An electric piano timbre dynamic adjustment processor

Abstract

The present invention discloses an electric piano tone dynamic adjustment processor, which relates to the technical field of electric piano processors. It includes a protective shell, a sound generation circuit, an audio processing circuit, and a heat dissipation and waterproof mechanism. The sound generation circuit is fixedly connected to the rear inside of the protective shell, and the audio processing circuit is fixedly connected to the front inside of the protective shell. By setting the sound generation circuit, after filtering the signal and sending it to the capacitor and inductor, the frequency of the clock signal is adjusted, thereby changing the frequency and duty cycle of the pulse signal, and to a certain extent, realizing the dynamic adjustment of the electric piano tone. By setting the pneumatic adjustment component, the tone of the buzzer piece is adjusted by adjusting the orifice size of the connecting pipe, improving the musical expressiveness of the electric piano, enabling it to play notes of different pitches, meeting the needs of music creation and performance, and through the combination of the sound generation circuit and the pneumatic adjustment component, while maintaining the natural tone, a fast dynamic response is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric piano processors, and specifically to an electric piano tone dynamic adjustment processor. Background Art

[0002] A piano tone dynamic adjustment processor is an electronic device specifically used for adjusting and controlling the tones of an electric piano. It can process the audio signals generated by the electric piano to improve the tone quality, expressiveness, and user experience.

[0003] When the existing electric piano tone dynamic adjustment processors are in use, it is relatively difficult to adjust the frequency of the clock signal and change the frequency and duty cycle of the pulse signal, so it is relatively difficult to achieve the dynamic adjustment of the electric piano tones to a certain extent, and the practicality is relatively single; when the existing electric piano tone dynamic adjustment processors are in use, it is relatively difficult to change the vibration frequency of the buzzer piece, resulting in poor musical expressiveness of the electric piano, and it is relatively difficult to play notes of different pitches, so it is relatively difficult to meet the needs of music creation and performance and achieve fast dynamic response while maintaining the natural tone;

[0004] In addition: when the existing electric piano tone dynamic adjustment processors are in use, it is relatively difficult to improve the tone quality, expressiveness, and user experience of the electric piano, and the practicality is relatively single;

[0005] Finally: when the existing electric piano tone dynamic adjustment processors are in use, it is relatively difficult to reduce the electrical signal delay caused by data waiting time, and at the same time it is relatively difficult to strengthen and correct the electrical signal to ensure the integrity of data during transmission between various components. It is relatively difficult to perform heat dissipation and waterproof treatment on the processor in the prior art, and the practicality is relatively single. Summary of the Invention

[0006] Therefore, to solve the above deficiencies, the present invention provides an electric piano tone dynamic adjustment processor herein.

[0007] The present invention is implemented as follows. An electric piano tone dynamic adjustment processor is constructed. The device includes a protective shell. A sound generating circuit is fixedly connected to the rear inside of the protective shell. An audio processing circuit is fixedly connected to the front inside of the protective shell. A heat dissipation and waterproof mechanism is fixedly connected to the right end of the top of the protective shell;

[0008] The sound - generating circuit includes a first PCB board. A first PCB board is fixedly connected to the rear inside of the protective shell. An oscillator chip is soldered and fixed to the lower right front of the first PCB board. A frequency divider is soldered and fixed above the center of the front of the first PCB board. A first filter is soldered and fixed to the lower left front of the first PCB board. A capacitor is soldered and fixed to the lower left front of the first PCB board. An inductor is soldered and fixed to the lower right front of the first PCB board. A first micro - controller is soldered and fixed to the upper left front of the first PCB board. A pneumatic adjusting member is soldered and fixed to the upper right front of the first PCB board. Among them, the capacitor is arranged below the first filter, and the inductor is arranged on the right side of the oscillator chip.

[0009] Preferably, the pneumatic adjusting member includes a piston cylinder. A piston cylinder is soldered and fixed to the upper right front of the first PCB board. The front end of the piston cylinder is slidably connected to the outer wall of the piston rod. A buzzer piece is fixedly connected to the front end of the piston rod. A connecting pipe is fixedly connected to the right end of the piston cylinder. A connecting plate is fixedly connected to the right end of the connecting pipe. An electromagnetic groove is provided above the right of the connecting plate. The electromagnetic groove is slidably connected to the inner gear plate of the gear - tooth plate member. A gear is meshed with the bottom of the inner gear of the gear - tooth plate member. Five rotating rods are rotatably connected to the right end of the gear. The left end of the rotating rod is rotatably connected to the right end of the opening - closing block. The right end of the opening - closing block is rotatably connected to the left end of the connecting ring.

[0010] Preferably, the audio - processing circuit includes a second PCB board. A second PCB board is fixedly connected to the front inside of the protective shell. An audio - processing chip is soldered and fixed to the lower left front of the second PCB board. A memory is soldered and fixed to the center of the front of the second PCB board. An analog - to - digital converter is soldered and fixed to the lower right front of the second PCB board. A first amplifier is soldered and fixed to the lower right front of the second PCB board, and the first amplifier is arranged below the analog - to - digital converter. A second filter is soldered and fixed to the lower left front of the second PCB board. A CPU is soldered and fixed to the lower left front of the second PCB board. A detection circuit is soldered and fixed to the upper right front of the second PCB board.

[0011] Preferably, the detection circuit includes a current sensor. A current sensor is soldered and fixed to the upper right front of the second PCB board. A voltage sensor is soldered and fixed to the upper left front of the second PCB board. A second micro - controller is soldered and fixed to the upper left front of the second PCB board. A clock generator is soldered and fixed to the upper left front of the second PCB board. A cache is soldered and fixed to the upper left front of the second PCB board, and the cache is arranged on the left side of the voltage sensor. A power - management chip is soldered and fixed above the center of the front of the second PCB board. A second amplifier is soldered and fixed to the upper left front of the second PCB board, and the second amplifier is arranged on the left side of the cache. An error - correction code circuit is soldered and fixed to the upper right front of the second PCB board.

[0012] Preferably, the heat dissipation and waterproof mechanism includes a micro cylinder. The right end of the top of the protective shell is fixedly connected with a micro cylinder. The bottom right end of the push rod at the right end of the micro cylinder is fixedly connected with a fixed rod. The bottom of the fixed rod is fixedly connected with a sealing plug. There are five groups of sealing plugs, and the five groups of sealing plugs are fixedly connected by a mounting rod. The bottom of the sealing plug is fixedly connected with a moving rod. The bottom of the moving rod is fixedly connected with a telescopic rod, and the left end of the top of the telescopic rod is fixedly connected with the bottom right end of the protective shell. The right end of the protective shell is provided with a ventilation hole, and the ventilation hole is fixedly connected with the sealing plug in an inserted manner.

[0013] Preferably, the electromagnetic slot is composed of a chute arranged at the upper right end of the connecting plate and fifteen electromagnetic blocks fixedly connected in the chute, and the electromagnetic blocks are electrically connected to an external current output device.

[0014] Preferably, the chute in the electromagnetic slot is slidably connected with the inner tooth plate of the gear and tooth plate part, and the electromagnetic block in the electromagnetic slot is magnetically adsorbed with the inner tooth plate of the gear and tooth plate part.

[0015] Preferably, the left end of the inner gear of the gear and tooth plate part is rotatably connected with the upper right end of the connecting plate, the left end of the gear is slidably connected with the right end of the connecting plate, and the center of the connecting plate is hollow.

[0016] Preferably, the second filter is arranged to the left of the audio processing chip, and the CPU is arranged below the second filter.

[0017] Preferably, the second microcontroller is arranged at the lower right of the voltage sensor, the clock generator is arranged to the left of the second microcontroller, and the error correction code circuit is arranged at the lower right of the current sensor.

[0018] The present invention has the following advantages: The present invention provides an electric piano tone dynamic adjustment processor by improvement. Compared with the same type of equipment, the following improvements are made:

[0019] The electro-piano timbre dynamic adjustment processor described in the present invention is provided with a sound generation circuit. By sending the filtered signal to a capacitor and an inductor, the frequency of the clock signal is adjusted, thereby changing the frequency and duty cycle of the pulse signal, and realizing the dynamic adjustment of the electro-piano timbre to a certain extent. A pneumatic adjustment component is provided. By adjusting the orifice size of the connecting pipe, the pitch of the buzzer sheet is adjusted, improving the musical expressiveness of the electro-piano, enabling it to play notes of different pitches, meeting the needs of music creation and performance, and combining the sound generation circuit with the pneumatic adjustment component to achieve fast dynamic response while maintaining the natural timbre. An audio processing circuit is provided. By comparing the characteristics of the currently played audio signal by the CPU, the most suitable timbre parameters are selected from the timbre database for adjustment, improving the timbre quality, expressiveness and user experience of the electro-piano. A detection circuit is provided. The high-speed cache is used to reduce the electrical signal delay caused by data waiting time, and then the electrical signal is strengthened through the second amplifier. Finally, the error correction code circuit ensures the integrity of the data during the transmission process between various components. A heat dissipation and waterproof mechanism is provided. The air flow is increased through the ventilation holes to take away the heat generated by the processor, and then five groups of sealing plugs are inserted into the ventilation holes to ensure the sealing performance of the protective shell and prevent moisture from entering and affecting the use of the processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic three-dimensional structure diagram of the protective shell of the present invention;

[0021] Figure 2 is a schematic three-dimensional structure diagram of the sound generation circuit of the present invention;

[0022] Figure 3 is a schematic three-dimensional structure diagram of the pneumatic adjustment component of the present invention;

[0023] Figure 4 is the present invention Figure 3 amplified structure diagram of part A in;

[0024] Figure 5 is the present invention Figure 3 amplified structure diagram of part B in;

[0025] Figure 6 is a schematic three-dimensional structure diagram of the audio processing circuit of the present invention;

[0026] Figure 7 is a schematic three-dimensional structure diagram of the detection circuit of the present invention.

[0027] Wherein: protective shell - 1, sound - generating circuit - 2, first PCB board - 21, oscillator chip - 22, frequency divider - 23, first filter - 24, capacitor - 25, inductor - 26, first micro - controller - 27, pneumatic regulating member - 28, piston cylinder - 281, piston rod - 282, buzzer sheet - 283, connecting pipe - 284, connecting plate - 285, electromagnetic slot - 286, gear - toothed plate member - 287, gear - 288, rotating rod - 289, opening - closing block - 2810, connecting ring - 2811, audio - processing circuit - 3, second PCB board - 31, audio - processing chip - 32, memory - 33, analog - to - digital converter - 34, first amplifier - 35, second filter - 36, CPU - 37, detection circuit - 38, current sensor - 381, voltage sensor - 382, second micro - controller - 383, clock generator - 384, cache - 385, power - management chip - 386, second amplifier - 387, error - correction code circuit - 388, heat - dissipation and waterproof mechanism - 4, micro - cylinder - 41, fixed rod - 42, sealing plug 43, mounting rod - 44, moving rod - 45, telescopic rod - 46, ventilation hole - 47. Detailed implementation manners

[0028] The following is combined with the attached Figures 1 to 7 The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non - precise scales, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to its overall structure.

[0031] Embodiment 1:

[0032] Please refer to Figures 1 to 2 , a dynamic adjustment processor for the timbre of an electric piano according to the present invention, comprising a protective case 1, a sound generation circuit 2 fixedly connected to the rear inside the protective case 1, an audio processing circuit 3 fixedly connected to the front inside the protective case 1, and a heat dissipation and waterproof mechanism 4 fixedly connected to the right end of the top of the protective case 1;

[0033] The sound generation circuit 2 includes a first PCB board 21, the first PCB board 21 is fixedly connected to the rear inside the protective case 1, and an oscillator chip 22 is soldered and fixed to the lower right front end of the first PCB board 21. The first PCB board 21 facilitates the installation and fixation of the oscillator chip 22.

[0034] A frequency divider 23 is soldered and fixed above the center of the front end of the first PCB board 21, a first filter 24 is soldered and fixed to the lower left front end of the first PCB board 21, a capacitor 25 is soldered and fixed to the lower left front end of the first PCB board 21, and the first filter 24 facilitates filtering the clock signal after passing through the frequency divider 23.

[0035] An inductor 26 is soldered and fixed to the lower right front end of the first PCB board 21, and a first microcontroller 27 is soldered and fixed to the upper left front end of the first PCB board 21. The first microcontroller 27 facilitates adjusting the frequency division coefficient of the frequency divider 23 and changing the resonance frequency of the circuit composed of the capacitor 25 and the inductor 26.

[0036] A pneumatic adjusting part 28 is soldered and fixed to the upper right front end of the first PCB board 21. The capacitor 25 is arranged below the first filter 24, and the inductor 26 is arranged on the right side of the oscillator chip 22.

[0037] The working principle of a dynamic adjustment processor for the timbre of an electric piano based on Embodiment 1 is as follows:

[0038] First, when using this device, first place this device in the working area, and then connect the device to an external power supply to provide the power required for the operation of this device;

[0039] Second, when the frequency divider 23, capacitor 25, and inductor 26 are in use, the frequency division coefficient of the frequency divider 23 is adjusted by the first microcontroller 27, and the resonant frequency of the circuit composed of the capacitor 25 and the inductor 26 is changed. When the digital piano is powered on, the oscillator chip 22 will start to work, generating a basic clock frequency. Then, the frequency divider 23 adjusts the output frequency by changing the frequency division coefficient, outputs the divided signal to the first filter 24, filters the clock signal after passing through the frequency divider 23 through the first filter 24, and then conveys the filtered signal to the capacitor 25 and the inductor 26, adjusts the frequency of the clock signal according to the values of the capacitance and inductance, thereby changing the frequency and duty cycle of the pulse signal, and realizing the dynamic adjustment of the digital piano tone to a certain extent.

[0040] Embodiment 2:

[0041] Please refer to Figures 3 to 5 , a dynamic tone adjustment processor for a digital piano according to the present invention. Compared with Embodiment 1, this embodiment further includes: a pneumatic adjustment member 28. The pneumatic adjustment member 28 includes a piston cylinder 281. The piston cylinder 281 is soldered and fixed to the upper right front end of the first PCB board 21. The front end of the piston cylinder 281 is slidably connected to the outer wall of the piston rod 282. The front end of the piston rod 282 is fixedly connected to a buzzer piece 283. The piston rod 282 facilitates the installation and fixation of the buzzer piece 283.

[0042] The right end of the piston cylinder 281 is fixedly connected to a connecting pipe 284. The right end of the connecting pipe 284 is fixedly connected to a connecting plate 285. An electromagnetic slot 286 is provided above the right upper part of the connecting plate 285. The electromagnetic slot 286 is slidably connected to the inner tooth plate of the gear and tooth plate member 287. The electromagnetic slot 286 facilitates driving the inner tooth plate of the gear and tooth plate member 287 to move.

[0043] The bottom of the inner gear of the gear and tooth plate member 287 meshes with a gear 288. The right end of the gear 288 is rotatably connected to five rotating rods 289. The left end of the rotating rod 289 is rotatably connected to the right end of the opening and closing block 2810. The right end of the opening and closing block 2810 is rotatably connected to the left end of the connecting ring 2811. The rotating rod 289 facilitates driving the opening and closing block 2810 to perform the opening and closing operation.

[0044] The electromagnetic slot 286 is composed of a chute provided at the upper right end of the connecting plate 285 and fifteen electromagnetic blocks fixedly connected in the chute, and the electromagnetic blocks are electrically connected to an external current output device. The chute in the electromagnetic slot 286 is slidably connected to the inner tooth plate of the gear and tooth plate member 287. The electromagnetic blocks in the electromagnetic slot 286 are magnetically adsorbed to the inner tooth plate of the gear and tooth plate member 287. The left end of the inner gear of the gear and tooth plate member 287 is rotatably connected to the upper right end of the connecting plate 285. The left end of the gear 288 is slidably connected to the right end of the connecting plate 285. The center of the connecting plate 285 is hollow.

[0045] In this embodiment:

[0046] When pneumatic adjustment is required, an external current output device drives the fifteen electromagnetic blocks in the electromagnetic slot 286 to be energized step by step, causing the internal toothed plate in the gear and toothed plate assembly 287 to move back and forth under the magnetic influence of the fifteen electromagnetic blocks in the electromagnetic slot 286. The internal toothed plate in the gear and toothed plate assembly 287 drives the gear in the gear and toothed plate assembly 287 to rotate. The gear in the gear and toothed plate assembly 287 drives the gear 288 to rotate. The gear 288 drives the five opening and closing blocks 2810 to rotate and open and close within the connecting ring 2811 through the rotational connection with the rotating rod 289, exposing the center of the connecting plate 285 to the outside, thereby adjusting the size of the nozzle of the connecting pipe 284. When the nozzle of the connecting pipe 284 becomes larger, the gas flow rate increases, and the vibration frequency of the buzzer piece 283 increases. Conversely, the vibration frequency of the buzzer piece 283 decreases. Furthermore, by adjusting the size of the nozzle of the connecting pipe 284, the pitch of the buzzer piece is adjusted, improving the musical expressiveness of the digital piano, enabling it to play notes of different pitches, meeting the needs of music creation and performance, and combining with the sound generation circuit 2 and the pneumatic adjustment member 28 to achieve fast dynamic response while maintaining the natural timbre.

[0047] Embodiment 3:

[0048] Please refer to Figure 6 , for a tone dynamic adjustment processor of a digital piano according to the present invention, compared with Embodiment 1, this embodiment further includes: an audio processing circuit 3. The audio processing circuit 3 includes a second PCB board 31. The second PCB board 31 is fixedly connected to the front of the protective shell 1. The audio processing chip 32 is soldered and fixed to the lower left front of the second PCB board 31. The second PCB board 31 facilitates the installation and fixation of the audio processing chip 32.

[0049] A memory 33 is soldered and fixed to the center of the front end of the second PCB board 31. An analog converter 34 is soldered and fixed to the lower right front of the second PCB board 31. A first amplifier 35 is soldered and fixed to the lower right front of the second PCB board 31, and the first amplifier 35 is disposed below the analog converter 34. The analog converter 34 facilitates converting the digital signal output by the audio processing chip 32 into an analog signal that the digital piano can recognize.

[0050] A second filter 36 is soldered and fixed to the lower left front of the second PCB board 31. A CPU 37 is soldered and fixed to the lower left front of the second PCB board 31. The CPU 37 facilitates performing all logical calculations and decisions and comparing the audio signal with the tone database of the digital piano stored in the memory 33.

[0051] A detection circuit 38 is soldered and fixed to the upper right front of the second PCB board 31. The second filter 36 is disposed to the left of the audio processing chip 32, and the CPU 37 is disposed below the second filter 36.

[0052] In this embodiment:

[0053] The staff stores the timbre database of the digital piano in the memory 33 in advance, then processes the audio signal generated by the digital piano through the audio processing chip 32, and then converts the digital signal output by the audio processing chip 32 into an analog signal recognizable by the digital piano through the analog converter 34. Then, the analog signal is amplified by the first amplifier 35 to achieve the proper volume and dynamic range of the digital piano. Further processing of the audio signal is performed through the second filter 36 to remove unwanted noise or adjust the spectral characteristics of the sound. Finally, all logical calculations and decisions are executed by the CPU 37, and the audio signal is compared with the timbre database of the digital piano stored in the memory 33. By comparing the characteristics of the currently played audio signal, the most suitable timbre parameters are selected from the timbre database for adjustment, improving the timbre quality, expressiveness, and user experience of the digital piano.

[0054] Embodiment 4:

[0055] Please refer to Figure 7 , for a digital piano timbre dynamic adjustment processor of the present invention, compared with Embodiment 1, this embodiment further includes: a detection circuit 38. The detection circuit 38 includes a current sensor 381. The current sensor 381 is soldered and fixed to the upper right front of the second PCB board 31. A voltage sensor 382 is soldered and fixed to the upper left front of the second PCB board 31. The current sensor 381 and the voltage sensor 382 are convenient for capturing the current and voltage changes triggered by the keys.

[0056] A second microcontroller 383 is soldered and fixed to the upper left front of the second PCB board 31. A clock generator 384 is soldered and fixed to the upper left front of the second PCB board 31. A cache 385 is soldered and fixed to the upper left front of the second PCB board 31, and the cache 385 is located on the left side of the voltage sensor 382. The clock generator 384 is convenient for providing a stable clock signal for the entire circuit.

[0057] A power management chip 386 is soldered and fixed to the upper center of the front end of the second PCB board 31. A second amplifier 387 is soldered and fixed to the upper left front of the second PCB board 31, and the second amplifier 387 is located on the left side of the cache 385. The second amplifier 387 is convenient for receiving the power supply optimized by the power management chip 386 and performing an amplification operation on the input electrical signal.

[0058] An error correction code circuit 388 is soldered and fixed to the upper right front of the second PCB board 31. The second microcontroller 383 is located below the right of the voltage sensor 382. The clock generator 384 is located to the left of the second microcontroller 383. The error correction code circuit 388 is located below the right of the current sensor 381.

[0059] In this embodiment:

[0060] First, the staff stores the frequently accessed data in the cache 385 in advance. When it is necessary to prevent the delay of the electrical signal, the current sensor 381 and the voltage sensor 382 capture the current and voltage changes triggered by the keys and transmit the relevant data to the second microcontroller 383. The second microcontroller 383 judges the working state of the circuit according to these data, and then provides a stable clock signal for the entire circuit through the clock generator 384. When there is data to be read or written, the cache 385 quickly completes the operation under the precise control of the clock signal, reducing the electrical signal delay caused by the data waiting time;

[0061] Second, when it is necessary to increase the electrical signal strength, the power management chip 386 provides a suitable power supply for the second amplifier 387. The second amplifier 387 receives the power supply optimized by the power management chip 386 and amplifies the input electrical signal to strengthen the electrical signal;

[0062] Third, when the current sensor 381 and the voltage sensor 382 transmit data to the second microcontroller 383, the error correction code circuit 388 always monitors the transmitted data. It encodes the data to be transmitted at the data sending end, adds error correction code information, and then decodes and checks at the receiving end. If it finds that the data is incorrect, it will try to correct it according to the error correction code, thus ensuring the integrity of the data during the transmission process between components.

[0063] Embodiment Five:

[0064] Please refer to Figure 1 , a tone dynamic adjustment processor for an electric piano according to the present invention. Compared with Embodiment One, this embodiment further includes: a heat dissipation and waterproof mechanism 4. The heat dissipation and waterproof mechanism 4 includes a micro cylinder 41. The top right end of the protective shell 1 is fixedly connected with the micro cylinder 41. The bottom right end of the push rod of the micro cylinder 41 is fixedly connected with a fixed rod 42. The micro cylinder 41 is convenient for driving the fixed rod 42 to move.

[0065] The bottom of the fixed rod 42 is fixedly connected with a sealing plug 43. There are five groups of the sealing plugs 43, and the five groups of sealing plugs 43 are fixedly connected by an installation rod 44. The bottom of the sealing plug 43 is fixedly connected with a moving rod 45. The installation rod 44 is convenient for driving the sealing plug 43 to move.

[0066] The bottom of the moving rod 45 is fixedly connected with a telescopic rod 46, and the left end of the top of the telescopic rod 46 is fixedly connected with the bottom right end of the protective shell 1. The right end of the protective shell 1 is provided with a ventilation hole 47, and the ventilation hole 47 is inserted and fixed with the sealing plug 43.

[0067] In this embodiment:

[0068] When the protective case 1 is in use, air flow is increased through the ventilation holes 47 to carry away the heat generated by the processor. When encountering humid weather, the micro cylinder 41 is activated. The micro cylinder 41 drives the fixed rod 42 to move leftward. The fixed rod 42 drives five groups of sealing plugs 43 to move leftward through the mounting rod 44. At this time, the telescopic rod 46 contracts, causing the five groups of sealing plugs 43 to insert into the ventilation holes 47 to ensure the sealing of the protective case 1 and prevent moisture from entering and affecting the use of the processor.

[0069] Through improvement, the present invention provides an electric piano tone dynamic adjustment processor. A sound generating circuit 2 is set up. By sending the filtered signal to the capacitor 25 and the inductor 26, the frequency of the clock signal is adjusted, thereby changing the frequency and duty cycle of the pulse signal, and to a certain extent realizing the dynamic adjustment of the electric piano tone. A pneumatic adjustment member 28 is set up. By adjusting the orifice size of the connecting pipe 284, the tone of the buzzer sheet is adjusted, improving the musical expressiveness of the electric piano, enabling it to play notes of different pitches, meeting the needs of music creation and performance, and combining the sound generating circuit 2 with the pneumatic adjustment member 28 to achieve fast dynamic response while maintaining the natural tone. An audio processing circuit 3 is set up. By the CPU 37 comparing the characteristics of the currently played audio signal, the most suitable tone parameters are selected from the tone database for adjustment, improving the tone quality, expressiveness and user experience of the electric piano. A detection circuit 38 is set up. The cache 385 is used to reduce the electrical signal delay caused by data waiting time, and then the second amplifier 387 is used to strengthen the electrical signal. Finally, the error correction code circuit 388 ensures the integrity of the data during the transmission process between various components. A heat dissipation and waterproof mechanism 4 is set up. Air flow is increased through the ventilation holes 47 to carry away the heat generated by the processor, and then five groups of sealing plugs 43 are inserted into the ventilation holes 47 to ensure the sealing of the protective case 1 and prevent moisture from entering and affecting the use of the processor.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described herein again.

[0071] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A processor for dynamically adjusting the tone of an electric piano, comprising a protective shell (1), a sound generating circuit (2) being fixedly connected to the rear of the protective shell (1), an audio processing circuit (3) being fixedly connected to the front of the protective shell (1), and a heat dissipation and waterproof mechanism (4) being fixedly connected to the top right end of the protective shell (1); Features: The sound-generating circuit (2) comprises a first PCB board (21), the first PCB board (21) is fixedly connected to the rear of the protective shell (1), an oscillator chip (22) is fixed by soldering at the lower right of the front end of the first PCB board (21), a frequency divider (23) is fixed by soldering at the upper center of the front end of the first PCB board (21), a first filter (24) is fixed by soldering at the lower left of the front end of the first PCB board (21), a capacitor (25) is fixed by soldering at the lower left of the front end of the first PCB board (21), an inductor (26) is fixed by soldering at the lower right of the front end of the first PCB board (21), a first microcontroller (27) is fixed by soldering at the upper left of the front end of the first PCB board (21), and a pneumatic adjustment component (28) is fixed by soldering at the upper right of the front end of the first PCB board (21), wherein the capacitor (25) is arranged below the first filter (24), and the inductor (26) is arranged on the right side of the oscillator chip (22); The pneumatic adjustment member (28) comprises a piston cylinder (281), the piston cylinder (281) being fixed by soldering at the upper right of the front end of the first PCB board (21), the front end of the piston cylinder (281) being slidably connected to the outer wall of a piston rod (282), the front end of the piston rod (282) being fixedly connected to a buzzer (283), the right end of the piston cylinder (281) being fixedly connected to a connecting pipe (284), the right end of the connecting pipe (284) being fixedly connected to a connecting plate (285), the connecting An electromagnetic slot (286) is provided at the upper right of the plate (285), and the electromagnetic slot (286) is slidably connected to the inner gear plate of the gear tooth plate member (287). A gear (288) is meshed at the bottom of the inner gear of the gear tooth plate member (287). The right end of the gear (288) is rotatably connected to five groups of rotating rods (289). The left end of the rotating rod (289) is rotatably connected to the right end of the opening and closing block (2810), and the right end of the opening and closing block (2810) is rotatably connected to the left end of the connecting ring (2811).

2. The digital piano tone dynamic adjustment processor according to claim 1, characterized in that: The audio processing circuit (3) comprises a second PCB board (31), the second PCB board (31) is fixedly connected to the front of the protective shell (1), an audio processing chip (32) is soldered to the lower left of the front end of the second PCB board (31), a memory (33) is soldered to the center of the front end of the second PCB board (31), an analog converter (34) is soldered to the lower right of the front end of the second PCB board (31), a first amplifier (35) is soldered to the lower right of the front end of the second PCB board (31), and the first amplifier (35) is arranged below the analog converter (34), a second filter (36) is soldered to the lower left of the front end of the second PCB board (31), a CPU (37) is soldered to the lower left of the front end of the second PCB board (31), and a detection circuit (38) is soldered to the upper right of the front end of the second PCB board (31).

3. The digital piano tone dynamic adjustment processor according to claim 2, characterized in that: The detection circuit (38) comprises a current sensor (381); a current sensor (381) is fixed by soldering at the upper right of the front end of the second PCB board (31); a voltage sensor (382) is fixed by soldering at the upper left of the front end of the second PCB board (31); a second microcontroller (383) is fixed by soldering at the upper left of the front end of the second PCB board (31); a clock generator (384) is fixed by soldering at the upper left of the front end of the second PCB board (31); a high-speed cache (385) is fixed by soldering at the upper left of the front end of the second PCB board (31), and the high-speed cache (385) is arranged on the left side of the voltage sensor (382); a power management chip (386) is fixed by soldering at the upper center of the front end of the second PCB board (31); a second amplifier (387) is fixed by soldering at the upper left of the front end of the second PCB board (31), and the second amplifier (387) is arranged on the left side of the high-speed cache (385); and an error correction code circuit (388) is fixed by soldering at the upper right of the front end of the second PCB board (31).

4. The digital piano tone dynamic adjustment processor according to claim 3, characterized in that: The heat dissipation and waterproof mechanism (4) comprises a micro cylinder (41), the top right end of the protective shell (1) is fixedly connected to the micro cylinder (41), the bottom right end of the push rod at the right end of the micro cylinder (41) is fixedly connected to a fixing rod (42), the bottom of the fixing rod (42) is fixedly connected to a sealing plug (43), the sealing plug (43) is provided with five groups, and the five groups of sealing plugs (43) are fixedly connected by a mounting rod (44), the bottom of the sealing plug (43) is fixedly connected to a moving rod (45), the bottom of the moving rod (45) is fixedly connected to a telescopic rod (46), and the top left end of the telescopic rod (46) is fixedly connected to the bottom right end of the protective shell (1), and the right end of the protective shell (1) is provided with an air vent (47), and the air vent (47) is plugged and fixed to the sealing plug (43).

5. The digital piano tone dynamic adjustment processor according to claim 4, characterized in that: The electromagnetic slot (286) is composed of a slide slot provided at the upper right end of the connecting plate (285), and fifteen groups of electromagnetic blocks fixedly connected in the slide slot, and the electromagnetic blocks are electrically connected to an external current output device.

6. The digital piano tone dynamic adjustment processor according to claim 5, characterized in that: The inner sliding groove of the electromagnetic slot (286) is slidably connected to the inner tooth plate of the gear tooth plate member (287), and the electromagnetic block in the electromagnetic slot (286) is magnetically adsorbed to the inner tooth plate of the gear tooth plate member (287).

7. The digital piano tone dynamic adjustment processor according to claim 6, characterized in that: The left end of the inner gear of the gear tooth plate member (287) is rotatably connected to the upper right end of the connecting plate (285), the left end of the gear (288) is slidably connected to the right end of the connecting plate (285), and the center of the connecting plate (285) is hollow.

8. The digital piano tone dynamic adjustment processor according to claim 7, characterized in that: The second filter (36) is arranged on the left side of the audio processing chip (32), and the CPU (37) is arranged below the second filter (36).

9. The digital piano tone dynamic adjustment processor according to claim 8, characterized in that: The second microcontroller (383) is arranged at the lower right of the voltage sensor (382), the clock generator (384) is arranged at the left of the second microcontroller (383), and the error correction code circuit (388) is arranged at the lower right of the current sensor (381).

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