JP4705480B2 - 高調波信号の基本周波数を求める方法 - Google Patents
高調波信号の基本周波数を求める方法 Download PDFInfo
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- JP4705480B2 JP4705480B2 JP2006015950A JP2006015950A JP4705480B2 JP 4705480 B2 JP4705480 B2 JP 4705480B2 JP 2006015950 A JP2006015950 A JP 2006015950A JP 2006015950 A JP2006015950 A JP 2006015950A JP 4705480 B2 JP4705480 B2 JP 4705480B2
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- 238000000034 method Methods 0.000 claims abstract description 19
- 238000004590 computer program Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 238000004364 calculation method Methods 0.000 description 8
- 238000005070 sampling Methods 0.000 description 3
- 238000005311 autocorrelation function Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 210000003926 auditory cortex Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/90—Pitch determination of speech signals
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- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
A. Bregman, "Auditory Scene Analysis", MIT Press, 1990 G. Langner, H. Schulze, M. Sams, and P. Heil, "The topographic representation of periodicity pitch in the auditory cortex", Proc. of the NATO Adv. Study Inst. On Comp. Hearing, 1998, 91-97 G. Hu and D. Wang, "Monaural speech segregation based on pitch tracking and amplitude", IEEE Trans. On Neural Networks, 2004
3 フィルタ・バンク
3.1、3.2 帯域通過フィルタ
1 周波数分解のステップ
4 ゼロ交差間の距離を計算するステップ
7 ヒストグラムを計算するステップ
Claims (6)
- 複数の音源からの音を表す高調波信号の基本周波数を求めるためコンピュータで実行される方法であって、
複数の音源から音を表す高調波信号を受け取るステップと、
前記高調波信号をフィルタにより高調波関係に近い複数の周波数チャネルに分割するステップと、
前記複数の周波数チャネルのそれぞれについて、高調波のゼロ交差の距離値を求めるステップと、
複数の距離値について、前記複数の周波数チャネル全体でのゼロ交差の発生頻度のヒストグラムを計算するステップと、を備え、
前記ヒストグラムの最大ピークを求め、該最大ピークに対応する距離値の逆数を用いて前記高調波信号の基本周波数を求める、前記方法。 - 帯域の中心周波数が高調波関係にあるかまたは高調波関係に近い帯域通過信号だけが、前記ヒストグラムを計算するために使用される、請求項1に記載の方法。
- 前記ヒストグラムのピークを鋭くするために、前記ヒストグラムの入力が、基礎を成す帯域通過信号のエネルギーで重み付けされる、請求項1または請求項2に記載の方法。
- 前記ヒストグラムの構築において、仮定基本周波数に対応する第1次のゼロ交差、第1高調波に対応する第2次のゼロ交差など、ゼロ交差の次数ごとに独立した重みが使用される、請求項1乃至請求項3のいずれかに記載の方法。
- 分解されなかった高調波に起因する距離値を、請求項1乃至請求項4のいずれかに従って評価された時間−距離ヒストグラムにまとめる方法。
- コンピュータで実行されるとき、請求項1乃至請求項5のいずれかに記載の方法を実施する、コンピュータプログラム。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05001817.5 | 2005-01-28 | ||
EP05001817 | 2005-01-28 | ||
EP05004066.6 | 2005-02-24 | ||
EP05004066A EP1686561B1 (en) | 2005-01-28 | 2005-02-24 | Determination of a common fundamental frequency of harmonic signals |
Publications (2)
Publication Number | Publication Date |
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JP2006209123A JP2006209123A (ja) | 2006-08-10 |
JP4705480B2 true JP4705480B2 (ja) | 2011-06-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006015950A Expired - Fee Related JP4705480B2 (ja) | 2005-01-28 | 2006-01-25 | 高調波信号の基本周波数を求める方法 |
Country Status (3)
Country | Link |
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US (1) | US8108164B2 (ja) |
EP (1) | EP1686561B1 (ja) |
JP (1) | JP4705480B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5291004B2 (ja) * | 2007-03-02 | 2013-09-18 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 通信ネットワークにおける方法及び装置 |
DE602007004943D1 (de) * | 2007-03-23 | 2010-04-08 | Honda Res Inst Europe Gmbh | Tonhöhenextraktion mit Hemmung der Harmonischen und Subharmonischen der Grundfrequenz |
JP4882899B2 (ja) * | 2007-07-25 | 2012-02-22 | ソニー株式会社 | 音声解析装置、および音声解析方法、並びにコンピュータ・プログラム |
US8321209B2 (en) | 2009-11-10 | 2012-11-27 | Research In Motion Limited | System and method for low overhead frequency domain voice authentication |
JP5594357B2 (ja) | 2010-03-10 | 2014-09-24 | 富士通株式会社 | ハムノイズ検出装置 |
CN111896807B (zh) * | 2020-08-05 | 2023-03-14 | 威胜集团有限公司 | 基波频率测量方法、测量终端及存储介质 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10197575A (ja) * | 1997-01-14 | 1998-07-31 | Atr Ningen Joho Tsushin Kenkyusho:Kk | 信号分析方法 |
JPH11175097A (ja) * | 1997-12-16 | 1999-07-02 | Victor Co Of Japan Ltd | ピッチ検出方法及び装置、判定方法及び装置、データ伝送方法、並びに記録媒体 |
JPH11305794A (ja) * | 1998-04-24 | 1999-11-05 | Victor Co Of Japan Ltd | ピッチ検出装置及び情報媒体 |
WO2004084187A1 (ja) * | 2003-03-17 | 2004-09-30 | Nagoya Industrial Science Research Institute | 対象音検出方法、信号入力遅延時間検出方法及び音信号処理装置 |
JP2005055612A (ja) * | 2003-08-01 | 2005-03-03 | Korg Inc | ピッチ検出方法 |
Family Cites Families (14)
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US3622706A (en) * | 1969-04-29 | 1971-11-23 | Meguer Kalfaian | Phonetic sound recognition apparatus for all voices |
US3629510A (en) * | 1969-11-26 | 1971-12-21 | Bell Telephone Labor Inc | Error reduction logic network for harmonic measurement system |
NL7410763A (nl) * | 1974-08-12 | 1976-02-16 | Philips Nv | Digitaal transmissiestelsel voor het met een lage pulsfrequentie(bit-rate)overdragen van gespreks- signalen en een zender voor toepassing in zulk een stelsel. |
US4091237A (en) * | 1975-10-06 | 1978-05-23 | Lockheed Missiles & Space Company, Inc. | Bi-Phase harmonic histogram pitch extractor |
US4640134A (en) | 1984-04-04 | 1987-02-03 | Bio-Dynamics Research & Development Corporation | Apparatus and method for analyzing acoustical signals |
US4783805A (en) * | 1984-12-05 | 1988-11-08 | Victor Company Of Japan, Ltd. | System for converting a voice signal to a pitch signal |
US4905285A (en) * | 1987-04-03 | 1990-02-27 | American Telephone And Telegraph Company, At&T Bell Laboratories | Analysis arrangement based on a model of human neural responses |
DE69124005T2 (de) * | 1990-05-28 | 1997-07-31 | Matsushita Electric Ind Co Ltd | Sprachsignalverarbeitungsvorrichtung |
US5136267A (en) * | 1990-12-26 | 1992-08-04 | Audio Precision, Inc. | Tunable bandpass filter system and filtering method |
US5214708A (en) * | 1991-12-16 | 1993-05-25 | Mceachern Robert H | Speech information extractor |
US6130949A (en) | 1996-09-18 | 2000-10-10 | Nippon Telegraph And Telephone Corporation | Method and apparatus for separation of source, program recorded medium therefor, method and apparatus for detection of sound source zone, and program recorded medium therefor |
US7076433B2 (en) * | 2001-01-24 | 2006-07-11 | Honda Giken Kogyo Kabushiki Kaisha | Apparatus and program for separating a desired sound from a mixed input sound |
AU2002316522A1 (en) * | 2001-07-06 | 2003-01-21 | Corporate Computer Systems, Inc. | Hot swappable, user configurable audio codec |
US20070083365A1 (en) | 2005-10-06 | 2007-04-12 | Dts, Inc. | Neural network classifier for separating audio sources from a monophonic audio signal |
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2005
- 2005-02-24 EP EP05004066A patent/EP1686561B1/en not_active Expired - Fee Related
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2006
- 2006-01-25 JP JP2006015950A patent/JP4705480B2/ja not_active Expired - Fee Related
- 2006-01-26 US US11/340,918 patent/US8108164B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10197575A (ja) * | 1997-01-14 | 1998-07-31 | Atr Ningen Joho Tsushin Kenkyusho:Kk | 信号分析方法 |
JPH11175097A (ja) * | 1997-12-16 | 1999-07-02 | Victor Co Of Japan Ltd | ピッチ検出方法及び装置、判定方法及び装置、データ伝送方法、並びに記録媒体 |
JPH11305794A (ja) * | 1998-04-24 | 1999-11-05 | Victor Co Of Japan Ltd | ピッチ検出装置及び情報媒体 |
WO2004084187A1 (ja) * | 2003-03-17 | 2004-09-30 | Nagoya Industrial Science Research Institute | 対象音検出方法、信号入力遅延時間検出方法及び音信号処理装置 |
JP2005055612A (ja) * | 2003-08-01 | 2005-03-03 | Korg Inc | ピッチ検出方法 |
Also Published As
Publication number | Publication date |
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EP1686561A1 (en) | 2006-08-02 |
EP1686561B1 (en) | 2012-01-04 |
US20060195500A1 (en) | 2006-08-31 |
US8108164B2 (en) | 2012-01-31 |
JP2006209123A (ja) | 2006-08-10 |
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