JP2001175245A - Method and device for preventing propagation of vibration of percussion/string musical instrument - Google Patents
Method and device for preventing propagation of vibration of percussion/string musical instrumentInfo
- Publication number
- JP2001175245A JP2001175245A JP35604099A JP35604099A JP2001175245A JP 2001175245 A JP2001175245 A JP 2001175245A JP 35604099 A JP35604099 A JP 35604099A JP 35604099 A JP35604099 A JP 35604099A JP 2001175245 A JP2001175245 A JP 2001175245A
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- Japan
- Prior art keywords
- vibration
- waveform
- stringed
- instrument
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Vibration Prevention Devices (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Auxiliary Devices For Music (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ピアノ等の打弦楽
器の演奏時における床への振動伝播を防止する打弦楽器
振動伝播防止方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for preventing the propagation of vibrations of a stringed instrument, such as a piano, for preventing the propagation of vibrations to the floor when playing a stringed instrument.
【０００２】[0002]
【従来の技術】従来、ピアノ等の打弦楽器の演奏時にお
ける床への振動伝播を防止する打弦楽器振動伝播防止装
置として、例えば特開平８−３５５３７号公報に開示さ
れたものがある。図５は、この公報で開示された装置の
構成を示すブロック図である。この図において、ピアノ
本体２のキャスタ３と床４との間に介在されるインシュ
レータ１には、キャスター３とインシュレータ１との接
点Ｐの振動を検出するセンサ１１と、床点Ｓの振動を検
出するセンサ１２と、駆動力を発生する積層型圧電素子
からなるアクチュエータ１３と、センサ１１、１２によ
り検出された振動速度の差に比例する逆位相の駆動力を
アクチュエータ１３に発生させる演算制御部２０とが設
けられており、センサ１１，１２によってピアノ本体２
とインシュレータ１の本体の上下部分の相対変位を検出
して、逆位相の駆動力をアクチュエータ１３に発生させ
て床４への振動伝播を阻止する。2. Description of the Related Art An apparatus for preventing vibration propagation of a stringed musical instrument such as a piano or the like during the performance of a stringed musical instrument such as a piano is disclosed in, for example, Japanese Patent Application Laid-Open No. 8-35537. FIG. 5 is a block diagram showing the configuration of the device disclosed in this publication. In this figure, an insulator 1 interposed between a caster 3 and a floor 4 of a piano body 2 has a sensor 11 for detecting vibration of a contact point P between the caster 3 and the insulator 1 and a vibration for a floor point S. Sensor 12, an actuator 13 composed of a laminated piezoelectric element that generates a driving force, and an arithmetic and control unit 20 that causes the actuator 13 to generate a driving force having an opposite phase proportional to the difference between the vibration speeds detected by the sensors 11, 12. Is provided, and the piano body 2 is
And the relative displacement of the upper and lower portions of the main body of the insulator 1 is detected, and a driving force having the opposite phase is generated in the actuator 13 to prevent the vibration from propagating to the floor 4.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上述した従
来の打弦楽器振動伝播防止装置にあっては、ピアノのキ
ャスター３とインシュレータ１との接点Ｐの振動をセン
サ１１にて検出すると共に床点Ｓの振動をセンサ１２に
て検出し、これらの差に比例する逆位相の信号を演算に
より求め、求めた信号にてアクチュエータ１３を駆動し
てピアノの足部を加振して振動を打ち消すようにしてい
るが、振動を検出するための２つのセンサ１１，１２を
必要とすることと、検出した振動の信号の差に比例する
逆位相の信号を演算により求める演算制御部２０が必要
であり、装置が高価格になるという問題がある。また、
振動を検出してから逆位相の信号を演算により求めるこ
とから、制御に遅れが生じて精度の高い制御ができない
という問題もある。なお、この制御の遅れの問題は、演
算制御部２０のＣＰＵに高性能のものを用いることで解
決可能であるが、その分、価格が高くなってしまう。In the above-described conventional apparatus for preventing vibration propagation of a stringed instrument, the vibration of the contact point P between the caster 3 of the piano and the insulator 1 is detected by the sensor 11 and the floor point S is detected. Is detected by the sensor 12, a signal having an opposite phase proportional to the difference is obtained by calculation, and the actuator 13 is driven by the obtained signal to excite the foot of the piano to cancel the vibration. However, it requires two sensors 11 and 12 for detecting vibration, and a calculation control unit 20 for calculating a signal having an opposite phase proportional to the difference between the detected vibration signals by calculation. There is a problem that the device becomes expensive. Also,
Since the signal of the opposite phase is obtained by calculation after detecting the vibration, there is also a problem that a delay occurs in the control and high-precision control cannot be performed. The problem of the control delay can be solved by using a high-performance CPU as the CPU of the arithmetic and control unit 20, but the price increases accordingly.
【０００４】本発明は上述した事情に鑑みてなされたも
ので、制御の遅れを最小限に抑えながらも打弦楽器の床
への振動伝播防止を低コストで実現できる打弦楽器振動
伝播防止方法及び装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a method and apparatus for preventing the propagation of vibration of a stringed instrument to the floor at a low cost while minimizing a control delay. The purpose is to provide.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
の本発明に係る請求項１記載の打弦楽器振動伝播防止方
法は、打弦楽器の演奏時における床への振動伝播を防止
する打弦楽器振動伝播防止方法であって、予め前記打弦
楽器が発生する各音の振動波形の逆位相の波形情報を記
憶しておき、前記打弦楽器が打弦される毎に前記記憶し
ておいた逆位相波形情報を読み出して、その逆位相波形
情報に基づく振動を前記打弦楽器に加えることを特徴と
する。According to the first aspect of the present invention, there is provided a method of preventing vibration propagation of a stringed instrument according to the present invention, wherein the vibration of the stringed instrument is prevented from propagating to the floor during the performance of the stringed instrument. A method for preventing propagation, in which waveform information of the opposite phase of the vibration waveform of each sound generated by the stringed instrument is stored in advance, and the stored opposite phase waveform is stored each time the stringed instrument is struck. The information is read, and a vibration based on the opposite phase waveform information is applied to the stringed instrument.
【０００６】この方法によれば、予め打弦楽器の各発生
音の振動波形と逆位相波形の情報を記憶させておき、打
弦される毎に発生音と逆位相の波形の信号を発生させる
ので、振動を検出してから逆位相の信号を演算により求
める必要がなく、これにより制御の遅れを最小限に抑え
ることができる。この結果、上手く制御を行うことが可
能となる。また、逆位相の信号を求める必要がないこと
から、ＣＰＵに高性能をものを用いる必要がなく、価格
の低減を図ることができる。無論、振動を検出するセン
サを必要としないので、この点からも価格の低減を図る
ことができる。According to this method, the information of the vibration waveform and the reverse phase waveform of each generated sound of the stringed musical instrument is stored in advance, and a signal having the waveform of the opposite phase to the generated sound is generated each time the string is struck. Therefore, it is not necessary to calculate the signal of the opposite phase by calculation after detecting the vibration, whereby the control delay can be minimized. As a result, the control can be performed well. Further, since it is not necessary to obtain a signal having an opposite phase, it is not necessary to use a high-performance CPU, and the cost can be reduced. Of course, since a sensor for detecting vibration is not required, the cost can be reduced from this point as well.
【０００７】したがって、制御の遅れを最小限に抑えな
がらも打弦楽器の床への振動伝播防止を低コストで実現
できる打弦楽器振動伝播防止装置を提供することができ
る。Therefore, it is possible to provide an apparatus for preventing vibration propagation of a stringed musical instrument which can minimize the delay of control while preventing the vibration propagation of a stringed instrument to the floor at low cost.
【０００８】また、本発明に係る請求項２記載の打弦楽
器振動伝播防止方法は、上記請求項１記載の打弦楽器振
動伝播防止方法において、打弦楽器の種類毎の発生音の
振動波形の逆位相波形情報を記憶し、適用する打弦楽器
に応じて適宜選択することを特徴とする。According to a second aspect of the present invention, there is provided a method for preventing vibration propagation of a stringed instrument according to the first aspect, wherein the vibration waveform of the generated sound for each type of the stringed instrument has an opposite phase. It is characterized in that waveform information is stored and is appropriately selected according to a stringed instrument to be applied.
【０００９】この方法によれば、打弦楽器の種類に応じ
て発生音の振動波形の逆位相波形情報を記憶しておくの
で、適用する打弦楽器の種類に応じて最適な逆位相波形
情報を選択することができ、打弦楽器の種類に応じて効
果的な振動伝播防止を実現できる。According to this method, since the inverse phase waveform information of the vibration waveform of the generated sound is stored according to the type of the percussion instrument, the optimum inverse phase waveform information is selected according to the type of the percussion instrument to be applied. And effective prevention of vibration propagation can be realized according to the type of the stringed instrument.
【００１０】また、本発明に係る請求項３記載の打弦楽
器振動伝播防止装置は、打弦楽器の演奏時における床へ
の振動伝播を防止する打弦楽器振動伝播防止装置であっ
て、前記打弦楽器が発生する各音の振動波形の逆位相波
形の情報を記憶させた記憶手段と、前記打弦楽器が打弦
される毎に、前記記憶手段より発生音の振動波形に対応
する逆位相波形の情報を読み出して、読み出した逆位相
波形情報から逆位相振動信号を発生して出力する逆位相
振動信号発生手段と、前記打弦楽器と床との間に設けら
れて、前記逆位相振動信号発生手段より発生された逆位
相振動信号に応じた振動を発生する振動発生手段と、を
具備することを特徴とするAccording to a third aspect of the present invention, there is provided an apparatus for preventing vibration propagation of a stringed musical instrument, wherein the apparatus for preventing vibration propagation of a stringed musical instrument at the time of playing a stringed musical instrument is provided. Storage means for storing information of an inverse phase waveform of a vibration waveform of each sound to be generated, and information of an inverse phase waveform corresponding to the vibration waveform of the generated sound from the storage means each time the stringed instrument is struck. An anti-phase vibration signal generating means for reading and generating an anti-phase vibration signal from the read anti-phase waveform information and outputting the anti-phase vibration signal; Vibration generating means for generating a vibration in accordance with the anti-phase vibration signal.
【００１１】また、本発明に係る請求項４記載の打弦楽
器振動伝播防止装置は、上記請求項３記載の打弦楽器振
動伝播防止装置において、前記記憶手段に打弦楽器の種
類毎の逆位相波形の情報を記憶させると共に、それらの
逆位相波形情報のうちの任意の一つを選択する選択手段
を具備することを特徴とする。According to a fourth aspect of the present invention, there is provided the apparatus for preventing vibration propagation of a stringed instrument according to the third aspect, wherein the storage means stores an inverted phase waveform for each type of the stringed instrument. It is characterized by comprising a selecting means for storing information and selecting any one of the opposite phase waveform information.
【００１２】また、本発明に係る請求項５記載の打弦楽
器振動伝播防止装置は、上記請求項３又は請求項４記載
の打弦楽器振動伝播防止装置において、前記記憶手段
は、半導体メモリ、磁気記憶媒体、光記憶媒体、光磁気
記憶媒体であることを特徴とする。According to a fifth aspect of the present invention, there is provided the apparatus for preventing vibration of a stringed instrument according to the third or fourth aspect, wherein the storage means includes a semiconductor memory and a magnetic storage. A medium, an optical storage medium, and a magneto-optical storage medium.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施の形態につい
て図面を用いて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】図１は本発明の一実施の形態に係る打弦楽
器振動伝播防止装置の概略構成を示すブロック図であ
る。なお、本実施の形態に係る打弦楽器振動伝播防止装
置は、ピアノ用としたものである。FIG. 1 is a block diagram showing a schematic configuration of an apparatus for preventing vibration of a stringed instrument according to an embodiment of the present invention. The apparatus for preventing vibration propagation of a stringed instrument according to the present embodiment is used for a piano.
【００１５】この図において、本実施の形態に係る打弦
楽器振動伝播防止装置は、鍵盤３０と、逆位相振動信号
発生器３１と、増幅装置３２と、加振装置３３とを備え
て構成されている。鍵盤３０には各鍵に対してキースイ
ッチ（図示略）が設けられている。逆位相振動信号発生
器３１には、鍵盤３０の各ピアノ音の逆位相信号を記憶
させた半導体メモリ３４が設けられており、鍵盤３０が
打鍵される毎に打鍵された鍵のピアノ音の逆位相信号を
半導体メモリ３４より読み出して出力する。この場合、
逆位相信号はデジタルのデータとして半導体メモリ３４
に記憶されるので、該メモリ３４より読み出された後
に、Ｄ／Ａ変換されて出力される。Referring to FIG. 1, the apparatus for preventing vibration of a stringed instrument according to the present embodiment includes a keyboard 30, an antiphase vibration signal generator 31, an amplifier 32, and a vibrator 33. I have. The keyboard 30 is provided with a key switch (not shown) for each key. The anti-phase vibration signal generator 31 is provided with a semiconductor memory 34 in which an anti-phase signal of each piano sound of the keyboard 30 is stored. The phase signal is read from the semiconductor memory 34 and output. in this case,
The antiphase signal is converted into digital data by the semiconductor memory 34.
After being read from the memory 34, it is D / A converted and output.
【００１６】図２はピアノ音の波形とその逆位相波形を
示す波形図である。一般にピアノの音域は、Ａ0 ：27.5
ＨｚからＣ8 ：4186.0Ｈｚであり、夫々の音の逆位相信
号が半導体メモリ３４に記憶されており、鍵盤３０の各
キースイッチがオンすることで読み出される。但し、ピ
アノの音は純音（サイン波形）ではなく、図３に示すよ
うに高調波成分を含んでおり、この高調波成分の構成比
の違いにより音色となる。この音色はピアノの機種によ
り微妙に異なる為、機種毎に逆位相信号を作成して半導
体メモリ３４に書き込んでいる。この場合、当然なが
ら、機種毎に逆位相信号を選択できるように、選択手段
（例えば、読み出したいデータが記憶されているアドレ
スを指定するアドレス指定手段）が必要である。FIG. 2 is a waveform diagram showing the waveform of a piano sound and its inverse phase waveform. Generally, the range of the piano is A 0 : 27.5
From Hz C 8: a 4186.0Hz, antiphase signal of each of the sounds are stored in the semiconductor memory 34, is read out by the key switch of the keyboard 30 is turned on. However, the sound of the piano is not a pure tone (sine waveform) but contains a harmonic component as shown in FIG. 3, and a tone is produced by a difference in the composition ratio of the harmonic component. Since this tone slightly differs depending on the model of the piano, an opposite phase signal is created for each model and written in the semiconductor memory 34. In this case, of course, a selecting means (for example, an address specifying means for specifying an address at which data to be read is stored) is required so that an opposite phase signal can be selected for each model.
【００１７】増幅装置３２は、逆位相振動信号発生器３
１より出力される逆位相信号を所定レベルまで増幅して
出力する。なお、増幅装置３２と逆位相振動信号発生器
３１はピアノ２９（図４参照）の本体内に設けられる。
加振装置３３は、圧電素子又は電動コイルを備えて構成
されており、増幅装置３２にて増幅された逆位相信号で
振動する。加振装置３３は、図４に示すようにピアノ２
９の脚部に取り付けられて、ピアノ２９の鍵盤３０が打
鍵されたときに発生する振動を打ち消して、ピアノ２９
より発生する振動の床への伝播を阻止する。The amplifying device 32 includes an anti-phase vibration signal generator 3
1 is amplified to a predetermined level and output. The amplifying device 32 and the anti-phase vibration signal generator 31 are provided in the main body of the piano 29 (see FIG. 4).
The vibrating device 33 includes a piezoelectric element or an electric coil, and vibrates with the anti-phase signal amplified by the amplifying device 32. The vibration device 33 is, as shown in FIG.
9 to cancel the vibration generated when the keyboard 30 of the piano 29 is struck.
Prevent the propagation of the resulting vibrations to the floor.
【００１８】なお、上記半導体メモリ３４は記憶手段に
対応し、逆位相振動信号発生器３１は逆位相振動信号発
生手段に対応する。また、振動発生手段は加振装置３３
に対応する。The semiconductor memory 34 corresponds to a storage means, and the anti-phase vibration signal generator 31 corresponds to an anti-phase vibration signal generating means. The vibration generating means is a vibration device 33.
Corresponding to
【００１９】本実施の形態に係る打弦楽器振動伝播防止
装置は以上のように構成されており、鍵盤３０を打鍵す
ると、打鍵した鍵のピアノ音の逆位相信号が半導体メモ
リ３４より読み出されてＤ／Ａ変換された後、増幅装置
３２で所定レベルまで増幅されて加振装置３３に供給さ
れる。これにより、供給された逆位相信号で加振装置３
３が振動し、ピアノ音による振動が打ち消されて床への
伝播が阻止される。The apparatus for preventing vibration propagation of a stringed musical instrument according to the present embodiment is configured as described above. When the keyboard 30 is depressed, an opposite phase signal of the piano sound of the depressed key is read out from the semiconductor memory 34. After the D / A conversion, the signal is amplified to a predetermined level by the amplifier 32 and supplied to the vibrator 33. As a result, the vibrating device 3
3 vibrates, the vibration due to the piano sound is canceled, and propagation to the floor is prevented.
【００２０】このように、本実施の形態に係る打弦楽器
振動伝播防止装置では、ピアノ２９の各発生音の振動波
形と逆位相波形の信号を半導体メモリ３４に記憶させて
おき、鍵盤３０が打鍵される毎に発生音と逆位相の波形
の信号を半導体メモリ３４より読み出してその信号によ
りピアノ２９本体に振動を加えるので、打鍵されたとき
のピアノ音による振動を検出してから逆位相信号を演算
により求める必要がなく、これにより制御の遅れを最小
限に抑えることができる。この結果、上手く制御を行う
ことが可能となる。また、逆位相信号を演算により求め
る必要がないことから、逆位相振動信号発生３１におけ
るＣＰＵ（図示略）に高性能をものを使用する必要がな
く、価格の低減を図ることができる。無論、振動を検出
するセンサを必要としないので、この点からも価格の低
減を図ることができる。As described above, in the apparatus for preventing propagation of vibration of a stringed instrument according to the present embodiment, a signal having a vibration waveform and an anti-phase waveform opposite to the vibration waveform of each generated sound of the piano 29 is stored in the semiconductor memory 34, and the keyboard 30 is depressed. Each time the key is pressed, a signal having a waveform opposite in phase to the generated sound is read out from the semiconductor memory 34 and vibration is applied to the piano 29 body based on the signal. There is no need to obtain the value by an arithmetic operation, so that control delay can be minimized. As a result, the control can be performed well. Further, since it is not necessary to calculate the opposite phase signal by calculation, it is not necessary to use a high-performance CPU (not shown) in the opposite phase vibration signal generation 31, and the cost can be reduced. Of course, since a sensor for detecting vibration is not required, the price can be reduced from this point as well.
【００２１】なお、上記実施の形態では、ピアノ用とし
たが、打弦楽器であればどのようなものにも適用でき
る。この場合、打弦楽器の種類に応じて逆信号信号を作
成することは言うまでもない。In the above-described embodiment, the piano is used, but the invention can be applied to any stringed musical instrument. In this case, it goes without saying that the reverse signal signal is created according to the type of the stringed instrument.
【００２２】また、上記実施の形態では、逆位相信号を
半導体メモリ３４に記憶させたが、その他、磁気記憶媒
体、光記憶媒体、光磁気記憶媒体に記憶させても良い。
また、本発明の方法をプログラム化して前記各種記憶媒
体に記憶させるようにして良い。このようにすること
で、ソフトウェアの更新を極めて容易に行うことがで
き、打弦楽器の長期使用が可能となる。In the above embodiment, the anti-phase signal is stored in the semiconductor memory 34, but may be stored in a magnetic storage medium, an optical storage medium, or a magneto-optical storage medium.
Further, the method of the present invention may be programmed and stored in the various storage media. By doing so, the software can be updated very easily, and the stringed instrument can be used for a long time.
【００２３】[0023]
【発明の効果】以上説明したように、本発明によれば、
打弦楽器の各発生音の振動波形と逆位相波形の信号を記
憶しておき、打弦される毎に発生音と逆位相の波形の信
号を読み出してその信号により打弦楽器本体に振動を加
えるので、制御の遅れを最小限に抑えながらも打弦楽器
の床への振動伝播防止を低コストで実現できる打弦楽器
振動伝播防止方法及び装置を提供することができる。As described above, according to the present invention,
Since the signal of the vibration waveform and the opposite phase waveform of each generated sound of the percussion instrument is stored, and the signal of the opposite phase to the generated sound is read out every time the string is struck, the vibration is applied to the percussion instrument body by the signal. Further, it is possible to provide a method and an apparatus for preventing vibration propagation of a stringed musical instrument that can realize the vibration propagation of a stringed instrument to the floor at a low cost while minimizing a control delay.
【図１】本発明の実施の形態に係る打弦楽器振動伝播防
止装置の概略構成を示すブロック図である。FIG. 1 is a block diagram showing a schematic configuration of an apparatus for preventing vibration propagation of a stringed musical instrument according to an embodiment of the present invention.
【図２】同実施の形態に係る打弦楽器振動伝播防止装置
の動作を説明するための図である。FIG. 2 is a diagram for explaining an operation of the apparatus for preventing vibration propagation of a stringed instrument according to the embodiment.
【図３】同実施の形態に係る打弦楽器振動伝播防止装置
の動作を説明するための図である。FIG. 3 is a diagram for explaining an operation of the apparatus for preventing vibration propagation of a stringed musical instrument according to the embodiment.
【図４】同実施の形態に係る打弦楽器振動伝播防止装置
の動作を説明するための図である。FIG. 4 is a diagram for explaining the operation of the stringed instrument vibration propagation prevention device according to the embodiment.
【図５】従来の打弦楽器振動伝播防止装置の構成を示す
ブロック図である。FIG. 5 is a block diagram showing a configuration of a conventional stringed instrument vibration propagation preventing device.
２９ ピアノ ３０ 鍵盤 ３１ 逆位相振動信号発生器 ３２ 増幅装置 ３３ 加振装置 ３４ 半導体メモリ 29 piano 30 keyboard 31 anti-phase vibration signal generator 32 amplifying device 33 vibrating device 34 semiconductor memory
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｇ０５Ｄ 19/02 Ｇ１０Ｋ 11/16 Ｊ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // G05D 19/02 G10K 11/16 J
Claims (5)
播を防止する打弦楽器振動伝播防止方法であって、予め
前記打弦楽器が発生する各音の振動波形の逆位相の波形
情報を記憶しておき、前記打弦楽器が打弦される毎に前
記記憶しておいた逆位相波形情報を読み出して、その逆
位相波形情報に基づく振動を前記打弦楽器に加えること
を特徴とする打弦楽器振動伝播防止方法。1. A method for preventing vibration propagation of a stringed musical instrument, which prevents propagation of vibrations to the floor during performance of a stringed musical instrument, wherein waveform information of a phase opposite to the vibration waveform of each sound generated by the stringed musical instrument is stored in advance. In addition, every time the stringed instrument is struck, the stored opposite phase waveform information is read out, and a vibration based on the opposite phase waveform information is applied to the stringed instrument. Prevention method.
動波形の逆位相波形情報を記憶し、適用する打弦楽器に
応じて適宜選択することを特徴とする請求項１記載の打
弦楽器振動伝播防止方法。2. The vibration of a stringed musical instrument according to claim 1, wherein the information on the reverse phase waveform of the vibration waveform of the generated sound for each model or type of the stringed musical instrument is stored and selected as appropriate according to the applied stringed musical instrument. Propagation prevention method.
播を防止する打弦楽器振動伝播防止装置であって、 前記打弦楽器が発生する各音の振動波形の逆位相波形の
情報を記憶させた記憶手段と、 前記打弦楽器が打弦される毎に、前記記憶手段より発生
音の振動波形に対応する逆位相波形の情報を読み出し
て、読み出した逆位相波形情報から逆位相振動信号を発
生して出力する逆位相振動信号発生手段と、 前記打弦楽器と床との間に設けられて前記逆位相振動信
号発生手段より発生された逆位相振動信号に応じた振動
を発生する振動発生手段と、 を具備することを特徴とする打弦楽器振動伝播防止装
置。3. A striking instrument vibration propagation preventing device for preventing vibration propagation to the floor during playing of a stringed instrument, wherein information on an anti-phase waveform of a vibration waveform of each sound generated by the stringed instrument is stored. Storage means, for each time the stringed instrument is struck, reads out information of an antiphase waveform corresponding to the vibration waveform of the generated sound from the storage means, and generates an antiphase vibration signal from the read antiphase waveform information. Anti-phase vibration signal generating means, which is provided between the stringed instrument and the floor, and generates vibration corresponding to the anti-phase vibration signal generated by the anti-phase vibration signal generating means, An apparatus for preventing vibration propagation of a stringed musical instrument, comprising:
毎の逆位相波形の情報を記憶させると共に、それらの逆
位相波形情報のうちの任意の一つを選択する選択手段を
具備することを特徴とする請求項３記載の打弦楽器振動
伝播防止装置。4. An apparatus according to claim 1, wherein said storage means stores information on an inverted phase waveform for each model or type of a stringed musical instrument, and further comprises a selection means for selecting any one of the inverted phase waveform information. The apparatus for preventing vibration of a stringed instrument according to claim 3, characterized in that:
憶媒体、光記憶媒体、光磁気記憶媒体であることを特徴
とする請求項３又は請求項４記載の打弦楽器振動伝播防
止装置。5. The apparatus according to claim 3, wherein the storage means is a semiconductor memory, a magnetic storage medium, an optical storage medium, or a magneto-optical storage medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35604099A JP2001175245A (en) | 1999-12-15 | 1999-12-15 | Method and device for preventing propagation of vibration of percussion/string musical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35604099A JP2001175245A (en) | 1999-12-15 | 1999-12-15 | Method and device for preventing propagation of vibration of percussion/string musical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001175245A true JP2001175245A (en) | 2001-06-29 |
Family
ID=18447028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35604099A Pending JP2001175245A (en) | 1999-12-15 | 1999-12-15 | Method and device for preventing propagation of vibration of percussion/string musical instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001175245A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006305683A (en) * | 2005-04-28 | 2006-11-09 | Okuma Corp | Machine tool with vibration damping means |
| CN111210800A (en) * | 2020-02-21 | 2020-05-29 | 京东方科技集团股份有限公司 | Musical instrument sound deadening system and method |
-
1999
- 1999-12-15 JP JP35604099A patent/JP2001175245A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006305683A (en) * | 2005-04-28 | 2006-11-09 | Okuma Corp | Machine tool with vibration damping means |
| CN111210800A (en) * | 2020-02-21 | 2020-05-29 | 京东方科技集团股份有限公司 | Musical instrument sound deadening system and method |
| CN111210800B (en) * | 2020-02-21 | 2022-09-09 | 京东方科技集团股份有限公司 | Musical instrument sound deadening system and method |
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