JP2019144485A - コード特定方法およびプログラム - Google Patents
コード特定方法およびプログラム Download PDFInfo
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- JP2019144485A JP2019144485A JP2018030460A JP2018030460A JP2019144485A JP 2019144485 A JP2019144485 A JP 2019144485A JP 2018030460 A JP2018030460 A JP 2018030460A JP 2018030460 A JP2018030460 A JP 2018030460A JP 2019144485 A JP2019144485 A JP 2019144485A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/38—Chord
- G10H1/383—Chord detection and/or recognition, e.g. for correction, or automatic bass generation
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
- G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
- G10H2210/036—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal of musical genre, i.e. analysing the style of musical pieces, usually for selection, filtering or classification
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
- G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
- G10H2210/056—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for extraction or identification of individual instrumental parts, e.g. melody, chords, bass; Identification or separation of instrumental parts by their characteristic voices or timbres
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
- G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
- G10H2210/066—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for pitch analysis as part of wider processing for musical purposes, e.g. transcription, musical performance evaluation; Pitch recognition, e.g. in polyphonic sounds; Estimation or use of missing fundamental
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/005—Algorithms for electrophonic musical instruments or musical processing, e.g. for automatic composition or resource allocation
- G10H2250/015—Markov chains, e.g. hidden Markov models [HMM], for musical processing, e.g. musical analysis or musical composition
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
- G10H2250/135—Autocorrelation
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/311—Neural networks for electrophonic musical instruments or musical processing, e.g. for musical recognition or control, automatic composition or improvisation
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
- Electrically Operated Instructional Devices (AREA)
- Auxiliary Devices For Music (AREA)
Abstract
Description
以上に例示した態様に付加される具体的な変形の態様を以下に例示する。以下の例示から任意に選択された2個以上の態様を、相互に矛盾しない範囲で適宜に併合してもよい。
Claims (6)
- 楽曲に関する相異なる複数の属性にそれぞれ対応し、音響信号の特徴量からコードを特定するための複数のコード特定部のうち、処理対象の音響信号が表す楽曲の属性に対応したコード特定部により、前記処理対象の音響信号に応じたコードを特定する
コンピュータにより実現されるコード特定方法。 - 前記複数のコード特定部の各々は、音響信号の特徴量とコードとの間の関係を学習した学習済モデルである
請求項1のコード特定方法。 - 前記複数のコード特定部の各々は、当該コード特定部に対応する属性に応じた複数の教師データを利用した機械学習により生成される
請求項2のコード特定方法。 - 前記処理対象の音響信号が表す楽曲の属性を特定し、
前記複数のコード特定部のうち、前記特定した属性に対応したコード特定部により前記コードを特定する
請求項1から請求項3の何れかのコード特定方法。 - 前記処理対象の音響信号を端末装置から受信し、
前記受信した音響信号の特徴量から特定したコードを前記端末装置に送信する
請求項1から請求項4の何れかのコード特定方法。 - 楽曲に関する相異なる複数の属性にそれぞれ対応し、音響信号の特徴量からコードを特定するための複数のコード特定部のうち、処理対象の音響信号が表す楽曲の属性に対応したコード特定部により、前記処理対象の音響信号に応じたコードを特定する処理
をコンピュータに実行させるプログラム。
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JP2018030460A JP7069819B2 (ja) | 2018-02-23 | 2018-02-23 | コード特定方法、コード特定装置およびプログラム |
US16/282,453 US11322124B2 (en) | 2018-02-23 | 2019-02-22 | Chord identification method and chord identification apparatus |
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JP2018030460A JP7069819B2 (ja) | 2018-02-23 | 2018-02-23 | コード特定方法、コード特定装置およびプログラム |
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JP2019144485A true JP2019144485A (ja) | 2019-08-29 |
JP7069819B2 JP7069819B2 (ja) | 2022-05-18 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10586519B2 (en) * | 2018-02-09 | 2020-03-10 | Yamaha Corporation | Chord estimation method and chord estimation apparatus |
JP7069819B2 (ja) * | 2018-02-23 | 2022-05-18 | ヤマハ株式会社 | コード特定方法、コード特定装置およびプログラム |
US11037537B2 (en) * | 2018-08-27 | 2021-06-15 | Xiaoye Huo | Method and apparatus for music generation |
JP7375302B2 (ja) * | 2019-01-11 | 2023-11-08 | ヤマハ株式会社 | 音響解析方法、音響解析装置およびプログラム |
Citations (6)
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JPH0527767A (ja) * | 1991-07-24 | 1993-02-05 | Yamaha Corp | 和音検出装置および自動伴奏装置 |
JP2000298475A (ja) * | 1999-03-30 | 2000-10-24 | Yamaha Corp | 和音判定装置、方法及び記録媒体 |
JP2004302318A (ja) * | 2003-03-31 | 2004-10-28 | Doshisha | 音楽データ生成システム、音楽データ生成装置、および音楽データ生成方法 |
JP2009282464A (ja) * | 2008-05-26 | 2009-12-03 | Kawai Musical Instr Mfg Co Ltd | コード検出装置およびコード検出プログラム |
JP2010122630A (ja) * | 2008-11-21 | 2010-06-03 | Sony Corp | 情報処理装置、音声解析方法、及びプログラム |
JP2013076908A (ja) * | 2011-09-30 | 2013-04-25 | Casio Comput Co Ltd | 調判定装置、調判定方法及び調判定プログラム |
Family Cites Families (12)
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JP2797112B2 (ja) * | 1988-04-25 | 1998-09-17 | カシオ計算機株式会社 | 電子弦楽器のコード判別装置 |
US5563361A (en) * | 1993-05-31 | 1996-10-08 | Yamaha Corporation | Automatic accompaniment apparatus |
US6448486B1 (en) * | 1995-08-28 | 2002-09-10 | Jeff K. Shinsky | Electronic musical instrument with a reduced number of input controllers and method of operation |
US5859381A (en) * | 1996-03-12 | 1999-01-12 | Yamaha Corporation | Automatic accompaniment device and method permitting variations of automatic performance on the basis of accompaniment pattern data |
US9293127B2 (en) * | 2009-06-01 | 2016-03-22 | Zya, Inc. | System and method for assisting a user to create musical compositions |
US8847054B2 (en) * | 2013-01-31 | 2014-09-30 | Dhroova Aiylam | Generating a synthesized melody |
US9734810B2 (en) * | 2015-09-23 | 2017-08-15 | The Melodic Progression Institute LLC | Automatic harmony generation system |
US9824719B2 (en) * | 2015-09-30 | 2017-11-21 | Apple Inc. | Automatic music recording and authoring tool |
US10147407B2 (en) * | 2016-08-31 | 2018-12-04 | Gracenote, Inc. | Characterizing audio using transchromagrams |
US10586519B2 (en) * | 2018-02-09 | 2020-03-10 | Yamaha Corporation | Chord estimation method and chord estimation apparatus |
JP7069819B2 (ja) * | 2018-02-23 | 2022-05-18 | ヤマハ株式会社 | コード特定方法、コード特定装置およびプログラム |
CN113010730B (zh) * | 2021-03-22 | 2023-07-21 | 平安科技(深圳)有限公司 | 音乐文件生成方法、装置、设备及存储介质 |
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- 2018-02-23 JP JP2018030460A patent/JP7069819B2/ja active Active
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2019
- 2019-02-22 US US16/282,453 patent/US11322124B2/en active Active
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JPH0527767A (ja) * | 1991-07-24 | 1993-02-05 | Yamaha Corp | 和音検出装置および自動伴奏装置 |
JP2000298475A (ja) * | 1999-03-30 | 2000-10-24 | Yamaha Corp | 和音判定装置、方法及び記録媒体 |
JP2004302318A (ja) * | 2003-03-31 | 2004-10-28 | Doshisha | 音楽データ生成システム、音楽データ生成装置、および音楽データ生成方法 |
JP2009282464A (ja) * | 2008-05-26 | 2009-12-03 | Kawai Musical Instr Mfg Co Ltd | コード検出装置およびコード検出プログラム |
JP2010122630A (ja) * | 2008-11-21 | 2010-06-03 | Sony Corp | 情報処理装置、音声解析方法、及びプログラム |
JP2013076908A (ja) * | 2011-09-30 | 2013-04-25 | Casio Comput Co Ltd | 調判定装置、調判定方法及び調判定プログラム |
Non-Patent Citations (1)
Title |
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吉井和佳: "音楽と機械学習", 情報処理, vol. 27, no. 6, JPN6021050543, June 2016 (2016-06-01), pages 519 - 522, ISSN: 0004666302 * |
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Publication number | Publication date |
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US11322124B2 (en) | 2022-05-03 |
JP7069819B2 (ja) | 2022-05-18 |
US20190266988A1 (en) | 2019-08-29 |
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