the plurality of input units, the input unit and the output unit to be used in noise cancellation processing.

公开(公告)号：US10733971B2

公开(公告)日：2020-08-04

申请号：US16307623

申请日：2017-04-18

Applicant: Sony Corporation

Inventor： Shigetoshi Hayashi ,  Kohei Asada ,  Tetsunori Itabashi ,  Kazuma Yoshii ,  Mitsuhiro Suzuki ,  Shinpei Tsuchiya ,  Yushi Yamabe

IPC: G10K11/178 ,  H04R1/10

Abstract: [Object] To provide a sound processing device capable of effectively reducing ambient noise at low cost.[Solution] Provided is a sound processing device including: a first sound collector configured to collect a first noise signal from a noise source of noise leaking into a casing mounted to a user's ear; a first signal processing unit configured to form a first noise reduction signal used to reduce noise at a cancellation point on the basis of the first noise signal; a second signal processing unit configured to form a second noise reduction signal used to reduce noise at a cancellation point with respect to a first pseudo noise signal; an adder configured to add the first noise reduction signal and the second noise reduction signal; and a sound emitter configured to emit an output of the adder into the casing as sound. The first pseudo noise signal is a signal obtained by subtracting an output of the adder applied with a simulation transfer characteristic from an output of the first sound collector, the simulation transfer characteristic being obtained by simulating a transfer characteristic from the sound emitter to the first sound collector.

公开(公告)号：US10152961B2

公开(公告)日：2018-12-11

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

Abstract: Provided is a 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.