CN103151033B - Keyboard instrument - Google Patents

Abstract

The present invention relates to a kind of keyboard instrument.Under sound attenuating pattern, the operation output playing information of correspondence key, and the drive signal based on playing information instruction sound is supplied to the exciting unit on castanets.The castanets vibrate in response to the mechanical oscillation that exciting unit is produced and produce active vibration castanets sound and the acoustic efficiency produced by castanets to the Vibration propagation of string.Exciting unit has the voice coil loudspeaker voice coil encouraged by drive signal.The length of voice coil loudspeaker voice coil be equal to or less than twice of maximum offset (sw) of the vibration component for being connected to castanets and the magnetic path width (mw) in magnetic circuit space and it.By as described above the length for determining voice coil loudspeaker voice coil, it can obtain for encouraging effective driving force of castanets and the enhancing response of high frequency band.

Description

Keyboard instrument

Technical field

A kind of technology for the sound that can be generated the present invention relates to abundant keyboard instrument.

Background technology

Generally, pianotron has castanets unlike primary sound piano, because pianotron is configured to produce from loudspeaker Raw electro-acoustic.However, Japanese patent application disclosed JP2008-292739A discloses a kind of technology, i.e., in pianotron Upper installation castanets simultaneously install loudspeaker on castanets, so that by encouraging the castanets with loudspeaker, chatter is sent from castanets Sound.So as to which pianotron can not only produce electro-acoustic, due also to generating abundant original from the rattle that castanets are sent Sound bass high sound.Patent document mentioned above also discloses this technology, that is, is applicable not only to pianotron, and configuration For the primary sound piano (noise reduction piano) for not allowing any string to vibrate.

In order to allow castanets to vibrate, using the actuator of voice coil type, wherein being produced by the voice coil loudspeaker voice coil for being transfused to drive signal Driving force.Such actuator can be realized with a low cost because having the structure similar to voice coil type loudspeaker, and And on the other hand, voice coil loudspeaker voice coil feature has a strong impact on the drive characteristic of actuator.For example, when the amplitude of the vibration motivated is with edge drive The increase of the voice coil loudspeaker voice coil length of power direction and when increasing, the response of high band will be reduced, because the increase of coil inductance is by companion With the increase of coil turn.Therefore, using voice coil type loudspeaker as actuator come in the case of encouraging castanets, even if Desired tonequality can be produced when producing sound as loudspeaker, expectation tonequality can not be produced when encouraging castanets.

The content of the invention

In view of above-mentioned problems of the prior art, it is an object of the invention to provide a kind of keyboard instrument, it has For allowing the actuator of voice coil type that castanets vibrate, wherein can both obtain allowing effective driving force that castanets vibrate, can also Obtain the enhancing response of high band.

To achieve these goals, the invention provides a kind of improved keyboard instrument, including：Multiple keys (2)；Castanets (7)；Exciting unit (50), including vibration component (51) and the main body (52) with magnet (522), the vibration component have cloth Put the voice coil loudspeaker voice coil (512) in the magnetic circuit space (525) formed by magnet (522), vibration component (51) be connected to castanets (7) and Exciting unit (50), the exciting unit drives voice coil loudspeaker voice coil (512) in response to drive signal, to allow vibration component (51) to vibrate；Branch Unit (55) is supportted, is arranged on and is different from a part for castanets and is configured to supportive body (52) in keyboard instrument；Playing information Generation unit (120), suitable for producing playing information corresponding with the operation of key；With signal generation unit (15), suitable for based on Playing information produces sound wave signal, and produced audio volume control signal is fed to voice coil loudspeaker voice coil (512) as drive signal, with Thus vibration component (51) is allowed to vibrate, wherein length of the voice coil loudspeaker voice coil (512) along vibration component direction of vibration is equal to or less than vibration structure Length (mw) sum of two times of part (51) maximum offset (sw) with magnetic circuit space (525) along direction of vibration.Note that in order to Readily appreciate, each element of embodiment described later of the invention is represented with identical reference in bracket.

By this construction because determine voice coil loudspeaker voice coil (512) be equal to along the length on the direction of vibration of vibration component or Less than vibration component (51) maximum offset (sw) two times of length (mw) with magnetic circuit space (525) along direction of vibration it With, it is possible to obtain the effective driving force for allowing castanets to vibrate and the enhancing response of high band can also be obtained.

According to a preferred embodiment of the present invention, magnet (522) is annular；Main body is included by annular soft magnetic material shape Into and the first yoke (521) for being arranged on the upper surface of magnet (522) and the second yoke (523) formed by soft magnetic material, should Second yoke (523) includes plate-like base unit and cylindrical bar, and the plate-like base unit is configured in the upper of base unit The lower surface of magnet (522) is received on surface, the cylindrical bar is upwardly extended from the center of base unit so that bar is accommodated Hollow space in magnet (522)；Magnetic circuit space (525) is formed between the inner surface of the first yoke (521) and the outer surface of bar； Extensional vibration of the vibration component (51) along bar；And determine along a position of the longitudinal direction of the upper end of bar so that the position Equal to or higher than the upper surface of the first yoke (521) position and have moved up maximum equal to or less than vibration component (51) The position on the top of the voice coil loudspeaker voice coil after offset (sw).

According to another aspect of the present invention, an improved keyboard instrument is set, and it includes：Multiple keys (2)；Castanets (7)； Exciting unit (50), including vibration component (51) and the main body (52) with magnet (522), the vibration component, which has, to be arranged in By the voice coil loudspeaker voice coil (512) in the magnetic circuit space (525) of magnet (522) formation, vibration component (51) is connected to castanets (7) and excitation Unit (50), the exciting unit drives voice coil loudspeaker voice coil (512) in response to drive signal, to allow vibration component (51) to vibrate；Support is single First (55), are arranged on and are different from a part for castanets and are configured to supportive body (52) in keyboard instrument；Playing information is produced Unit (120), suitable for producing playing information corresponding with the operation of key；With signal generation unit (15), suitable for based on performance Information produces sound wave signal, and produced audio volume control signal is fed to voice coil loudspeaker voice coil (512) as drive signal, with thus Vibration component (51) is allowed to vibrate, wherein main body includes being formed by annular soft magnetic material and being arranged in the upper surface of magnet (522) On the first yoke (521) and the second yoke (523) for being formed by soft magnetic material, second yoke (523) includes plate-like base unit And cylindrical bar, the plate-like base unit be configured on the upper surface of base unit receive magnet (522) lower surface, The cylindrical bar is upwardly extended from the center of base unit so that bar is contained in the hollow space of magnet (522)；Magnetic circuit is empty Between (525) formed between the inner surface of the first yoke (521) and the outer surface of bar；Vibration component (51) shakes along the longitudinal direction of bar It is dynamic；And determine along a position of the longitudinal direction of the upper end of bar so that the position is equal to or higher than the upper table of the first yoke (521) The position in face and the top that voice coil loudspeaker voice coil after maximum offset (sw) is had moved up equal to or less than vibration component (51) Position.

According to a further advantageous embodiment of the invention, keyboard instrument further comprise at least another magnet (526, 527), it is arranged at least one in the downside of the upper surface of the first yoke (521) and the second yoke (523).

According to a further advantageous embodiment of the invention, keyboard instrument further comprises the first rod-like members (6), and second Rod-like members (75), first rod-like members extend and are arranged on a surface of castanets (7) in a first direction, second bar Shape part extends and is arranged on another surface of castanets (7) in a second direction different from the first direction.

According to the further embodiment of the present invention, vibration component (51) is across castanets (7) and the first rod-like members (6) Or second be connected to castanets (7) at the opposite position of rod-like members (75).

Present embodiments can apply to the primary sound sound generation mechanism (4,5) that generation primary sound sound is operated in response to key Keyboard instrument (for example, grand piano, upright piano), or be applied to the electricity that generation electro-acoustic is operated in response to key Another keyboard instrument (for example, pianotron) of sub- sound generating apparatus.

Brief description of the drawings

Some preferred embodiments of the present invention are described in detail referring to following accompanying drawings, these preferred embodiments, which are only used as, to be shown Example, wherein：

Fig. 1 is the see-through view of the outward appearance of grand piano according to embodiments of the present invention；

Fig. 2 is the schematic diagram of the grand piano internal structure according to embodiment；

Fig. 3 is the arrangement schematic diagram of the exciting unit in the grand piano according to embodiment；

Fig. 4 is the cross-sectional view of the exciting unit in the grand piano according to embodiment；

Fig. 5 is the profile of the exciting unit shown in Fig. 4；

Fig. 6 is the diagrammatic cross-section of the voice coil structure being included in exciting unit according to embodiment；

Fig. 7 A to Fig. 7 C are showing the profile of three kinds of different types of voice coil loudspeaker voice coils, for illustrating the excitation according to embodiment The optimum structure used in voice coil loudspeaker voice coil in unit；

Fig. 8 A to Fig. 8 C are showing the profile of three kinds of different yoke arrangement forms, for illustrating swashing according to embodiment Encourage the optimum structure of the yoke in unit；

Fig. 9 is the structured flowchart of the controller of the grand piano according to embodiment；

Figure 10 is the functional block diagram of the grand piano according to embodiment；

Figure 11 shows the block diagram of the change example of Figure 10 functional structure；

Figure 12 A and Figure 12 B are according to the tune of the frequency characteristic to be set in the equalizer unit of grand piano of embodiment Whole curve map；

Figure 13 is the block diagram for the mechanism that frequency characteristic specified portions unit specifies the equalizer unit frequency characteristic to be set；

Figure 14 is the exciting unit diagrammatic cross-section for changing example 1 according to the present invention；

Figure 15 is the internal structure view for the upright piano for changing example 2 according to the present invention；

Figure 16 is the schematic diagram according to the arrangement form of exciting unit in the upright piano for changing example 2；

Figure 17 is the side view that the exciting unit for changing example 3 according to the present invention is in the state being installed on castanets；

Figure 18 is the schematic diagram of the arrangement form for the exciting unit for changing example 7 according to the present invention；

Figure 19 is the internal structure view for the upright piano for changing example 7 according to the present invention；

Figure 20 is the exciting unit profile for changing example 9 according to the present invention；

Figure 21 is the exciting unit profile for changing example 12 according to the present invention；

Figure 22 A and Figure 22 B are the exciting unit profiles for changing example 13 according to the present invention；

Figure 23 is the in-built schematic diagram of pianotron of the change example 16 according to the present invention；And

Figure 24 is the schematic diagram of the castanets according to the pianotron for changing example 16.

Specific embodiment

Unitary construction

Fig. 1 is the cross-sectional view of grand piano 1 according to embodiments of the present invention.As known grand piano, three Angle steel qin 1 has to arrange on front side of piano in the pedal 3 of keyboard and control musical performance, keyboard to be operated for performing artist or user Multiple keys 2.Grand piano 1 is additionally included in the controller 10 with guidance panel 13 of its front surface portion and is arranged on pleasure Touch panel 60 in a part for music stand.User inputs user by the operation to guidance panel 13 and touch panel 60 Instruct controller 10.

Grand piano 1 is configured to, and can selected according to the instruction of performing artist (user) from muli-sounds generation pattern Sound is produced under a kind of sound generation mode gone out.These sound generation modes include (1) common acoustic and produce pattern, (2) sound Sound evanescent mode, and (3) sound enhancement mode.

Common acoustic produce pattern (1) be it is a kind of be based only in response to by corresponding to by the hammerhead of operation key to string Impact and produce string vibration sound generation mode.Sound attenuating pattern (2), i.e., " especial sound produces pattern 1 ", is one The pattern planted the active vibration castanets sound for being based only on castanets generation and produce sound, the active vibration castanets sound is in sound Plate is in response to the operation of key, according to the drive signal for the audio volume control signal for being based on producing from source of sound (such as electronics source of sound) Produced during physical vibration from castanets, and the impact of string simultaneously is stopped device prevention.In other words, in sound attenuating pattern (2) in, retainer is allowed to prevent hammerhead from impacting string corresponding with the key operated.Therefore, the active vibration of generation is rung The sound of plate has the characteristics of feeling natural primary sound sound.

Sound enhancement mode (3), i.e., " especial sound produces pattern 2 ", is a kind of vibration based on string and active vibration The vibration of castanets produces the pattern of sound.In other words, in sound enhancement mode (3), retainer is not allowed to prevent hammerhead Impact string corresponding with the key operated.It should be noted that in sound enhancement mode (3), not only total sound of produced sound Amount can be enhanced, and can realize tone color layer effect (tone color layer effect), be based on because produce simultaneously Hammerhead has the first primary sound sound and tool of the intrinsic tone color of piano to (namely based on the sound of the vibration of string) of the impact of string There is the second primary sound sound (that is, the sound of active vibration castanets) of any additional tone color, any additional tone color is by forcing sound Plate vibrates to obtain according to the drive signal of the audio volume control with any tone color (including tone color similar with piano sound). Therefore, sound enhancement mode (3) also can as can obtain tone color layer effect performance pattern.

Sound generation mode may include other sound generation modes, such as cancellation mode (sound deadening mode).When selecting cancellation mode, in the case where being configured with sound evanescent mode identical, the electronic music sound produced from sound source Signal (audio volume control signal) supply earphone end and not as castanets drive signal.Therefore, player oneself can listen to and be based on The sound of electronic music voice signal (without musical sound is traveled into exterior space).

The sound generation mode that table 1 is set forth below

【Table 1】

Equally, grand piano 1 is configured to grasp under the performance pattern selected from multiple performance patterns by user Make.Performance pattern produces the common performance pattern of sound including the use of person's (performing artist) piano, and key is driven automatically The dynamic automatic Playing pattern to produce automatic Playing sound.To perform the present invention, grand piano 1 is configured to realize at least Any performance pattern.

【The structure of grand piano 1】

Fig. 2 is the view for schematically showing the internal structure of grand piano 1 according to an embodiment of the invention.In fig. 2, For the purpose of simplifying the description, the internal structure of one key 2 of correspondence is only depicted, and eliminates the internal structure of other keys 2 of correspondence.

Solenoid is set using below the rearward end (that is, the end of the user away from grand piano 1) of each key 2 Drive the key driver element 30 of key 2.Key driver element 30 drives helical according to the control signal provided from controller 10 Pipe.More specifically, key driver element 30 drives solenoid to raise plunger, when having pressed key 2 to reappear user Similar state, and reduction plunger, to reappear similar state when user has discharged key 2.That is, common play Difference between pattern and automatic Playing pattern is that key 2 is by the operation driving of user or by key driver element 30 drivings.

Hammerhead 4 is set with key 2 into corresponding relation.Therefore, once user presses any one in key 2, press Pressure is sent to corresponding hammerhead 4 by actuating mechanism (not shown) so that hammerhead 4 is moved, to impact corresponding string 5.System Sound device 8 according to key 2 pressing quantity and pedal 3 damper pedal volume under pressure away from or contact string 5；Hereinafter, " step on Plate 3 " will refer to damper pedal, unless otherwise indicated.When being in contact with string 5, damper 8 suppresses the vibration of string 5.

It is known in the art, generally in primary sound grand piano, the combination (or at least one string) of many strings and every One key is set in association.In the present invention, and the corresponding string 5 of a key 2 actually include one or more qin This combination of string.I.e., in the present invention, describe for convenience, " string 5 " is referred to each key relatively for simple use The combination of one or more string set.

In tut evanescent mode, retainer 40 prevents hammerhead 4 from impacting string 5.That is, when setting sound generation mode During for sound attenuating pattern, mallet handle and retainer 40 are collided, so as to prevent hammerhead 4 from impacting string 5.On the other hand, when sound is produced When raw pattern is set to common acoustic generation pattern or sound enhancement mode, retainer 40 moves to the position not collided with mallet handle Put.

Key sensor 22 is set to key 2 into corresponding relation and below corresponding key 2, and each qin Key sensor 22 is by the detection signal output acted corresponding to key 2 to controller 10.In this example, each key sensor 22 Detect the pressing quantity of corresponding key 2 and the detection signal output of pressing quantity (testing result) that detects will be represented to controller 10.Key sensor 22 is exportable to represent the detection signal that key 2 has already been through a specific pressing position, rather than will inspection The pressing quantity of the key 2 measured is used as detection signal output.Here, specific pressing position refers to any appropriate position, excellent Choosing be from the rest position of key 2 to final position in the range of multiple positions.That is, defeated from key sensor 22 The detection signal gone out can be any kind of signal, as long as its permission controller 10 identifies the action of corresponding key 2.

Mallet sensor 24 is set to hammerhead 4 into corresponding relation, and each hammer sensor 24 will represent correspondence hammerhead 4 Action detection signal output to controller 10.In this example, the detection of hammer sensor 24 hammerhead 4 is just in impact string 5 Movement velocity before, and the detection signal output of movement velocity (testing result) that detects will be represented to controller 10.Should Note, the detection signal, which is needed not be, represents the movement velocity of itself of hammerhead 4, and it can also represent the table that controller 10 is calculated Show the movement velocity of hammerhead 4, to be used as another form of detection signal.For example, detection signal can be a kind of represents in hammerhead 4 Motion process in mallet handle pass through the signal in two precalculated positions, or a kind of represent to pass through two positions from mallet handle The time point of one put passes through the signal of the time span at another time point in two positions to mallet handle.Also It is to say, the detection signal to be exported from hammer sensor 24 can be any kind of signal, as long as it can allow controller 10 to be known Do not go out the action of corresponding hammerhead 4.

Pedal sensor 23 is set to pedal 3 into corresponding relation, and each pedal sensor 23 will represent that correspondence is stepped on The detection signal output of the action of plate 3 is to controller 10.In this example, pedal sensor 23 detects the volume under pressure of pedal 3, and will Represent the detection signal output of volume under pressure (testing result of pedal 3) that detects to controller 10.Or, pedal sensor 23 The detection signal for representing that pedal 3 passes through a specific depressed position can be exported, to replace output to correspond under pedal 3 The detection signal of pressure amount.Here, " specific depressed position " be from the rest position of pedal 3 to final position in the range of it is any Suitable position, and specifically depressed position is preferentially set to the contact shape that can completely attach to damper 8 and string 5 each other The position that the contactless state that state and damper 8 and string 5 are not contacted each other is distinguished.It is furthermore preferred that multiple such specific Depressed position is set as also allowing to detect half pedal state.That is, the detection signal to be exported from pedal sensor 23 can To be any kind of signal, as long as it can allow controller 10 to identify the action of corresponding pedal 3.

As long as controller 10 is constructed in this way, sensed with from key sensor 22, pedal sensor 23 and hammerhead The detection signal that device 24 is exported, it can recognize that each single key (key number) 2, hammerhead 4 impact string 5 (i.e. by key Effective (key-on) event time) time point (string stroke time point), striking speed and damper 8 suppress string vibration The time point (vibration suppression time point) of (key failure (key-off) event time point), then key sensor 22, pedal are passed Sensor 23 and hammer sensor 24 each exportable detect signal, other forms key 2, pedals different from aforementioned forms 3 and hammerhead 4 action testing result.

As be well known in the art, the behind of castanets 7 of piano be provided with multiple stall bars (or support member) 75, and across Crown cut 6 between string 5 is fixed to the preceding surface of castanets 7.Hereinafter, crown cut 6 refers to " the first bar-like member ", and rib Wood 75 refers to " the second bar-like member ".In playing piano in normal way, the vibration of the string 5 impacted by hammerhead 4 passes through string Horse 6 propagates (or transmission) and arrives castanets 7.

In the present invention, exciting unit 50 is arranged on the correct position of castanets 7.Exciting unit 50 has what is be connected with castanets 7 Vibration component 51 and yoke holding unit (that is, main body) 52.Yoke holding unit (main body) 52 is by being connected to the support list of allotment dagger 9 Member 55 is supported.Under specific sound generation mode (i.e. tut evanescent mode or sound enhancement mode), from controller 10 The drive signal sent is supplied to exciting unit 50.Vibration component 51 responds the electronic audio frequency ripple represented by the drive signal provided Shape and vibrate, thus vibrate castanets 7.In this way, castanets 7 produce primary sound rattle.Crown cut 6 shakes also with castanets 7 Move and vibrate, therefore the vibration of castanets 7 propagates (or transmission) to string 5 by crown cut 6.In the embodiment shown in fig. 5, vibrate Component 51 includes the yoke 521,523 contained in yoke holding unit 52 and is arranged as being positioned in the magnetic circuit of the formation of toroidal magnet 522 Voice coil loudspeaker voice coil 512, and vibration component 51 vibrates according to the drive signal that voice coil loudspeaker voice coil 512 is inputted.

Fig. 3 is schematic diagram, it is shown that the arrangement of exciting unit 50 according to embodiments of the present invention.In this example, if Two exciting units 50H, 50L are put as exciting unit 50.If not needing especially to distinguish exciting unit 50H and exciting unit 50L, is stated using only exciting unit 50 is such.

In this example, exciting unit 50H, 50L are arranged on the rear surface being located between two stall bars 75 of castanets 7.It is right For two crown cuts 6 (i.e. long crown cut 6H and short crown cut 6L), exciting unit 50H is arranged in the long crown cut 6H of correspondence position, excitation Unit 50L is arranged in the short crown cut 6L of correspondence position.That is, castanets 7 are sandwiched between exciting unit 50 and crown cut 6.

It is noted that the number for the exciting unit 50 that be arranged on castanets 7 is not limited to two, and it may be greater than Two or only one of which.If only setting an exciting unit 50, preferably, exciting unit 50 is arranged on the long crown cut 6H of correspondence Position.

Long crown cut 6H is the crown cut for supporting one group of predetermined string 5 corresponding with predetermined higher pitch scope, and Short crown cut 6L is for supporting one group of predetermined string 5 corresponding with making a reservation for relatively low pitch range.Hereinafter, if not special Need to distinguish crown cut 6H and crown cut 6L, then stated using only crown cut 6 is such.As described above, the support being connected with allotment dagger 9 Unit 55 supports exciting unit 50.

【The construction of exciting unit 50】

Fig. 4 is schematic diagram, and which show the outward appearance of exciting unit 50 according to embodiments of the present invention.In order to be easier to understand Ground represents the agent structure of yoke holding unit 52, and this schematic diagram shows the inside of shell 524 and eliminates yoke and keep single The displaying of the shell 524 of member 52 (referring to Fig. 5).Vibration component 51 has cylindrical coupling section 511 and voice coil loudspeaker voice coil 512, the connection Part is closing with the top surface that castanets 7 are connected.Connection member 511 is as the lightweight material (resin as polyimides Or metal as aluminium) be made, the lid that resin or the like is made is arranged on its top surface.Yoke holding unit 52 have yoke 521, 523, between which accompanies magnet 522.Yoke 521,523 is made up and more heavy than connection member 511 of soft magnetic materials (such as soft iron) It is many.Vibration component 51 and yoke support part 52 are separated from each other by interval or air-gap.That is, yoke supporter 52 and sound Circle 512 is through air-gap magnetic coupling.

Fig. 5 be from horizontal direction in Fig. 4 for seeing exciting unit 50 profile, along in by connection member 511 The vertical plane interception of the heart.Fig. 5 shows shell 524, and its displaying is equally omitted in Fig. 4.In Figure 5, castanets 7 and crown cut 6 Position be represented by dashed line, to show the position relationship between exciting unit 50, castanets 7 and crown cut 6.Vibration component 51 includes connecting Relay part 511 and the voice coil loudspeaker voice coil 512 wound around connection member 511.In the whole magnetic circuit formed by yoke 521,523 and magnet 522 (being represented with the dotted line with arrow), voice coil loudspeaker voice coil 512 is movably disposed at the magnetic circuit in the space by being formed between yoke 521 and yoke 523 In part.The drive signal for being supplied to exciting unit 50 is input to voice coil loudspeaker voice coil 512.Voice coil loudspeaker voice coil 512 connects from the magnetic circuit formed as described above Magnetic force is received, for producing the vertical direction for allowing connection member 511 in Fig. 5 according to the waveform that the drive signal by inputting is represented The driving force of vibration.Because the supporting yoke holding unit 52 of support unit 55, the position of yoke holding unit 52 is fixed, sound Most of driving force that circle 512 is produced is used as the motive force for allowing connection member 511 to vibrate.

The top surface and castanets 7 of connection member 511 are each other with binding agent or two-sided tape bonding (not shown), so connecting portion Part 511 is fixedly secured on castanets 7.Connection between connection member 511 and the top surface of connection member 511 is not limited to by viscous Tie agent to bond, and screw or the like connection can be used.Therefore, when connection member 511 is moved upwards, castanets 7 are pushed up, And when connection member 511 is moved downward, connection member 511 pulls castanets 7 downwards, and connection member 511 does not leave sound Plate 7.As noted previously, as the connection between connection member 511 and castanets 7, castanets 7 can in the positive and negative direction of drive waveforms Precise motion.So, castanets 7 can produce with expect tone waveform characteristic in strict conformity with vibration.Connection member 511 Vibration not only allow castanets 7 to vibrate, and travel to crown cut 6 by castanets 7, propagate further into string 5.

Shell 524 accommodates yoke 521,523 and magnet 522.The support housing 524 of support unit 55.So, by yoke 521,523 Yoke holding unit 52, magnet 522 and the shell 524 of composition set and passed through away from vibration component 51 through interval or air-gap Support unit 55 is supported, to cause yoke holding unit 52 and castanets 7 not to contact.In this example, as shown in figure 5, support is single Member 55 is from the bottom side supporting yoke holding unit 52 of shell 524.Because vibration component 51 (connection member 511) is through interval or air-gap Separate, supported so result is vibration component 51 when being connected with castanets 7 by castanets 7 with yoke holding unit 52.

It should be noted that vibration component 51 and yoke holding unit 52 by interval each other separation it is meant that showing In construction, vibration component 51 and yoke holding unit 52 are not contacted with each other.Alternatively, the partial structurtes of vibration component 51 are guided into (distribution for for example guiding voice coil loudspeaker voice coil 512 into) can be contacted with yoke holding unit 52.Now, it may be desirable to do not bear a heavy burden and tied by the part Structure is applied to vibration component 51 from yoke holding unit 52.

In this way, support unit 55 is supported on the yoke holding unit (main body) 52 in exciting unit 50, except vibration structure Outside part 51, less or without exciting unit 50 heavy burden is applied on castanets 7.Support unit for supporting yoke holding unit 52 55 structure can be arbitrary structures, as long as meet does not have other heavy burdens to be applied to castanets 7 in addition to the heavy burden of vibration component 51 It is upper.

As described above, being compared with the material of yoke holding unit 52, connection member 511 is made up of light material (such as resin). Compared with yoke holding unit (main body) 52, including the whole vibration component 51 of connection member 511 and voice coil loudspeaker voice coil 512 is very light by weight Structure formed.Because the heavy burden of yoke holding unit 52 is applied on allotment dagger 9 by support unit 55, almost do not have The heavy burden of exciting unit 50 is applied to castanets 7.Although the heavy burden of vibration component 51 acts on castanets 7, this bears a heavy burden very It is small, the influence of its vibration characteristics to castanets is minimized.

【The construction of voice coil loudspeaker voice coil 512】

Fig. 6 is schematic diagram, it is shown that the structure of voice coil loudspeaker voice coil 512 according to embodiments of the present invention.Fig. 6, which is shown, works as vibration component 51 its positions when not vibrating.Hereinafter, its position call normal place when vibration unit 51 not vibrated.Voice coil loudspeaker voice coil The length length of voice coil loudspeaker voice coil 512 (hereafter only referred to as) of 512 vertically (direction of vibration of vibration component 51) is magnetic circuit space 525 length (hereinafter referred to as magnetic path width mw) and upper and lower vibration focal length cw (each of which correspondence vertically Any end more high or low than magnetic path width mw) sum.That is, the length of voice coil loudspeaker voice coil 512 is to vibrate focal length cw two times and magnetic Degree of having a lot of social connections mw sums.Although showing that magnetic path width mw length is set as, reality equal with the thickness of yoke 521 in figure 6 On border, there is the extension in magnetic field.It therefore, it can consideration to include the extension in magnetic circuit space 525, and magnetic circuit broadband mw is true It is set to the value bigger than the thickness of the yoke 521 shown in Fig. 6.

Fig. 7 A to Fig. 7 C are the vibrations of relevant with three kinds of various sizes of voice coil loudspeaker voice coils 512 voice coil loudspeaker voice coil 512 in the embodiment of the present invention The profile of state.In Fig. 7 A to Fig. 7 C, reference quantity sw is represented under conditions of connection member 511 is connected with castanets 7, when most Offset (the i.e. maximum offset of normal place away from vibration component 51 when significantly drive signal is input to voice coil loudspeaker voice coil 512 sw).In Fig. 7 A to Fig. 7 C, voice coil loudspeaker voice coil 512 is different from each other relative to magnetic path width mw length dimension.That is, Fig. 7 A are represented Vibrate the focal length cw situations equal with maximum offset sw.Fig. 7 B represent that vibration focal length cw is less than maximum offset sw Situation.Fig. 7 C represent to vibrate the situation that focal length cw is more than maximum offset sw.In Fig. 7 A to Fig. 7 C, the chart on the left side Show state of the vibration component 51 in normal place, middle figure represents that vibration component 51 has moved maximum offset sw shape upwards State, the figure on the right represents that vibration component 51 has moved downward maximum offset sw state.

As shown in Figure 7 A, wherein cw=sw, when the skew of vibration component 51 is upward maximum, the bottom bm of voice coil loudspeaker voice coil 512 Bottom positioned at magnetic circuit space 525.When the skew of vibration component 51 is downward maximum, the top tp of voice coil loudspeaker voice coil 512 is located at magnetic circuit The top in space 525.In this case, the part for having the length equal to magnetic path width mw in voice coil loudspeaker voice coil 512 is always located in magnetic In road space 525.Therefore, regardless of offset during encouraging, vibration component 51 can obtain stable driving force.

As shown in Figure 7 B, wherein cw ＜ sw, when the skew of vibration component 51 is upward maximum, the bottom bm of voice coil loudspeaker voice coil 512 In magnetic circuit space 525.When the skew of vibration component 51 is downward maximum, the top tp of voice coil loudspeaker voice coil is located at magnetic circuit space 525 It is interior.In this case, when the offset increase of vibration unit 51, the length being located in magnetic circuit space 525 of voice coil loudspeaker voice coil 512 is small In magnetic path width mw.It is thus impossible to sufficiently obtain the driving force that obtained from drive signal.But, when no input is big Drive signal (it can cause vibration component 51 to reach maximum offset) when, when vibration component 51 can be such as cw=sw Obtain stable driving force.

On the other hand, as shown in Fig. 7 B when voice coil loudspeaker voice coil 512 length reduce when, the number of turns of per unit length necessarily changes Become.Because the winding quantity of coil is reduced and inductance reduction, the effect brought can also obtain excellent in high-frequency range Response more.

As seen in figure 7 c, wherein cw ＞ sw, when the skew of vibration component 51 is also upward maximum, the bottom of voice coil loudspeaker voice coil 512 Outside magnetic circuit space 525.When the skew of vibration component 51 is also downward maximum, the top tp of voice coil loudspeaker voice coil 512 is located at magnetic circuit Outside space 525.In this case, during similar cw=sw, have the part for the length for being equal to magnetic path width mw total in voice coil loudspeaker voice coil 512 It is to be located in magnetic circuit space 525.Therefore, the offset regardless of vibration component during encouraging 51, vibration component 51 can Obtain stable driving force.

On the other hand, in voice coil loudspeaker voice coil 512, the part outside magnetic circuit space 525 is not contributed to driving force.Moreover, As seen in figure 7 c, if the length increase of voice coil loudspeaker voice coil 512, unless the number of turns of unit length changes, coil windings number will Increase, thus causes inductance to increase.As a result, it is possible to which the frequency band for obtaining superior response is limited in low-frequency band.

As described above, in the case of cw ＞ sw, the situation ratio with cw=sw, high frequency band response deteriorates and without favourable Factor.Therefore, embodiments in accordance with the present invention, it is determined that vibration focal length cw is equal to or less than maximum offset sw.Namely Say, the length of voice coil loudspeaker voice coil 512 is determined to be equivalent to or two times less than maximum offset sw and magnetic path width mw sums.To make to shake Dynamic focal length cw is less than maximum offset sw, it is considered to vibration component 51 can be normally reached when castanets 7 vibrate amplitude and drive The frequency band that dynamic signal is included makes appropriate design.

【The structure of yoke 521,523】

Fig. 8 A to Fig. 8 C are the bars of the top surface (hereinafter referred to as plate top surface), the top surface of voice coil loudspeaker voice coil 512 and the yoke 523 that represent yoke 521 (pole) profile of relation between top surface (hereinafter referred to as bar top surface).Fig. 8 A are shown, when vibration unit 51 is offset up During maximum offset sw, the height of bar top surface is set as with the apical position of voice coil loudspeaker voice coil 512 identical.Fig. 8 B are shown, work as vibration When unit 51 is located at normal place, the height of bar top surface is set as identical with the apical position of voice coil loudspeaker voice coil 512.Fig. 8 C show bar top The height in face is set as and plate top surface position identical situation.It should be noted that in any situation in Fig. 8 A to Fig. 8 C, The length of voice coil loudspeaker voice coil 512 is considered as vibrating focal length cw two times and the wide mw sums of magnetic circuit.Fig. 8 A to Fig. 8 C each In, the figure on the left side represents state of the vibration component 51 in normal place, and middle figure represents that vibration component 51 has been moved up most Big offset sw state, the figure on the right represents that vibration component 51 is moved downwardly maximum offset sw state.

In the case of shown in Fig. 8 A, when the skew of vibration unit 51 is upward maximum, voice coil loudspeaker voice coil top is usually not more than The magnetic circuit formed between plate top surface and bar top surface.Therefore, if bar top surface is set to such as Fig. 8 A state, when big drive signal is defeated When entering voice coil loudspeaker voice coil 512, superior response can be obtained.

In the fig. 8b, when vibration unit 51 is in normal place, the top of voice coil loudspeaker voice coil 512 is usually not more than plate top surface and bar top The magnetic circuit formed between face.Although in the state shown in Fig. 8 A, when vibration unit 51 is in normal place, existing and bypassing (bypass) magnetic flux that voice coil loudspeaker voice coil is spilt upwards, in the fig. 8b, the magnetic flux bypassed without as.Therefore, when bar top surface When position is set to state as shown in Figure 8 B, superior response can be obtained (when starting to produce sound) when vibrating beginning Property.

In the case of shown in Fig. 8 C, even if when the skew of vibration unit 51 is downward maximum, the top of voice coil loudspeaker voice coil 512 It is usually not more than the magnetic circuit formed between plate top surface and bar top surface.Although in the case where Fig. 8 B are shown, when vibration unit 51 drops It is low to below normal place when, generation bypasses the magnetic flux that voice coil loudspeaker voice coil 512 is spilt upwards, and Fig. 8 C situation is bypassed without such Magnetic flux.Therefore, when the position of bar top surface is set to the state shown in Fig. 8 C, no matter how the size of amplitude can all obtain surely Fixed response.

If the height of bar top surface is higher than the height shown in Fig. 8 A, no matter the position of vibration unit 51, it can produce Life is always to bypass the magnetic flux that voice coil loudspeaker voice coil 512 is spilt upwards.Therefore, without favorable factor.Further, if the height ratio of bar top surface Height shown in Fig. 8 C is low, then magnetic flux can downward bias.As a result, the driving force produced in vibration unit 51 is vertically not Symmetrically, therefore also without favorable factor.Therefore, it is desired to, inclined maximum offset sw and it is higher than upwards in vibration unit 51 In the state of the height of plate top surface, the height of bar top surface will be less than the apical position of voice coil loudspeaker voice coil 512.

The previous constructions of yoke holding unit (i.e. main body) 52 are summarized as follows.Yoke holding unit (main body) 52 includes soft by annular Magnetic material forms and is located at the yoke (the first yoke) 521 and the yoke (second formed by soft magnetic material of the upper surface of magnet 522 Yoke) 523.Herein, it should be noted that the upside of yoke holding unit (main body) 52 or magnet 522 refers to one close to castanets 7 Side, is not always the case even if yoke holding unit (main body) 52 or magnet 522 are arranged in any direction.Second yoke 523 includes dish type base Seat unit and bar (cylindrical bar), the base unit are configured to receive the following table of magnet 522 in the upper surface of base unit Face, the bar is upwardly extended from the core of base unit, and its mode is so that bar is contained in the internal void of magnet 522 Point, magnetic circuit space 525 is formed between the inner surface of the first yoke 521 and the outer surface of bar, longitudinal direction of the vibration component 51 along bar Direction vibrates, and determines the position of the upper end of bar along the longitudinal direction, to move up peak excursion in vibration component 51 In the case of measuring sw, the position is equal to or higher than the upper surface location of the first yoke 521 and equal to or less than the position on voice coil loudspeaker voice coil top Put.

【The structure of controller 10】

Fig. 9 is the structured flowchart of controller 10 in present example of the present invention.Controller 10 includes control unit 11, storage Unit 12, guidance panel 13, communication unit 14, signal generation unit 15 and interface 16, these parts are interconnected by bus.

Control unit 11 includes arithmetic element (such as central processing unit (CPU)), and memory cell 12 includes read-only storage (ROM), random access storage device (RAM) etc..Control unit 11 is controlled based on the control program in memory cell 12 is stored in The all parts of controller 10 and all parts being connected with interface 16.In this example, control unit 11 is by performing control journey Sequence makes controller 10 and some parts being connected with controller 10 operate to keyboard instrument.

Memory cell 12 stores the setting of the various settings of expression for being used during control program is performed wherein Information.Configuration information is such information, and it is based on exporting from key sensor 22, pedal sensor 23 and hammer sensor 24 Detection signal determine drive signal (audio volume control signal) content to be produced by signal generation unit 15.Configuration information bag Include the information of the expression sound generation mode of user's setting and play the information of pattern.

Among other things, guidance panel 13 can receive the behaviour of user also including the use of the exercisable operation button of person Make.Once the operation of user is received by any one operation button on guidance panel 13, the operation with user is corresponding Operation signal be output to control unit 11.The touch panel 60 being connected with interface 16 include display screen, such as liquid crystal display, Touch sensor is set in the display portion of display, the operation for receiving user.Connect in control unit 11 by above-mentioned Under the control of mouth 16, various information are shown on a display screen, for example, are stored in the setting stored in memory cell 12 for changing The setting of the content of information changes screen, the setting screen for setting any one pattern in various patterns etc., and various information are (such as Music score).Touch panel 60 provides the operator control panel of the user interface for receiving user's input.Once connect by touch sensor Receive the operation of user, the corresponding operation signal of operation with user is output to control unit 11 by interface 16.Pass through bag Include the user's that the operation equipment and the user interface associated with operation equipment of guidance panel 13, touch panel 60 etc. are received Operate to input instruction of the user to controller 10.

Communication unit 14 is to perform the interface communicated with other equipment in wiredly and/or wirelessly mode.The interface can be with magnetic Disk drive is connected, and the disc driver reads the various data recorded in storage medium, and storage medium is, for example, DVD (numerals Multifunctional optical disk) or CD (CD).Include using in automatic Playing by the data sample of the input controller 10 of communication unit 14 Music data.

Signal generation unit 15 includes sound source 151, and sound source is configured for output audio volume control signal, is configured for adjusting The equalizer unit 152 of the frequency characteristic of whole audio volume control signal, the amplifying unit 153 for being configured to amplify audio volume control signal (referring to Figure 10).Frequency characteristic is adjusted and audio volume control signal is amplified, the output audio wave of signal generation unit 15 Shape signal, to be used as drive signal.

Interface 16 is the interface for interconnecting controller 10 and each external component.The example bag for the part being connected with interface 16 Include key sensor 22, pedal sensor 23, hammer sensor 24, key driver element 30, retainer 40, the and of exciting unit 50 Touch panel 60.Interface 16 provides defeated from key sensor 22, pedal sensor 23 and hammer sensor 24 to control unit 11 The detection signal gone out and the operation signal exported from touch panel 60.Further, interface 16 is to key driver element 30 and stop Device 40 provides the control signal exported from control unit 11, and to exciting unit 50 by exporting from signal production unit 15 Audio volume control signal.

Primary sound grand piano 1 is described below, its function performs control program to realize by control unit 11.

【The functional structure of grand piano 1】

Figure 10 is the functional block diagram of grand piano 1 according to embodiments of the present invention.In Fig. 10, when operation key 2 When, the impact string 5 of hammerhead 4 so that string 5 vibrates.The vibration travels to castanets 7 by crown cut 6.When key 2 or pedal 3 are operated When, damper 8 is actuated.Due to the action of damper 8, the state for preventing that string 5 from vibrating converted.

Setting unit 110 is realized, the structure with following representation function by the combination of touch panel 60 and control unit 11 Make.First, touch panel 60 receives the operation of user, and pattern is produced for setting desired audio.The response of control unit 11 makes The performance pattern and sound generation mode of user's setting change configuration information, and in response to these patterns, will represent selected The control signal of sound generation mode be output to and playing information generation unit 120 and prevent control unit 130.

Touch panel 60 receives the operation of user, the various control parameters for setting signal generation unit 15.It is various Control parameter includes：The parameter of tone color, equalizer unit are determined to the sound that the audio volume control signal exported from sound source 151 is represented The amplification factor of the regularization condition of frequency characteristic and amplifying unit 153 in 152.

Every kind of control parameter can be separately provided by user, or alternatively, multigroup control parameter can be stored in advance in In memory cell 12, desired one group can be selected from the parameter group of storage so as to user and is thus set and selected ginseng The corresponding control parameter of array.Each control parameter that control unit 11 is set in response to user changes set information, And the drive signal produced according to control parameter come control signal generation unit 15.Or, equalizer unit 152 and amplifying unit 153 are configurable to, and only using the control parameter pre-set, and prevent change of the control unit 11 to parameter.

Playing information generation unit 120 is by control unit 11, key sensor 22, pedal sensor 23 and hammer sensor 24 combinations realize that it is configured to function as described below.Key sensor 22, pedal sensor 23 and hammer sensor 24 Detect the action of key 2, pedal 3 and hammerhead 4.Detection signal output based on synthesis, control unit 11 specifies hammerhead 4 to impact qin The string stroke time point (i.e. key validity event time point) of string 5, specified identification operation qin corresponding with the string 5 impacted The key number of key 2, vibration suppression time point (the key failure thing for specifying striking speed and the suppression string 5 of specified damper 8 to vibrate Part time point), the information (playing information) used as sound source 151.In this example, action of the control unit 11 with reference to key 2 Specify the key number of string stroke time point and the key 2 operated.Then, striking speed is specified in the action with reference to hammerhead 4, and And specify vibration suppression time point with reference to the action of key 2 and pedal 3.It should be noted that string stroke time point can be according to The action of hammerhead 4 is specified, and striking speed can specify according to the action of key 2.Playing information can be connect by Instrument Digital Mouthful (MIDI) Type Control parameter is come the information formulated.

At the key validity event time point specified, control unit 11 will represent key number, speed and the effective thing of key The playing information of part is output to sound source 151.At key failure event time point, control unit 11 will represent that key number and key lose The playing information of effect event is output to sound source 151.When the sound generation mode that user sets is sound attenuating pattern or sound During enhancement mode (i.e. especial sound produce pattern), control unit 11 realizes above-mentioned functions, and in this example, when for common acoustic During generation pattern, control unit 11 does not export playing information to sound source 151.It should be noted that when selection common acoustic is produced During pattern, it is only necessary to prevent signal generation unit 15 from producing and export any drive signal.Therefore, drilled even in generation and output In the configuration for playing information, control unit 11 also only needs control signal generation unit 15, not produce and export any drive signal.

Control unit 130 is prevented by control unit 11 to realize, thus control unit 11 be configured to it is executable following this Prevent control function (that is, the function of preventing control unit 130).When the sound generation mode that user selects is sound attenuating mould During formula, control unit 11 allows retainer 40 to move to the position for preventing hammerhead 4 from impacting string 5 (i.e., it is allowed to prevent or prevent hammerhead 4 impact strings 5), when selecting common acoustic to produce pattern or sound enhancement mode, control unit 11 allows retainer 40 to move To the position (that is, not allowing to prevent or prevent hammerhead 4 from from impacting string 5) for not preventing hammerhead 4 from impacting string 5.

Sound source 151 produces audio based on the playing information produced from playing information generation unit 120 (control unit 11) Waveform signal.For example, sound source 151 produces the audio volume control signal of the volume of pitch and corresponding speed with correspondence key number. Audio volume control signal is adjusted and is exaggerated unit 153 amplifying according to the frequency characteristic of equalizer unit 152, after then amplifying Signal is supplied to exciting unit 50 as drive signal.As described above, exciting unit 50 responds the drive signal provided and occurred Vibration, to allow castanets 7 to vibrate.In addition, the vibration of castanets 7 is multicast to crown cut 6, and string 5 is then passed to by crown cut 6.So, lead to Cross and produce the audio volume control signal with pitch (frequency) corresponding with the key number by operation key for performance, castanets 7 Rattle (that is, the sound of active vibration castanets, it vibrates according to the audio volume control signal (the drive signal)) tool of generation Have with by the corresponding pitch of the pitch of operation key.In addition, the executable speed control to the rattle from castanets 7 (rings The volume control that should be touched in key).However, the frequency of audio volume control signal (drive signal) can be changed by various modes, And it is not limited to exemplified son.Mixed for example, can each have the audio volume control signal of different pitches to produce by mixing Signal (such as polyphonic ring tone) is closed, castanets 7 are then vibrated as drive signal with this signal mixed.

Figure 11 shows the modification of the embodiment shown in Figure 10, which uses two exciting units 50H, 50L.Remove It is provided with two exciting units 50H, 50L and adds outside frequency characteristic designating unit 155, as Figure 11 is with Figure 10.

In the example of fig. 11, by two different systems, the output of sound source 151 is as being input to exciting unit 50H's The audio volume control signal (hereinafter referred to as audio volume control signal H) of drive signal (hereinafter referred to as drive signal H), and export as defeated Enter to exciting unit 50L drive signal (hereinafter referred to as drive signal L) audio volume control signal (hereinafter referred to as audio volume control believe Number L).

Audio volume control signal H and audio volume control signal L can have identical or different from each other signal.Such as audio volume control Signal H and audio volume control signal L may belong to frequency band different from each other.For example, audio volume control signal H frequency band can be higher than sound Frequency waveform signal L frequency band.In addition, each (such as stereosonic left and right acoustic channels) in multiple sound channels can distribute to audio Any one in waveform signal H, L.

In the example of fig. 11, equalizer unit 152 adjusts audio volume control signal H and audio volume control signal L frequency respectively Rate characteristic and output result.The frequency characteristic regularization condition relevant with audio volume control signal H is by frequency characteristic designating unit 155 According to vibration component 51 of the castanets 7 in exciting unit 50H is included in and the link position (hereinafter referred to as link position H) of castanets 7 On vibration characteristics and specify.Further, the frequency characteristic regularization condition relevant with audio volume control signal L is specified by frequency characteristic Unit 155 (hereinafter referred to as connects according to the link position of vibration component 51 of the castanets 7 in exciting unit 50L is included in and castanets 7 Meet position L) on vibration characteristics and specify.The example of the regularization condition of frequency characteristic is described below with reference to Figure 12 A and Figure 12 B Son.

Figure 12 A and Figure 12 B are the curve maps of the frequency characteristic regularization condition of equalizer unit 152.Figure 12 A show with Frequency characteristic (hereinafter referred to as frequency characteristic H) regularization condition relevant audio volume control signal H in weighing apparatus unit 152, and scheme 12B shows that the frequency characteristic (hereinafter referred to as frequency characteristic L) relevant with the audio volume control signal L in equalizer unit 152 is adjusted Shelf-regulating Conditions.

With opposite with the vibration characteristics at the link position of castanets 7 in exciting unit 50H vibration component 51 with castanets 7 Relation determines frequency characteristic H, and its mode is, in the case where suppressing the vibration characteristics of castanets 7, to suppress and sympathetic response frequency band respective frequencies characteristic H Frequency band level, thus to prevent the wave volume of active vibration castanets from increasing on frequency band corresponding with sympathetic response frequency band, but It is and level on trough frequency band (dip frequency band) corresponding frequency characteristic H of the vibration characteristics of castanets 7 frequency band It is enhanced, thus to prevent the wave volume of active vibration castanets from being reduced on frequency band corresponding with trough frequency band.Figure 12 A's In example, the frequency band of trough D1, D2 in frequency characteristic H correspond to sympathetic response of the castanets 7 in the vibration characteristics of link position The frequency band of crest.Moreover, the frequency band of crest P1 in frequency characteristic H corresponds to vibration characteristics of the castanets 7 in link position The frequency band of trough.It should be noted that frequency characteristic H and castanets 7 are not required with the vibration characteristics at the link position of vibration component 51 It is in inverse relationship completely.For example, can be not present in Figure 12 A frequency characteristic H any in such as trough D1, D2 and crest P1 One.

Further, in the example frequency characteristic H shown in Figure 12 A, in order to overcome the influence due to the inductance of voice coil loudspeaker voice coil 512 to lead The shortcoming that the high frequency characteristics that the exciting unit 50 of cause is encouraged declines, defines the increased increasing of gain in frequency characteristic H high frequency band Benefit enhancing region S1.It should be noted that such gain suppression region S1 can be also omitted.

In this way, audio volume control signal H has frequency characteristic H, wherein in the sympathetic response crest pair with the vibration characteristics of castanets 7 Amplification level component at the frequency band answered is suppressed due to trough D1, D2 presence, in the trough pair with the vibration characteristics of castanets 7 Amplification level component at the frequency band answered is enhanced due to crest P1 presence, to prevent volume from reducing, and at high frequency band Amplification level component is enhanced, so that the influence of the inductance of voice coil loudspeaker voice coil 512 is inhibited.The amplification audio volume control letter of amplifying unit 153 Number H, signal after amplification is supplied to exciting unit 50H as drive signal H.As a result, drive signal is supplied to exciting unit 50H H, the drive signal is used as such a signal：It has to suppress sympathetic response crest and trough of the castanets 7 at link position H The frequency characteristic that the mode of influence is determined.Further, if setting gain suppression region S1 in frequency characteristic H, it can compensate The reduction of amplification level component in the high frequency band caused due to the influence of the inductance of voice coil loudspeaker voice coil 512.

On the other hand, in a similar manner as described above, frequency characteristic L is with the vibration with castanets 7 in exciting unit 50L Vibration characteristics at the link position of component 51 and castanets 7 is determined in opposite relation.That is, with the vibration characteristics of castanets 7 Level at the corresponding frequency characteristic L of sympathetic response frequency band frequency band is suppressed, thus to prevent active vibration castanets wave volume from existing Increase at frequency band corresponding with sympathetic response frequency band, but frequency characteristic L's corresponding with the trough frequency band of the vibration characteristics of castanets 7 Level at frequency band is enhanced, thus to prevent the volume of active vibration castanets sound from being dropped at frequency band corresponding with trough frequency band It is low.In this example embodiment, the frequency band of the trough D3 in frequency characteristic L corresponds to the vibration characteristics at link position of castanets 7 and is total to The frequency band of ring crest.Moreover, the frequency band of crest P2, P3 in frequency characteristic L correspond to vibration spy of the castanets 7 in link position The frequency band of trough in property.It is noted that frequency characteristic L and vibration characteristics of the castanets 7 at the link position of vibration component 51 are not It is that must be determined with antipodal relation.For example, any one in such as trough D3 and crest P2, P3 can be not present in In Figure 12 B frequency characteristic L.

As described above, in example frequency characteristic L as shown in Figure 12 B, in order to overcome due to voice coil loudspeaker voice coil 512 In the shortcoming that the high frequency characteristics that exciting unit 50 is encouraged caused by the influence of inductance declines, the high frequency band for defining frequency characteristic L The increased gain suppression region S2 of gain.Gain suppression region S2 can be also omitted.

In this way, audio volume control signal L has frequency characteristic L, wherein in the sympathetic response crest pair with the vibration characteristics of castanets 7 Amplification level component at the frequency band answered is suppressed due to trough D3 presence, corresponding with the trough of the vibration characteristics of castanets 7 Frequency band at amplification level component be enhanced due to crest P2, P3 presence, to prevent at the reduction of volume, and high frequency band Amplification level component be enhanced so that the influence of the inductance of voice coil loudspeaker voice coil 512 is inhibited.Amplifying unit 153 amplifies audio volume control Signal L, signal after amplification is supplied to exciting unit 50L as drive signal L.As a result, drive signal L is fed into excitation list First 50L, drive signal L is used as such a signal：It has with suppress sympathetic response crest of the castanets 7 link position L at The frequency characteristic that the mode of the influence of trough is determined.Further, can if setting gain suppression region S2 in frequency characteristic L The reduction of amplification level component in high frequency band is caused with the influence compensated due to the inductance of voice coil loudspeaker voice coil 512.

In fig. 11, amplifying unit 153 can use identical amplification factor or different amplification factors to amplify sound Frequency waveform signal H, L each.Exciting unit 50H, 50L vibrate according to drive signal H, L for providing respectively it so that ring Plate 7 vibrates.The Vibration propagation of castanets 7 passes to string 5 to crown cut 6, and by crown cut 6.

The assigned frequency characteristic H of frequency characteristic designating unit 155 and frequency characteristic L, equalizer unit 152 is according to drive signal H and drive signal L are adjusted to these frequency characteristics.Figure 13 show frequency characteristic designating unit 155 to frequency characteristic H and The figure for the mechanism that frequency characteristic L is specified.

For example, before grand piano 1 is shipped as single product, being responsible for the same triangle of librarian use of adjustment product Touch panel 60 on piano 1 makes the setting operation for indicating to carry out the specific processing relevant with frequency characteristic, and signal produces single Pulse signal is output to exciting unit 50H by member 15.Exciting unit 50H voice coil loudspeaker voice coil 512 is produced from signal The pulse signal that unit 15 is inputted is driven strongly within the extremely short time so that castanets 7 are vibrated by connection member 511. After castanets 7 are energized, the vibration of castanets 7 is impacted once just as the position in exciting unit 50H by weight.

When castanets 7 vibrate, voice coil loudspeaker voice coil 512 vibrates also responsive to the vibration of castanets 7.Formed when being arranged in yoke holding unit 52 Magnetic circuit in voice coil loudspeaker voice coil 512 when vibrating, produce electromotive force between the two ends of voice coil loudspeaker voice coil 512.In order to measure the electricity of electromotive force generation Voltmeter 160 is connected between pressure value, the two ends of voice coil loudspeaker voice coil 512.512 liang of the voice coil loudspeaker voice coil that voltmeter 160 produces the vibration because of castanets 7 Magnitude of voltage between end is output to frequency characteristic designating unit 155.

Frequency characteristic designating unit 155 records the magnitude of voltage inputted in succession from voltmeter 160, then by using known Method (such as Fourier transformation) specifies the frequency characteristic of waveform (correspondence castanets 7 vibrate waveform), and the frequency characteristic is by being remembered The magnitude of voltage of record changes with time expression.This frequency characteristic specified represents the position that castanets 7 are connected in exciting unit 50H Put the vibration characteristics at place (link position H).In order to which this assigned frequency characteristic at the link position H to castanets 7 is responded, Frequency characteristic designating unit 155 specifies (or determination) frequency characteristic H to be output to excitation list for adjusting from equalizer unit 152 First 50H drive signal, its mode is the amplitude for increasing frequency band frequency components corresponding with trough, and is suppressed corresponding with crest Frequency band frequency components amplitude.

Then, pulse signal is output to exciting unit 50L by signal output unit 15.Afterwards, with Above-mentioned exciting unit 50H identical processing procedures to handle exciting unit 50L applications.Therefore, frequency characteristic designating unit 155 (or determination) frequency characteristic L is specified, exciting unit 50L drive signal is output to for adjustment equalizer unit 152.Specify Frequency characteristic H, L set in equalizer unit 152.

【Exemplary operation situation】

Next description uses the exemplary operation situation of the grand piano 1 of present example.First, user's operation is touched Panel 60 is touched performance pattern is set into common performance pattern and sound generation mode is set into sound attenuating pattern.At this Under the conditions of kind, when user operates key 2 to carry out musical performance, impact of the hammerhead 4 to string 5 is prevented from, and castanets 7 pass through Exciting unit 50 and vibrated so that the sound of active vibration castanets is sent from castanets 7.Further, crown cut 6 is via castanets 7 vibrations, from without being prevented other strings 5 of vibration also to vibrate by damper 8, to produce the sound of similar primary sound piano.Cause The impact of string 5 is prevented from for hammerhead 4, so not because of the sound of the impact generation of string 5.It therefore, it can produce because of castanets 7 The sound for vibrating and sending, and by adjusting the Oscillation Amplitude of exciting unit 50 with the sound smaller than impact string generation sound Amount (or bigger volume) produces the acoustic efficiency caused due to string sympathetic response of similar primary sound piano.Further, because sound The length of circle 512 is defined as than two times of maximum offset sw and magnetic path width mw sums are small, so effective when ensureing to be used for Ground allow castanets 7 vibrate driving force while, the response of high-frequency region is improved.

As described above, exciting unit 50H encourages castanets 7 using drive signal H, drive signal H, which has, to be set to suppress to ring The frequency characteristic that plate 7 influences in link position H sympathetic response crest and trough.Moreover, exciting unit 50L is allowed using drive signal L Castanets 7 are vibrated, and drive signal L, which has, to be set to suppress the frequency spy that castanets 7 influence in link position L sympathetic response crest and trough Property.Therefore, in the keyboard instrument (grand piano 1) with the exciting unit 50 on castanets 7, due to being total to for castanets 7 The influence of the sound timbre produced caused by ring to keyboard instrument can be controlled, therefore will not be produced with undesirable quality Sound.Further, according to above-described embodiment, the sound of frequency characteristic relatively flat can be produced in whole audiorange. In addition, according to above-described embodiment, it is not necessary that using by driving basin paper (cone paper) to produce the ventional loudspeakers of sound To drive castanets 7.In this way, because even only by encouraging castanets also to produce sound, it is possible to effectively utilize tradition The sound generation mechanism of primary sound piano, to obtain natural primary sound effect.

On the other hand, when the selection common acoustic of user's operating touch panel 60 produces pattern, exciting unit 50 is depressed Move and do not prevent hammerhead 4 from impacting string 5.Therefore, the impact of response string 5 produces sound and the vibration of string 5 is passed by crown cut 6 To castanets 7.Castanets 7 send the sound corresponding with the vibration transmitted from string 5.Under this condition, only vibration component 51 Heavy burden be applied to castanets 7, vibration component 51 is part very light in exciting unit 50.Therefore, exciting unit 50 is hardly Influence the vibration characteristics of castanets 7 so that user can play primary sound piano without damaging the original acoustic characteristic of primary sound piano.

When user's operating touch panel 60 selects sound enhancement mode, the operation of key 2,50 pairs of exciting unit are responded Impact of the excitation and hammerhead 4 of castanets 7 to string 5 is performed simultaneously.Therefore, castanets 7 are by vibration sounding, and the vibration is to be impacted String 5 vibration of castanets 7 and the vibration sum of itself caused by the exciting unit 50 are passed to by crown cut 6.By hammerhead 4 During impact, sound, and other strings 5 for not prevented to vibrate by damper 8 are sent by the vibration of itself by impact string 5 Vibrated according to the vibration of these strings 5 is passed to by crown cut 6 from castanets 7, with sound of thus empathizing.Therefore, primary sound steel The sound for the active vibration castanets that the original sound and castanets 7 of qin are produced according to the audio volume control signal exported from sound source 151 is certainly So mix, produce the performance sound of correspondence mixing sound.

Paragraph above describes a preferred embodiment of the present invention, and the present invention can be with following various other embodiment party Formula is realized.

【Change example 1】

What although the preferred embodiment of vibration component 51 (connection member 511) was kept completely separate with yoke supporter 52, Vibration component 51 can be indirectly connected with yoke supporter 52 or shell 524.

Figure 14 is the sectional view for applying the exciting unit 50A that the present invention changes example 1.Exciting unit 50A includes in example Damper unit 53, the damper unit is configured to connect connection member 511 and shell 524.Damper unit 53 is with even Relay part 511 extends and shunk from the vertical vibration of normal place, and voice coil loudspeaker voice coil 512 is not believed by driving at the normal place Number driving and also no power is applied to castanets 7 by connection member 511.In this example, in the also no and castanets of connection member 511 Under conditions of 7 are connected and are only supported by damper unit 53, the height quilt of the support unit 55 for supporting exciting unit 50A Adjustment, to cause the top surface in the connection member 511 of normal place just to be contacted with the bottom surfaces of castanets 7.Then, in this condition Under, the top surface of connection member 511 is connected with the bottom surface of castanets 7.

In this way, in normal place, exciting unit 50A weight is not applied to castanets 7.The energy of damper unit 53 The light vibration component 51 of supported weight and be highly to stretch.Therefore, when castanets 7 vibrate, due to damper unit 53, yoke The weight of holding unit 52 hardly passes to vibration component 51, therefore the vibration characteristics of castanets 7 is had little effect on or almost not had Have an impact.Further, because vibration component 51 and yoke holding unit 52 are remained connected to due to the presence of damper unit 53, therefore Workman is contributed to easily to connect exciting unit 50 and castanets 7 in manufacturing step.

【Change example 2】

Although the preferred embodiment of the grand piano 1 of the invention described is applied in grand piano, this hair before It is bright to apply also in upright piano.

Figure 15 is the internal structure view for applying the upright piano 1B that the present invention changes example 2.In fig .15, vertical type The piano part that 1B's is similar with the part of grand piano 1 with the identical reference of grand piano 1 using representing, each of simply Added with suffix " B ".In upright piano 1B, the vibration component 51B in exciting unit 50B is also connected with castanets 7B, and yoke is kept The support unit 55B supports that unit 52B is connected with allotment dagger 9B.

Figure 16 is the location arrangements view according to the exciting unit 50B for changing example 2.In this example, exciting unit 50B and position Castanets 7B between stall bars 75B is connected.Exciting unit 50B is arranged on correspondence crown cut 6B position (in other words, in crown cut 6B The back side of castanets 7B at the position of installation).And then, in Figure 16 example, although support unit 55B and multiple allotment daggers 9B is connected, but support unit 55B can also be connected with an allotment dagger 9B.Although shown exciting unit in figure 16 50B is arranged on the position for corresponding to the long crown cut in crown cut 6B, but exciting unit 50B may be alternatively located at the short string corresponded in crown cut 6B The position of horse (not shown).Further, vibration unit 50B may be provided at each position corresponding to long crown cut and short crown cut. By the arrangement, each length and short crown cut it can be desirable to vibration accurately and efficiently drive.Further, it is possible at one or One or more exciting unit 50B are set at multiple suitable positions for corresponding to each long crown cut and short crown cut.

【Change example 3】

Although in preferred embodiment before, exciting unit 50 is supported by support unit 55, so that not except shaking Heavy burden outside dynamic component 51 is applied on castanets 7, but can apply other weight except vibration component 51.For example, support is single Member 55 can support exciting unit 50 in the state of it is connected to castanets 7.Or, exciting unit directly can be connected with castanets 7, and In the absence of support unit 55.Figure 17 shows situation about existing without support unit 55.

Figure 17 is the side view for the state that the exciting unit 50C for changing example 3 using the present invention to be mounted directly on castanets 7. Exciting unit 50C includes vibration component 51C and connection member 54C.Vibration component 51C passes through connection member 54C (such as screw) Connected with castanets 7.Vibration component 51C is included in internal weight part, and the weight part is configured to respond to be input to vibration component 51C drive signal and vibrate so that castanets 7 are vibrated by the dynamic respons of weight part.

In this case, because whole exciting unit 50C weight is applied to castanets 7, if not done by compensation, then The vibration characteristics of castanets 7 may differ from preferred characteristic.For this point, changed according to the present invention in example 3, determine drive signal Frequency characteristic, its mode is the vibration characteristics that compensation changes and reduces such inconvenience.Further, in example 3 is changed, if Due to the change of vibration characteristics, the tonequality that common acoustic produces pattern is compared without the sound connected in the case of exciting unit 50C Matter changes, can by encouraged according to suitable drive signal in common acoustic generation pattern exciting unit 50C so as to Such tonequality is eliminated to change.Or, it can be configured to produce pattern without using common acoustic in example 3 is changed.

【Change example 4】

Although in preferred embodiment before, by the frequency for adjusting the audio volume control signal in equalizer unit 152 Characteristic obtains drive signal, but it is also possible to is not adjusted by equalizer unit 152 and produces drive signal.In the present invention Change example 4 in, sound source 151 be configured to produce audio volume control signal H (or audio volume control signal L), with obtain correspond to drive Dynamic signal H (or drive signal L) optimized frequency characteristic.Then, audio volume control signal H (or audio volume control signal L) can Unit 153 is exaggerated to amplify and export as drive signal H (or drive signal L).

【Change example 5】

In the above-described embodiments, drive signal H (or drive signal L) has such frequency characteristic, its with castanets 7 The sympathetic response crest and the corresponding frequency location of trough of link position H (or link position L) frequency characteristic have trough and Crest.However, drive signal can be the signal with other frequency characteristics, other described frequency characteristics are set as except altogether Other frequency locations outside the frequency location of ring crest and trough have other troughs and/or crest.If except sympathetic response ripple Other frequency locations outside the frequency location of peak and trough have other troughs and/or crest, then can realize with various sounds The alternative sounds of color.

The frequency characteristic of the different groups of each pattern combined with suitable trough and crest can be stored in advance in memory In unit 12, user can select desired pattern to be set as the frequency of drive signal by operating touch panel 60 etc. Characteristic.Further, it is possible to be constructed as follows, user determines the pattern of trough and crest preferred compositions, with really Fixed styles store is used as new template in memory cell 12.It note that drive signal H frequency characteristic and drive signal L frequency characteristic can be with different.

Drive signal is not limited to the signal for being set to suppress the sympathetic response of castanets 7, and it can have to be set to enter sympathetic response The signal of the enhanced frequency characteristic of row.In this case, drive signal not should be shaped so that trough is present in correspondence castanets 7 In the frequency band of sympathetic response crest, but it should be formed such that crest is present in the frequency band of the correspondence sympathetic response crest of castanets 7.Similarly, Drive signal should not be formed so that crest is present in the frequency band of the correspondence trough of castanets 7, but be formed so that trough is deposited In the frequency band for being the correspondence trough of castanets 7.In this connection, drive signal H frequency characteristic is arranged to trough In the frequency band for being present in correspondence sympathetic response crest, and drive signal L frequency characteristic is arranged to crest and is present in correspondence In the frequency band of sympathetic response crest.

In this way, the drive signal of each being input in multiple exciting units 50 can be the letter of any kind Number, as long as it is such signal, the signal has to be connected with castanets 7 with the vibration component 51 being included in exciting unit 50 Position at the associated frequency characteristic of vibration characteristics, wherein drive signal will be input to exciting unit 50.

【Change example 6】

Although in preferred embodiment before, drive signal H (or drive signal L) frequency characteristic is redefined for So that there is trough and ripple in the corresponding frequency band of sympathetic response crest or trough at link position H (link position L) place with castanets 7 Peak, if exciting unit 50H (exciting unit 50L) installation site changes, then the frequency characteristic of drive signal can also change, So that the frequency and amplitude (hereinafter referred to as arrange parameter) of trough and crest also change.Arrange parameter can be operated by user The grade of touch panel 60 is set.Or, it can be constructed in such a way, and response user passes through the grade input of touch panel 60 Instruct to specify installation site (such as coordinate position castanets 7 on) of the exciting unit 50 on castanets 7, control unit 11 is based on (such information includes for example representing specified coordinate for the position specified and the vibration characteristics information of expression castanets 7 set in advance The arithmetic expression of relation between position and vibration characteristics) calculate the necessary arrange parameter to be set.

【Change example 7】

Although in preferred embodiment before, exciting unit is arranged on the position for corresponding to crown cut on castanets, excitation Unit can be arranged far from the optional position of crown cut.Figure 18 is the example of the exciting unit in change example 7 of the invention Property arrangement, wherein the upright piano of the change example 2 in Figure 15 is modified in this way so that excitation is single First 50B is placed in the position away from the crown cut 6B on castanets 7B.In Figure 18 example, two exciting unit 50B be arranged in across The castanets 7B position (in Figure 18 castanets 7B back side) opposite with stall bars 75B.

Figure 19 is the upright piano internal structure view according to modification, wherein the exciting unit according to Figure 18 50B is supported by support unit 55B.As shown in figure 19, by allow plate (such as stainless steel plate) along the longitudinal direction respectively at two not With right angle is bent to form towards opposite direction at position, changing the support unit 55B of example 7 has two angled shapes.Structure The back side into the flat and upright piano 1B frame plate 90 of a support unit 55B end section passes through the phases such as screw Even.Another flat of the other end of exciting unit 50B yoke holding unit 52B with constituting support unit 55B is connected. Yoke holding unit 52B is arranged on across the castanets 7B position opposite with stall bars 75B, and yoke holding unit 52B is contained in the position It is connected to castanets 7B vibration component 51B.

In above-mentioned configuration, wherein exciting unit connects in not corresponding crown cut but the position of correspondence stall bars with castanets Connect, vibration caused by exciting unit effectively travels to whole castanets by stall bars, so as to realize that sound passes through castanets Expect to propagate.

Further, it is possible to build in this way, activation lever is set on the preceding surface of castanets, the activation lever is to be different from The rod-like members of stall bars, the preceding surface is the opposite side with surface after the castanets where stall bars, and across the castanets settings of exciting unit In the position opposite with activation lever, i.e., on the rear surface of castanets.Because activation lever can be separated with the crown cut or stall bars of presence Design, it is possible to expect shape, size, position etc. of adjustment activation lever so that the excitation of responsing excitation unit and send out Go out the sound with desired acoustic characteristic.

And then, exciting unit can be arranged at the position with corresponding crown cut as described above, stall bars or activation lever on castanets Different positions are put, as long as it is preferred that rattle can be sent from the set location on castanets.

【Change example 8】

Although in preferred embodiment before, yoke holding unit 52 can use by set of permanent magnets into magnet 522 produce Magnetisation, can control the such construction of electromagnet of the generation in magnetic field to can be used to replace permanent magnet so that vibration component 51 is depressed Stop producing magnetic field when dynamic, such as in common acoustic generation pattern.

【Change example 9】

Although in preferred embodiment before, exciting unit 50 has vibration component 51 and yoke holding unit 52, and with class It is similar to the construction of coil-moving speaker to construct, the structure of exciting unit of the invention is not limited to the knot of similar coil-moving speaker Structure.Other arbitrary structures can be used, so that exciting unit has main body and the vibration unit lighter than main body, vibration unit and main body Separate and be connected with castanets, and produce between main body and vibration unit attraction and repulsive force in response to drive signal At least one of.

Figure 20 is the exemplary sectional view for the exciting unit for changing example 9 according to the present invention, and wherein the construction of exciting unit is not It is same as coil-moving speaker.Changing the exciting unit 80 of example 9 includes the magnetic sheet 81 and the electromagnetism as main body as vibration component Body 82, the magnetic sheet is made up of the sheet ferromagnetic material being connected with castanets 7, and electromagnet 82 is supported by support unit 55.Electromagnet 82 include the core 821 formed by cylindric magnetic material and the coil 822 being wrapped on core 821 and produce magnetic force, should The intensity and polarity of magnetic force change according to from the drive signal that control unit 10 is inputted.

Magnetic sheet 81 causes castanets 7 to be vibrated according to the attraction and repulsive force of the magnetic force generation of electromagnet 82.Preferably, Magnetic sheet 81 is made by ferromagnetic material, the magnetic force that response electromagnet 82 is produced, the magnetic sheet is not only obtained along the side close to electromagnet 82 To the attraction of generation, and obtain the repulsive force produced along the direction away from electromagnet 82.However, except ferromagnetic material, magnetic Piece 81 can be made up of paramagnetic material or diamagnetic material.In this case, castanets 7 are only by the power in a direction, i.e. towards electromagnetism The direction (situation of paramagnetic material) of body 82 or the direction (situation of diamagnetic material) away from electromagnet 82, when castanets are by magnetic sheet During 81 power, castanets leave the position of its stable state, and when the power from magnetic sheet 81 is eliminated, castanets are because of recuperability towards steady State position motion is determined, so that castanets vibrate.

In exciting unit 80, the weight of only light material piece 81 is applied on castanets 7, and it is big to occupy exciting unit 80 The weight of the electromagnet 82 of moiety by weight is not applied on castanets 7.Therefore, exciting unit 80 has little influence on castanets 7 Vibration characteristics.

In a word, example 9 is changed according to embodiment, vibration component is formed by the flaky magnetic material 81 for being connected to castanets 7, encouraged Unit includes electromagnet 82, and the electromagnet is encouraged by air-gap magnetic coupling and by drive signal with flaky magnetic material.Support Unit 55 supports electromagnet.

【Change example 10】

Although in preferred embodiment before, support unit 55 is connected in support unit 55 in the state of allotment dagger 9 Exciting unit 50 is supported, and support unit 55 may be connected on the not miscellaneous part of allotment dagger 9.For example, support unit 55 Exciting unit 50 can be supported in the state of support unit 55 is connected to the side plate of grand piano 1 or leg.Further, support single Member 55 can be supported in the state of support unit 55 is connected to the building structure (such as ground, wall) in the room of the placement of grand piano 1 Exciting unit 50.

Although support unit 55 supports exciting unit 50 so that is not born a heavy burden in addition to vibration component 51 and is applied to castanets 7 On, but other weight in addition to vibration component 51 can also be applied on castanets 7.For example, changing exciting unit in example 1 50A connection member 511 can upwardly or downwardly be applied by damper unit 53 under the non-vibrating state of castanets 7 to be actuated.

【Change example 11】

The control program of above-described embodiment can in computer readable recording medium storing program for performing is stored in (such as magnetic recording medium (tape, disk), optical recording media (CD), Magnetooptic recording medium and semiconductor memory) in the state of provide.Further, For grand piano 1, control program can also be downloaded by network.

【Change example 12】

Although in preferred embodiment before, the shape of connection member 511 is that diameter is generally equal with the diameter of voice coil loudspeaker voice coil 512 Cylinder, but the shape of connection member 511 is not limited to the example.Figure 21 is showing for the example of the exciting unit of the present invention It is intended to, it is not cylindrical connection member 511 that the exciting unit, which has,.The connection member 511 of exciting unit 50 in Figure 21 is wrapped Hollow cylinder-shaped body 5111 is included, its top surface is closing, and bottom surface is unlimited, and also include the support bar of cylinder 5112, its bottom surface is connected with the top surface of main body 5111, and support bar is upwardly extended from the end face center of main body 5111.Support bar 5112 top surface is connected with the bottom surface of castanets 7, and castanets 7 are vibrated by the top surface of support bar 5112.

According to the exciting unit 50 of the connection member 511 with shape as shown in Figure 21, stall bars 75 are positioned towards swashing Encourage the desired locations (e.g., the position of correspondence crown cut 6) that unit 50 is expected to place.If or even connection member in above-described embodiment 511 shape hampers stall bars 75, and the connection member 511 changed in example 12 can also be connected with castanets 7, as long as support bar 5112 is not Hinder stall bars 75.

【Change example 13】

It can be changed in this way as the yoke holding unit 52 changed in example 13, above-described embodiment：Set and remove magnet Another magnet outside 522, to increase the magnetic flux through magnetic circuit space 525.Figure 22 A, 22B are this swashing according to change example Encourage the sectional view of unit.In Figure 22 A, 22B, annular magnet 526,523 is arranged in the top surface of yoke 521 and the bottom of yoke 523 Face, so as to be opposed with magnet 522.In such as Figure 22 B change example 13, another magnet 528 is arranged in the bar top surface of yoke 523.

In Figure 22 A, 22B, magnet 526,527 is arranged so that its polarity and the opposite polarity of magnet 522.The cloth of magnet 528 It is set to so that its polarity is identical with the polarity of magnet 522.It is such to be arranged such that the magnetic flux that is spilt upwards from yoke 521 and from yoke 523 magnetic flux spilt downwards are incorporated into magnetic circuit by magnet 527.As a result, the magnetic flux spilt is reduced, so that empty by magnetic circuit Between 525 magnetic flux increase.It should be noted that being not required to set two magnets 526 and 527, but only set in them One.In Figure 22 B, because during the magnetic flux spilt upwards from the bar top surface of yoke 523 is incorporated into magnetic circuit by magnet 528, institute To pass through the increase of the magnetic flux in magnetic circuit space 525.As a result, keep single with the yoke using the change example 13 shown in Figure 22 A or 22B The exciting unit 50 of member 52 results in the bigger driving force of exciting unit 50 of the ratio as shown in Fig. 5 and 14.

【Change example 14】

In the embodiment that Figure 13 is described, in order to determine the frequency characteristic H and L to be set in equalizer unit 152, letter Number generation unit 15 produces pulse signal and the pulse signal is input to exciting unit 50H and 50L as drive signal, can be with Using following other constructions.That is, the drive signal for being output to exciting unit 50H and 50L from signal generation unit 15 is not limited In pulse signal, and it can also be other waveform signals, such as time extension pulse signal (TSP) or sine sweep signal.

However, when the signal of the TSP class signals of Duration Ratio pulse signal length is supplied to exciting unit 50H and 50L, Excitation increases to the sound of the current vibration of response signal previous section caused by the aft section (following part) of signal On plate 7.In this case, by subtracting the ripple represented by drive signal from the voltage waveform that voice coil vibrations are obtained is measured Shape, to remove the influence brought by the additional excitation being applied on the vibrational waveform of castanets 7.

Or, in order to determine the frequency characteristic H and L to be set in equalizer unit 152, instead of responding from exciting unit 50H and 50L pulse signal and the excitation to castanets 7 caused, its can be configured as so that, be responsible for adjustment in manufacturing process Personnel's hammerhead etc. (instrument that castanets 7 will not be damaged because of impact) actual impact castanets 7 at link position H, L, then The processing of frequency characteristic designating unit 155 magnitude of voltage corresponding with the resultant vibration of castanets 7.

【Change example 15】

Above preferred embodiment and change example in, piano as keyboard instrument an example.However, except piano, Present embodiments can apply in other keyboard instruments, for example, replace string as the celesta of sounding body with metal castanets or beat Percussion instrument.

【Change example 16】

Exciting unit 50 disclosed in above-described embodiment has the feature that it can be reduced by swashing for being attached to it Encourage the heavy burden to castanets 7 of the generation of unit 50.Exciting unit 50 with such feature cannot only be applied to primary sound piano also Pianotron or other musical instruments for being equipped with castanets can be applied to.That is, exciting unit 50 and castanets 7 disclosed in above-described embodiment Combination may be used on any musical instrument, as long as musical instrument can be equipped with castanets 7, even if being not equipped with hammerhead 4 and/or string (hair Raw body) 5 can also.

Figure 23 shows the pianotron 1C of the change example 16 according to present invention internal structure schematic diagram, wherein excitation is single First 50C is arranged on castanets 7C, and castanets 7C is arranged in the electronics steel similar with the upright piano shown in change example 2 (Figure 15) In qin 1C.In fig 23, part similar with the part of grand piano 1 in pianotron 1C by grand piano 1 use it is identical Reference is shown, simply each to add suffix " C ".In pianotron 1C, exciting unit 50C vibration component 51C connections Supported to castanets 7C and yoke holding unit 52C by the support unit 55C for being connected to allotment dagger 9C.Exciting unit 50C tool Body construction is similar to previously described exciting unit 50.By the way that castanets 7C and exciting unit 50C are arranged on pianotron 1C, Vibration based on castanets 7C can produce primary sound sound.Certainly, pianotron 1C produces equipment including suitable electro-acoustic and (not shown Go out), correspond to the electronic voice signal that key 2C is operated for producing.Without saying, such electro-acoustic produces equipment can more According to any prior art configuration.

Figure 24 shows the arrangement of the exciting unit 50C in pianotron 1C.Pianotron 1C both no string had not had yet Crown cut.On the other hand, pianotron 1C has stall bars 76C, instead of the crown cut 6B of upright piano 1B (Figure 15).Stall bars 76C is set On the castanets 7C opposite with stall bars 75C surface.Each comfortable different directions extensions of stall bars 75C and stall bars 76C, and from relative See that stall bars 75C and stall bars 76C intersect each other in the orthogonal directions of castanets 7C.So, the vibration that exciting unit 50C is produced passes through whole Individual castanets 7C has effect spread.It should be noted that stall bars 75C and 76C are formed as bending rod-like members rather than direct rod shape part. Exciting unit 50C is connected to the rear surface of the castanets 7C between two stall bars 75C.Further, exciting unit 50C with castanets 7C Preceding surface on be arranged on rear surface at the corresponding positions of stall bars 76C that set.That is, exciting unit 50C, which is arranged on, makes castanets 7C It is clipped in the position between exciting unit 50C and stall bars 76C connection member.

Claims (15)

1. a kind of keyboard instrument, including：

Multiple keys；

Castanets；

Exciting unit, including vibration component and the main body with magnet, the vibration component has to be arranged in be formed by magnet Magnetic circuit space in voice coil loudspeaker voice coil, vibration component is connected to castanets and exciting unit, and the exciting unit drives in response to drive signal Dynamic voice coil loudspeaker voice coil, to allow vibration component to vibrate；

Support unit, is arranged on and is different from a part for castanets and is configured to supportive body in keyboard instrument；

Playing information generation unit, suitable for producing playing information corresponding with the operation of key；With

Signal generation unit, suitable for producing sound wave signal based on playing information, produced audio volume control signal is by conduct Drive signal is fed to voice coil loudspeaker voice coil, thus to allow vibration component to vibrate,

Wherein length of the voice coil loudspeaker voice coil along vibration component direction of vibration is equal to or less than peak excursion of the vibration component away from its normal place Two times of length sums with magnetic circuit space along vibration component direction of vibration of amount, the normal place is not shaken in vibration component The position of vibration component when dynamic.

2. keyboard instrument according to claim 1, wherein

The magnet is annular；

The main body includes being formed by annular soft magnetic material and is arranged in the first yoke on the upper surface of the magnet and by soft magnetism Second yoke of material formation, second yoke includes plate-like base unit and cylindrical bar, and the plate-like base unit is configured for The lower surface of magnet is received on the upper surface of base unit, the cylindrical bar is upwardly extended from the core of base unit, So that bar is contained in the interior hollow section of magnet, wherein refer on the upside of magnet or main body close to the side of the castanets；

The magnetic circuit space is formed between the inner surface of the first yoke and the outer surface of bar；

Longitudinal direction vibration of the vibration component along the bar；And

It is determined that a position of the longitudinal direction along the upper end of bar so that the position is equal to or higher than the position of the upper surface of the first yoke And equal to or less than the position that the vibration component has moved up after maximum offset, voice coil loudspeaker voice coil top.

3. keyboard instrument according to claim 2, further comprises at least another magnet, it is located at the upper surface of the first yoke In at least one in the downside of the second yoke.

4. the keyboard instrument according to any one in claim 1-3, further comprises the first rod-like members and the second bar Shape part, first rod-like members extend and are arranged on a surface of the castanets in a first direction, second rod-like members Extend in a second direction different from the first direction and be arranged on another surface of castanets.

5. keyboard instrument according to claim 4, the wherein vibration component are across castanets and the first rod-like members or Two rod-like members are connected to the castanets at opposite position.

6. the keyboard instrument according to any one in claim 1-3, further comprises primary sound sound generation mechanism, is suitable to Primary sound sound is produced in response to the operation of key.

7. the keyboard instrument according to any one in claim 1-3, further comprises that electro-acoustic produces equipment, is suitable to Electro-acoustic is produced in response to the operation of key.

8. any one in the keyboard instrument according to any one in claim 1-3, plurality of sound generation mode It is individual to be chosen, and when user have selected predetermined specific sound generation mode from the multiple sound generation mode, shake Dynamic component vibrates according to the drive signal.

9. a kind of keyboard instrument, including：

Multiple keys；

Castanets；

Exciting unit, including vibration component and the main body with toroidal magnet, the vibration component, which has, to be arranged in by magnet Voice coil loudspeaker voice coil in the magnetic circuit space of formation, vibration component is connected to castanets and exciting unit, and the exciting unit is believed in response to driving Number driving voice coil loudspeaker voice coil, to allow vibration component to vibrate；

Support unit, is arranged on and is different from a part for castanets and is configured to supportive body in keyboard instrument；

Playing information generation unit, suitable for producing playing information corresponding with the operation of key；With

Signal generation unit, suitable for producing sound wave signal based on playing information, produced audio volume control signal is by conduct Drive signal is fed to voice coil loudspeaker voice coil, thus to allow vibration component to vibrate,

Wherein, the main body includes being formed by annular soft magnetic material and is arranged in the first yoke on the upper surface of the magnet and by soft Second yoke of magnetic material formation, second yoke includes plate-like base unit and cylindrical bar, and the plate-like base unit is configured to Lower surface for receiving magnet on the upper surface of base unit, the cylindrical bar prolongs upwards from the core of base unit Stretch so that bar is contained in the interior hollow section of magnet, wherein refer on the upside of magnet or main body close to the side of the castanets；

Wherein the magnetic circuit space is formed between the inner surface of the first yoke and the outer surface of bar；

Wherein longitudinal direction vibration of the vibration component along the bar；And

Wherein determine a position along the longitudinal direction along the upper end of bar so that the position is equal to or higher than the upper surface of the first yoke Position and the top that after the maximum offset away from its normal place, voice coil loudspeaker voice coil is had moved up equal to or less than the vibration component The position at end, the normal place is the position of the vibration component when vibration component does not vibrate.

10. keyboard instrument according to claim 9, further comprises at least one another magnet, it is located at the first yoke In at least one in upper surface and the downside of the second yoke.

11. the keyboard instrument according to claim 9 or 10, further comprises extending and being arranged at the castanets in a first direction A surface on the first bar part, and the second bar part, second bar part is different from the of first direction Two sides upwardly extend and are located on another surface of castanets.

12. keyboard instrument according to claim 11, the wherein vibration component across castanets and the first rod-like members or Second rod-like members are connected to the castanets at opposite position.

13. the keyboard instrument according to claim 9 or 10, further comprises primary sound sound generation mechanism, is adapted for The operation of key and produce primary sound sound.

14. the keyboard instrument according to claim 9 or 10, further comprises that electro-acoustic produces equipment, is adapted for The operation of key and produce electro-acoustic.

15. any one in the keyboard instrument according to claim 9 or 10, plurality of sound generation mode is chosen Select, and when user have selected predetermined specific sound generation mode from the multiple sound generation mode, vibration component Vibrated according to the drive signal.