Signal processing apparatus, method, and program

    公开(公告)号:US11024280B2

    公开(公告)日:2021-06-01

    申请号:US16880662

    申请日:2020-05-21

    申请人: Sony Corporation

    摘要: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.

    SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND COMPUTER PROGRAM

    公开(公告)号:US20190266991A1

    公开(公告)日:2019-08-29

    申请号:US16307623

    申请日:2017-04-18

    申请人: Sony Corporation

    IPC分类号: G10K11/178 H04R1/10

    摘要: [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.

    Filter circuit for noise cancellation, noise reduction signal production method and noise canceling system

    公开(公告)号:US10297246B2

    公开(公告)日:2019-05-21

    申请号:US14961217

    申请日:2015-12-07

    申请人: Sony Corporation

    IPC分类号: G10K11/16 G10K11/178

    摘要: Provided is a filter circuit for producing a noise reduction signal for reducing a noise signal collected by a microphone, including: a digital section including an analog/digital conversion section configured to convert the noise signal into a digital noise signal, a digital filter section configured to produce a digital noise reduction signal based on the digital noise signal, and a digital/analog conversion section configured to convert the digital noise reduction signal into an analog noise reduction signal; an analog path connected in parallel to said digital section and configured to output the noise signal as it is or after processed by an analog filter; and a synthesis section configured to synthesize the analog noise reduction signal outputted from said digital/analog conversion section of said digital section and the analog signal outputted from said analog path to produce a noise reduction signal to be used for noise reduction.

    SIGNAL PROCESSING APPARATUS, METHOD, AND PROGRAM

    公开(公告)号:US20200286461A1

    公开(公告)日:2020-09-10

    申请号:US16880662

    申请日:2020-05-21

    申请人: Sony Corporation

    摘要: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.

    Sound processing device, sound processing method, and computer program

    公开(公告)号:US10733971B2

    公开(公告)日:2020-08-04

    申请号:US16307623

    申请日:2017-04-18

    申请人: Sony Corporation

    IPC分类号: G10K11/178 H04R1/10

    摘要: [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.

    Signal processing device and signal processing method

    公开(公告)号:US10152961B2

    公开(公告)日:2018-12-11

    申请号:US15512737

    申请日:2015-08-25

    申请人: SONY CORPORATION

    IPC分类号: G10K11/178

    摘要: 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.

    INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD THEREOF

    公开(公告)号:US20180082672A1

    公开(公告)日:2018-03-22

    申请号:US15560149

    申请日:2016-03-11

    申请人: Sony Corporation

    IPC分类号: G10K11/175

    摘要: The present technology relates to an information processing apparatus and an information processing method thereof that allow the realization of predetermined functions in information processing apparatuses of many types. An information processing system has a first information processing apparatus and a second information processing apparatus. The first information processing apparatus has a parameter supply block configured to supply an intermediate parameter having a format common to two or more second information processing apparatuses, the intermediate parameter being a parameter unique to the first information processing apparatus. The second information processing apparatus has a generation block configured to generate an adjustment parameter suitable for the second information processing apparatus from an intermediate parameter received from the first information processing apparatus and a signal computation block configured to compute a signal on the basis of the adjustment parameter generated by the generation block.

    INPUT DEVICE AND TRANSMITTING METHOD, HOST DEVICE AND RECEIVING METHOD, AND SIGNAL PROCESSING SYSTEM AND TRANSCEIVING METHOD
    9.
    发明申请
    INPUT DEVICE AND TRANSMITTING METHOD, HOST DEVICE AND RECEIVING METHOD, AND SIGNAL PROCESSING SYSTEM AND TRANSCEIVING METHOD 审中-公开
    输入装置和发送方法,主机装置和接收方法以及信号处理系统和收发方法

    公开(公告)号:US20160127815A1

    公开(公告)日:2016-05-05

    申请号:US14893741

    申请日:2014-05-26

    申请人: SONY CORPORATION

    IPC分类号: H04R1/06 H04R3/00

    摘要: The present technology relates to an input device, a transmitting method, a host device, a receiving method, a signal processing system, and a transceiving method, which are capable of easily performing transmission and reception of multiplexed data obtained by multiplexing a plurality of electric signals between a plug device including a plug and a jack device including a jack. An input device detects whether or not the jack device including the jack is an associated device capable of dealing the multiplexed data obtained by multiplexing a plurality of electric signals, and transmits the multiplexed data via the plug when the jack device is the associated device. The host device detects whether or not the plug device including the plug is the associated device, and receives the multiplexed data transmitted from the plug device via the jack when the plug device is the associated device. The present technology can be applied to a music player having a jack and a headset having a plug, for example.

    摘要翻译: 本技术涉及一种输入装置,发送方法,主机装置,接收方法,信号处理系统和收发方法,其能够容易地进行多路复用数据的发送和接收, 包括插头的插头装置和包括插孔的插孔装置之间的信号。 输入装置检测包括插座的插孔装置是否是能够处理通过多路复用多个电信号而获得的多路复用数据的相关装置,并且当插孔装置是关联装置时,经由插头发送多路复用数据。 主机设备检测包括插头的插头设备是否是相关联的设备,并且当插头设备是相关设备时,经由插座接收从插头设备发送的复用数据。 例如,本技术可以应用于具有插头和具有插头的耳机的音乐播放器。