JP2007086109A - 楽器用スピーカ装置 - Google Patents
楽器用スピーカ装置 Download PDFInfo
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- JP2007086109A JP2007086109A JP2005271432A JP2005271432A JP2007086109A JP 2007086109 A JP2007086109 A JP 2007086109A JP 2005271432 A JP2005271432 A JP 2005271432A JP 2005271432 A JP2005271432 A JP 2005271432A JP 2007086109 A JP2007086109 A JP 2007086109A
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- musical instrument
- preamplifier
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Classifications
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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
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
- G10H3/186—Means for processing the signal picked up from the strings
-
- 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
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/24—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument incorporating feedback means, e.g. acoustic
- G10H3/26—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument incorporating feedback means, e.g. acoustic using electric feedback
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Circuit For Audible Band Transducer (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
【解決手段】センサ45の出力は、ヘッドアンプ24により所定のレベルに増幅されてフィルタ25に入力される。このフィルタ25は、2次微分フィルタであって、センサ45が検出したボイスコイル41の変位から加速度を取得するものである。これはコーンスピーカの音圧特性は、コーンの加速度に比例するからである。フィルタ25の出力は、MFBレベル調整ボリューム28を演奏者が操作することにより任意のレベルに調整され、電圧制御増幅器26の入力端子に入力される。電圧制御増幅器26は、制御端子に供給される電圧値により、入力端子に入力された信号を増幅する増幅率が制御される増幅器である。
【選択図】 図4
Description
10 プリアンプ部
12 イコライザ
20 フィードバック部
26 電圧制御増幅器(帰還量設定手段)
28 MFBレベル調整ボリューム(帰還量設定手段)
29 ダイナミクスセンス調整ボリューム(センス調整手段)
30 パワーアンプ部(増幅器)
40 スピーカ部
44 反射板
45 光センサ(光源と受光素子)
Claims (7)
- 電気信号を入力する入力端子と、その入力端子に入力された電気信号の周波数特性を変更するプリアンプと、増幅器により駆動されるスピーカと、そのスピーカの変位を検出し、その検出された信号を前記増幅器に帰還する帰還手段と、前記プリアンプの出力と前記帰還手段により帰還された帰還信号とに応じて電気信号を増幅する増幅器とを備えた楽器用スピーカ装置において、
前記帰還手段により帰還される帰還信号の量を任意に設定する帰還量設定手段を備え、前記増幅器はプリアンプの出力と前記帰還量設定手段により設定された帰還量の帰還信号とに応じて電気信号を増幅するものであることを特徴とする楽器用スピーカ装置。 - 前記プリアンプの出力レベルを検出するレベル検出手段を備え、
前記帰還量設定手段は、前記レベル検出手段により検出されたレベルに応じて帰還量を設定するものであることを特徴とする請求項1記載の楽器用スピーカ装置。 - 前記プリアンプの出力の低周波数成分を通過させるローパスフィルタを備え、
前記レベル検出手段は、前記ローパスフィルタの出力レベルを検出するものであることを特徴とする請求項2記載の楽器用スピーカ装置。 - 前記レベル検出手段が検出した前記プリアンプの出力レベルの値を任意に調整するセンス調整手段を備え、
前記帰還量設定手段は、前記レベル検出手段により検出されたレベルの値が前記センス調整手段により調整された値に応じて帰還量を設定するものであることを特徴とする請求項2または3記載の楽器用スピーカ装置。 - 前記スピーカが出力する音声の音量を任意に設定するボリューム操作子を備え、
前記帰還量設定手段は、前記ボリューム操作子により設定された操作量に応じて帰還量を設定するものであることを特徴とする請求項1から4のいずれかに記載の楽器用スピーカ装置。 - 前記プリアンプは、複数の周波数帯域のレベルをそれぞれ任意に設定するイコライザ操作子を備え、
前記帰還量設定手段は、前記イコライザ操作子により設定された操作量に応じて帰還量を設定するものであることを特徴とする請求項1から5のいずれかに記載の楽器用スピーカ装置。 - 前記スピーカは、円筒形の中心部に反射板を有するボイスコイルと、その反射板に向かって光を照射する光源と、その反射板により反射された光を受光する受光素子とを備えていることを特徴とする請求項1から6のいずれかに記載の楽器用スピーカ装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005271432A JP4519041B2 (ja) | 2005-09-20 | 2005-09-20 | 楽器用スピーカ装置 |
US11/523,303 US7912233B2 (en) | 2005-09-20 | 2006-09-19 | Speaker system for musical instruments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005271432A JP4519041B2 (ja) | 2005-09-20 | 2005-09-20 | 楽器用スピーカ装置 |
Publications (2)
Publication Number | Publication Date |
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JP2007086109A true JP2007086109A (ja) | 2007-04-05 |
JP4519041B2 JP4519041B2 (ja) | 2010-08-04 |
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JP2005271432A Expired - Fee Related JP4519041B2 (ja) | 2005-09-20 | 2005-09-20 | 楽器用スピーカ装置 |
Country Status (2)
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US (1) | US7912233B2 (ja) |
JP (1) | JP4519041B2 (ja) |
Cited By (2)
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JP2010288119A (ja) * | 2009-06-12 | 2010-12-24 | Sony Corp | 信号処理装置、信号処理方法 |
JP2011019209A (ja) * | 2009-06-12 | 2011-01-27 | Sony Corp | 信号処理装置、信号処理方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010288119A (ja) * | 2009-06-12 | 2010-12-24 | Sony Corp | 信号処理装置、信号処理方法 |
JP2011019209A (ja) * | 2009-06-12 | 2011-01-27 | Sony Corp | 信号処理装置、信号処理方法 |
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Publication number | Publication date |
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JP4519041B2 (ja) | 2010-08-04 |
US7912233B2 (en) | 2011-03-22 |
US20070076906A1 (en) | 2007-04-05 |
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