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21.发明申请公开(公告)号：US20210201865A1
公开(公告)日：2021-07-01
申请号：US17204340
申请日：2021-03-17
Applicant: YAMAHA CORPORATION
Inventor： Misa UEHARA , Akira MAEZAWA
Abstract: An information processing method implemented by a computer, the information processing method including, generating pedal data representing an operation period of a pedal that extends sound production by key depression, from playing data representing a playing content.
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公开(公告)号：US20210005173A1
公开(公告)日：2021-01-07
申请号：US17028386
申请日：2020-09-22
Applicant: YAMAHA CORPORATION
Inventor： Akira MAEZAWA , Bochen LI
Abstract: An apparatus is provided that accurately estimates a point at which a musical performance is started by a player. The apparatus includes the musical performance analysis unit 32, and the musical performance analysis unit 32 obtains action data that includes a time series of feature data representing actions made by a player during a musical performance for a reference period and estimating a sound-production point based on the action data at an estimated point using a learned model L.
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公开(公告)号：US20200160821A1
公开(公告)日：2020-05-21
申请号：US16752039
申请日：2020-01-24
Applicant: YAMAHA CORPORATION
Inventor： Akira MAEZAWA
Abstract: An information processing method according to the present invention includes providing first musical piece information representing contents of a musical piece and performance information relating to a past performance prior to one unit period within the musical piece to a learner that has undergone learning relating to a specific tendency that relates to a performance, and generating, for the one unit period, performance information that is based on the specific tendency with the learner.
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公开(公告)号：US20170256246A1
公开(公告)日：2017-09-07
申请号：US15598351
申请日：2017-05-18
Applicant: YAMAHA CORPORATION
Inventor： Akira MAEZAWA , Takahiro HARA , Yoshinari NAKAMURA
CPC classification number: G10H1/40 , G10G1/00 , G10H1/00 , G10H1/0033 , G10H1/36 , G10H2210/076 , G10H2210/391 , G10H2240/175
Abstract: The information providing method includes: sequentially identifying a performance speed at which a user performs a piece of music; identifying, in the piece of music, a performance position that is performed by the user; setting an adjustment amount in accordance with a temporal variation in the identified performance speed; and providing the user with music information corresponding to a time point that is later, by the adjustment amount, than a time point that corresponds to the performance position identified in the piece of music.
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25.发明申请公开(公告)号：US20160379514A1
公开(公告)日：2016-12-29
申请号：US15039466
申请日：2015-01-06
Applicant: YAMAHA CORPORATION
Inventor： Kenji MATAHIRA , Haruki UEHARA , Akira MAEZAWA
IPC: G09B15/00 , G10L21/0272 , G10F1/02 , G10H1/00
CPC classification number: G09B15/00 , G10F1/00 , G10F1/02 , G10H1/0058 , G10H1/0066 , G10H1/365 , G10H7/00 , G10H2230/011 , G10H2240/171 , G10H2240/295 , G10L21/0272 , G10L25/93
Abstract: A musical-performance-information transmission method using a first instrument and a second instrument, wherein the first instrument produces sounds in accordance with a user's musical performance and generates musical-performance data in accordance with the produced sounds and the second instrument produces sounds by receiving the musical performance data via a communication means. In the musical-performance-information transmission method, a mixed-sound signal is generated in accordance with a mixture of sounds produced by the first instrument and sounds that are different from the sounds produced by the first instrument, a reference signal is generated in accordance with the sounds produced by the first instrument, and on the basis of the mixed-sound signal and the reference signal, the reference signal is removed from the mixed-sound signal, generating a separated signal, and sound is emitted on the basis of said separated signal.
Abstract translation: 一种使用第一仪器和第二仪器的演奏信息传播方法，其中所述第一乐器根据用户的演奏产生声音，并且根据所产生的声音产生演奏数据，并且所述第二乐器通过接收产生声音 经由通信装置的演奏数据。 在演奏信息发送方法中，根据由第一乐器产生的声音的混合和与第一乐器产生的声音不同的声音产生混合声音信号，根据产生参考信号 利用第一乐器产生的声音，并且基于混合声音信号和参考信号，从混合声音信号中去除参考信号，产生分离的信号，并且基于所述混合声音信号和参考信号发出声音 分离信号。
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Patent Agency Ranking
26.发明公开公开(公告)号：US20240129669A1
公开(公告)日：2024-04-18
申请号：US18395901
申请日：2023-12-26
Applicant: YAMAHA CORPORATION
Inventor： Masaru TANAKA , Yoshifumi MIZUNO , Takashi MORI , Akira MAEZAWA , Ryunosuke DAIDO , Kazunobu KONDO
Abstract: A distribution system includes a device control circuit that receives a first sound signal and a second sound signal that are related to a performance sound to be distributed. The device control circuit also receives meta-data indicating a type of the first sound signal and a type of the second sound signal. The device control circuit also receives sound environment data indicating a sound characteristic of a sound appliance. Based on a combination of the type of the first sound signal and the sound characteristic or a combination of the type of the second sound signal and the sound characteristic, the device control circuit controls the first sound signal or the second sound signal to be output to the sound appliance.
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公开(公告)号：US20230274722A1
公开(公告)日：2023-08-31
申请号：US18311822
申请日：2023-05-03
Applicant: Yamaha Corporation
Inventor： Takuya FUJISHIMA , Akira MAEZAWA
CPC classification number: G10G7/00 , G10H1/0008 , G10H2210/076 , G10H2220/005
Abstract: A signal processing device includes an electronic controller including at least one processor. The electronic controller is configured to execute a reception unit, a generation unit, and a processing unit. The reception unit is configured to receive first time-series data that include sound data, and second time-series data that are generated based on the first time-series data and that include at least data indicating a timing of a human action. The generation unit is configured to generate, based on the second time-series data, third time-series data notifying of the timing of the human action. The processing unit is configured to synchronize and output an output signal based on the first time-series data and an output signal based on the third time-series data, such that the timing of the human action for the first time-series data and the timing of the human action for the third time-series data match.
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公开(公告)号：US20230014736A1
公开(公告)日：2023-01-19
申请号：US17950804
申请日：2022-09-22
Applicant: Yamaha Corporation
Inventor： Akira MAEZAWA
Abstract: A performance agent training method realized by at least one computer includes observing a first performance of a musical piece by a performer, generating, by a performance agent, performance data of a second performance to be performed in parallel with the first performance, outputting the performance data such that the second performance is performed in parallel with the first performance of the performer, acquiring a degree of satisfaction of the performer with respect to the second performance performed based on the output performance data, and training the performance agent by reinforcement learning, using the degree of satisfaction as a reward.
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公开(公告)号：US20230014315A1
公开(公告)日：2023-01-19
申请号：US17952077
申请日：2022-09-23
Applicant: Yamaha Corporation
Inventor： Akira MAEZAWA , Katsumi ISHIKAWA
Abstract: A trained model establishment method realized by a computer includes acquiring a plurality of datasets each of which is formed by a combination of first performance data of a first performance by a performer, second performance data of a second performance performed together with the first performance, and a satisfaction label indicating a degree of satisfaction of the performer, and executing machine learning of a satisfaction estimation model by using the plurality of datasets. In the machine learning, the satisfaction estimation model is trained such that, for each of the datasets, a result of estimating a degree of satisfaction the performer from the first performance data and the second performance data matches the degree of the satisfaction indicated by the satisfaction label.
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公开(公告)号：US20220383842A1
公开(公告)日：2022-12-01
申请号：US17885486
申请日：2022-08-10
Applicant: Yamaha Corporation
Inventor： Shoken KANEKO , Misa GOTO , Akira MAEZAWA
IPC: G10H1/00
Abstract: An estimation model construction method realized by a computer includes preparing a plurality of training data that include first training data that include first feature amount data that represent a first feature amount of a performance sound of a musical instrument and first onset data that represent a pitch at which an onset exists, and second training data that include second feature amount data that represent a second feature amount of sound generated by a sound source of a type different than the musical instrument, and second onset data that represent that an onset does not exist, and constructing, by machine learning using the plurality of training data, an estimation model that estimates, from a feature amount data that represent a feature amount of a performance sound of the musical instrument, estimated onset data that represent a pitch at which an onset exists.
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