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公开(公告)号：US20230300553A1
公开(公告)日：2023-09-21
申请号：US18179484
申请日：2023-03-07
Applicant: YAMAHA CORPORATION
Inventor： Satoshi UKAI , Masashi SUZUKI
Abstract: The audio signal processing method in accordance with one embodiment receives an audio signal, obtains a first image, estimates room information based on the obtained first image, sets an acoustic parameter according to the estimated room information, applies sound processing to the audio signal according to the set acoustic parameter, and outputs the audio signal subjected to the sound processing.
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公开(公告)号：US20200152221A1
公开(公告)日：2020-05-14
申请号：US16738893
申请日：2020-01-09
Applicant: Yamaha Corporation
Inventor： Kohei KANAMORI , Satoshi UKAI
IPC: G10L21/0232 , G10L25/51
Abstract: A sound collection device includes a sensor, a database, a microphone, and an electronic controller. The sensor detects a state of at least one of the sound collection device or a device equipped with the sound collection device, or both. The database is a database of noise sounds. The electronic controller includes a signal processing unit configured to read at least one noise sound from the database based on a detection value of the sensor and carry out a noise reduction process to reduce noise from a sound signal acquired by the microphone based on the at least one noise sound read from the database.
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公开(公告)号：US20220116729A1
公开(公告)日：2022-04-14
申请号：US17492896
申请日：2021-10-04
Applicant: YAMAHA CORPORATION
Inventor： Satoshi UKAI , Ryo TANAKA
Abstract: An audio signal processing method includes receiving an audio signal corresponding to a voice of a talker, obtaining an image of the talker, estimating position information of the talker using the image of the talker, generating, according to the estimated position information, a correction filter configured to compensate for an attenuation of the voice of the talker, performing filter processing on the audio signal using the generated correction filter, and outputting the audio signal on which the filter processing has been performed.
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公开(公告)号：US20220036910A1
公开(公告)日：2022-02-03
申请号：US17386631
申请日：2021-07-28
Applicant: YAMAHA CORPORATION
Inventor： Ryo TANAKA , Satoshi UKAI
Abstract: A filtering method includes: receiving a first audio signal and a second audio signal that include sound emitted from a same sound source at different volumes; generating a filter signal by convoluting adaptive filter coefficients into the second audio signal; removing components of the filter signal from the first audio signal; and limiting a gain of the adaptive filter coefficients to 1.0 or less.
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公开(公告)号：US20220224747A1
公开(公告)日：2022-07-14
申请号：US17564539
申请日：2021-12-29
Applicant: YAMAHA CORPORATION
Inventor： Satoshi UKAI
Abstract: A signal processing method includes obtaining, by a signal processing apparatus, a network delay time with respect to a device connected to the signal processing apparatus via a network, obtaining an input signal, determining an allowable upper limit of a delay time for an output signal corresponding to the obtained input signal based on the obtained network delay time and a total allowable delay time, selecting a signal processing having a longest delay time that is less than or equal to the allowable upper limit of the delay time, performing the selected signal processing on the obtained input signal, and transmitting the obtained input signal on which the selected signal processing has been performed, as the output signal, to the device connected to the signal processing apparatus via the network.
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Patent Agency Ranking
公开(公告)号：US20220115021A1
公开(公告)日：2022-04-14
申请号：US17449983
申请日：2021-10-05
Applicant: Yamaha Corporation
Inventor： Satoshi UKAI , Ryo Tanaka
Abstract: A talker prediction method obtains a voice from a plurality of talkers, records a conversation history of the plurality of talkers, identifies a talker of the obtained voice, and predicts a next talker among the plurality of talkers based on the identified talker and the conversation history.
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7.发明申请SOUND EMISSION AND COLLECTION DEVICE, AND SOUND EMISSION AND COLLECTION METHOD 有权声发射和收集装置，以及声发射和收集方法公开(公告)号：US20170041445A1
公开(公告)日：2017-02-09
申请号：US15304159
申请日：2015-04-14
Applicant: YAMAHA CORPORATION
Inventor： Satoshi UKAI , Takashi YAMAKAWA
CPC classification number: H04M1/6033 , H04M1/6016 , H04M1/62 , H04M9/082 , H04M2203/509
Abstract: A sound emission and collection device includes a speaker, a filter processing a sound emission signal, microphones, echo cancellers cancelling regression sound signals of the sound emitted by the speaker from the sound collection signals of the corresponding microphones, a first integration section integrating adaptive filter coefficients taken out from the plurality of echo cancellers, a reverberation time estimation section estimating the reverberation time for each frequency band in the space in which the speaker and the plurality of microphones are present on the basis of the integrated adaptive filter coefficient, and an arithmetic operation section specifying a frequency band having a long reverberation time from the sound emission signal based on the estimated reverberation time, calculating a filter coefficient for suppressing power of the specified frequency band, and setting the filter coefficient to the filter.
Abstract translation: 声音发射和收集装置包括扬声器，处理声音发射信号的滤波器，麦克风，回声消除器，从相应的麦克风的声音采集信号中消除由扬声器发出的声音的回归声音信号;第一积分部分集成自适应滤波器 从多个回波消除器中取出的系数，混响时间估计部，基于积分自适应滤波器系数，估计扬声器和多个麦克风存在的空间中的每个频带的混响时间，以及算术 操作部，基于估计的混响时间，从声音发出信号指定具有长的混响时间的频带，计算用于抑制规定频带的功率的滤波器系数，以及将滤波器系数设定为滤波器。
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公开(公告)号：US20150199954A1
公开(公告)日：2015-07-16
申请号：US14668918
申请日：2015-03-25
Applicant: Yamaha Corporation
Inventor： Satoshi UKAI , Takashi YAMAKAWA
IPC: G10K11/175
CPC classification number: G10K11/175 , H04K3/42 , H04K3/43 , H04K3/45 , H04K3/825 , H04K3/94 , H04K2203/12
Abstract: A first calculating portion calculates a model sound index value which is an index value of the maximum value of power for each frequency band of the model sound which is a model of a target sound. A second calculating portion calculates a source sound index value which is an index value of power for each frequency band with respect to each of frames extracted by a predetermined time length from a source sound signal. A third calculating portion calculates a performance index value indicating performance of masking the model sound by a sound represented by a block formed of a predetermined number of consecutive frames extracted from the source sound signal, by using the model sound index value and the source sound index value. A frame selecting portion determines a block to be used for generating the masker sound based on the performance index value.
Abstract translation: 第一计算部分计算作为目标声音的模型的模型声音的每个频带的功率的最大值的索引值的模型声音指数值。 第二计算部分计算源声音指数值，其是针对从源声音信号提取的预定时间长度的每个帧的每个频带的功率的索引值。 第三计算部分通过使用模型声音指标值和源声音指数来计算指示通过由从源声音信号提取的预定数量的连续帧形成的块所表示的声音来屏蔽模型声音的性能指标值 值。 帧选择部分基于性能指标值确定要用于生成掩蔽声的块。
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公开(公告)号：US20230262388A1
公开(公告)日：2023-08-17
申请号：US18193713
申请日：2023-03-31
Applicant: YAMAHA CORPORATION
Inventor： Satoshi UKAI , Takamitsu AOKI , Motoichi TAMURA , Shinya KOSEKI , Hideaki TAKEHISA
IPC: H04R3/02 , G10L25/51 , G10L21/0232
CPC classification number: H04R3/02 , G10L21/0232 , G10L25/51 , G10L2021/02082 , H04R2430/01
Abstract: A sound processing method includes: receiving, using the communication device, from the remote apparatus, a first sound signal representing first sound generated by a user of the remote apparatus; emitting, using the sound emitting apparatus, the first sound represented by the first sound signal; receiving, using the sound receiving apparatus, sound that includes second sound generated by a user of the sound processing system; generating a second sound signal by sound processing, using processing parameters, a reception sound signal generated by the sound receiving apparatus; transmitting, using the communication device, the second sound signal to the remote apparatus; updating the processing parameters based on the first sound signal or the reception sound signal; and stopping the updating of the processing parameters in a state where musical sound is included in at least one of the first sound or the second sound.
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公开(公告)号：US20230238013A1
公开(公告)日：2023-07-27
申请号：US18098522
申请日：2023-01-18
Applicant: Yamaha Corporation
Inventor： Masashi SUZUKI , Satoshi UKAI
IPC: G10L21/0232
CPC classification number: G10L21/0232
Abstract: A sound processing apparatus includes sound collection circuity that collects a sound and generates a first sound signal, and processing circuitry that estimates an estimated noise, controls a gain of the first sound signal and outputs a second sound signal based on the estimated noise, performs filter processing to reduce a component of a predetermined frequency band of the second sound signal based at least in part on the estimated noise.
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