A new type of electric musical pipe

Abstract

The present application relates to a new type of electronic music pipe, which is innovatively designed on the basis of traditional electronic blowing pipe, characterized by a blow nozzle-free structure, which completely changes the playing method and sanitary conditions, significantly reduces the requirement for breath control, and greatly widens the range of applicable people; the button layout is designed rigorously, the note buttons and auxiliary buttons are distributed reasonably, the layout of the left and right hand areas is convenient for players with different habits to operate, the note buttons are integrated with a force sensor, which is installed at the bottom of the button or below the circuit board, senses the playing force, and further realizes multi-dimensional control of the volume and timbre of the music, and gives the player rich expression; it has professional karaoke function, creates diverse musical atmosphere with the help of advanced audio synthesizer and multi-channel output instrument chip; the internal function corresponding table is open, and the functions of the buttons and voice commands can be personalized set; the electronic music pipe reduces the learning threshold, enriches the music performance, promotes music innovation and technological progress, and widens the application scenarios.

Description

Technical Field

[0001] This invention relates to the field of electric instrument technology, and in particular to a novel electric instrument. Background Technology

[0002] The electric wind instrument is currently widely used and is favored by music lovers and professionals. However, the electric wind instrument is played by blowing, which requires high levels of breath control and fingering skills. It is difficult to learn and requires a long period of practice to master. Playing it can easily cause fatigue and affect the performance. It is not suitable for the elderly, sick people and children, and its application has certain limitations. In addition, oral secretions can easily lead to poor hygiene. Therefore, developing a novel instrument without an electric wind instrument mouthpiece has become an urgent task and is of great importance. Summary of the Invention

[0003] The purpose of this invention is to overcome the limitations of existing electronic wind instruments in terms of playing methods, hygiene, and learning difficulty. It is a new type of musical instrument that eliminates the mouthpiece of existing electronic wind instruments. It adopts an innovative mouthpiece-less design and uses advanced velocity-sensing buttons to replace the structure and playing method of existing electronic wind instruments that combine mouthpiece and buttons. The new instrument with velocity-sensing buttons can still have excellent musical performance capabilities, significantly enhancing the user experience. At the same time, it solves the problem of poor hygiene. The mouthpiece of the electronic wind instrument is removed, but the tubular shape of the electronic wind instrument is still retained. The structure of the tube body and the novel button layout are redesigned, and a karaoke singing function is created, providing a new type of electronic wind instrument for music lovers and professional performers.

[0004] This electric instrument button integrates a force sensing device, designed to be built into the bottom of the button or under the circuit board. It can accurately capture changes in the force applied during performance, thereby achieving multi-dimensional control of volume and timbre, giving the performer greater flexibility and expressiveness, and making it easy to express new playing styles.

[0005] The button layout and simple, natural fingering are carefully designed to accommodate both left and right hand operation and adapt to the hand shapes and habits of various players. This user-friendly design greatly reduces the learning threshold, enabling beginners to master playing skills in a short time and comprehensively improving the instrument's accessibility and usability.

[0006] Furthermore, due to the introduction of the mouthpiece-less design, this electric instrument has significant advantages in terms of hygiene management, reducing the complexity of cleaning and maintenance, thus providing a safer and healthier playing platform.

[0007] The mouthpieceless electric instrument of this invention has been optimized in both function and design, which not only improves the convenience and efficiency of playing, but also shows new features of modern musical instruments. It aims to meet the needs of contemporary music creation and performance, and is a new type of musical instrument with forward-looking and practical value.

[0008] Another objective is to create an efficient and practical function mapping table to store data on the relationship between buttons and voice commands and their corresponding functions. This data is stored in the flash memory inside the microprocessor in tabular form. At the same time, the user is given permission to modify the function mapping table and to operate using the custom setting switch (204) to set the functions corresponding to the buttons and voice commands, thereby realizing personalized settings for the functions of buttons and voice commands. Users can freely customize the functions of buttons and voice commands according to their own playing habits, creative style or specific performance needs, which greatly improves the applicability and flexibility of the instrument.

[0009] According to the present invention, a novel method for implementing an electric wind instrument is proposed, which adopts an original mouthpiece-less structure, has a force-sensing button, a novel button layout, a unique karaoke function, and an open customizable function setting table, thereby creating a new type of electric wind instrument.

[0010] The objective of this invention and the technical problem it solves are achieved by the following technical solution: A novel electric instrument tube based on this invention adopts the following technical solution:

[0011] Electric wind instrument main body design:

[0012] Remove the existing mouthpiece system from the electric blowpipe and redesign its shape and internal structure;

[0013] Button layout structure:

[0014] The button layout is carefully designed. The buttons on the electric instrument are divided into different areas, including the note name button area, auxiliary button area, and left and right hand areas. The buttons in the note name area correspond to fixed note names, and the layout of the left and right hand areas facilitates personalized operation and switching according to the playing habits of the left and right hands.

[0015] The note name button with velocity sensing function:

[0016] A force sensor is installed at the bottom of each note name button or under the circuit board to sense the force with which the player presses the note name button. The microprocessor adjusts the volume, timbre and other parameters of the musical tone according to the signal from the force sensor to achieve a more delicate musical expression.

[0017] The force sensor installed at the bottom of the note name button can directly reflect the pressing force of each button. The use of contactless buttons ensures high reliability and long service life. The force sensor installed under the circuit board can save on sensors and has a simple structure.

[0018] Each button independently corresponds to a fixed note name and function, and is connected one-to-one with the internal circuit board.

[0019] Karaoke function:

[0020] The audio synthesizer uses advanced imported musical instrument chips, which are powerful and feature multi-channel output, hundreds of different timbres and sound effects, and karaoke function. These functions can be switched through specific buttons or combinations of operations, significantly enriching the combined musical expression of electric instrument tubes.

[0021] It features professional karaoke functions, adjustable echo and stereo equalizers, enhancing the versatility and entertainment value of electric music, enriching musical expression, inspiring creative ideas, adapting to various music styles and scenarios, and showcasing unique charm in different environments.

[0022] Open, customizable internal functionality:

[0023] The functions such as note name buttons, auxiliary buttons, function buttons, and voice recognition commands are open to the public. By customizing the internal function mapping table, the personalized experience of the electric instrument can be enhanced, creating a unique instrument that reflects individual habits, preferences, and innovations.

[0024] Display and operation interface:

[0025] The electric instrument tube's display screen works in conjunction with a customizable settings switch, allowing for a variety of settings and selections through simple operation, including customizable settings for the function mapping table.

[0026] Beneficial effects:

[0027] Lowering the learning difficulty: No need to master complex breath control techniques, you can easily play by pressing a button, greatly reducing the learning threshold, making it especially suitable for beginners;

[0028] Expanding the user base: By removing the mouthpiece, more groups, such as children, the elderly, and patients, can easily enjoy the experience and fun of playing the new instrument;

[0029] Rich musical expression: This electric instrument has a variety of timbres and sound effects to choose from, and also has a velocity sensing function, which can realize a richer and more diverse musical expression to meet the performance needs of different musical styles;

[0030] Personalized customization: Users can personalize and select the note names, functions, fingerings, and voice commands of the electric instrument buttons according to their own preferences and needs, creating their own unique instrument;

[0031] Promoting Music Innovation:

[0032] The emergence of new electric wind instruments will bring new possibilities to music composition and performance. They can be combined with other instruments or musical devices to create unique musical effects.

[0033] Promote the development of music technology:

[0034] The research and development and improvement of electric instrument tubes require the continuous application of new technologies and materials, which helps to promote the progress of music technology and provides new impetus and opportunities for the development of the music industry. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0036] Figure 2 This is a front view of the present invention;

[0037] Figure 3 This is a rear view of the present invention;

[0038] Figure 4 This is the left view of the present invention;

[0039] Figure 5 This is a diagram of the internal structure of the upper housing of the present invention;

[0040] Figure 6 This is a diagram of the internal structure of the lower housing of the present invention;

[0041] Figure 7 This is a top view of the present invention;

[0042] Figure 8 This is a structural diagram of the speaker base of the present invention;

[0043] Figure 9 This is a schematic diagram of the circuit board connection principle of the present invention;

[0044] Figure 10 This is a refined version of the main structure diagram of the present invention;

[0045] Figure 11 This is a front view of a refined version of the present invention.

[0046] Figure label:

[0047] 1: Main body; 2: Upper shell; 3: Panel buttons; 3a: Pitch name button;

[0048] 3b: Auxiliary button; 4: Lower casing; 5: Left side; 6: Right side;

[0049] 101L: Upper left index finger button; 102: Upper middle finger button; 103: Upper ring finger button;

[0050] 104L: Upper left pinky button; 105R: Lower right index finger button; 106: Lower middle finger button;

[0051] 107: Lower ring finger button; 108R: Lower right little finger button; 101R: Upper right index finger button;

[0052] 104R: Upper right pinky button; 105L: Lower left index finger button; 108L: Lower left pinky button;

[0053] 121: Timbre -; 122: Timbre +; 123: Lower by a semitone; 124: Raise by a semitone; 125: Pitch shift;

[0054] 126: Key switch; 127: Accompaniment selection -; 128: Accompaniment selection +;

[0055] 201: Sound sensor; 202: Voice microphone; 203: Octave switch; 204: Custom settings switch;

[0056] 205: Display screen; 206: Function buttons; 207: Power switch; 208: Upper speaker grille;

[0057] 209: Lower speaker grille; 210: Upper thumb rest; 211: Lower thumb rest;

[0058] 301: Sound sensor jack; 302: Socket hole;

[0059] 401: Button circuit board; 402: Force sensor; 403: Button board wiring socket; 411: Control circuit board;

[0060] 412: Sound sensor board; 413: Upper speaker base; 414: Lower speaker base;

[0061] 415: Upper speaker; 416: Lower speaker; 417: Input cable socket; 418: Connecting cable;

[0062] 501: Top of main body; 511: Outer ring of base; 512: Inner ring steps; 513: Fixing post;

[0063] 514: Fixing hole; 515: Inner mesh cover; 516: Sink stand;

[0064] 601: Microprocessor; 602: Musical instrument circuit; 603: Musical instrument chip; 604L: Left power amplifier;

[0065] 604R: Right power amplifier; 605: Bluetooth module; 606: Voice recognition circuit; 607: WiFi module;

[0066] 608: Power supply module. Detailed Implementation

[0067] To further illustrate the technical means and effects of the present invention in achieving a novel electric instrument, the following detailed description of the specific implementation, structure, features and effects of a novel electric instrument according to the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

[0068] Example:

[0069] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, a preferred embodiment of the present invention is a novel electric instrument tube;

[0070] Please see Figure 1 As shown, Figure 1 This is a three-dimensional structural diagram of the present invention. Figure 1 The electric wind instrument shown mainly includes a main body 1, an upper shell 2, a lower shell 4, a right side panel 6, and a panel button 3. The main body 1 includes the upper shell 2 and the lower shell 4. It is a new type of musical instrument without a mouthpiece structure, which removes the mouthpiece of an electric wind instrument. It uses a pressure-sensitive note name button 3a instead of a mouthpiece. The note name button 3a is equipped with a force sensor to sense the force of the player pressing the button. The microprocessor adjusts the volume, timbre, and other parameters of the musical tone according to the signal from the force sensor.

[0071] The upper housing 2 has a panel button 3 in its panel. The panel button 3 includes all the buttons in the panel of the upper housing 2. The panel button 3 is a collective term for all the buttons in the panel of the upper housing 2.

[0072] Please see Figure 2 As shown, Figure 2 This is a front view of the present invention. Figure 2 The main body 1 of the electric instrument shown includes an upper shell 2 and a panel button 3. The panel button 3 includes a note name button 3a and auxiliary buttons 3b. Except for the note name button 3a, the other buttons are auxiliary buttons 3b.

[0073] The note name button 3a consists of multiple buttons, namely the upper left index finger button 101L, the upper middle finger button 102, the upper ring finger button 103, the upper left little finger button 104L, the lower right index finger button 105R, the lower middle finger button 106, the lower ring finger button 107, the lower right little finger button 108R, the upper right index finger button 101R, the upper right little finger button 104R, the lower left index finger button 105L, and the lower left little finger button 108L.

[0074] To accommodate both left- and right-hand usage habits, the note name button 3a offers layouts for both left and right hand modes. The left and right index and pinky fingers each have a dedicated double-row button, with corresponding fixed buttons for both hands. The left index and pinky buttons are located slightly to the left, while the right index and pinky buttons are slightly to the right. Users can select either left or right hand mode as needed. In left-hand mode, the left hand is on top and the right hand is on the bottom; in right-hand mode, the right hand is on top and the left hand is on the bottom. Regardless of the mode, the left index and pinky fingers use the left-side buttons, and the right index and pinky fingers use the right-side buttons. The four buttons for the middle and ring fingers in the middle column—upper middle finger button 102, upper ring finger button 103, lower middle finger button 106, and lower ring finger button 107—are shared by both hands and must be used by both. The two modes are set using the custom setting switch 204, making it more convenient for users with different left- and right-hand habits to play.

[0075] The layout of the note name button 3a is shown below for both left and right hand modes;

[0076] Left hand on top mode:

[0077] Left-hand note name button 3a corresponding fingers:

[0078] The upper left index finger button 101L is the left hand index finger note name button (the note name button is one of the note name buttons 3a, and the same applies throughout the text), the upper middle finger button 102 is the left hand middle finger note name button, the upper ring finger button 103 is the left hand ring finger note name button, and the upper left little finger button 104L is the left hand little finger note name button.

[0079] Right-hand note name button 3a corresponding finger:

[0080] The lower right index finger button 105R is the right index finger note name button, the lower middle finger button 106 is the right middle finger note name button, the lower ring finger button 107 is the right ring finger note name button, and the lower right little finger button 108R is the right little finger note name button.

[0081] When the left hand is in the upper mode, the four note name buttons in the "right hand in the upper mode" section below—upper right index finger button 101R, upper right little finger button 104R, lower left index finger button 105L, and lower left little finger button 108L—also serve as auxiliary buttons 3b. Among them, the upper right index finger button 101R is used as the upward bend button, the upper right little finger button 104R is used as the downward bend button, the lower left index finger button 105L is used as the glissando button, and the lower left little finger button 108L is used as the vibrato button.

[0082] Right-hand-on-top mode:

[0083] Right-hand note name button 3a corresponding finger:

[0084] The upper right index finger button 101R is the right index finger note name button, the upper middle finger button 102 is the right middle finger note name button, the upper ring finger button 103 is the right ring finger note name button, and the upper right little finger button 104R is the right little finger note name button.

[0085] Left-hand note name button 3a corresponding fingers:

[0086] The lower left index finger button 105L is the left hand index finger note name button; the lower middle finger button 106 is the left hand middle finger note name button; the lower ring finger button 107 is the left hand ring finger note name button; and the lower left little finger button 108L is the left hand little finger note name button.

[0087] When the right hand is in the top mode, the four note name buttons in the "left hand in the top mode" – the upper left index finger button 101L, the upper left little finger button 104L, the lower right index finger button 105R, and the lower right little finger button 108R – also serve as auxiliary buttons 3b. Among them, the upper left index finger button 101L is the button for upward bend, the upper left little finger button 104L is the button for downward bend, the lower right index finger button 105R is the button for glissando, and the lower right little finger button 108R is the button for vibrato.

[0088] The note name button 3a has fingerings for various instruments such as wind instruments and flutes. Use the custom setting switch 204 to switch between them. The default is the simplest fingering for beginners: index finger note name "C", middle finger note name "D", ring finger note name "E", little finger note name "F", index finger note name "G", middle finger note name "A", and ring finger note name "B".

[0089] Its auxiliary button 3b includes tone -121, tone +122, lower semitone 123, raise semitone 124, lower semitone 125, raise semitone 126, accompaniment selection -127, and accompaniment selection +128. The function of the auxiliary button 3b can be customized as needed.

[0090] Please see Figure 3 As shown, Figure 3 This is a rear view of the present invention. Figure 3 The main body 1 of the electric instrument shown is provided with a lower housing 4. The bottom plate of the lower housing 4 is provided with a sound sensor 201, an upper speaker grille 208, a voice microphone 202, an upper thumb rest 210, an octave switch 203, a lower thumb rest 211, a custom setting switch 204, a display screen 205, a function button 206, a power switch 207 and a lower speaker grille 209, arranged in order from top to bottom.

[0091] Among them, the bottom plate of the lower housing 4 is provided with a sound sensor 201 at the top, an upper speaker grille 208 below the sound sensor 201, a voice microphone 202 below the upper speaker grille 208, an upper thumb rest 210 below the voice microphone 202, an octave switch 203 below the upper thumb rest 210, a lower thumb rest 211 below the octave switch 203, a custom setting switch 204 below the lower thumb rest 211, a display screen 205 below the custom setting switch 204, a function button 206 below the display screen 205, a power switch 207 below the function button 206, and a lower speaker grille 209 below the power switch 207.

[0092] Among them, the function button 206 includes multiple buttons, at least two are required, and the upper thumb support 210 and the lower thumb support 211 form a double thumb support structure to make the operation more stable;

[0093] The upper speaker grille 208 and the interior of the upper speaker grille 208 are respectively equipped with speakers;

[0094] In addition to mechanical contact switches, membrane switches or touch switches can be installed on the surface of the bottom plate of the lower housing 4.

[0095] Please see Figure 4 As shown, Figure 4 This is the left view of the present invention. Figure 4 The main body 1 of the electric instrument shown has a left side surface 5, and a sound sensor jack 301 and a socket jack 302 are provided in the left side surface 5.

[0096] The left side of the left side 5 is the bottom plate of the lower housing 4. The bottom plate of the lower housing 4 is provided with an upper thumb support 210 and a lower thumb support 211, an octave switch 203 and a custom setting switch 204, as well as a function button 206 and a power switch 207.

[0097] In the figure, the right side of the left side 5 is the panel of the upper shell 2, and the panel of the upper shell 2 is equipped with panel buttons 3.

[0098] Please see Figure 5 and Figure 6 As shown, Figure 5 This is a diagram of the internal structure of the upper housing of the present invention. Figure 5 The upper housing 2 shown in the figure has a button circuit board 401 installed inside. The front of the button circuit board 401 has a panel button 3 and a force sensor 402 installed on it. The button head of the panel button 3 extends from the button hole of the upper housing 2 to the panel surface.

[0099] The button circuit board 401 is also equipped with a button board wire socket 403. The button board wire socket 403 is installed on the back of the button circuit board 401, and the output wire of each button of the panel button 3 is connected to the pin of the button board wire socket 403 respectively.

[0100] The note name button 3a in panel button 3 is equipped with a force sensor 402. The force sensor 402 is installed at the bottom of the note name button 3a or below the button circuit board 401. The force sensor 402 senses the force of pressing the button. The auxiliary button 3b in panel button 3 is a switch button without a force sensor (the switch here refers to an electronic switch or contact). The output line of each button of note name button 3a and auxiliary button 3b is connected to each pin of button board wire socket 403 in a one-to-one connection manner.

[0101] In this embodiment, the main body 1 does not have a mouthpiece. Instead, a pressure-sensitive note name button 3a is used to replace the pressure-sensitive function of the mouthpiece to achieve dynamic control of the musical tone. The note name button 3a is composed of multiple sets of buttons, at least four sets, each set of buttons is equipped with a force sensor. The force sensor is installed on the button circuit board 401. A button is installed above each force sensor. The force sensor is at the bottom of the button. An elastic buffer medium is installed between the force sensor and the button. The buffer medium can be a flexible material such as silicone, rubber, plastic or spring. When the button is pressed, it plays a buffering role, reducing the impact and damage to the force sensor and extending its service life.

[0102] The note name button 3a consists of 12 buttons. The buttons have no switch contacts and are contactless switches. When the output signal of the force sensor is higher than the threshold voltage, the button is activated. Stray signals or background noise below the threshold voltage are prohibited from entering. The threshold voltage is set by the microprocessor 601 in the AD converter. For example, the threshold voltage is 0.1V. The magnitude and change of the signal are used to control the pitch of the musical note or to produce special sound effects such as pitch bend, glissando, or vibrato.

[0103] Another implementation method for the note name button scheme: The force sensor 402 can be installed not only below each button in the note name button 3a, but also below the button circuit board 401. It senses the pressure transmitted through the button circuit board 401 when the note name button 3a is pressed. Four force sensors or sensors that can sense vibration or sound are used, with at least two. The feature of this scheme is that it uses only a small number of force sensors as a common one, reducing the number of force sensors and making the structure simpler. However, the button needs to be a button switch with contacts. Whenever the button switch signal is detected, the force signal sensed by the force sensor 402 below the circuit board 401 must be detected at the same time. The force sensors can be connected in series to obtain the sum of multiple signals, or the signals of each force sensor can be detected separately, and then the force data of the current button press can be obtained through calculation.

[0104] Please see Figure 6 As shown, Figure 6 This is a diagram of the internal structure of the lower housing of the present invention. Figure 6 The lower housing 4 shown in the diagram contains a control circuit board 411, an upper speaker base 413, and a lower speaker base 414; wherein the upper speaker base 413 is located in the upper part of the lower housing 4, and the lower speaker base 414 is located in the lower part of the lower housing 4.

[0105] The control circuit board 411 includes an octave switch 203, a custom setting switch 204, a display screen 205, function buttons 206, a power switch 207, an input cable socket 417, and a control circuit.

[0106] Among them, the octave switch 203 is located on the upper part of the control circuit board 411, the custom setting switch 204 is located in the middle of the control circuit board 411, the display screen 205 is located below the custom setting switch 204, the function button 206 is located below the display screen 205, and the power switch 207 is located below the function button 206; the input cable socket 417 is located on the upper part of the front of the control circuit board 411, the control circuit is installed on the front and back of the control circuit board 411, the IO input terminal and the AD conversion circuit input terminal of the control circuit are connected to the input cable socket 417, and the input cable socket 417 is connected to the button board wire socket 403 on the back of the button circuit board 401 through the connecting cable 418 to receive the signals of each line output by the tone name button 3a, the auxiliary button 3b and the force sensor 402 from the button circuit board 401;

[0107] Among them, the octave switch 203 and the custom setting switch 204 are 5-position switches, which are divided into 5 buttons: up, down, left, right and center. They are switches with at least 2 positions. The octave switch 203 and the custom setting switch 204 are fixed on the back of the control circuit board 411. The heads of the switch buttons extend from the bottom switch hole inside the lower housing 4 to the surface of the bottom plate of the lower housing 4. The octave switch 203 is used to control the octave pitch during performance. It has two pitch operation modes: step octave or fixed octave. The operation mode can be switched through the custom setting switch 204.

[0108] Step-Octave Mode:

[0109] The up button raises the pitch by one octave, and each press raises the pitch by one octave. The down button lowers the pitch by one octave, and each press lowers the pitch by one octave. Pressing the up and middle buttons simultaneously raises the pitch by two octaves, and each press lowers the pitch by two octaves. Alternatively, the left button raises the pitch by two octaves, and each press raises the pitch by two octaves. The right button lowers the pitch by two octaves, and each press lowers the pitch by two octaves. Pressing the middle button alone resets the pitch to the original default octave. The step mode maintains the currently selected octave with each button press, and resets the pitch to the original default octave with each press of the middle button. The control range of the step octave mode is 9 octaves.

[0110] Fixed octave mode:

[0111] The up button has an octave 1 pitch and is octave 1 when pressed; the down button has an octave -1 pitch and is octave -1 when pressed; the left button has an octave 2 pitch and is octave 2 when pressed; and the right button has an octave -2 pitch and is octave -2 when pressed. There are four options in total. Releasing the button restores the initial default octave. The fixed octave mode is effective when the button is pressed and returns to the initial default octave when the button is released. The control range of the fixed octave mode is 5 octaves.

[0112] If the custom setting switch 204 is not frequently used, it can be set to function as the same as the octave switch 203. This provides the octave switch 203 and the custom setting switch 204, which control the pitch of two octaves, and can be used as a second octave switch. This allows the player to flexibly use either the octave switch 203 or the custom setting switch 204 to control the pitch in either left-hand or right-hand mode. Furthermore, the player can use the right thumb to control the octave when playing the note name with the left hand, and the left thumb to control the octave when playing the note name with the right hand. The player can also use the other hand to control the octave while playing the note name. Separating the hands to control the note name button and the octave button helps to firmly hold the electric instrument body 1. Using two octave switches enhances the stability, convenience, and flexibility of octave pitch control.

[0113] Function button 206 consists of multiple push-button switches, fixed on the reverse side of control circuit board 411, with the switch head protruding from the switch hole on the bottom plate of lower housing 4. Power switch 207 is fixed on the reverse side of control circuit board 411, with the switch head protruding from the switch hole on the bottom plate of lower housing 4. Display screen 205 is fixed on the reverse side of control circuit board 411 via a socket and embedded in the display screen opening on the reverse side of control circuit board 411.

[0114] In addition to mechanical contact switches, the switches installed in the control circuit board 411 can also be membrane switches or touch switches installed on the surface of the bottom plate of the lower housing 4. The switch leads are connected to the control circuit board 411 through sockets.

[0115] The leads of the panel button 3 (which includes the force sensor 402) in the button circuit board 401 are connected to the control circuit board 411 through the plug socket, and are connected one-to-one with the IO input terminal and AD conversion input terminal of the control circuit. The leads of each switch or force sensor are connected one-to-one to the unique input terminal of the control circuit board 411, and each input signal occupies one IO input or AD conversion input interface.

[0116] The lower housing 4 also houses a sound sensor board 412, on which a sound sensor 201 is mounted and connected to the audio input terminal of the control circuit board 411 via a lead wire.

[0117] Please see Figure 7 As shown, Figure 7 This is a top view of the present invention. Figure 7 The diagram shows the structure of the head of the main body 1. The top 501 of the main body 1 is the top of the main body. The top 501 is flat or dome-shaped and has no mouthpiece, which is a key difference from an electric blowpipe. The upper thumb support 210 shown in the diagram is the thumb support on the bottom plate of the lower housing 4.

[0118] Please see Figure 8 As shown, Figure 8 This is a structural diagram of the speaker base of the present invention. Figure 8 The lower speaker base 414 inside the lower housing 4 of the main body 1 shown in the figure is one of two speaker bases provided inside the lower housing 4. They have the same structure, only different sizes. The lower speaker base 414 is explained as an example below:

[0119] The lower speaker base 414 includes an outer ring 511, an inner ring step 512, a fixing post 513, a fixing hole 514, an inner mesh cover 515, and a basket frame 516.

[0120] Among them, the outer ring 511 of the base is the thickened outer platform of the base, and the inner ring step 512 is a recessed step inside the outer ring 511 of the base, which can position, seal and dampen the speaker. The four fixing posts 513 are located at the four corners of the outer ring 511 of the base and are integrated with the outer ring 511 of the base. This structure makes the outer ring 511 of the base thickened and reinforced and easy to resist vibration. The fixing post 513 has a fixing hole 514 in the center, and the speaker frame 516 is fixed with screws. The fixing post 513 is a thickened structure, and the screw fixing frame 516 is not easy to crack. The inner mesh cover 515 is the inner mesh cover of the speaker base 414. The shape of the inner mesh cover 515 can be flat or protruding outward.

[0121] The 516 speaker frame is the mounting bracket for the speaker itself. The one shown in the picture is a square speaker frame. This structure is convenient and sturdy for square speaker frames, and it is also suitable for round speaker frames.

[0122] Please see Figure 9 As shown, Figure 9 This is a schematic diagram of the circuit board connection principle of the present invention. Figure 9 The diagram shown is a schematic diagram of the circuit board connection of the present invention. The circuit board in the figure includes a button circuit board 401 and a control circuit board 411. The diagram mainly illustrates the internal circuit of the circuit board and the connection relationship between the circuit boards.

[0123] The button circuit board 401 mainly includes a panel button 3 and a button board wire socket 403. The panel button 3 is connected to the button board wire socket 403. The panel button 3 includes a note name button 3a and an auxiliary button 3b. The note name button 3a is equipped with a force sensor 402. The output line of each button is connected to each pin of the button board wire socket 403 in a one-to-one manner.

[0124] The control circuit board 411 mainly includes a microprocessor 601, a musical instrument circuit 602, a musical instrument chip 603, a left power amplifier 604L, a right power amplifier 604R, a Bluetooth module 605, a voice recognition circuit 606, a WiFi module 607, and a power supply module 608, as well as... Figures 1-6 The instrument circuit 602 includes a sound sensor 201, a voice microphone 202, an octave switch 203, a custom setting switch 204, a display screen 205, a function button 206, and an input cable socket 417. The instrument circuit 602 includes an instrument chip 603, a left power amplifier 604L, a right power amplifier 604R, and a sound sensor 201.

[0125] In addition, the upper speaker 415 and the lower speaker 416 are respectively fixed in the upper speaker base 413 and the lower speaker base 414 inside the lower housing 4 outside the circuit board;

[0126] Among them, the microprocessor 601 in the control circuit board 411 is connected to the input cable socket 417, octave switch 203, custom setting switch 204, function button 206, display screen 205, musical instrument circuit 602, musical instrument chip 603, Bluetooth module 605, voice recognition circuit 606, WiFi module 607, power module 608 and download socket JP2.

[0127] The button circuit board 401 is connected to the control circuit board 411 via a connecting cable 418. The button circuit board 401 is equipped with a button board wire socket 403, and the control circuit board 411 is equipped with an input cable socket 417. The button circuit board 401 is connected to the control circuit board 411 via the button board wire socket 403 and the input cable socket 417.

[0128] In order to better understand the technical means of the specific implementation of the present invention, the connection relationship of the control circuit is further described in detail below;

[0129] The circuit of the note name button 3a in the panel button 3 on the aforementioned button circuit board 401 is a button composed of a force sensor 402 and an operational amplifier circuit. Each button is equipped with a force sensor 402 to form a group of buttons. The note name button 3a includes multiple groups of buttons, with at least 4 groups used. The circuit and structure of each group of buttons are the same. Multiple groups of buttons make up the note name button 3a. In this embodiment, 12 groups of buttons are used. The following description takes the first group of buttons as an example: The circuit of the first group of buttons is equipped with a sensor B1, which is one of the force sensors 402. One end of the sensor B1 is connected to the analog ground AGND, and the other end is connected to the pull-up resistor R1 and the positive input terminal of the operational amplifier OPA1. The negative terminal of the operational amplifier is connected to the input resistor R13 and the negative feedback resistor R25. The other end of R13 is connected to the analog ground AGND, and the other end of R25 is connected to the output terminal of the operational amplifier OPA1. The output terminal of the operational amplifier is connected to one of the pins of the button board wire socket 403. The circuit principle of each group of buttons is the same, and their output terminals are connected to different pins in the button board wire socket 403 in a one-to-one manner.

[0130] Among them, auxiliary button 3b is a button switch with contacts, a total of 8, at least 2 of which are used. Each button switch of auxiliary button 3b is connected to a different pin of button board wire socket 403 in a one-to-one manner.

[0131] The main pins of the microprocessor 601 in the control circuit board 411 that connect to the external circuit are USART1_TX, USART1_RX, USART2_TX, USART3_TX, USART3_RX, UART4_TX, UART4_RX, PD_OUT, PE12, PE13, PE14, PE15, PB12, PB13, P_SD, Keys-206, Keys-203, Keys-204, AD0_IN-AD11_IN, and IN1-IN8;

[0132] in:

[0133] The USART1_TX terminal of the microprocessor 601 is connected to the RX terminal of the download socket JP2, and the USART1_RX terminal is connected to the TX terminal of the download socket JP2. The working program is programmed into the microprocessor 601 using a USB to TTL data cable. The +5V power terminal of the download socket JP2 is also connected to the power module 608 to provide power or charge the internal power supply.

[0134] Remote programming: The USART1_TX terminal of the microprocessor 601 is also connected to the RXD terminal of the WiFi module 607 via connector JB1, and the USART1_RX terminal of the microprocessor 601 is connected to the TXD terminal of the WiFi module 607 via connector JB2. The PD_OUT terminal of the microprocessor 601 is connected to the CH_PD terminal of the WiFi module 607 to control the WiFi module 607 to be enabled or disabled. When needed, the microprocessor 601 can be remotely programmed or the system upgraded wirelessly via the WiFi module 607. Normally, connectors JB1 and JB2 are in the connected state. The data cable is used to program only when connectors JB1 and JB2 need to be disconnected during the production process.

[0135] The USART2_TX transmitter of the microprocessor 601 is connected to the MIDI IN input of the instrument chip 603 in the instrument circuit 602. The MIDI IN of the instrument chip 603 is connected to a pull-up resistor R40, and the other end of the pull-up resistor R40 is connected to the positive power supply. The left channel audio output AUDIO_L of the instrument chip 603 is connected to the input IN_L of the left power amplifier 604L and the input IN_L of the Bluetooth module 605. The right channel audio output AUDIO_R of the instrument chip 603 is connected to the input IN_R of the right power amplifier 604R and the input IN_R of the Bluetooth module 605. The P_SD output of the microprocessor 601 is connected to the enable SD of the left power amplifier 604L and the right power amplifier 604R to control the enable or disable of the left power amplifier 604L and the right power amplifier 604R. The AOUT output of the left power amplifier 604L is connected to the upper speaker 415, and the AOUT output of the right power amplifier 604R is connected to the lower speaker 416.

[0136] The instrument chip 603 is a professional electronic instrument chip with hundreds of instrument timbres and various percussion accompaniments. The model of the instrument chip 603 is SAM2695. It is a single-chip integrated audio processing chip with a MIDI control processor, serial and parallel interfaces, a complete built-in GM sound set, and supports synthesized audio. It has a universal MIDI wavetable with hundreds of instrument timbres and supports universal MIDI compatible effects, including reverb and chorus. It also supports 64 / 38 channel multi-effects, spatial stereo effects, microphone input, microphone echo function, input amplifier, 4-band stereo equalizer, audio stereo circuitry, and velocity, pitch bend and glissando control. The built-in functions are very powerful. For specific functions and usage methods, please refer to the chip technical manual. The instrument chip 603 can also use SAM5000 series models such as SAM5704 or SAM5916, and more advanced chips will be selected as technology advances.

[0137] This electric instrument has a karaoke function, which is mainly achieved by the combination of a microprocessor 601, a custom setting switch 204, a function button 206, an instrument circuit 602, an instrument chip 603, a sound sensor 201, a sound sensor socket J4, a Bluetooth module 605, and a voice recognition circuit 606 in the control circuit.

[0138] The MICIN microphone input of the instrument chip 603 is connected to the sound sensor 201 and the sound sensor socket J4, respectively. The microprocessor 601 receives the start signal from the function button 206 or the voice command, and sends a MIDI signal to the instrument chip 603 in the instrument circuit 602 via the USART2_TX terminal. The IN input terminal sends MIDI messages to control the instrument chip 603 to enable karaoke functions such as microphone input, microphone echo, input amplifier, and equalizer, as well as their parameter configurations. Function button 206 includes start buttons for karaoke-related functions such as start / stop, echo, and stereo equalizer, and parameter adjustment buttons (e.g., echo + / -, equalizer adjustment, etc.). The singing sound is output from the built-in sound sensor 201 or an external microphone plugged into the sound sensor socket J4 to the MICIN microphone input terminal of the instrument chip 603. The audio signal is amplified by the input amplifier inside the instrument chip 603 and output from the left channel audio output terminal AUDIO_L and the right channel audio output terminal AUDIO_R to the left power amplifier 604L and the right power amplifier 604R, respectively, which then drive the upper speaker 415 and the lower speaker 416 to emit the singing sound, or the instrument chip 603 outputs an audio signal to the Bluetooth module 605 to send it to an external speaker.

[0139] Among them, function button 206 has three equalizer adjustment buttons. Long press to enhance, short press to reduce, and adjust the low, mid and high frequencies of the audio separately. According to the needs of the music, it can produce effects such as stable, powerful, full, bright, penetrating or clear, as well as create unique sound effects or specific styles in combination with different timbres, making the overall music sound more harmonious and pleasant. The equalizer works for both karaoke and music signals. Function button 206 also has shortcut function buttons for starting and stopping karaoke, starting and stopping Bluetooth, selecting instrument timbre, switching instrument fingering, and switching accompaniment.

[0140] The voice recognition circuit 606 has MIC+, MIC-, UART2_RX, UART2_TX, UART0_TX, and UART0_RX pins. MIC+ and MIC- are microphone input terminals, connected to a voice microphone 202 to receive voice signals. SPK+ and SPK- are speaker output pins connected to socket J6, which can be connected to a speaker to broadcast voice messages when needed. UART2_RX and UART2_TX are communication interfaces connected to the microprocessor 601. The USART3_TX of the microprocessor 601 is connected to the UART2_RX terminal of the voice recognition circuit 606, and the USART3_RX of the microprocessor 601 is connected to the UART2_TX terminal of the voice recognition circuit 606, transmitting the voice recognition result signal to the microprocessor 601 to execute voice control operations. The UART0_TX and UART0_RX pins are download interfaces for burning voice commands and are connected to socket J5, which can be connected to a USB-to-TTL data cable to burn voice commands when needed.

[0141] The 606 speech recognition circuit uses an ASRPRO chip with a built-in neural network processor, supporting functions such as speech recognition, voiceprint recognition, speech enhancement, and speech detection. It also has strong echo cancellation and environmental noise suppression capabilities.

[0142] The voice recognition circuit 606 converts voice commands into digital signals, which are provided to the microprocessor 601 to control the instrument chip 603 to perform various quick commands such as timbre selection, volume adjustment, and accompaniment selection. This replaces the auxiliary button 3b and function button 206 for quick operation and execution of more commands (such as: start / stop Bluetooth, start / stop karaoke, change timbre, etc.).

[0143] The PE12, PE13, PE14, PE15, PB12 and PB13 pins of the microprocessor 601 are connected to the SCL, SDA, RES, DC, CS and BL pins of the display screen 205, respectively. Among them, the SCL pin is the clock line, the SDA pin is the data line, the RES pin is the reset pin, the DC pin is the data or instruction select pin, the CS pin is the chip select pin, and the BL pin is the backlight control pin. The microprocessor 601 sends display data to the display screen 205 through the SCL and SDA pins in the SPI interface communication mode to display the working status or function parameters.

[0144] The UART4_TX pin of the microprocessor 601 is connected to the RX pin of the Bluetooth module 605, and the UART4_RX pin of the microprocessor 601 is connected to the TX pin of the Bluetooth module 605 to control the opening or closing of the Bluetooth module 12. When not needed, it is used to save power.

[0145] The Bluetooth module 605 is a wireless Bluetooth audio transceiver module that integrates Bluetooth stereo audio transmission and reception. It adopts Bluetooth 5.3 protocol version and works in Bluetooth audio transmission mode or Bluetooth audio reception mode. This system is only used in Bluetooth audio transmission mode. The IN_L and IN_R pins are the left and right channel audio input terminals. It receives the stereo audio signals sent by the AUDIO_L and AUDIO_R terminals of the instrument chip 603 and sends Bluetooth audio to external Bluetooth speaker peripherals in Bluetooth audio transmission mode.

[0146] The input terminals of the AD converter of the microprocessor 601 are connected to the input cable socket 417, and the 12 input terminals of AD0_IN-AD11_IN in the AD converter of the microprocessor 601 are connected one-to-one to the 12 pins of the input cable socket 417.

[0147] The I / O input terminal of the Keys-203 of the microprocessor 601 is connected to the contact of the octave switch 203;

[0148] The IO input terminals of the Keys-204 of the microprocessor 601 are connected to the contacts of the custom setting switch 204 respectively;

[0149] The I / O input terminal of Keys-206 of microprocessor 601 is connected to the button of function button 206;

[0150] The microprocessor 601 is the core processor of this system, responsible for detecting, processing and controlling the peripheral circuits and ensuring the orderly operation of the entire system. The I / O input of the microprocessor 601 receives the switching signals from the auxiliary button 3b, the octave switch 203, the custom setting switch 204 and the function button 206. The AD converter inside the microprocessor 601 converts the received pressure signal of the note name button 3a into velocity data, and determines the octave pitch and pressure of the note name button by combining the state of the octave switch 203. It converts the data into MIDI message format data and sends the data to the instrument circuit 602 through the MIDI communication interface. The instrument chip 603 in the instrument circuit 602 outputs the generated musical sound signal to the left power amplifier 604L and the right power amplifier 604R, driving the upper speaker 415 and the lower speaker to emit musical sounds respectively. It can also send the musical sound signal output by the instrument chip 603 to the Bluetooth module 605 to send Bluetooth audio signals to external speakers.

[0151] During the performance, the microprocessor 601 detects the signal of the auxiliary button 3b in real time and executes corresponding auxiliary operation functions such as volume adjustment, semitone, pitch bend, glissando, and key change.

[0152] Function button 206 outputs a switch signal (indicating the button's pressed or released state) to microprocessor 601, controlling instrument circuit 602 to perform more auxiliary operation functions such as song selection and accompaniment;

[0153] In addition, the voice recognition circuit 606 can transmit voice command data to the microprocessor 601 via the SPI interface to execute the voice command, and can also send data to the display screen 17 via the serial port to display the command and related prompts;

[0154] The custom settings of the function correspondence table are achieved by using the custom settings switch 204 in conjunction with the display screen 205 to operate the button functions and voice command functions in the function correspondence table, modifying the correspondence between the note name button 3a, auxiliary button 3b, function button 206 and voice command and their respective functions, changing their corresponding function options, and storing them in the flash memory inside the microprocessor 601, thereby realizing personalized custom settings for the electric instrument tube.

[0155] During performance, the microprocessor 601 controls the instrument chip 603 in the instrument circuit 602 to emit musical signals or perform related operations according to the correspondence in the function correspondence table.

[0156] Function mapping table and its operation:

[0157] Please refer to Table 1, which is the function correspondence table of the note name button 3a. It is one of the function correspondence tables of this system. The following explanation will use this function correspondence table as an example.

[0158] Table 1 shows the correspondence between each button in note name button 3a and its note name;

[0159] Table 1:

[0160]

[0161]

[0162] Table 1 is divided into two columns. The left column is the "Pitch Name Button Number" field, where the number represents the sequence number of the buttons. The right column is the "Function Item (Pitch Name)" corresponding to the pitch name button 3a. To customize the pitch name of the button 3a, you can use the custom setting switch 204 and the display screen 205. Changing the "Pitch Name" field of the pitch name button 3a in the function correspondence table changes the pitch name of the button 3a. For example, to change the pitch name of button number 4 in Table 1 from "D" to "C", first press the up and down buttons of the custom setting switch 204. Select the row numbered 4, press the OK button, and then use the up and down buttons in the "Function Items" list to move to the row containing the note name "C". Press the OK button to complete the modification (repeat the above operation to modify the note names corresponding to other buttons). Press and hold the OK button to exit the current operation and save the changed data to the function correspondence table in the internal flash memory of the microprocessor 601. During the operation, the display screen 205 will display the options and operation prompts for each step. The custom operation of auxiliary button 3b, function button 206 and other functions is the same.

[0163] By enabling open settings for the note name button 3a in the function mapping table, the note names of the buttons can be redefined, changing the correspondence between buttons and note names. A single note name can be defined as multiple buttons, or a single button can be defined as multiple note names. This allows the note name button 3a to be easily set to fingerings similar to note names of other instruments or a single button to be defined as a chord. In addition, the function mapping table contains fingerings for various instruments, which can be easily switched by operating the custom setting switch 204.

[0164] During performance, when the button in note name button 3a is pressed, the microprocessor 601 extracts the note name corresponding to the button in the function correspondence table, and determines the volume and pitch of the current note name based on the velocity data of note name button 3a and the state of octave switch 203 or custom setting switch 204, converts it into the corresponding MIDI message code, and sends it to the instrument chip 603 in instrument circuit 602 through MIDI interface communication to generate musical tone signal;

[0165] In addition to using the custom setting switch 204 to modify the function correspondence table for custom operations, voice commands can also be used to replace the custom setting switch 204 for operation. The voice operation commands include: up, down, left, right, confirmation, and exit, etc. During the setting process, the voice microphone 202 converts the received voice commands into electrical signals and sends them to the voice recognition circuit 606 for voice recognition. The voice recognition circuit 606 transmits the recognized command result data to the microprocessor 601 via SPI interface communication. The microprocessor 601 controls the display screen 205 through the serial port to display the voice operation commands. After the setting is completed and exited, the microprocessor 601 stores the voice command setting data in the internal flash memory.

[0166] Please see Figure 10 As shown, Figure 10 This is a refined version of the main structure diagram of the present invention. Figure 10 The image shows a refined version of the main body 1. The refined version of the main body 1 includes a panel button 3, a right side panel 6, and a top panel 501. The top panel 501 is located at the top of the main body 1 and has no mouthpiece. The refined version of the main body structure is similar to... Figure 1 The main structure is basically the same, but the volume of the main body 1 is reduced, the length, width and height of the main body 1 are reduced, the size of the lower speaker 416 is reduced, the lower part of the electric instrument tube main body 1 is narrowed, the overall weight is reduced, the lines are natural and smooth, and it is lighter and easier to carry.

[0167] Please see Figure 11 As shown, Figure 11 The front view of the refined version of the present invention shows that the panel button 3 in the upper housing 2 includes a note name button 3a and an auxiliary button 3b. The structural layout of the note name button 3a is slightly changed, and the distance between the upper and lower hands is increased to the distance between two buttons. The number of auxiliary buttons 3b is reduced to four.

[0168] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been described above with reference to preferred embodiments, it is not intended to limit the present invention. Any equivalent changes or modifications made to the methods and technical solutions of the present invention shall fall within the scope of the methods and technical solutions of the present invention.

Claims

1. A novel electric instrument tube, characterized in that, The electric instrument tube includes: a main body (1), an upper shell (2), a lower shell (4), a panel button (3), a note name button (3a), an auxiliary button (3b), a sound sensor (201), an upper speaker grille (208), a voice microphone (202), an upper thumb rest (210), an octave switch (203), a lower thumb rest (211), a custom setting switch (204), a display screen (205), function buttons (206), a power switch (207), and a lower speaker grille (209); in: The main body (1) includes an upper shell (2) and a lower shell (4). It is a new type of musical instrument without a mouthpiece, which removes the mouthpiece of the electric wind instrument. It uses a pressure-sensitive note name button (3a) instead of a mouthpiece. The note name button (3a) is equipped with a force sensor to sense the force of the player pressing the button. The microprocessor (601) adjusts the volume, timbre and other parameters of the musical tone according to the signal of the force sensor. The note name button (3a) consists of multiple buttons, namely the upper left index finger button (101L), the upper middle finger button (102), the upper ring finger button (103), the upper left little finger button (104L), the lower right index finger button (105R), the lower middle finger button (106), the lower ring finger button (107), the lower right little finger button (108R), the upper right index finger button (101R), the upper right little finger button (104R), the lower left index finger button (105L), and the lower left little finger button (108L). The upper housing (2) has a panel button (3) in its panel. The panel button (3) includes a note name button (3a) and an auxiliary button (3b). Except for the note name button (3a), the other buttons are auxiliary buttons (3b). The bottom plate of the lower housing (4) is equipped with a sound sensor (201), an upper speaker grille (208), a voice microphone (202), an upper thumb rest (210), an octave switch (203), a lower thumb rest (211), a custom setting switch (204), a display screen (205), a function button (206), a power switch (207), and a lower speaker grille (209); The note name button (3a) provides layouts for left and right hand modes. The left index finger and little finger and the right index finger and little finger are specially equipped with double buttons in two rows. There are corresponding fixed buttons for both the left and right hands. The buttons for the left index finger and little finger are located on the left side, and the buttons for the right index finger and little finger are located on the right side. The two modes can be set using the custom setting switch (204) as needed. The upper housing (2) is equipped with a button circuit board (401). The front of the button circuit board (401) is equipped with a panel button (3) and a force sensor (402). The button head of the panel button (3) extends from the button hole of the upper housing (2) to the panel surface. The lower housing (4) contains a control circuit board (411), an upper speaker base (413), and a lower speaker base (414). The upper speaker base (413) is located in the upper part of the lower housing (4), and the lower speaker base (414) is located in the lower part of the lower housing (4). The lower housing (4) also contains a sound sensor board (412). A sound sensor (201) is mounted on the sound sensor board (412) and connected to the audio input terminal of the control circuit board (411) via a lead wire. The button circuit board (401) is connected to the control circuit board (411) via a connecting cable (418). The button circuit board (401) is equipped with a button board wire socket (403), and the control circuit board (411) is equipped with an input cable socket (417). The button circuit board (401) is connected to the control circuit board (411) via the button board wire socket (403) and the input cable socket (417). The circuits in the control circuit board (411) mainly include a microprocessor (601), a musical instrument circuit (602), a musical instrument chip (603), a left power amplifier (604L), a right power amplifier (604R), a Bluetooth module (605), a voice recognition circuit (606), a WiFi module (607), and a power supply module (608), as well as a sound sensor (201), a voice microphone (202), an octave switch (203), a custom setting switch (204), a display screen (205), function buttons (206), and an input cable socket (417); among them, the musical instrument circuit (602) includes a musical instrument chip (603), a left power amplifier (604L), a right power amplifier (604R), and a sound sensor (201); The karaoke function is implemented by a combination of a microprocessor (601), a custom setting switch (204), a function button (206), a musical instrument circuit (602), a musical instrument chip (603), a sound sensor (201), a sound sensor socket J4, a left power amplifier (604L), a right power amplifier (604R), an upper speaker (415), a lower speaker (416), a Bluetooth module (605), and a voice recognition circuit (606) in the control circuit. The function mapping table is created to store data on the relationship between buttons and voice commands and their corresponding functions. This data is stored in the flash memory inside the microprocessor (601). At the same time, the permission to modify the function mapping table is opened to the outside world. The custom setting switch (204) is used to set the functions corresponding to the buttons and voice commands, so as to realize the personalized setting of the functions of buttons and voice commands. The main body (1) of the refined version includes panel buttons (3), right side (6) and top of the main body (501).

2. The novel electric instrument tube according to claim 1, characterized in that, The bottom plate of the lower housing (4) is provided with a sound sensor (201) at the top, an upper speaker grille (208) below the sound sensor (201), a voice microphone (202) below the upper speaker grille (208), an upper thumb rest (210) below the voice microphone (202), an octave switch (203) below the upper thumb rest (210), a lower thumb rest (211) below the octave switch (203), a custom setting switch (204) below the lower thumb rest (211), a display screen (205) below the custom setting switch (204), a function button (206) below the display screen (205), a power switch (207) below the function button (206), and a lower speaker grille (209) below the power switch (207). Among them, the function button (206) includes multiple buttons, at least two are required, the upper thumb support (210) and the lower thumb support (211) form a double thumb support structure, making the operation more stable, and the upper speaker grille (208) and the interior of the upper speaker grille (208) are respectively equipped with speakers; In addition to mechanical contact switches, membrane switches or touch switches can be installed on the bottom plate surface of the lower housing (4) to replace the switches.

3. The novel electric instrument tube according to claim 1, characterized in that, The note name button (3a) has the following left-hand mode: left hand on top, right hand on bottom, and right-hand mode: right hand on top, left hand on bottom. Regardless of whether it is left-hand or right-hand mode, the left index finger and little finger use the left-hand button, and the right index finger and little finger use the right-hand button. The four buttons located in the middle column for the middle and ring fingers: upper middle finger button (102), upper ring finger button (103), lower middle finger button (106), and lower ring finger button (107) are shared by both hands and both hands need to use them, making it more convenient for users with different left and right hand habits to play. The layout of the note name button (3a) and the corresponding finger positions; Left hand on top mode: The left-hand note name button (3a) corresponds to the following fingers: The upper left index finger button (101L) is the left hand index finger note name button, the upper middle finger button (102) is the left hand middle finger note name button, the upper ring finger button (103) is the left hand ring finger note name button, and the upper left little finger button (104L) is the left hand little finger note name button. The right-hand note name button (3a) corresponds to the following fingers: The lower right index finger button (105R) is the right index finger note name button, the lower middle finger button (106) is the right middle finger note name button, the lower ring finger button (107) is the right ring finger note name button, and the lower right little finger button (108R) is the right little finger note name button. When the left hand is on top, the four note name buttons in the "right hand on top" mode—the upper right index finger button (101R), the upper right little finger button (104R), the lower left index finger button (105L), and the lower left little finger button (108L)—also serve as auxiliary buttons (3b). Right-hand-on-top mode: The right-hand note name button (3a) corresponds to the following fingers: The upper right index finger button (101R) is the right index finger note name button, the upper middle finger button (102) is the right middle finger note name button, the upper ring finger button (103) is the right ring finger note name button, and the upper right little finger button (104R) is the right little finger note name button. The left-hand note name button (3a) corresponds to the following fingers: The lower left index finger button (105L) is the left hand index finger note name button, the lower middle finger button (106) is the left hand middle finger note name button, the lower ring finger button (107) is the left hand ring finger note name button, and the lower left little finger button (108L) is the left hand little finger note name button. When the right hand is on top, the four note name buttons in the "left hand on top" mode—the upper left index finger button (101L), the upper left little finger button (104L), the lower right index finger button (105R), and the lower right little finger button (108R)—also serve as auxiliary buttons (3b).

4. The novel electric instrument tube according to claim 1, characterized in that, The note name button (3a) is equipped with fingerings for various instruments such as wind instruments and flutes. The custom setting switch (204) is used to switch between them. The default is the simplest fingering for beginners: index finger note name "C", middle finger note name "D", ring finger note name "E", little finger note name "F", index finger note name "G", middle finger note name "A", and ring finger note name "B". Its auxiliary buttons (3b) include tone- (121), tone+ (122), lower half tone (123), raise half tone (124), lower half tone (125), raise half tone (126), accompaniment selection- (127), and accompaniment selection+ (128). The functions of the auxiliary buttons (3b) can be customized as needed.

5. The novel electric instrument tube according to claim 1, characterized in that, The button board wire socket (403) on the button circuit board (401) is installed on the reverse side of the button circuit board (401), and the output wire of each button of the panel button (3) is connected to the pin of the button board wire socket (403); The note name button (3a) in the panel button (3) is equipped with a force sensor (402). The force sensor (402) is installed at the bottom of the note name button (3a). The force sensor (402) senses the force of pressing the button. The auxiliary button (3b) in the panel button (3) is a switch button without a force sensor (402). The output line of each button (3a) and auxiliary button (3b) is connected to each pin of the button board wire socket (403) in a one-to-one connection manner. Among them, the tone name button (3a) is a set of multiple buttons composed of force sensors, with at least 4 sets. Each set of buttons is equipped with a force sensor, which is installed on the button circuit board (401). A button is installed above each force sensor. The force sensor is at the bottom of the button. An elastic buffer medium is installed between the force sensor and the button. The buffer medium can be a material with elasticity such as silicone, rubber, plastic or spring. When the button is pressed, it plays a buffering role, reducing the impact and damage to the force sensor and extending its service life. Among them, the note name button (3a) consists of 12 groups of buttons. The buttons have no switch contacts and are contactless switches. When the output signal of the force sensor is higher than the threshold voltage, the button is activated. The magnitude and change of the signal are used to control the pitch of the music or to produce special sound effects such as pitch bend, glissando, or vibrato. Another implementation method for the note name buttons: The force sensor (402) can be installed not only below each button in the note name buttons (3a), but also below the button circuit board (401) to sense the pressure transmitted through the button circuit board (401) when the note name button (3a) is pressed. Four force sensors or sensors that can sense vibration or sound are used, with at least two used. The feature of this scheme is that only a small number of force sensors are used as common ones, which reduces the number of force sensors and makes the structure simpler.

6. The novel electric instrument tube according to claim 1, characterized in that, The control circuit board (411) is equipped with an octave switch (203), a custom setting switch (204), a display screen (205), function buttons (206), a power switch (207), an input cable socket (417), and a control circuit. The octave switch (203) is located at the top of the control circuit board (411), the custom setting switch (204) is located in the middle of the control circuit board (411), the display screen (205) is located below the custom setting switch (204), the function button (206) is located below the display screen (205), and the power switch (207) is located below the function button (206). Among them, an octave switch (203) and a custom setting switch (204) are provided for controlling the upper and lower octaves of pitch. If the custom setting switch (204) is not used frequently, it can be set to a switch with the same function as the octave switch (203) and used as a second octave switch. Both hands can flexibly control the octave pitch. Using two octave pitch switches enhances the stability, convenience and flexibility of octave pitch control. The input cable socket (417) is located on the upper part of the front of the control circuit board (411). The control circuit is installed on the front and back of the control circuit board (411). The IO input terminal and the AD conversion circuit input terminal of the control circuit are connected to the input cable socket (417). The input cable socket (417) is connected to the button board cable socket (403) of the button circuit board (401) through the connecting cable (418). Among them, the octave switch (203) and the custom setting switch (204) are 5-position switches, and at least 2-position switches are fixed on the reverse side of the control circuit board (411). The head of the switch extends from the bottom switch hole inside the lower housing (4) to the surface of the bottom plate of the lower housing (4). The function button (206) consists of multiple push-button switches, which are fixed on the back of the control circuit board (411). The switch head extends out from the switch hole of the bottom plate of the lower housing (4). The power switch (207) is fixed on the back of the control circuit board (411), with the switch head extending out from the switch hole of the bottom plate of the lower housing (4). The display screen (205) is fixed on the back of the control circuit board (411) through a socket and is embedded in the display screen opening on the back of the control circuit board (411). In addition to mechanical contact switches, the switches installed in the control circuit board (411) can also be membrane switches or touch switches installed on the surface of the bottom plate of the lower housing (4). The switch leads are connected to the control circuit board (411) through sockets. The panel button (3) in the button circuit board (401) contains a force sensor (402) whose lead is connected to the control circuit board (411) through a plug socket. It is connected one-to-one with the IO input terminal and AD conversion input terminal of the control circuit. Each switch or force sensor lead is connected one-to-one to the unique input terminal of the control circuit board (411). Each input signal occupies one IO input or AD conversion input interface.

7. The novel electric instrument tube according to claim 1, characterized in that, The microprocessor (601) in the control circuit board (411) is connected to the input cable socket (417), octave switch (203), custom setting switch (204), function button (206), display screen (205), musical instrument circuit (602), musical instrument chip (603), Bluetooth module (605), voice recognition circuit (606), WiFi module (607), power module (608) and download socket JP2; The main pins for connecting the microprocessor (601) to external circuits are USART1_TX, USART1_RX, USART2_TX, USART3_TX, USART3_RX, UART4_TX, UART4_RX, PD_OUT, PE12, PE13, PE14, PE15, PB12, PB13, P_SD, Keys-206, Keys-203, Keys-204, AD0_IN-AD11_IN, and IN1-IN8; The microprocessor (601) has its USART2_TX transmitter connected to the MIDI IN input of the instrument chip (603) in the instrument circuit (602). The instrument chip (603) has its MIDI IN input... IN is connected to a pull-up resistor R40, and the other end of the pull-up resistor R40 is connected to the positive terminal of the power supply. The left channel audio output terminal AUDIO_L of the instrument chip (603) is connected to the input terminal IN_L of the left power amplifier (604L) and the input terminal IN_L of the Bluetooth module (605). The right channel audio output terminal AUDIO_R of the instrument chip (603) is connected to the input terminal IN_R of the right power amplifier (604R) and the input terminal IN_R of the Bluetooth module (605). The P_SD output terminal of the microprocessor (601) is connected to the enable terminal SD of the left power amplifier (604L) and the right power amplifier (604R) to control the enable or disable of the left power amplifier (604L) and the right power amplifier (604R). The AOUT output terminal of the left power amplifier (604L) is connected to the upper speaker (415), and the AOUT output terminal of the right power amplifier (604R) is connected to the lower speaker (416). The MICIN microphone input of the instrument chip (603) is connected to the sound sensor (201) and the sound sensor socket J4, respectively. The microprocessor (601) receives the start signal from the function button (206) or voice command and sends it to the MIDI input of the instrument chip (603) in the instrument circuit (602) through the USART2_TX terminal. The IN input terminal sends MIDI messages to control the instrument chip (603) to enable karaoke functions such as microphone input, microphone echo, input amplifier, and equalizer, as well as their parameter configuration. The function button (206) has start buttons and parameter adjustment buttons related to karaoke, such as start / stop, echo, and stereo equalizer. The singing sound is output from the built-in sound sensor (201) or an external microphone inserted through the sound sensor socket J4 to the MICIN microphone input terminal of the instrument chip (603). The audio signal is amplified by the input amplifier inside the instrument chip (603) and output from the left channel audio output terminal AUDIO_L and the right channel audio output terminal AUDIO_R to the left power amplifier (604L) and the right power amplifier (604R) respectively, which then drive the upper speaker (415) and the lower speaker (416) to emit the singing sound, or the instrument chip (603) outputs the audio signal to the Bluetooth module (605) to send it to the external speaker. Among them, the function button (206) has 3 equalizer adjustment buttons. Long press to enhance, short press to reduce, and adjust the low frequency, mid frequency and high frequency of the audio respectively. The equalizer works for both karaoke or music signals. Among them, the instrument chip (603) is model SAM2695, and can also use SAM5000 series models such as SAM5704 or SAM5916, as well as more advanced chips.

8. The novel electric instrument tube according to claim 1, characterized in that, The circuit of the note name button (3a) in the panel button (3) is a button composed of a force sensor (402) and an operational amplifier circuit. Each button is equipped with a force sensor (402) to form a group of buttons. The note name button (3a) includes multiple groups of buttons, with at least 4 groups used. The circuit and structure of each group of buttons are the same. Multiple groups of buttons form the note name button (3a). The button circuit is equipped with a sensor B1. One end of the sensor B1 is connected to the analog ground line AGND, and the other end is connected to the pull-up resistor R1 and the positive input terminal of the operational amplifier OPA1. The negative terminal of the operational amplifier is connected to the input resistor R13 and the negative feedback resistor R25. The other end of R13 is connected to the analog ground line AGND, and the other end of R25 is connected to the output terminal of the operational amplifier OPA1. The output terminal of the operational amplifier is connected to the pin of the button board wire socket (403). Its output terminal is connected to different pins in the button board wire socket (403) in a one-to-one manner. The auxiliary buttons (3b) in the panel button (3) are push button switches with contacts. There are a total of 8, with at least 2 used. Each push button switch of the auxiliary buttons (3b) is connected to a different pin of the button panel wire socket (403) in a one-to-one manner.

9. The novel electric instrument tube according to claim 1, characterized in that, The custom settings of the function correspondence table are achieved by using the custom settings switch (204) and the display screen (205) to operate the button functions and voice command functions in the function correspondence table, modify the correspondence between the note name button (3a), auxiliary button (3b), function button (206) and voice command and their respective functions, change their corresponding function options, and store them in the flash memory inside the microprocessor (601), thereby realizing the personalized custom settings of the electric instrument tube; When playing, when the button in the note name button (3a) is pressed, the microprocessor (601) extracts the note name corresponding to the button in the function correspondence table, and determines the volume and pitch of the current note name according to the velocity data of the note name button (3a) and the state of the octave switch (203) or the custom setting switch (204), converts it into the corresponding MIDI message code, and sends it to the instrument chip (603) in the instrument circuit (602) through the MIDI interface communication method to generate musical tone signals; Voice commands can also be used to replace the custom setting switch (204) for operation. During the setting process, the voice microphone (202) converts the received voice command into an electrical signal and sends it to the voice recognition circuit (606) for voice recognition. The voice recognition circuit (606) transmits the recognized command result data to the microprocessor (601) via SPI interface communication. The microprocessor (601) controls the display screen (205) through the serial port to display the voice operation command. After the setting is completed and exited, the microprocessor (601) stores the voice command setting data in the internal flash.

10. The novel electric instrument tube according to claim 1, characterized in that, The top (501) of the electric instrument tube body (1) is flat or dome-shaped and is a mouthpiece-less structure without a mouthpiece. The lower speaker base (414) inside the lower housing (4) of the main body (1) is one of the two speaker bases provided inside the lower housing 4. They have the same structure. The lower speaker base (414) includes an outer ring (511), an inner ring step (512), a fixing post (513), a fixing hole (514), an inner mesh cover (515), and a frame (516). Among them, the outer ring of the base (511) is the outer thickened platform of the base, the inner ring step (512) is a recessed step inside the outer ring of the base (511), which can position, seal and dampen the speaker. The four fixing posts (513) are located at the four corners of the outer ring of the base (511) and are integrated with the outer ring of the base (511). This structure makes the outer ring of the base (511) thickened and reinforced and easy to resist vibration. The fixing post (513) has a fixing hole (514) in the center, and the speaker frame (516) is fixed with screws. The fixing post (513) is a thickened structure, and the screw fixing frame (516) is not easy to crack. The inner mesh cover (515) is the inner mesh cover of the speaker base (414). The shape of the inner mesh cover (515) can be flat or protruding outward. The basket (516) is the mounting bracket for the loudspeaker itself. The one shown in the figure is a square basket. This structure is convenient and sturdy for square baskets, and it is also suitable for loudspeakers with round baskets. The top of the main body (501) of the refined version is on the top of the main body (1). The top is a structure without a mouthpiece. The main body (1) of the refined version has a smaller volume, and the length, width and height of the main body (1) are reduced. The size of the lower speaker (416) is reduced, making the lower part of the main body (1) narrower, the overall weight lighter, the lines more natural and smooth, and it is more compact and easier to carry. The structure and layout of the note name button (3a) have been slightly changed. The distance between the upper and lower hands is increased to the distance between two buttons, and the number of auxiliary buttons (3b) is reduced to 4.

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