CN204087780U

CN204087780U - A kind of digital stringed musical instrument

Info

Publication number: CN204087780U
Application number: CN201420307154.0U
Authority: CN
Inventors: 徐杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-11
Filing date: 2014-06-11
Publication date: 2015-01-07
Anticipated expiration: 2024-06-11

Abstract

Digital stringed musical instrument of the present utility model is modular construction, is made up of to qin tail scroll head primarily of neck button interactive module, main organ body module and string modular unit.Neck button interactive module has key-press input, touches input or individual smart machine embedding function; Main organ body module is the agent structure of electronics string qin, and button interactive module is by tongue-and-groove and main organ body model calling, and string modular unit is also disposed thereon; String modular unit is made up of string bow, string, pedestal, back-moving spring and displacement transducer, fingers a stringed instrument and the deflection of string bow opposite base can be driven to make sensor output change thus detect play action and play dynamics.

Description

A kind of digital stringed musical instrument

Technical field

The utility model relates to a kind of stringed musical instrument based on musical instrument digital interface.

Background technology

Musical instrument digital interface (Musical Instrument Digital Interface, be called for short MIDI) be the electronic communication protocol of an industrial standard, define various note for the performance apparatus such as electronic musical instrument (as compositor) or play code, allow that electronic musical instrument, computing machine, mobile phone or other stage performance are equipped with to be connected to each other, adjustment, with synchronous, is able to real-time exchange such performance data.

At present, mostly the electronic musical instrument possessing MIDI output function is button or impact type, such as pianotron, electronic keyboard, electronic drum etc.Also there is the electronic musical instrument that some are manipulated the strings, hit string and bowstring type, possessed the output function of MIDI, but their principle more complicated, based on the pickup to physical quantitys such as string speed or vibrations, by signal transacting, identify play fingering, and then generate MIDI output signal.

In addition, these electronic strianged music instruments generally all have the build similar with primary sound stringed musical instrument and structure, such as common electronic guitar and electronic violin etc., all there is the long structure such as string, neck similar with primary sound violin with acoustic guitar, playing method is also comparatively similar, plays difficulty also larger.

Utility model content

In order to overcome existing electronic strianged music instrument volume size comparatively large, play difficulty Datong District time structural principle complexity shortcoming, the utility model proposes a kind of digital stringed musical instrument, this digital stringed musical instrument is that a kind of realization catches playing action and playing dynamics of player, and convert thereof into the output of standard instrument digital interface (MIDI) agreement, thus produce a kind of stringed musical instrument of music by other electronic equipments such as the compositor that possesses midi interface or PC.

The utility model solves the technical scheme that its technical matters adopts: invent a kind of digital stringed musical instrument, form primarily of neck button interactive module, main organ body module and string modular unit, it is characterized in that: neck button interactive module is connected with embedded tongue-and-groove with main organ body, several respective independently string modular unit is arranged on main organ body.

The beneficial effects of the utility model are: on size appearance, the shortening of string length can make the entire length of musical instrument greatly shorten, thus it is more portable, on structural principle, new structure and principle make this electronics string qin musical instrument more simple and reliable, can greatly reduce costs, in experience, because the operation of chord fingering is substituted by a button, performance becomes very simple, the structure of simultaneously similar with traditional acoustic instrument string is then inherited as much as possible and remains sense of touch and the playing method of musical instrument, thus enhances the enjoyment of performance.

Accompanying drawing explanation

Below in conjunction with accompanying drawing and enforcement, the utility model is further illustrated.

Fig. 1 is the integral module structural representation of an example of the present utility model.

Fig. 2 is the example schematic of the neck button interactive module in Fig. 1 shown in 1.

Fig. 3 A is the structural representation of a kind of embodiment of string modular unit in Fig. 1 shown in 3-8, and Fig. 3 B is its element composition schematic diagram.

Fig. 4 is that the string in Fig. 3 shown in 2 bends the schematic diagram with an embodiment of string.

Fig. 5 A is the original state schematic diagram of an embodiment of the string modular unit that have employed strain-ga(u)ge transducer, and Fig. 5 B is that it makes string bend the view producing deflection because manipulating the strings.

Fig. 6 A is the original state schematic diagram of an embodiment of the string modular unit that have employed electromagnetism class sensor, and Fig. 6 B is that it makes string bend the view producing deflection because manipulating the strings.

Embodiment

The ultimate principle of this digital stringed musical instrument is, by each string of conventional string instrument is shortened greatly, and give up the thinking of traditional nut string bridge construction, every root string is independently become a string modular unit, this string modular unit has spill (or U-shaped) string bow, the string of tensioning is filled between this matrix string bow upper opening two ends, this string modular unit also comprises a pedestal, above-mentioned string bow is arranged on pedestal, drive this matrix string to bend Integral swinging when string is struck, a yaw displacement is produced relative to pedestal, application resistance strain gage, pressure transducer, the characteristic that the electrical specification of displacement transducer isogonic transposition displacement sensor changes with this yaw displacement, catch this displacement and its size, analog to digital converter is adopted to convert this displacement to digital signal, and export in real time in the mode of standard MIDI instruction, this string modular unit also comprises several back-moving spring, be connected between string bow and pedestal, can it be made to recover initial position after the deflection of string bow, in addition, the instruction of the MIDI agreement defined of standard should comprise the parameter of the most basic voice attribute, these parameters comprise: note and speed (dynamics), to this, devise neck button interactive module, this neck button interactive module has multiple button and a smart machine embedded groove, by introducing modifier key, and adopt the chord method of combination consistent with traditional acoustic guitar to define these modifier keys, realize when pressing the modifier key of corresponding appointment chord, stir each string, its midi signal sent is that it is specifying the corresponding note under chord, simultaneously, the dynamics fingered a stringed instrument and the above displacement described are directly proportional, namely dynamics is larger, displacement is also larger, thus the parameter of the MIDI information medium velocity (dynamics) exported is also larger.

Be illustrated below in conjunction with embodiment.

This digital stringed musical instrument is modular construction, and its a kind of embodiment is as shown in Figure of description 1, and wherein 1 is neck button interactive module, and 2 is main organ body module, and 3,4,5,6,7,8 is string modular unit.Neck button interactive module has the function of key-press input and the embedding of individual smart machine; Main organ body module is the agent structure of electronics string qin, and neck button interactive module is connected with main organ body by tongue-and-groove, and to increase portability, string modular unit is also disposed thereon; String modular unit is the module that string instruction was manipulated the strings, and stopped or wiped in the reception mutual with player is nucleus module of the present utility model.

The example of a button interactive module as shown in Figure of description 2, it has 12 row 6 row input keys, region as shown in Figure 1; Interface, as shown in Figure 2 region is embedded with built-in touch inputting interface or individual smart machine.The function of button can be self-defined by programming, such as, certain button is defined as the C chord of guitar, so, while pinning this button, finger a stringed instrument successively, the note included by MIDI instruction then produced is not the empty-chord sound of traditional acoustic guitar, but each note under corresponding C chord.For region shown in 2 in figure, as selected built-in touch inputting interface, it, by touching manipulation, completes the detailed configuration to melody and tone color etc.; If select individual smart machine to embed interface, then the individual smart machine of player can be embedded wherein, to make display screen and touch interface uses, similarly, can the correlation function such as practical function configuration.It should be noted that, for the arrangement mode of button, the general mode adopting 6 row, with corresponding with traditional acoustic guitar, and then realizes following same chord when needed position and fingering.

Main organ body module is the agent structure of electronics string qin, and string modular unit is disposed thereon.It should be noted that, the quantity of the string modular unit that main organ body is installed and string spacing etc. freely can be customized by user.

String modular unit is the module that string instruction was manipulated the strings, and stopped or wiped in the reception mutual with player, is nucleus module of the present utility model, and it is formed with string, back-moving spring and sensor primarily of pedestal, string bow.In Fig. 3, A is the schematic diagram of pedestal, string bow and a kind of embodiment of string and back-moving spring, and B is its decomposing schematic representation.In Fig. 3 A, 1 is pedestal, and 2 is string bow and string, and 3,4 be back-moving spring, in Fig. 3 B in 1-4 and Fig. 3 A 1-4 unanimously, in Fig. 3 B indicated by 5,6 is bearing seat on pedestal.Fig. 4 is the independent schematic diagram of this string bow and string example, and in Fig. 4,1 is string bow, and 2 is string, and indicated by 3 and 4 is the rotating shaft that string bends bottom.In this example, string bow main body is spill (in other words U-shaped), is fixed with the string of tensioning between upper opening two ends, there is outstanding rotating shaft at two ends, bottom, and be connected with pedestal by the bearing seat on pedestal, because pedestal is fixed on main organ body, string bow and string be surplus next rotation degree of freedom only.Two back-moving spring one end connect string bow, and one end connects pedestal, and has certain pretightning force, automatically reset after bending the generation deflection that is struck to make string.It should be noted that, pedestal shown in Fig. 3, string bow has multiple possible way of realization with the planform etc. of string, back-moving spring, such as, back-moving spring replaces with elastic reset sheet, and pedestal cancels the form of two walls at two ends, and string bow makes with the bar bending of higher-strength, etc., but, use the similar structures of the string bow structure proposed in the utility model, short string form, be included within the utility model scope.

Player, when playing stringed musical instrument, fingers a stringed instrument, so drive string bow to deflect around its rotating shaft, there is proportional relation between playing strength and amount of deflection, so, by detecting the dynamics that amount of deflection can be determined to play.Multiple sensors can realize such demand, is illustrated respectively below with the embodiment that have employed foil gauge and galvanomagnetic effect two kinds of sensors.

As fig. 5 a and fig. 5b, Fig. 5 A is the schematic diagram of string bow when initial position to a kind of example that have employed the string modular unit of strain-ga(u)ge transducer, and Fig. 5 B is that string is struck the schematic diagram of string bow when deflecting.Indicate numbering one_to_one corresponding in Fig. 5 A and Fig. 5 B, wherein 1 is pedestal, and 2 is string bow and string, and 3,4 is back-moving spring, and 5,6 is foil gauge.As shown in the figure, foil gauge one end is fixed on pedestal, and one end is bent with string and is connected, and like this, when string is struck, string bow 2 creates deflection, so foil gauge 5 and 6 produces distortion, its impedance operator will change, thus the detected value in circuit is changed.And dynamics of playing is larger, the deflection of string bow is larger, and the distortion of foil gauge is also larger, and the change of detected value is also larger, thus can obtain and play action and play dynamics.

Another kind have employed the example of the string modular unit of the sensor based on galvanomagnetic effect principle as shown in Figure 6 A and 6 B.Fig. 6 A is the schematic diagram of string bow when initial position, and Fig. 6 B is that string is struck the schematic diagram of string bow when deflecting.Indicate numbering one_to_one corresponding in Fig. 6 A and Fig. 6 B, wherein 1 is pedestal, and 2 is string bow and string, and 3,4 is back-moving spring, and 5,6 is electromagnetic sensor, and 7,8 is paramagnet or dielectric body.Electromagnetic sensor 5,6 is fixed on pedestal, and paramagnet or dielectric body 7,8 are fixed on string bow.When string is struck, string bow 2 creates deflection, and 7,8 relative initial position positions there occurs change, so the magnetic field of 5,6 or electric field environment change, and then output valve also changes.Equally, can detect and play action and play dynamics.

String modular unit is important people's qin interactive module unit, and it receives the operation of manipulating the strings of player, and converts thereof into the change of electric signal.Several possible embodiment of just string modular unit described above, its ultimate principle is, fingers a stringed instrument and drives the deflection of string bow sensor output value to be changed thus detects play action and play dynamics.Other optional embodiments are: use the sensor in the above-mentioned examples of replacement such as rotary variable resistor, piezoelectricity original paper, displacement transducer; Or the string bow entirety described in above-mentioned example is fixed on pedestal, it is made to lose degree of freedom, and at sensors such as its side adhering resistance strain sheets, when playing, fingering a stringed instrument, driving string bow is overall produces distortion on direction, left and right side, and then sensor output is changed thus the action of perception string.

Above one numeral stringed musical instrument structure, principle and embodiment that the utility model proposes are elaborated, specify its usefulness, and specify that technic relization scheme.The possibility example that may be out of shape relating to ultimate principle and the technical scheme proposed in the utility model is included among the utility model protection domain.

Claims

1. a digital stringed musical instrument, form primarily of neck button interactive module, main organ body module and string modular unit, it is characterized in that: neck button interactive module is connected with embedded tongue-and-groove with main organ body, several respective independently string modular unit is arranged on main organ body.

2. digital stringed musical instrument according to claim 1, is characterized in that: neck button interactive module has multiple button and a smart machine embedded groove.

3. digital stringed musical instrument according to claim 1, is characterized in that: string modular unit has pedestal, string bow, string, yaw displacement sensor and back-moving spring, and string bow is arranged on also can opposite base deflection on pedestal.

4. digital stringed musical instrument according to claim 3, is characterized in that: the string bow of string modular unit is matrix, the string of fixed tensioning between upper opening two ends.

5. digital stringed musical instrument according to claim 3, is characterized in that: back-moving spring connects string bow and pedestal, and recovers it to initial position after string bow produces deflection.

6. digital stringed musical instrument according to claim 3, is characterized in that: the deflection of string bow opposite base makes the electrical specification of yaw displacement sensor change.