公开(公告)号：US20230351989A1

公开(公告)日：2023-11-02

申请号：US18349417

申请日：2023-07-10

Applicant: YAMAHA CORPORATION

Inventor： Masafumi SOBAJIMA ,  Dan SASAI

IPC: G10H1/00 ,  G10H1/36

CPC classification number: G10H1/0008 ,  G10H1/36 ,  G10H2250/005

Abstract: An information processing system includes at least one memory configured to store instructions and at least one processor configured to implement the instructions to acquire first audio data indicative of audio of a target piece of music, and cause a trained model to output first timbre data indicative of a timbre appropriate for the target piece of music by inputting input data into the trained model, the input data including the first audio data, in which the trained model is trained to learn a relationship between second audio data indicative of audio and second timbre data indicative of a timbre for each reference piece of a plurality of reference pieces of music.

公开(公告)号：US20230298548A1

公开(公告)日：2023-09-21

申请号：US18322967

申请日：2023-05-24

Applicant: Yamaha Corporation

Inventor： Dan SASAI

IPC: G10H1/00

CPC classification number: G10H1/0025

Abstract: A musical element generation support device includes at least one processor configured to receive a musical element sequence including a plurality of musical elements and a blank portion that are arranged in a time series, and generate, by using a learning model, at least one suitable musical element for the blank portion based on a part of the musical elements that is positioned after the blank portion on a time axis in the musical element sequence. The learning model is configured to generate, from one-part musical element, another-part musical element.

公开(公告)号：US20220215051A1

公开(公告)日：2022-07-07

申请号：US17705100

申请日：2022-03-25

Applicant: Yamaha Corporation

Inventor： Dan SASAI

IPC: G06F16/683 ,  G06F16/68 ,  G06F16/65 ,  G10H1/00

Abstract: An audio analysis device comprises an electronic controller including at least one processor. The electronic controller is configured to execute a plurality of modules including a signal acquisition module configured to acquire an audio signal representing performance sounds of a musical piece, a signal analysis module configured to calculate, for each of a plurality of music categories, a feature value that includes a degree of certainty that the musical piece belongs to the music category, by analyzing the audio signal, and a music selection module configured to select one or more candidate musical pieces whose feature value is similar to the feature value calculated for the musical piece from among a plurality of candidate musical pieces.

公开(公告)号：US20150179156A1

公开(公告)日：2015-06-25

申请号：US14573237

申请日：2014-12-17

Applicant: YAMAHA CORPORATION

Inventor： Norihiro UEMURA ,  Dan SASAI ,  Motoichi TAMURA

IPC: G10H1/00

CPC classification number: G10H1/0008 ,  G06K9/00476

Abstract: The method analyzes, on the basis of the musical score image data, an image note sequence that is a time series of a plurality of notes included in the image of a musical score of a given music piece, acquires, on the basis of a logical musical score data, a logical note sequence that is a time series of a plurality of notes included in the musical score of the given music piece, and then identifies correspondence relationship between the individual notes in the image note sequence and the individual notes in the logical note sequence by comparing the image note sequence and the logical note sequence. Further, the method displays the musical score image of the given music piece on the basis of the musical score image data, and controls a display state of the displayed image of the musical score by use of the identified correspondence relationship.

Abstract translation: 该方法基于音乐分数图像数据分析作为给定乐曲的乐谱图像中包含的多个音符的时间序列的图像音符序列，基于逻辑 乐谱数据，作为包含在给定乐曲的乐谱中的多个音符的时间序列的逻辑音符序列，然后识别图像音符序列中的各个音符与逻辑中的各个音符之间的对应关系 通过比较图像笔记序列和逻辑音符序列来记录序列。 此外，该方法基于乐谱图像数据显示给定乐曲的乐谱图像，并且通过使用所识别的对应关系来控制乐谱的显示图像的显示状态。

公开(公告)号：US20140033902A1

公开(公告)日：2014-02-06

申请号：US13956165

申请日：2013-07-31

Applicant: Yamaha Corporation

Inventor： Dan SASAI ,  Takuya FUJISHIMA

IPC: G10H1/40

CPC classification number: G10H1/40 ,  G06F17/30 ,  G10H1/36 ,  G10H1/42 ,  G10H2210/061 ,  G10H2210/071 ,  G10H2210/341 ,  G10H2240/141

Abstract: When a music audio to be analyzed is to be divided into a plurality of possible pattern segments based on estimated beat positions, it is divided in a plurality of different ways according to individual division models obtained by sequentially shifting the leading or first beat position of the possible pattern segments. Such division can provide plural sets of possible pattern segments with each of the sets corresponding to one of the division models. For each of the sets, comparison is made between individual possible pattern segments and individual reference performance patterns. For each of the possible pattern segments of the set, at least one reference performance pattern that matches the possible pattern segment is determined. Then, at least one combination of reference performance patterns is identified for each of the sets of possible pattern segments. One optimal combination is selected from among the identified combinations.

Abstract translation: 当要分析的音乐音乐将基于估计的拍子位置被划分为多个可能的图案片段时，根据通过顺序地移动第一拍摄位置的前导或第一拍摄位置而获得的各个分割模型将其分成多个不同的方式 可能的模式段。 这种分割可以提供多组可能的模式段，其中每个集合对应于一个分割模型。 对于每个集合，在各个可能的模式段和各个参考性能模式之间进行比较。 对于集合的每个可能的模式段，确定与可能的模式段匹配的至少一个参考性能模式。 然后，针对可能的图案片段组中的每一组识别参考性能图案的至少一个组合。 从所识别的组合中选择一种最佳组合。

公开(公告)号：US20230368760A1

公开(公告)日：2023-11-16

申请号：US18360937

申请日：2023-07-28

Applicant: YAMAHA CORPORATION

Inventor： Masafumi SOBAJIMA ,  Dan SASAI

IPC: G10H1/40

CPC classification number: G10H1/40 ,  G10H2250/311 ,  G10H2210/056

Abstract: An audio analysis system includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: receive an instruction indicative of a target timbre; acquire a first audio signal containing a plurality of audio components corresponding to different timbres; and select at least one reference signal from among a plurality of reference signals respectively representative of different pieces of audio based on the target timbre and the first audio signal, in which: the at least one reference signal has an intensity with a temporal change, the temporal change in the intensity of the at least one reference signal is represented by a reference rhythm pattern, the plurality of audio components include audio components corresponding to the target timbre, the audio components corresponding to the target timbre have an intensity with a temporal change, the temporal change in the intensity of the audio components corresponding to the target timbre is represented by an analysis rhythm pattern, and the reference rhythm pattern is similar to the analysis rhythm pattern.

公开(公告)号：US20200293572A1

公开(公告)日：2020-09-17

申请号：US16086055

申请日：2017-03-10

Applicant: YAMAHA CORPORATION

Inventor： Dan SASAI

IPC: G06F16/638 ,  G06F16/65 ,  G06F16/635

Abstract: An update method includes acquiring a list of plural pieces of content selected from a library including plural pieces of content, selecting, from the list, first content to be deleted from the list, selecting, from the library, second content to be interchanged with the first content based on details of the list, and interchanging the first content with the second content in the list.

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

IPC: G10G1/00 ,  G09B15/00 ,  G10H1/00

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。