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公开(公告)号：US20240007815A1
公开(公告)日：2024-01-04
申请号：US18340183
申请日：2023-06-23
Applicant: YAMAHA CORPORATION
Inventor： Keiichiro SOMA , Arata IMAI , Takeshi NONAKA , Masaaki OKABAYASHI , Yu TAKAHASHI , Kotaro TERADA , Kenji ISHIZUKA
CPC classification number: H04S7/30 , H04S7/40 , G06F3/165 , H04S3/008 , H03G3/3005 , H04S2400/01 , H04S2400/13 , H03G2201/103
Abstract: An audio signal processing method for a mixing apparatus including a plurality of channels, the audio signal processing method includes selecting at least a first channel among the plurality of channels, inputting an audio signal of the selected first channel, specifying setting data to be set to the mixing apparatus, based on time-series sound volume data for the first channel, or data on a second channel different from the first channel, among the plurality of channels, and outputting the specified setting data.
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公开(公告)号：US20210089926A1
公开(公告)日：2021-03-25
申请号：US17112135
申请日：2020-12-04
Applicant: YAMAHA CORPORATION
Inventor： Hiroaki NAKAJIMA , Yu TAKAHASHI
Abstract: A machine learning apparatus includes a memory storing instructions and a processor that implements the stored instructions to execute a plurality of tasks. The tasks include an obtaining task that obtains a mixture signal containing a first component and a second component, a first generating task that generates a first signal that emphasize the first component inputting a mixture signal to a neural network, a second generating task that generates a second signal by modifying the first signal, a calculating task that calculates an evaluation index from the second signal, and a training task that trains the neural network with the evaluation index.
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公开(公告)号：US20190293514A1
公开(公告)日：2019-09-26
申请号：US16440453
申请日：2019-06-13
Applicant: Yamaha Corporation
Inventor： Yu TAKAHASHI
Abstract: A signal processing method includes receiving a signal that rises in response to a physical change and falls in response to an opposite physical change that is opposite to the physical change from a sensor that outputs the signal, and correcting a signal lag as either a rising of a received signal that has been received from the sensor lags with respect to a falling of the received signal, or the falling of the received signal lags with respect to the rising of the received signal.
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公开(公告)号：US20130243211A1
公开(公告)日：2013-09-19
申请号：US13791015
申请日：2013-03-08
Applicant: YAMAHA CORPORATION
Inventor： Kazunobu KONDO , Yu TAKAHASHI , Yasuyuki UMEYAMA
IPC: H04R3/04
CPC classification number: H04R3/04 , H04S7/302 , H04S7/305 , H04S7/40 , H04S2420/07
Abstract: In a sound processing apparatus, a likelihood calculation unit calculates an in-region coefficient and an out-of-region coefficient indicating likelihood of generation of each frequency component of a sound signal inside and outside a target localization range, respectively, according to localization of each frequency component. A reverberation analysis unit calculates a reverberation index value according to the ratio of a reverberation component for each frequency component. A coefficient setting unit generates a process coefficient for suppressing or emphasizing a reverberation component generated inside or outside the target localization range, for each frequency component of the sound signal, on the basis of the in-region coefficient, the out-of-region coefficient and the reverberation index value. A signal processing unit applies the process coefficient of each frequency component to each frequency component of the sound signal.
Abstract translation: 在声音处理装置中，似然度计算部根据目标定位范围内外的声音信号的各频率分量的各自的频率分量的区域系数和区域外系数，分别根据 每个频率分量。 混响分析单元根据每个频率分量的混响分量的比率来计算混响指数值。 系数设定单元根据区域内系数，区域外系数，区域内系数，区域内系数，区域内系数，区域系数，区域系数等，生成用于抑制或强调针对声音信号的各频率成分的目标定位范围内或外的混响成分的处理系数 和混响指数值。 信号处理单元将每个频率分量的处理系数应用于声音信号的每个频率分量。
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公开(公告)号：US20240420721A1
公开(公告)日：2024-12-19
申请号：US18821808
申请日：2024-08-30
Applicant: Yamaha Corporation
Inventor： Yu TAKAHASHI , Kenji ISHIZUKA
IPC: G10L21/0272
Abstract: An audio processing method that is realized by a computer system includes acquiring a first audio signal including percussive components and non-percussive components, and serially executing a plurality of stages of adaptive notch filter processing on the first audio signal, thereby generating a second audio signal in which the non-percussive components in the first audio signal are suppressed.
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Patent Agency Ranking
公开(公告)号：US20230016242A1
公开(公告)日：2023-01-19
申请号：US17949717
申请日：2022-09-21
Applicant: Yamaha Corporation
Inventor： Yu TAKAHASHI , Tetsuro OTAKE
IPC: G10L25/30 , G10L25/18 , G10L21/0308
Abstract: A processing apparatus includes one or more processors and one or more memories operatively coupled to the one or more processors. The one or more processors are configured to acquire a spectrogram of a sound signal. The one or more processors are also configured to perform a first convolution on the spectrogram at every predetermined width on one of a frequency axis or a time axis. The one or more processors are also configured to combine results of the first convolution to obtain one-dimensional first feature data. The one or more processors are also configured to perform at least one second convolution on the one-dimensional first feature data to obtain one-dimensional second feature data indicating a feature of the spectrogram.
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7.发明申请公开(公告)号：US20160104469A1
公开(公告)日：2016-04-14
申请号：US14892764
申请日：2014-05-23
Applicant: YAMAHA CORPORATION
Inventor： Yu TAKAHASHI , Yoshitaka URATANI , Fukutaro OKUYAMA , Taro KAWABATA , Koichi ISHIZAKI , Dan SASAI , Yoshinari NAKAMURA , Daichi WATANABE , Risa KOMURO
CPC classification number: G10G1/00 , G09B15/00 , G10H1/0008 , G10H1/0041 , G10H1/0066 , G10H2210/066 , G10H2210/091 , G10H2220/096 , G10H2230/011 , G10H2240/056
Abstract: A musical-performance analysis device includes: an acquisition section that acquires performance information of a player; a determination section that determines, by comparing the performance information acquired by the acquisition section with reference information indicating a reference of a performance, among performance segments different from one another, a performance segment in which a difference degree between the performance information acquired by the acquisition section and the reference information is large and a performance segment in which the difference degree between the performance information acquired by the acquisition section and the reference information is small; and the specification section that specifies a tendency of the performance on the basis of the difference degree of the performance segment in which the difference degree has been determined to be small by the determination section.
Abstract translation: 音乐性能分析装置包括：获取玩家的演奏信息的获取部; 确定部，其通过将由所述获取部获取的所述演奏信息与表示演奏的参考的参考信息进行比较，确定在彼此不同的演奏段中，通过所述获取获取的演奏信息之间的差异程度， 参考信息很大，并且其中获取部分获取的演奏信息与参考信息之间的差异程度小的演奏片段; 以及规定部，根据判定部判断出差分程度小的执行段的差异程度来指定性能的趋势。
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8.发明申请公开(公告)号：US20240430640A1
公开(公告)日：2024-12-26
申请号：US18826162
申请日：2024-09-05
Applicant: Yamaha Corporation
Inventor： Yu TAKAHASHI
Abstract: A sound signal processing method includes accepting sound signals of a plurality of channels, adjusting a level of each of the sound signals of the plurality of channels, mixing the sound signals of the plurality of channels after the adjusting, outputting the mixed sound signal, acquiring a first acoustic feature of the mixed sound signal, acquiring a second acoustic feature that is a target acoustic feature, and determining a gain of each of the plurality of channels for the adjusting of the level, based on the first acoustic feature and the second acoustic feature.
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公开(公告)号：US20230306944A1
公开(公告)日：2023-09-28
申请号：US18187235
申请日：2023-03-21
Applicant: YAMAHA CORPORATION
Inventor： Yu TAKAHASHI , Hayato YAMAKAWA , Yoshifumi MIZUNO , Takuya SHIBATA , Tatsuki TASHIRO , Ryohei TAKEUCHI , Yuki SAKAMOTO , Jinichi KONNO , Yusuke OTA
CPC classification number: G10H3/187 , G10H1/16 , G10H2210/311
Abstract: A method of outputting a parameter of a sound processing device receives an audio signal, obtains information of the parameter of the sound processing device, which corresponds to the received audio signal, by using a trained model obtained by performing training of a relationship among a training output sound of the sound processing device, a training input sound of the sound processing device, and a parameter of sound processing performed by the sound processing device, the parameter of the sound processing device being receivable by a user of the sound processing device, and outputs obtained information of the parameter of the sound processing device corresponding to the received audio signal.
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公开(公告)号：US20220215822A1
公开(公告)日：2022-07-07
申请号：US17703697
申请日：2022-03-24
Applicant: YAMAHA CORPORATION
Inventor： Yoshifumi MIZUNO , Yu TAKAHASHI , Kazunobu KONDO , Kenji ISHIZUKA
Abstract: An audio processing method obtains observed envelopes of picked-up sound signals including a first observed envelope representing a contour of a first sound signal including a first target sound from a first sound source and a second spill sound from a second sound source and a second observed envelope representing a contour of a second sound signal including a second target sound from the second sound source and a first spill sound from the first sound source; and generates, based on the observed envelopes, output envelopes including a first output envelope representing a contour of the first target sound in the first observed envelope and a second output envelope representing a contour of the second target sound in the second observed envelope, using a mix matrix including a mix proportion of the second spill sound in the first sound signal and a mix proportion of the first spill sound in the second sound signal.
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