Stringed musical instrument with neck actuator

Abstract

The application relates to a stringed musical instrument with a neck actuator, comprising a neck, a body, an actuator, a driver and a pickup; the neck is fixedly connected with the body, the actuator, the driver and the pickup are arranged on the body, and the actuator is in abutment with the neck; the pickup is electrically connected with the driver to convert the vibration signal of the string into an electric signal and send the electric signal to the driver; the actuator is electrically connected with the driver to generate vibration after receiving the driving signal of the driver and transmit the vibration to the neck; the actuator comprises a shell, a cover, a coil, an extension rod and a push rod; the cover is fixed on the top opening of the shell to form a closed containing cavity; the coil and the extension rod are arranged in the containing cavity, and the coil circumferentially surrounds the side of the extension rod; one end of the extension rod is fixed on the bottom of the containing cavity, and the other end is in abutment with one end of the push rod; the cover is provided with a connecting hole, the other end of the push rod passes through the connecting hole and is in abutment with the neck. The application can realize the change of tone.

Description

Technical Field

[0001] This application relates to the field of stringed musical instruments, and in particular to a stringed musical instrument with a neck actuator. Background Technology

[0002] A stringed instrument is an instrument that uses the vibration of strings and converts the energy generated by the string vibrations into sound energy. For example... Figure 1 As shown, all stringed instruments have several strings 101, one end of which is fixed to the neck 201, and the other end is fixed to the body 202. Near the end of the neck 201 is a nut 102. The nut 102 and the strings 101 are in close contact, and the strings 101 exert a certain downward pressure on the nut 102. The part of the body 202 that holds the strings 101 is called the bridge 103. Similarly, the bridge 103 and the strings 101 are in close contact, and the strings 101 exert a certain downward pressure on the bridge 103. When the strings 101 vibrate, a portion of the vibrational energy is transferred to the neck 201 and the body 202 through the nut 102 and the bridge 103, respectively. Therefore, when the strings 101 vibrate, both the neck 201 and the body 202 vibrate. The vibrations transmitted to the neck 201 and body 202 are partially dissipated due to the acoustic damping of the materials, and some are transmitted back to the strings 101 through the nut 102 and bridge 103. This process repeats until the kinetic energy initially applied to the strings is converted into other forms of energy, at which point the strings stop vibrating. Therefore, it can be seen that the strings, neck, and body vibrate as a unified whole.

[0003] Besides the inherent properties of the strings themselves, the neck and body of a musical instrument also significantly influence the transmission and loss of vibrations. Therefore, the materials, shape, and dimensions of the neck and body are specially designed during instrument manufacturing. Even the method of connecting the neck and body, and the properties of the adhesive materials used, affect the transmission of vibrations, thus further determining the final sound of an instrument, i.e., its timbre.

[0004] In existing technology, the timbre of an instrument remains largely unchanged once it is manufactured. Summary of the Invention

[0005] Therefore, it is necessary to provide a stringed instrument with a neck actuator that can change the timbre, addressing the aforementioned technical problems.

[0006] A stringed instrument with a neck actuator includes: strings, neck, body, actuator, driver, and pickup;

[0007] One end of the string is connected to the neck of the instrument, and the other end is connected to the body of the instrument.

[0008] The neck is fixedly connected with the body, the actuator, the driver and the pickup are fixedly arranged on the body, and the actuator abuts against the neck;

[0009] The pickup is electrically connected with the driver to convert the vibration signal of the string into an electric signal and send it to the driver;

[0010] The actuator is electrically connected with the driver to generate vibration after receiving the driving signal of the driver and transmit it to the neck.

[0011] In one embodiment, the actuator comprises a shell, a cover, a coil, a telescopic rod and a push rod;

[0012] The cover is fixed on the top opening of the shell to form a closed accommodation cavity;

[0013] The coil and the telescopic rod are arranged in the accommodation cavity, and the coil circumferentially surrounds the side of the telescopic rod; one end of the telescopic rod is fixed at the bottom of the accommodation cavity, and the other end abuts against one end of the push rod;

[0014] The cover is provided with a connecting hole, and the other end of the push rod passes through the connecting hole and abuts against the neck.

[0015] In one embodiment, the actuator further comprises a spring;

[0016] The spring is arranged between the telescopic rod and the cover, and circumferentially surrounds one end of the push rod.

[0017] In one embodiment, the actuator further comprises a buffer plate;

[0018] The buffer plate is provided with a first connecting part abutting against the telescopic rod and a second connecting part abutting against the spring, the diameter of the first connecting part is greater than the outer diameter of the spring, and the diameter of the second connecting part is less than the inner diameter of the spring.

[0019] In one embodiment, the bottom of the actuator is provided with two connecting pieces;

[0020] One corresponding end of the connecting piece is electrically connected with two ends of the coil respectively, and the other corresponding end is electrically connected with the output end of the driver.

[0021] In one embodiment, the telescopic rod adopts magnetostrictive material.

[0022] In one embodiment, the side of the actuator is provided with a fixing piece;

[0023] The fixing piece is provided with a fixing hole, and the actuator is connected with the body through the fixing hole.

[0024] In one embodiment, the driver comprises: an analog-to-digital conversion unit, a processing unit, a digital-to-analog conversion unit and a power amplification unit connected in sequence; the analog-to-digital conversion unit is further electrically connected with the pickup, and the power amplification unit is further electrically connected with the actuator;

[0025] The analog-to-digital conversion unit is configured to receive the analog electrical signal input by the pickup and convert it into a digital electrical signal sent to the processing unit;

[0026] The processing unit is configured to receive the digital electrical signal and generate a digital control signal sent to the digital-to-analog conversion unit;

[0027] The digital-to-analog conversion unit is configured to receive the digital control signal and convert it into an analog control signal sent to the power amplification unit;

[0028] The power amplification unit is configured to receive the analog control signal and generate an analog amplified signal sent to the actuator.

[0029] In one embodiment, it further comprises an adjusting rod;

[0030] The neck is internally provided with a hollow placement cavity, and the side of the adjusting rod is in abutment with the placement cavity; one end of the adjusting rod is in abutment with the actuator, and the other end is in abutment with the neck.

[0031] In one embodiment, the connection mode of the neck and the body is one of the following: integral molding, mortise and tenon structure, screw, bolt and nut or gluing.

[0032] The above stringed musical instrument with a neck actuator proposes a new type of musical instrument structure, the neck is fixedly connected with the body, the actuator, the driver and the pickup are arranged on the body, and the actuator is in abutment with the neck, and the actuator and the pickup are electrically connected with the driver, so that when the strings are plucked, the vibration is transmitted back to the strings through the pickup, the driver, the actuator and the neck in sequence. The actuator can be controlled by the electrical signal generated by the driver and generate a certain mechanical vibration, and further conduct the mechanical vibration to the neck. In this way, the conduction characteristics of the vibration energy in the neck can be changed, and the vibration characteristics of the strings are further affected, so as to change the sound characteristics of the musical instrument and achieve the effect of changing the tone. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a schematic diagram of a stringed musical instrument in the prior art;

[0034] Figure 2 It is a schematic diagram of a stringed musical instrument with a neck actuator in one embodiment;

[0035] Figure 3Figure 1 is a cross-sectional view along A-A of a stringed musical instrument with a neck actuator in one embodiment;

[0036] Figure 4 Figure 2 is an enlarged view of B in one embodiment;

[0037] Figure 5 Figure 3 is an exploded view of the actuator in one embodiment;

[0038] Figure 6 Figure 4 is a schematic view of the actuator in one embodiment;

[0039] Figure 7 Figure 5 is a schematic diagram of the actuator in one embodiment;

[0040] Figure 8 Figure 6 is a block diagram of the driver in one embodiment;

[0041] Figure 9 Figure 7 is a schematic view of the adjustment rod in one embodiment.

[0042] Reference numerals:

[0043] string 101, bridge 102, bridge 103, neck 201, body 202, actuator 203, driver 204, pickup 205, housing 301, cover 302, coil 303, telescopic rod 304, push rod 305, spring 306, buffer plate 307, connecting piece 308, fixing piece 309, adjustment rod 401. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0046] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this application, "multiple sets" means at least two sets, such as two sets, three sets, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0049] like Figures 2 to 4 As shown, the stringed instrument with a neck actuator provided in this application, in one embodiment, includes: a string 101, a neck 201, a body 202, an actuator 203, a driver 204, and a pickup 205;

[0050] One end of the string 101 is connected to the neck 201, and the other end is connected to the body 202. The neck 201 is fixedly connected to the body 202. The actuator 203, driver 204 and pickup 205 are all fixedly mounted on the body 202, and the actuator 203 abuts against the neck 201. The pickup 205 is electrically connected to the driver 204 to convert the vibration signal of the string into an electrical signal and send it to the driver 204. The actuator 203 is electrically connected to the driver 204 to generate vibration after receiving the drive signal from the driver 204 and transmit it to the neck 201.

[0051] In this embodiment, the method of fixing the neck 201 to the body 202 is the existing technology, such as: one-piece molding, mortise and tenon structure, screws, bolts and nuts or adhesive, etc.

[0052] The actuator 203, driver 204 and pickup 205 are fixed to the body 202 in the same way as existing technology, such as mortise and tenon structure, screws, bolts and nuts or glue.

[0053] Preferably, the side of the actuator 204 is provided with a fixing member 309; the fixing member 309 is provided with a fixing hole, and the actuator 203 is connected to the body 202 through the fixing hole.

[0054] The pickup 205 is fixedly connected to the string, and the specific connection manner belongs to the prior art and will not be described here.

[0055] The pickup belongs to the prior art, and the principle and form of the pickup used in different stringed musical instruments are also different. The piezoelectric ceramic sensor is generally used as the pickup of the acoustic musical instrument to collect the mechanical vibration of the musical instrument body and convert it into an electric signal; the electromagnetic induction sensor is generally used as the pickup of the electric musical instrument to convert the mechanical vibration of the string into an electric signal output; some musical instruments have multiple pickups, and the multiple pickups can also include multiple types of pickups.

[0056] The working process of the embodiment is as follows: the finger or the plectrum plucks the string, the string produces mechanical vibration, and the two ends of the string are fixed on the neck and the body, so that part of the vibration energy of the string is transmitted to the neck and the body, and the other part is collected by the pickup; the pickup converts the vibration signal of the string into an electric signal and sends it to the driver, the driver receives the electric signal sent by the pickup, generates a driving signal according to the requirement and sends it to the actuator, the actuator receives the driving signal sent by the driver, generates vibration and transmits it to the neck, and the body also vibrates at the same time; the vibration transmitted to the neck and the body is partly consumed due to the acoustic damping of the material, and the other part is transmitted back to the string through the neck and the body, thereby forming a closed loop until the kinetic energy applied to the string is completely converted into other energy. In this way, the original pure mechanical vibration device can change the original vibration characteristics through the output of the actuator, thereby realizing the effect of changing the tone.

[0057] It should be noted that the tone change mentioned herein includes the following aspects:

[0058] One application is to change the sustain of a musical instrument. Sustain refers to the sound produced by a musical instrument after it has been initially excited (such as a user plucking a string) and continues to vibrate. For a traditional musical instrument, the characteristics of its sustain are determined by the mechanical structure and material of the entire instrument and are fixed. The present application can achieve longer sustain or infinite sustain. The implementation method is as follows: after the driver converts the original physical vibration signal coupled from the pickup into a digital signal, the digital signal is first high-pass filtered to weaken the low-frequency spur signal. Then the output signal of the filter is converted into an analog driving signal through digital-to-analog conversion and power amplification, and is used as a driving signal for the actuator; after the actuator is coupled with the driving signal, mechanical vibration is transmitted to the string through the vibration of the neck, so that a positive feedback is formed, allowing the string to continue to vibrate for a long time after the user stops plucking the string. This is an infinite sustain effect. Another solution can also be that the driver performs a high-pass filtering on the original vibration signal coupled from the pickup, and then inputs the signal into an envelope controller, and then generates a time-varying signal under the control of the envelope controller. When the time-varying signal eventually becomes the vibration of the string, a controllable extended sustain can be achieved.

[0059] Another application is to change the harmonic components of the output audio of a musical instrument. In general, we evaluate the tone of a musical instrument by considering the fundamental frequency part and the harmonic part. Among them, the fundamental frequency part is determined by the performer, and the harmonic part is determined by the characteristics of the instrument itself. The present application can achieve filtering, compensation or increase of any harmonic content of the harmonic part, so that the tone of a musical instrument can be controllably changed. After the driver converts the original physical vibration signal coupled from the pickup into a digital signal, it is first subjected to a fast Fourier transform to extract the fundamental frequency and harmonic components from the signal; then the driver processes the harmonic components, such as removing specific frequency bands through a filter; then according to the tone orientation requirements, the amplitude of a certain frequency band is enhanced, or the even multiple frequency of a certain frequency band signal is enhanced; then the processed harmonic components are converted into a digital-to-analog conversion and used as a driving signal for the actuator; and finally the effect of changing the string vibration is achieved.

[0060] The stringed musical instrument with the neck actuator has a new type of musical instrument structure, the neck is fixedly connected with the body, the actuator, the driver and the pickup are arranged on the body, and the actuator abuts against the neck, the actuator and the pickup are electrically connected with the driver, therefore, when the string is plucked, the vibration is transmitted back to the string through the pickup, the driver, the actuator and the neck in turn. The actuator can be controlled by the electric signal generated by the driver and generate certain mechanical vibration, and further transmit the mechanical vibration to the neck. In this way, the transmission characteristics of the vibration energy in the neck can be changed, and the vibration characteristics of the string are further affected, so that the sound characteristics of the musical instrument are changed, and the sound color changing effect is realized.

[0061] As shown in the drawings, Figures 5 to 6 In one embodiment, the actuator comprises a shell 301, an upper cover 302, a coil 303, an extension rod 304 and a push rod 305.

[0062] The upper cover 302 is fixed on the top opening of the shell 301 to form a closed containing cavity; the coil 303 and the extension rod 304 are arranged in the containing cavity, and the coil 303 circumferentially surrounds the side of the extension rod 304; one end of the extension rod 304 is fixed at the bottom of the containing cavity, and the other end abuts against one end of the push rod 305; the upper cover 302 is provided with a connecting hole, and the other end of the push rod 305 passes through the connecting hole and abuts against the neck 201.

[0063] In this embodiment, the shell 301 has a cylindrical structure with a top opening and a closed bottom; the connection mode of the extension rod 304 with the containing cavity belongs to the prior art; the extension rod 304 and the push rod 305 can both be provided in a cylindrical structure.

[0064] The extension rod is made of a magnetostrictive material, which can be a giant magnetostrictive material such as Terfenol-D, which has a molecular structure of Tb x Dy 1-x Fe2(x≈0.3), and generally has a saturation magnetostriction coefficient of 1000PPM.

[0065] The working process of this embodiment is that the coil generates a magnetic field when energized, the changing magnetic field causes the extension rod to deform, the deformation is transmitted to the push rod to cause the push rod to displace, thereby achieving the effect of actuation.

[0066] In one embodiment, the actuator 203 further comprises a spring 306; the spring 306 is arranged between the extension rod 304 and the upper cover 302, and circumferentially surrounds one end of the push rod 305.

[0067] In this embodiment, the spring is arranged to avoid the extension rod from contacting the upper cover when the deformation is relatively large, thereby avoiding the push rod from being pulled out of the upper cover, and ensuring the stability and reliability of the actuator.

[0068] In one embodiment, the actuator 203 further includes a buffer plate 307; the buffer plate 307 is provided with a first connecting portion that abuts against the telescopic rod 304 and a second connecting portion that abuts against the spring 306, the diameter of the first connecting portion is larger than the outer diameter of the spring 306, and the diameter of the second connecting portion is smaller than the inner diameter of the spring 306.

[0069] In this embodiment, the first connecting part and the second connecting part of the buffer plate are both disc-shaped structures and are stacked on top of each other to form a whole; the spring is spirally wound to form a hollow cylindrical structure, the outer diameter of the spring refers to the outer diameter of the cylindrical structure, the inner diameter of the spring refers to the inner diameter of the cylindrical structure, and the difference between the outer diameter and the inner diameter of the spring is the wire diameter of the spring (i.e., the material diameter of the spring).

[0070] The aforementioned buffer plate design restricts the radial travel of the spring due to the constraint of the buffer plate and the push rod, preventing misalignment between the spring and the telescopic rod, thus better ensuring the actuation effect and facilitating sound transmission.

[0071] In one embodiment, the actuator 203 has two connectors 308 at its bottom; one corresponding end of the connector 308 is electrically connected to both ends of the coil 303, and the other corresponding end is electrically connected to the output end of the driver 204.

[0072] In this embodiment, the two connectors have identical structures; one end of one connector is connected to one end of the coil, and the other end of the connector is connected to the output terminal (positive / negative) of the driver; one end of the other connector is connected to the other end of the coil, and the other end of the connector is connected to the output terminal (negative / positive) of the driver.

[0073] like Figure 7 As shown, the working principle of this embodiment is as follows: the actuator is connected to the driver through two connectors at the bottom to receive alternating drive electrical signals and couple them to the coil. The coil thus generates a changing magnetic field. The telescopic rod made of magnetostrictive material undergoes axial and radial deformation under the action of the changing magnetic field. The deformation is transmitted to the push rod through the prestressed spring, causing the push rod to displace, thereby achieving the actuation effect.

[0074] like Figure 8 As shown, in one embodiment, the driver 204 includes: an analog-to-digital conversion unit, a processing unit, a digital-to-analog conversion unit, and a power amplifier unit connected in sequence; the analog-to-digital conversion unit is also electrically connected to a microphone, and the power amplifier unit is also electrically connected to an actuator;

[0075] The analog-to-digital converter (ADC) receives the analog electrical signal input from the radio and converts it into a digital electrical signal, which is then sent to the processing unit. The processing unit receives the digital electrical signal and generates a digital control signal, which is then sent to the digital-to-analog converter (DAC). The DAC receives the digital control signal and converts it into an analog control signal, which is then sent to the power amplifier unit. The power amplifier unit receives the analog control signal and generates an amplified analog signal, which is then sent to the actuator.

[0076] In this embodiment, the analog-to-digital converter (ADC) converts analog signals into digital signals so that the processing unit can recognize them. The processing unit analyzes the received digital signals and generates digital drive signals. The digital-to-analog converter (DAC) converts digital signals into analog signals so that the power amplifier unit can recognize them. The power amplifier unit converts small-signal analog control signals into high-voltage, high-current signals with a certain power (i.e., analog amplified signals) and couples them to the actuator.

[0077] The driver 204 also includes a power supply, which is connected to the analog-to-digital conversion unit, the processing unit, the digital-to-analog conversion unit, and the power amplifier unit to provide power. The power supply may include a battery or include a power interface for coupling an external power supply.

[0078] like Figure 9 As shown, in one embodiment, it further includes: an adjusting rod 401; a hollow placement cavity is provided in the neck 201, and the side of the adjusting rod 401 abuts against the placement cavity; one end of the adjusting rod 401 abuts against the actuator 203, and the other end abuts against the neck 201.

[0079] In this embodiment, the adjusting rod is generally made of a metal with good elasticity.

[0080] The adjustment lever can adjust the curvature of the neck, which is beneficial for the transmission of sound waves, resulting in less signal distortion and less energy loss during the transmission process.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A stringed musical instrument with a neck actuator, characterized in that, The string, the neck, the body, the actuator, the driver and the pickup are included. One end of the string is connected with the neck, and the other end is connected with the body. The neck is fixedly connected with the body, and the actuator, the driver and the pickup are all fixedly arranged on the body, and the actuator abuts against the neck. The pickup is electrically connected with the driver to convert the vibration signal of the string into an electric signal and send it to the driver. The actuator is electrically connected with the driver to generate vibration after receiving the driving signal of the driver and transmit it to the neck. Further, an adjusting rod is included. The neck is internally provided with a hollow placement cavity, and the side of the adjusting rod abuts against the placement cavity; one end of the adjusting rod abuts against the actuator, and the other end abuts against the neck. The string is plucked by a finger or a plectrum, and mechanical vibration is generated; part of the vibration energy of the string is transmitted to the neck and the body, and the other part is collected by the pickup; the pickup converts the vibration signal of the string into an electric signal and sends it to the driver; after receiving the electric signal sent by the pickup, the driver generates a driving signal according to the demand and sends it to the actuator; after receiving the driving signal sent by the driver, the actuator generates vibration and transmits it to the neck, and the body also vibrates at the same time; the vibration transmitted to the neck and the body is partly consumed due to the acoustic damping of the material, and the other part is transmitted back to the string through the neck and the body, thereby forming a closed loop, until the kinetic energy applied to the string is completely converted into other energy, so as to change the original vibration characteristics through the output of the actuator and realize the change of tone color. After the actuator is coupled with the driving signal of the driver, mechanical vibration is transmitted to the string through the vibration of the neck, forming a positive feedback, so that the string continues to maintain vibration for a long time after the user stops plucking the string, thereby realizing the effect of infinite echo; alternatively, the driver performs high-pass filtering on the original vibration signal coupled from the pickup, and then inputs it into an envelope controller, and then generates a time-varying signal under the control of the envelope controller; when the time-varying signal finally becomes the vibration of the string, a controllable prolonged echo is realized. The driver filters the harmonic part, compensates or increases the arbitrary harmonic content, so as to make the tone color controllably change. The actuator includes a shell, an upper cover, a coil, a telescopic rod and a push rod.

2. A stringed musical instrument with neck actuator according to claim 1, characterized in that, The upper cover is fixed on the top opening of the shell to form a closed containing cavity. The coil and the telescopic rod are both arranged in the containing cavity, and the coil circumferentially surrounds the side of the telescopic rod; one end of the telescopic rod is fixed at the bottom of the containing cavity, and the other end abuts against one end of the push rod. The upper cover is provided with a connecting hole, and the other end of the push rod passes through the connecting hole and abuts against the neck. The actuator further includes a spring.

3. A stringed musical instrument with neck actuator according to claim 2, characterized in that The spring is arranged between the telescopic rod and the upper cover, and circumferentially surrounds one end of the push rod. The actuator further includes a buffer plate.

4. A stringed musical instrument with neck actuator according to claim 3, characterized in that, ​ The buffer plate is provided with a first connecting part abutting against the telescopic rod and a second connecting part abutting against the spring, the diameter of the first connecting part is greater than the outer diameter of the spring, and the diameter of the second connecting part is smaller than the inner diameter of the spring.

5. A stringed musical instrument with a neck actuator according to any one of claims 2 to 4, characterised in that, The actuator bottom is provided with two connecting pieces; One corresponding end of the connecting pieces is electrically connected with two ends of the coil respectively, and the other corresponding end is electrically connected with the output end of the driver.

6. A stringed musical instrument with a neck actuator according to any one of claims 2 to 4, characterised in that, The telescopic rod adopts magnetostrictive material.

7. A stringed musical instrument with a neck actuator according to any one of claims 1 to 4, characterised in that, The side of the actuator is provided with a fixing piece. The fixing piece is provided with a fixing hole, and the actuator is connected with the body through the fixing hole.

8. A stringed musical instrument with a neck actuator according to any one of claims 1 to 4, characterised in that, The driver comprises an analog-digital conversion unit, a processing unit, a digital-analog conversion unit and a power amplification unit which are electrically connected in sequence; the analog-digital conversion unit is also electrically connected with the pickup, and the power amplification unit is also electrically connected with the actuator; The analog-digital conversion unit is used for receiving the analog electric signal input by the pickup and converting it into a digital electric signal to send to the processing unit; The processing unit is used for receiving the digital electric signal and generating a digital control signal to send to the digital-analog conversion unit; The digital-analog conversion unit is used for receiving the digital control signal and converting it into an analog control signal to send to the power amplification unit; The power amplification unit is used for receiving the analog control signal and generating an analog amplification signal to send to the actuator.

9. A stringed musical instrument with a neck actuator according to any one of claims 1 to 4, characterised in that, The connection mode between the neck and the body is one of the following: integral molding, mortise and tenon structure, screw, bolt and nut or gluing.

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