EP1471498A2 - Dispositif de prise de son, instrument sonore et méthode de prise de son - Google Patents

Dispositif de prise de son, instrument sonore et méthode de prise de son Download PDF

Info

Publication number
EP1471498A2
EP1471498A2 EP04009134A EP04009134A EP1471498A2 EP 1471498 A2 EP1471498 A2 EP 1471498A2 EP 04009134 A EP04009134 A EP 04009134A EP 04009134 A EP04009134 A EP 04009134A EP 1471498 A2 EP1471498 A2 EP 1471498A2
Authority
EP
European Patent Office
Prior art keywords
sound
vibration
instrument
transducer
sound vibration
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.)
Withdrawn
Application number
EP04009134A
Other languages
German (de)
English (en)
Other versions
EP1471498A3 (fr
Inventor
Hermann Müller
Martin Lauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1471498A2 publication Critical patent/EP1471498A2/fr
Publication of EP1471498A3 publication Critical patent/EP1471498A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • G10H3/185—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 in which the tones are picked up through the bridge structure
    • 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
    • G10H1/32—Constructional details
    • 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
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/461—Transducers, i.e. details, positioning or use of assemblies to detect and convert mechanical vibrations or mechanical strains into an electrical signal, e.g. audio, trigger or control signal
    • G10H2220/465—Bridge-positioned, i.e. assembled to or attached with the bridge of a stringed musical instrument
    • 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
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/461—Transducers, i.e. details, positioning or use of assemblies to detect and convert mechanical vibrations or mechanical strains into an electrical signal, e.g. audio, trigger or control signal
    • G10H2220/525—Piezoelectric transducers for vibration sensing or vibration excitation in the audio range; Piezoelectric strain sensing, e.g. as key velocity sensor; Piezoelectric actuators, e.g. key actuation in response to a control voltage

Definitions

  • the invention relates to a sound vibration reduction system for converting Sound vibrations of a sound instrument in electrical signals, a sound instrument with such a sound vibration collection system and method for removing sound vibrations from a sound instrument.
  • the bridge In known systems, the bridge, usually made of wood, takes the string vibrations as mechanical vibrations, transforms and filters them and conducts them over the bridge feet onto a sound floor that further transforms the sound and finally radiates to the environment as airborne sound. Many common pickup systems couple to the structure-borne noise of this bridge.
  • the heart of the Pickup is the transducer that converts the mechanical vibrations into electrical ones Implement vibrations. Path changes in the form of mechanical vibrations are converted into electrical voltage changes by the converter.
  • Such Pickup systems can be in existing or custom-made recesses of the web are inserted or clamped, as in US 4,785,704 is described.
  • EP 0 609 553 B1 describes a pickup for musical instruments in which Voice coils vibrated by the resonance body of the instrument that reach into the annular gap of a permanent magnet. On the coils the induction voltage generated by the vibrations is tapped. The permanent magnet as a passive pole of movement of the formed in this way Transducer is decoupled by springs.
  • the object of the present invention is to provide a sound vibration reduction system for converting sound vibrations of a sound instrument into electrical ones Signals, a sound instrument with a sound vibration reduction system and Method of taking sound vibrations for conversion into electrical Specify signals with improved acoustic properties.
  • This task is with a sound vibration system with the features of the claim 1, a sound instrument with the features of claim 19 and Method for sound vibration reduction with the features of claim 24 or 25 reached.
  • Subclaims are directed to preferred designs.
  • An inventive sound vibration acceptance system for converting Sound vibrations of a sound instrument in electrical signals have at least a mechanical-electrical converter with one active and one passive Movement pole on, the active movement pole with a swinging Element of the sound instrument either directly or via an intermediate one Pass-through element can be brought into contact.
  • At least one inertial mass element is connected to the passive movement pole of the transducer, this inertial mass element is decoupled from vibration with a bearing, which is independent of an existing connection via the converter and the vibrations parallel to the direction of the acoustic vibrations to be reduced decoupled.
  • the bridge of a stringed instrument are advantageously two transducers and two inertial masses are used.
  • the at least one additional inertial mass element is essentially at rest against the vibration to be picked up, both against the sound vibration pick-up point as well as against other vibrating parts of the Instrument.
  • the invention uses Sound vibration acceptance system one or more transducers, their passive movement pole with independent of the actual transducer Inertial masses are connected separately via vibration-isolating pickup bearings stored in a reference environment at rest are. Inertia masses of at least 20 g are advantageous.
  • the bearing is decoupled from vibrations referred to when they are at least in the direction parallel to the direction of the decrease Sound vibrations decouples vibrations.
  • a sound vibration acceptance system has at least an inertial mass with transducer.
  • two or more can also be used Inertia masses can be provided with a corresponding number of transducers.
  • the transducers can be interconnected to amplify the electrical signal.
  • the Converters in phase or in phase when operating the sound instrument vibrate the signals become out of phase or in phase with each other switched to achieve an optimal gain result.
  • the system for sound vibration reduction of quiet instruments especially of semi-acoustic ones Instruments whose handling corresponds to original acoustic instruments, but which should not emit a loud direct sound.
  • semi-acoustic Instruments can e.g. B. Practice concert musicians without being too remote or to rely on soundproofed rooms.
  • Such instruments with a sound vibration acceptance system according to the invention can be in the form Weight, handling and response to the original acoustic instruments correspond as far as possible. The musician can use the largely original Sound z. B. perceive speakers positioned near headphones or near the ears. Nevertheless, the basic playing technique on such a semi-acoustic Instrument correspond to the original instrument.
  • the sound vibration acceptance system according to the invention is different Instruments can be used, but e.g. B. also as a pickup on a glass pane connectable, which records the sounds and sounds of the environment. Especially however, it is advantageous to use a stringed instrument, e.g. B. one Cello.
  • the modulus of elasticity (or the material stiffness) of the inertial mass element including the connection of the inertial mass element to the passive movement pole of the transducer has a value of at least 20 N / mm 2 .
  • the vibration-decoupling storage preferably has in the direction of Vibration of the sound to be picked up a bearing stiffness of less than (TM / 4) (N / (g ⁇ mm)) if the above special storage of the inertial mass is supplemented by additional bearings such as the material composite between the active and passive movement pole in some transducer types, whereby this stiffness includes all the effects supporting the inertial mass.
  • the vibration decoupling Storage has also preferably in the direction of Vibration of the sound to be picked up a bearing stiffness of less than (TM / 8) (N / (g.
  • TM stands for the size of the inertial mass in grams. Falling below the stiffness specified above proves to be particularly favorable for the optimal conversion of the sound vibrations in sound-accurate electrical signals, since the mass of inertia and thus the passive movement pole of the transducer particularly effective against the reception of Disturbing sound and phase-shifted useful sound from the direction of the attachment the inertial mass storage is decoupled from the reference environment.
  • the overall stiffness of the inertial mass is in the direction of useful sound vibration in relation to the mass of inertia in such preferred embodiments so low that the natural frequency of the spring-mass system Values below the hearing threshold can be shifted. So the inertial masses stay on the passive converter poles with low damping and positioning measures stand still throughout the entire transmission range and enable a linear frequency response and maximum effectiveness of the Converter.
  • An immobility and rigidity of the vibration-decoupling bearing in on the other hand provides the directions transverse to the direction of the useful sound vibration
  • the sound vibration tapping point of the sound body designed in such a way that the usable vibration direction in normal use essentially is parallel to the earth's surface, such as B. when installed in the bridge of a cello, then the bearing is designed stiff in the direction of gravity. So she can take static support and the flexible direction of the vibration decoupling Storage remains free for the optimal coupling of the transducers to the Sound vibration acceptance point of the sound instrument. It turns out to be cheap when the vibration-decoupling mounting has a stiffness parallel to Direction of the acoustic vibration to be reduced by at most half the stiffness perpendicular to this direction.
  • the vibration-decoupling bearing should be in the direction of the one to be removed Be sonic vibration compliant, so a preferred direction of movement in this Direction.
  • This preferred direction should be as little as possible, advantageously at least less than 32 ° from the direction of vibration of the to be removed Sound vibration deviate.
  • the vibration-decoupling bearing can be a linear guide or a Include curve guidance.
  • the vibration-isolating bearing preferably has at least one joint.
  • the vibration decoupling Storage as a parallelogram guide with at least two articulated arms and four Joints executed. On two opposite sides of this parallelogram guide are those elements that can be moved against each other should.
  • Solid-state joints have proven to be a simple and inexpensive option, especially rubber joints or flex joints. Such solid-state joints can consist of metals or metal components, thermosetting, contain thermoplastic or elastomeric plastics. Likewise, corresponding Joints made of textiles, fiber materials or as composite materials or Compounds of the above components can be executed. Solid joints in particular have the advantage of absolute freedom of play. Both the most common bearing play, on the other hand, can lead to other joint designs disturbing rattling noises, especially certain resonance frequencies, to lead.
  • the distance between two outer advantageously Articulated arms chosen at least half as long as the length of the articulated arms, thus the parallelogram sides parallel to the direction of the vibration to be picked up at least half as long as the parallelogram sides perpendicular to the Direction of the vibration to be picked up.
  • the width of the articulated arms is advantageously chosen to be at least half as large become like the length of the articulated arms.
  • the bends in the joints are advantageously at most 1 / 10th times as thick as the length of the joints ,
  • the pressing device can solid springs, z. B. compression springs or rubber springs, but also have gas springs or magnetic repulsion springs. With appropriate Arrangement on the sound instrument, the pressing device can also Use the weight of the inertial mass.
  • the active pole of movement of the transducer and the sound vibration tapping point of the sound instrument can be directly connected to each other.
  • a pass-through element located in the form of a plunger for transmitting the sound vibrations.
  • This pestle can either be at the sound vibration take-off point and be attached to the active pole of movement of the transducer or only on one of these Elements and on the other of these elements can only be pressed.
  • An embodiment is also possible in which the plunger is only pressed at both points becomes.
  • the pressing can, for. B. in the preferred described above Embodiment with the help of the pressing device.
  • Such a pass-through element takes over the sound vibrations of the sound vibration take-off point energized and in phase and passes it on as Longitudinal vibrations continue on the active pole of movement of the transducer.
  • a pass-through element of low mass and high has proven particularly advantageous Proven rigidity relative to its mass. So there are resonance frequencies, which are far above the vibrations to be transmitted, so that the plunger conducts the vibrations linearly and without superposition through natural resonances. Due to a large diameter of the plunger in relation to its Length are bending vibrations as an undesirable additional form of vibration kept low.
  • Hard elastomeric material is advantageous as material for such a tappet, in particular if the sound vibration tapping point from that for musical instruments typical material is wood. Become the materials of the sound vibration collection point Touching tappet areas selected too hard, it can be particularly difficult high sound amplitudes and sonic rapidities cause the plunger and the active transducer pole no longer vibrates due to inertia can follow and the plunger tip lifts from the sound absorption point. In these In extreme cases, there would be unwanted sound distortion or incorporation of the ram into the sound vibration take-off point.
  • the pestle takes over here So the task of a filter and damper for overdriven portions of the removed Useful noise and the task of protecting against wear and tear or changes the size and pressure distribution of the contact surface between the plunger and Sonic vibration off point.
  • the corner frequency or the corner amplitude for the response of the damping in the range outside the top frequencies to be transmitted or above the greatest volume to be transmitted it has proven to be advantageous proven to be the sum of the masses on the active transducer side (essentially the mass of the ram and the mass of the vibrating transducer components) to choose particularly small in relation to the sum of the masses on the passive transducer side (essentially the mass of the inertial mass and parts the inertial mass storage).
  • this connection point is designed to be angle-tolerant.
  • the Cylindrical, spherical or pointed element can either be on the plunger itself or be trained at the sound vibration tapping point.
  • the loose connection point is less than eight times the weight that the Inertia mass and the converter corresponds. It is also advantageous if the loose connection point has a relative sliding friction number of less than 0.3.
  • the sound vibration acceptance system according to the invention is in contrast to the conventional converter systems also with converters without composite materials can be used between active and passive movement pole.
  • An example of one such a composite material-free converter would be a capacitive converter in which the sound vibration absorption surface is metallized and at a short distance a counter surface divided into two metallized pole halves parallel to this surface is arranged, which is applied to the passive side of the transducer. at Vibration-induced changes in distance change the capacity of the arrangement. This change in capacitance can be achieved using suitable electronic circuits as with the condenser microphones in electrical voltage fluctuations convert.
  • a sound instrument according to the invention has a sound vibration reduction system according to the invention, which picks up the sound vibrations at at least one sound vibration reduction point, which vibrations are set in motion during operation of the sound instrument.
  • the sound vibration take-off point can advantageously comprise a swing arm, one end of which has a vibration surface that is connected to the transducer of the sound vibration take-off system according to the invention, the swing arm having an elongated shape. This arm transfers the tapped off Nutzschallschwingept and is advantageously designed such that at least 2/3 of the arm length are free of voltage conditions, which are due to other mechanical functions of the sound instrument such.
  • the sound vibration reduction system according to the invention can Replace bridge of a stringed instrument or parts of it.
  • this couples Sound vibration reduction system according to the invention on the sound floor or on another structure-borne component of the sound instrument, for. B. the saddle, the bass bar or the tuning stick of a stringed instrument.
  • the sound instrument according to the invention can be a normal instrument which with the help of the sound vibration reduction system according to the invention Sound vibrations are picked up and converted into electrical signals become.
  • a preferred further development of the sound instrument according to the invention is a Instrument that produces little or no direct sound in the audible range.
  • Such semi-acoustic instruments are used e.g. B. by stringed instruments formed with or without a small sound box.
  • the sound vibrations are with Removed with the help of the acoustic vibration acceptance system according to the invention, converted into electrical signals, electronically processed and directly or output via loudspeaker after amplification.
  • the active movement pole of the at least one transducer either directly or via a pass-through element with a sound vibration take-off point a sound instrument is in contact and the passive movement pole with at least one inertial mass element is connected, which in the direction of sound vibration to be decoupled from vibration and from a possibly existing connection via the converter is stored independently.
  • FIG. 1 shows the sectional view through a sound vibration reduction system according to the invention, how it z. B. can be used as a replacement for the bridge of a cello can.
  • Figure 2 shows a perspective view of this embodiment. there are usually identical elements for the sake of clarity only once provided with a corresponding reference number.
  • the entire sound vibration absorption system is designated 30. 1 designated a substructure, which is supported by feet 10 on the sound instrument. On the middle part of the substructure 1 is supported by a support leg 12 of the wooden superstructure 5 from. The strings 9 of the sound instrument are in the string guide notches 18 of the superstructure 5 stored.
  • the superstructure 5 has in this embodiment outer feet 13, which are increasingly slender towards their ends, and at its extreme ends by two clamps, e.g. B. eccentric fittings, are positively and non-positively connected to the substructure 1.
  • the feet are 13 designed such that they are flexible joints due to their slim design represent and the pendulum movement of the superstructure 5 in the direction 21, which further below is described in detail, oppose little resistance, but the necessary restoring force for the pendulum vibrations and the correct global Ensure the position of the superstructure 5 relative to the substructure 1 and the strings 9.
  • the metatarsus 12 absorbs the static bearing forces, the Pressing via the installation force and the proximity of the installation point to the node of the pendulum vibrations avoid unwanted vibrations.
  • the static contact pressure is caused by the string tension of the strings 9, the the superstructure 5 presses in the direction of the substructure 1, which in turn extends over the Support feet 10 on the body 31 of the instrument (see Figure 4).
  • the outer feet 13 are designed as a bending beam
  • the middle takes over Foot 12 the static loads that z. B. 250 N to 300 N at a string tension of 4 160 N can be.
  • Articulated arms 42 are fastened to the middle part of the substructure 1 via joints 41. These articulated arms 42 are in turn via joints 41 with the inertial mass elements 2 connected.
  • the articulated arms 42 are, for. B. plastic joints one Length of about 1 cm.
  • the width that is used for the selected representation of the Figures 1 and 3 is measured perpendicular to the plane of the figure, z. B. 1.5 cm.
  • the joints 41 are in the described embodiment with thinned areas a thickness less than 0.1 times the length of the articulated arms.
  • the parallelogram-like Design is so chosen that movement of the inertial mass elements 2 relative to the substructure 1 in direction 22 is easily possible, one Movement perpendicular to this direction is very limited.
  • a membrane 14 with a piezoelectric coating Located at the area of the inertial mass elements 2 shown in FIG a membrane 14 with a piezoelectric coating. Electrical connections for tapping on the piezoelectric membrane by mechanical Electrical voltage generated are schematically by supply lines 15 shown, the z. B. lead to an electronic evaluation unit.
  • the inertial mass elements 2 have z. B. a mass of 150 g.
  • the piezoelectric Membrane 14 has a diameter in the preferred embodiment of 27 mm, a thickness of 0.3 mm and is on the inertial mass elements 2nd glued by means of an overlapping ring contact surface of 0.5 mm width.
  • a plunger element 7 made of hard elastomer Glued on material.
  • the thickness of this plunger 7 is 1 mm to 2 mm in one Diameter of z. B. 7 mm.
  • the plunger 7 are z. B. simply by Contact pressure of the prestressed compression springs 4 on the superstructure 5.
  • the end face of the plunger 7 facing the sound vibration absorption surface can have a slightly spherical shape, so that only a very small area, which do not necessarily correspond to the entire end face of the plunger 7 must be in contact with the superstructure 5 at the sound vibration take-off point 8.
  • a complete according to the invention Transducer unit formed from the components tappet 7 and the vibratable Proportion of the converter membrane 14 as components which represent the active movement pole represent the transducer system, and from the no longer vibratable Edge areas 6 of the membrane, the inertial mass 2 and also one effective portion of the mass of the vibration decoupling Inertial mass storage 3, which are the components of the passive movement pole of the converter system.
  • swing arms 11 are provided. These swing arms do not take over essential static loads.
  • the strings are supported on the strings 9 the midfoot 12.
  • the swing arms 11 have only the task, the sound vibrations with the greatest possible amplitude and the smallest possible damping to the tappets 7 to transfer.
  • Lateral incisions 16 and central incisions 17 can be provided in the superstructure 5 be similar to conventional bridge instrument bridges Optimize sound transmission. Such incisions 16, 17 make the web more flexible against the pendulum vibrations 21 and secure a position of the pendulum vibration axis near the contact area of the midfoot 12 on the base 1.
  • FIG. 4 shows an inventive sound instrument with an inventive one Sound vibration pickup system 30.
  • the embodiment is a semi-acoustic Cello with a semi-acoustic body 31, a neck 33 and a spike 34, the z. B. can be designed extendable.
  • To the side of the Semi-acoustic sound body 31 are support elements 32 which, for. B. as Can serve knee support.
  • the semi-acoustic body 31 is not suitable emit loud direct sound like the sound body of a conventional one Cello would be.
  • the signals are interconnected in parallel or in series, so that on the output side either the impedance halved or the voltage level be doubled.
  • the small diameter of the plunger 7 in relation to Diaphragm diameter of the membrane 14 causes only a small lever arm Torsion of the membrane 14 in bending vibrations, so that the initiation undesirable additional forms of vibration is suppressed even more effectively.
  • the vibrations are in the direction 21 via the plunger 7 on the membrane 14 transfer.
  • the passive movement pole 6 of the converter unit described above is in connection with the inertial mass elements 2, the vibration decoupling are stored.
  • the inertial mass elements 2 are essentially at rest against the vibration, which is carried out by the superstructure 5 as well possibly from the soundboard of the sound body 31 on which the feet 10 are supported.
  • the compression springs 4 are not in the Parallelogram guides 3 are provided, but support the inertial elements 2 directly against the substructure 1. Such support is such. B. in the embodiment of Figure 6 described below realized.
  • the described embodiments can replace a web String instrument can be used. Sound vibration reduction systems according to the invention can also run as a separate assembly and to existing ones Saddles, bars or other vibrating surfaces of the instrument coupled become.
  • FIG. 5 shows an alternative embodiment for the superstructure 5.
  • the same elements are again identified by the same reference numerals, with each again only one of the possibly duplicate elements with the Reference number is provided.
  • the sound vibration tapping points 8 Operation of the plunger 7 with its upper contact surface.
  • the swing arms 11 and the side feet 13 are fused together.
  • Such an embodiment can e.g. B. especially for small superstructures 5 be advantageous since the pickup tappet 7 as far from the Center axis 12 should be placed away to tap large amplitudes to be able to accommodate large inertial mass elements 2.
  • For further notches between the swing arms 11 and the outer feet 13 then there may be no more space. Nevertheless occurs with this tripod arrangement Sound vibration tapping points 8 a high undamped vibration amplitude on.
  • z. B. on a cello or a double bass is often sufficient space to close the five-foot arrangement of Figures 1 and 2 realize.
  • FIG. 1 An alternative construction is shown in FIG. This is the web 51 of a bass, which is shown here only as a partial view. Via a clamp 19 of the system on the bridge foot of the bass bridge 51 is only schematic shown bracket 23 attached, the sound vibration reduction system according to the invention supports. Again, via a parallelogram guide 3, the Comprises articulated arms 42 and joints 41, an inertial mass element 2 is held, that is via a compression spring 4 against the bracket 23 on the clamp 19 supports. As already described with reference to FIG. 1 and FIG. 2, this represents Inertial mass element 2 over the edge fastening of the membrane 14 passive movement pole 6, the active movement pole of the piezoelectric Diaphragm 14 is connected to the plunger 7. Figure 6 clearly shows that spherical contact surface of the plunger 7 for contact with the sound vibration take-off point 81st
  • Figure 7 shows a bass bridge 51 with possible sound vibration removal points 81.82.
  • the reference numbers designate here 81 and 82 the contact surfaces between plunger 7 and that part of Superstructure 5, on which the sound vibration is picked up.
  • the bridge 51 shows essentially the horizontal position of the violin vertically upwards, so that here too gravity in a stiff direction of the Storage 3 acts.
  • the Angular alignment of the compliant direction of movement by appropriate Alignment of the sound vibration absorption system or the contained therein Joints in relation to the sound body are chosen accordingly.
  • the sound vibration removal system according to the invention can be used for weight loss of sound vibrations on original acoustic instruments, or semi-acoustic Instruments that do not emit loud direct sound are used become. Because of the statically stable, but in the area of the sound-conducting Components of low-loss construction and because of the relative to the known Pickup systems with very high amplitudes on the transducers result significantly higher electrical output levels.
  • the constructionally high useful sound vibration signal does when using regenerative converter types like the piezoelectric diaphragm transducer described, the preamplification of the electrical output signal and avoids the associated negative effects. Cost of preamplifier and necessary supply with Auxiliary energy is eliminated.
  • the with the acoustic vibration system according to the invention equipped musical instruments can if necessary directly to the usual Line-in sockets connected to inexpensive recording devices and amplifiers become.
  • the high mass contributes significantly to the high electrical output signal passive movement pole of the converter and the effective decoupling of this Masses due to flexible joint bearings.
  • the inertial mass is relative to the vibration-decoupling bearings to the sound pick-up point stored in a global reference environment.
  • the place of fortification these bearings can optionally be in the immediate vicinity of the sound collection point, but also selected at more distant parts of the sound body will take place or even in places that are not part of the sound instrument represent.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP04009134A 2003-04-22 2004-04-16 Dispositif de prise de son, instrument sonore et méthode de prise de son. Withdrawn EP1471498A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10318216 2003-04-22
DE2003118216 DE10318216B4 (de) 2003-04-22 2003-04-22 Schallschwingungsabnahmesystem, Klanginstrument und Verfahren zur Abnahme von Schallschwingungen

Publications (2)

Publication Number Publication Date
EP1471498A2 true EP1471498A2 (fr) 2004-10-27
EP1471498A3 EP1471498A3 (fr) 2005-02-02

Family

ID=32946396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009134A Withdrawn EP1471498A3 (fr) 2003-04-22 2004-04-16 Dispositif de prise de son, instrument sonore et méthode de prise de son.

Country Status (2)

Country Link
EP (1) EP1471498A3 (fr)
DE (1) DE10318216B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016159911A1 (fr) 2015-03-31 2016-10-06 Ugur Ibrahim Metin Nouveau chevalet et son procédé de fabrication en lutherie
CN112037743A (zh) * 2016-01-20 2020-12-04 雅马哈株式会社 乐器和声换能器装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978945A (en) * 1959-09-08 1961-04-11 Dopera Rudolph Magnetic pick ups
US4211139A (en) * 1977-04-20 1980-07-08 Nippon Gakki Seizo Kabushiki Kaisha Pickup mechanism
US4867027A (en) * 1987-08-11 1989-09-19 Richard Barbera Resonant pick-up system
US5461193A (en) * 1993-01-25 1995-10-24 Schertler; Stephan Sound pick-up for resonant bodies
EP1258863A2 (fr) * 2001-04-27 2002-11-20 Yamaha Corporation Unité de détection incorporée dans un instrument à cordes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539700A (en) * 1968-10-10 1970-11-10 Alfred Johnson Stringed musical instrument bridge with dual pickups
US4785704A (en) * 1986-06-19 1988-11-22 Fishman Lawrence R Musical instrument transducer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978945A (en) * 1959-09-08 1961-04-11 Dopera Rudolph Magnetic pick ups
US4211139A (en) * 1977-04-20 1980-07-08 Nippon Gakki Seizo Kabushiki Kaisha Pickup mechanism
US4867027A (en) * 1987-08-11 1989-09-19 Richard Barbera Resonant pick-up system
US5461193A (en) * 1993-01-25 1995-10-24 Schertler; Stephan Sound pick-up for resonant bodies
EP1258863A2 (fr) * 2001-04-27 2002-11-20 Yamaha Corporation Unité de détection incorporée dans un instrument à cordes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DIDGERIDOO-HAMBURG.DE: "WOOD DATA"[Online] XP002307463 Gefunden im Internet: URL:http://www.didgeridoo-hamburg.de/E/CAD SD/wood-data/wood-data.htm> [gefunden am 2004-11-24] *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016159911A1 (fr) 2015-03-31 2016-10-06 Ugur Ibrahim Metin Nouveau chevalet et son procédé de fabrication en lutherie
CN112037743A (zh) * 2016-01-20 2020-12-04 雅马哈株式会社 乐器和声换能器装置

Also Published As

Publication number Publication date
DE10318216A1 (de) 2004-11-25
EP1471498A3 (fr) 2005-02-02
DE10318216B4 (de) 2006-03-16

Similar Documents

Publication Publication Date Title
US4750397A (en) Electronic musical instrument with elastomeric strings and shielded bimorphic transducers
US20190108822A1 (en) Musical Instrument Sound Generating System with Linear Exciter
EP0434754A1 (fr) Dispositif de rayonnement du son et instrument de musique
DE102019203128B4 (de) Musikinstrumententonabnehmer und Musikinstrument
EP1734786A3 (fr) Panneau acoustique et son procédé de fabrication
DE19641113A1 (de) Eigenresonanter Lautsprecher
EP2123109A1 (fr) Haut-parleur plan ainsi que procédé pour le réglage du comportement d'oscillation d'un système oscillant
EP0198043A1 (fr) Dispositif de prise de son pour instruments de musique a cordes.
CN107836021A (zh) 乐器用拾音装置
WO2008086055A2 (fr) Système et procédé permettant de générer un son à distance à partir d'un instrument de musique
EP0609553B1 (fr) Pick-up pour instruments de musique avec caisse de résonance
US9877110B2 (en) Ribbon support system for electrodynamic microphone
DE10318216B4 (de) Schallschwingungsabnahmesystem, Klanginstrument und Verfahren zur Abnahme von Schallschwingungen
DE102016108690A1 (de) Vibrierender Aktor
DE102013102302A1 (de) Verfahren und Vorrichtung zur Dämpfung eines Membranophons, sowie bevorzugte Verwendung bei der kleinen akustischen Trommel eines Schlagzeugs
DE102013211627A1 (de) Elektroakustischer Wandler
DE69718130T2 (de) Stilles Saiteninstrument mit einem Korpus mit viskoelastischen Schicht zum Dämpfen der Vibrationen
Sierra et al. An audio-tactile artinstallation for hearing impaired people
DE3023155A1 (de) Kontaktmikrofon zur aufnahme der menschlichen sprache
DE102009034110B3 (de) Lautsprecherbox
EP2012039B1 (fr) Dispositif de réduction des effets nuisibles du bruit d'appareils ménagers HiFi
US10937395B2 (en) Saddle for a stringed musical instrument
DE202006020190U1 (de) Automatisiertes Schlagzeug mit pneumatischem Antrieb
AT312720B (de) Anordnung mit wenigstens einem Mikrophon zur Schallabnahme vom Resonanzboden von Musikinstrumenten
DE202013100615U1 (de) Vorrichtung zum Erfassen und Erzeugen von Schwingungen an Resonanzkörpern akustischer Instrumente

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

RTI1 Title (correction)

Free format text: SOUND PICK-UP DEVICE, SOUND INSTRUMENT AND METHOD FOR PICKING-UP SOUND VIBRATIONS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20050614

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060701