Tone dynamic adjustment processor for electric piano

Abstract

The invention discloses an electrical piano tone dynamic adjustment processor, and relates to the technical field of electrical piano processors, the electrical piano tone dynamic adjustment processor comprises a protective shell, a sound production circuit, an audio processing circuit and a heat dissipation waterproof mechanism, the sound production circuit is fixedly connected to the rear part in the protective shell, the audio processing circuit is fixedly connected to the front part in the protective shell, and the sound production circuit is arranged. Filtered signals are transmitted to a capacitor and an inductor, and frequency adjustment is performed on clock signals, so that the frequency and duty ratio of pulse signals are changed, dynamic adjustment of the tone quality of the electric piano is realized to a certain extent, a pneumatic adjusting part is arranged, and the tone adjustment of a buzzer is realized by adjusting the size of a pipe opening of a connecting pipe. The music expressive force of the electric piano is improved, the electric piano can play notes with different pitches, the music creation and playing requirements are met, the sound production circuit is combined with the pneumatic adjusting part, the natural tone is kept, and meanwhile rapid dynamic response is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electric piano processors, in particular to an electric piano timbre dynamic adjustment processor. Background Art

[0002] The piano tone dynamic adjustment processor is an electronic device specially used to adjust and control the tone of the electric piano. It can improve the tone quality, expressiveness and user experience by processing the audio signal generated by the electric piano.

[0003] When using the existing digital piano tone dynamic adjustment processor, it is difficult to adjust the frequency of the clock signal and change the frequency and duty cycle of the pulse signal, so it is difficult to achieve dynamic adjustment of the digital piano tone to a certain extent, and the practicality is relatively simple; when using the existing digital piano tone dynamic adjustment processor, it is difficult to change the vibration frequency of the buzzer, resulting in poor musical expression of the digital piano, and it is difficult to play notes of different pitches, so it is difficult to meet the needs of music creation and performance and to achieve fast dynamic response while maintaining natural tone; In addition, the existing digital piano tone dynamic adjustment processor is difficult to improve the tone quality, expression and user experience of the digital piano when in use, and its practicality is relatively simple; Finally: When using the existing electric piano tone dynamic adjustment processor, it is difficult to reduce the electrical signal delay caused by data waiting time. It is also difficult to strengthen and correct the electrical signal to ensure the integrity of the data during transmission between various components. The existing technology makes it difficult to dissipate heat and waterproof the processor, and its practicality is relatively simple. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a digital piano tone dynamic adjustment processor.

[0005] The present invention is implemented by constructing a dynamic adjustment processor for the tone of an electric piano, the device comprising a protective shell, a sound generating circuit is fixedly connected to the rear of the protective shell, an audio processing circuit is fixedly connected to the front of the protective shell, and a heat dissipation and waterproof mechanism is fixedly connected to the right end of the top of the protective shell; The sound-generating circuit comprises a first PCB board, which is fixedly connected to the rear of the protective shell, an oscillator chip is fixed by soldering at the lower right of the front end of the first PCB board, a frequency divider is fixed by soldering at the upper center of the front end of the first PCB board, a first filter is fixed by soldering at the lower left of the front end of the first PCB board, a capacitor is fixed by soldering at the lower left of the front end of the first PCB board, an inductor is fixed by soldering at the lower right of the front end of the first PCB board, a first microcontroller is fixed by soldering at the upper left of the front end of the first PCB board, and a pneumatic adjustment component is fixed by soldering at the upper right of the front end of the first PCB board, wherein the capacitor is arranged below the first filter, and the inductor is arranged on the right side of the oscillator chip.

[0006] Preferably, the pneumatic adjustment component includes a piston cylinder, a piston cylinder is soldered and fixed to the upper right side of the front end of the first PCB board, the front end of the piston cylinder is slidably connected to the outer wall of the piston rod, the front end of the piston rod is fixedly connected to a buzzer, the right end of the piston cylinder is fixedly connected to a connecting tube, the right end of the connecting tube is fixedly connected to a connecting plate, an electromagnetic slot is provided on the upper right side of the connecting plate, the electromagnetic slot is slidably connected to the inner tooth plate of the gear tooth plate part, a gear is meshed at the bottom of the inner gear of the gear tooth plate part, the right end of the gear is rotatably connected to five groups of rotating rods, the left end of the rotating rod is rotatably connected to the right end of the opening and closing block, and the right end of the opening and closing block is rotatably connected to the left end of the connecting ring.

[0007] Preferably, the audio processing circuit includes a second PCB board, a second PCB board is fixedly connected to the front of the protective shell, an audio processing chip is soldered and fixed to the lower left of the front end of the second PCB board, a memory is soldered and fixed at the center of the front end of the second PCB board, an analog converter is soldered and fixed to the lower right of the front end of the second PCB board, a first amplifier is soldered and fixed to the lower right of the front end of the second PCB board, and the first amplifier is arranged below the analog converter, a second filter is soldered and fixed to the lower left of the front end of the second PCB board, a CPU is soldered and fixed to the lower left of the front end of the second PCB board, and a detection circuit is soldered and fixed to the upper right of the front end of the second PCB board.

[0008] Preferably, the detection circuit includes a current sensor, a current sensor is fixed by soldering at the upper right corner of the front end of the second PCB board, a voltage sensor is fixed by soldering at the upper left corner of the front end of the second PCB board, a second microcontroller is fixed by soldering at the upper left corner of the front end of the second PCB board, a clock generator is fixed by soldering at the upper left corner of the front end of the second PCB board, a high-speed cache is fixed by soldering at the upper left corner of the front end of the second PCB board, and the high-speed cache is arranged on the left side of the voltage sensor, a power management chip is fixed by soldering at the upper center of the front end of the second PCB board, a second amplifier is fixed by soldering at the upper left corner of the front end of the second PCB board, and the second amplifier is arranged on the left side of the high-speed cache, and an error correction code circuit is fixed by soldering at the upper right corner of the front end of the second PCB board.

[0009] Preferably, the heat dissipation and waterproof mechanism includes a micro cylinder, a micro cylinder is fixedly connected to the right end of the top of the protective shell, a fixed rod is fixedly connected to the right end of the bottom of the push rod at the right end of the micro cylinder, a sealing plug is fixedly connected to the bottom of the fixed rod, five groups of sealing plugs are provided, and the five groups of sealing plugs are fixedly connected by mounting rods, a moving rod is fixedly connected to the bottom of the sealing plug, a telescopic rod is fixedly connected to the bottom of the moving rod, and the left end of the top of the telescopic rod is fixedly connected to the right end of the bottom of the protective shell, an air vent is provided at the right end of the protective shell, and the air vent is fixedly connected to the sealing plug.

[0010] Preferably, the electromagnetic slot is composed of a slide slot provided at the upper right end of the connecting plate, 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.

[0011] Preferably, the slide groove in the electromagnetic slot is slidably connected to the inner tooth plate of the gear tooth plate member, and the electromagnetic block in the electromagnetic slot is magnetically adsorbed to the inner tooth plate of the gear tooth plate member.

[0012] Preferably, the left end of the gear inside the gear tooth plate is rotatably connected to the upper right end of the connecting plate, the left end of the gear is slidably connected to the right end of the connecting plate, and the center of the connecting plate is hollow.

[0013] Preferably, the second filter is arranged on the left side of the audio processing chip, and the CPU is arranged below the second filter.

[0014] Preferably, the second microcontroller is arranged at the lower right of the voltage sensor, the clock generator is arranged at the left of the second microcontroller, and the error correction code circuit is arranged at the lower right of the current sensor.

[0015] The present invention has the following advantages: The present invention provides an electric piano tone dynamic adjustment processor through improvement, which has the following improvements compared with similar devices: The electric piano timbre dynamic adjustment processor of the present invention is provided with a sounding circuit, which transmits the filtered signal to a capacitor and an inductor to adjust the frequency of the clock signal, thereby changing the frequency and duty cycle of the pulse signal, and realizing the dynamic adjustment of the timbre of the electric piano to a certain extent; a pneumatic adjustment part is provided, and the tone of the buzzer is adjusted by adjusting the size of the pipe mouth of the connecting pipe, thereby improving the musical expression of the electric piano, so that the electric piano can play notes of different pitches, meet the needs of music creation and performance, and realize fast dynamic response while maintaining the natural timbre by combining the sounding circuit with the pneumatic adjustment part; an audio processing circuit is provided, and the C The PU compares the characteristics of the audio signal currently being played, selects the most appropriate tone parameters from the tone database for adjustment, and improves the tone quality, expressiveness, and user experience of the electric piano; a detection circuit is set up to reduce the electrical signal delay caused by data waiting time through a high-speed cache, and then the electrical signal is strengthened through a second amplifier. Finally, the error correction code circuit is used to ensure the integrity of the data during transmission between various components, and a heat dissipation and waterproof mechanism is set up to increase air flow through the air vents to take away the heat generated by the processor, and then five sets of sealing plugs are inserted into the air vents to ensure the sealing of the protective shell and prevent moisture from entering and affecting the use of the processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the protective shell of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the sound-generating circuit of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the pneumatic adjustment member of the present invention; Figure 4 The present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 The present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 6 It is a three-dimensional structural diagram of the audio processing circuit of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the detection circuit of the present invention.

[0017] Wherein: protective shell-1, sound circuit-2, first PCB board-21, oscillator chip-22, divider-23, first filter-24, capacitor-25, inductor-26, first microcontroller-27, pneumatic adjustment part-28, piston cylinder-281, piston rod-282, buzzer-283, connecting pipe-284, connecting plate-285, electromagnetic slot-286, gear tooth plate part-287, gear-288, rotating rod-289, opening and closing block-2810, connecting ring-2811, audio processing circuit-3, second PCB board-31, audio Processing chip -32, memory -33, analog converter -34, first amplifier -35, second filter -36, CPU -37, detection circuit -38, current sensor -381, voltage sensor -382, second microcontroller -383, clock generator -384, cache -385, power management chip -386, second amplifier -387, error correction code circuit -388, heat dissipation and waterproofing mechanism -4, micro cylinder -41, fixing rod -42, sealing plug 43, mounting rod -44, moving rod -45, telescopic rod -46, air vent -47. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1 to Figure 7 The principles and features of the present invention are described, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail 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 are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0021] Embodiment 1:

[0022] See also Figure 1~Figure 2 The present invention provides a dynamic tone adjustment processor for an electric piano, comprising a protective shell 1, a sound generating circuit 2 is fixedly connected to the rear of the protective shell 1, an audio processing circuit 3 is fixedly connected to the front of the protective shell 1, and a heat dissipation and waterproof mechanism 4 is fixedly connected to the top right end of the protective shell 1; The sound circuit 2 includes a first PCB board 21, which is fixedly connected to the rear of the protective shell 1. 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 is convenient for installing and fixing the oscillator chip 22.

[0023] A frequency divider 23 is soldered and fixed at the center of the front end of the first PCB board 21, a first filter 24 is soldered and fixed at the lower left of the front end of the first PCB board 21, and a capacitor 25 is soldered and fixed at the lower left of the front end of the first PCB board 21. The first filter 24 is convenient for filtering the clock signal after passing through the frequency divider 23.

[0024] An inductor 26 is soldered to the lower right of the front end of the first PCB board 21, and a first microcontroller 27 is soldered to the upper left of the front end of the first PCB board 21. The first microcontroller 27 is convenient for adjusting the frequency division coefficient of the divider 23 and changing the resonant frequency of the circuit composed of the capacitor 25 and the inductor 26.

[0025] A pneumatic adjustment member 28 is soldered and fixed to the upper right of the front end of the first PCB board 21 . The capacitor 25 is disposed below the first filter 24 . The inductor 26 is disposed on the right side of the oscillator chip 22 .

[0026] The working principle of a dynamic adjustment processor of electric piano tone based on the first embodiment is as follows: First, when using this device, first place the device in the working area, and then connect the device to an external power source to provide the device with the power required for operation; 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 electric piano is powered on, the oscillator chip 22 will start to work and generate a basic clock frequency. Then the frequency divider 23 adjusts the output frequency by changing the frequency division coefficient, and outputs the divided signal to the first filter 24. The clock signal after passing through the frequency divider 23 is filtered by the first filter 24, and then the filtered signal is sent to the capacitor 25 and the inductor 26. The frequency of the clock signal is adjusted according to the values ​​of the capacitor and the inductor, thereby changing the frequency and duty cycle of the pulse signal, thereby realizing dynamic adjustment of the tone of the electric piano to a certain extent.

[0027] Embodiment 2:

[0028] See also Figure 3~Figure 5 Compared with the first embodiment, the present invention is a dynamic adjustment processor for the tone of an electric piano. The present embodiment further includes: a pneumatic adjustment member 28, the pneumatic adjustment member 28 includes a piston cylinder 281, the piston cylinder 281 is fixed by soldering at the upper right corner of the 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 283, and the piston rod 282 facilitates the installation and fixation of the buzzer 283.

[0029] The right end of the piston cylinder 281 is fixedly connected to a connecting pipe 284, and the right end of the connecting pipe 284 is fixedly connected to a connecting plate 285. An electromagnetic slot 286 is provided on the upper right side of the connecting plate 285. The electromagnetic slot 286 is slidably connected to the inner tooth plate of the gear tooth plate part 287, and the electromagnetic slot 286 is convenient for driving the inner tooth plate of the gear tooth plate part 287 to move.

[0030] A gear 288 is meshed at the bottom of the inner gear of the gear tooth plate 287. The right end of the gear 288 is rotatably connected to five sets 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. 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 is convenient for driving the opening and closing block 2810 to open and close.

[0031] The electromagnetic slot 286 consists of a slide slot arranged 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 block is electrically connected to the external current output device, the slide slot in the electromagnetic slot 286 is slidingly connected to the inner tooth plate of the gear tooth plate part 287, the electromagnetic block in the electromagnetic slot 286 is magnetically adsorbed to the inner tooth plate of the gear tooth plate part 287, the left end of the gear in the gear tooth plate part 287 is rotatably connected to the upper right end of the connecting plate 285, the left end of the gear 288 is slidingly connected to the right end of the connecting plate 285, and the center of the connecting plate 285 is hollow.

[0032] In this embodiment: When pneumatic adjustment is required, the fifteen groups of electromagnetic blocks in the electromagnetic slot 286 are energized step by step through the external current output device, so that the inner gear plate of the gear tooth plate part 287 is affected by the magnetism of the fifteen groups of electromagnetic blocks in the electromagnetic slot 286 and moves forward and backward, and the inner gear plate of the gear tooth plate part 287 drives the inner gear of the gear tooth plate part 287 to rotate, and the inner gear of the gear tooth plate part 287 drives the gear 288 to rotate, and the gear 288 drives the five groups of opening and closing blocks 2810 to rotate and open and close in the connecting ring 2811 through the rotation connection with the rotating rod 289, so that the center of the connecting plate 285 The connecting tube 284 is exposed to the outside world, so as to adjust the size of the tube mouth of the connecting tube 284. When the tube mouth of the connecting tube 284 becomes larger, the gas flow rate increases, and the vibration frequency of the buzzer 283 increases. Conversely, the vibration frequency of the buzzer 283 decreases. Then, by adjusting the size of the tube mouth of the connecting tube 284, the tone of the buzzer can be adjusted, thereby improving the musical expression of the electric piano, allowing it to play notes of different pitches, and meeting the needs of music creation and performance. The sounding circuit 2 is combined with the pneumatic adjustment member 28 to maintain a natural tone while achieving a fast dynamic response.

[0033] Embodiment three:

[0034] See also Figure 6 Compared with the first embodiment, the present invention is a dynamic adjustment processor of the tone of an electric piano. The present 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, and an audio processing chip 32 is fixed by soldering at the lower left of the front end of the second PCB board 31. The second PCB board 31 is convenient for installing and fixing the audio processing chip 32.

[0035] 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. The analog converter 34 is convenient for converting the digital signal output by the audio processing chip 32 into an analog signal that can be recognized by the electric piano.

[0036] A second filter 36 is soldered to the lower left of the front end of the second PCB board 31, and a CPU 37 is soldered to the lower left of the front end of the second PCB board 31. CPU 37 is convenient for executing all logical calculations and decisions, and comparing the audio signal with the timbre database of the electric piano stored in the memory 33.

[0037] A detection circuit 38 is soldered and fixed at the upper right of the front end of the second PCB board 31 . The second filter 36 is arranged on the left of the audio processing chip 32 , and the CPU 37 is arranged below the second filter 36 .

[0038] In this embodiment: The staff stores the timbre database of the electric piano in the memory 33 in advance, and then processes the audio signal generated by the electric piano through the audio processing chip 32, and then converts the digital signal output by the audio processing chip 32 into an analog signal that can be recognized by the electric piano through the analog converter 34, and then amplifies the analog signal through the first amplifier 35 to achieve the volume and dynamic range that the electric piano should have, and then further processes the audio signal through the second filter 36 to remove unnecessary 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 electric piano stored in the memory 33. By comparing the characteristics of the audio signal currently being played, the most appropriate timbre parameters are selected from the timbre database for adjustment, so as to improve the timbre quality, expressiveness and user experience of the electric piano.

[0039] Embodiment 4:

[0040] See also Figure 7 Compared with the first embodiment, the present invention is a dynamic adjustment processor of the tone of an electric piano. The present embodiment further includes: a detection circuit 38, the detection circuit 38 includes a current sensor 381, the current sensor 381 is fixed by soldering at the upper right of the front end of the second PCB board 31, and the voltage sensor 382 is fixed by soldering at the upper left of the front end 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.

[0041] 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 cache 385 is fixed by soldering at the upper left of the front end of the second PCB board 31, and the cache 385 is arranged on the left side of the voltage sensor 382, ​​and the clock generator 384 is convenient for providing a stable clock signal for the entire circuit.

[0042] A power management chip 386 is fixed by soldering at the upper center of the front end of the second PCB board 31, and a second amplifier 387 is fixed by soldering at the upper left of the front end of the second PCB board 31. The second amplifier 387 is arranged 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 amplifying the input electrical signal.

[0043] An error correction code circuit 388 is soldered and fixed at the upper right front end of the second PCB board 31 , the second microcontroller 383 is arranged at the lower right of the voltage sensor 382 , the clock generator 384 is arranged on 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 .

[0044] In this embodiment: First, the staff stores frequently accessed data in the cache 385 in advance. When it is necessary to prevent electrical signal delay, the current sensor 381 and the voltage sensor 382 capture the current and voltage changes triggered by the keys, and pass the relevant data to the second microcontroller 383. The second microcontroller 383 determines the working state of the circuit based on these data, and then provides a stable clock signal for the entire circuit through the clock generator 384. When data needs 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; Second, when the electrical signal strength needs to be increased, the power management chip 386 provides a suitable power supply to the second amplifier 387, and the second amplifier 387 receives the power supply optimized by the power management chip 386, amplifies the input electrical signal, and realizes the strengthening of the electrical signal; 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 verifies it at the receiving end. If errors are found in the data, it will try to correct them according to the error correction code, thereby ensuring the integrity of the data during transmission between various components.

[0045] Embodiment five:

[0046] See also Figure 1 Compared with the first embodiment, the present invention is a dynamic adjustment processor of the tone of an electric piano. The present embodiment further includes: a heat dissipation and waterproof mechanism 4, wherein the heat dissipation and waterproof mechanism 4 includes a micro cylinder 41, and the right end of the top of the protective shell 1 is fixedly connected with the micro cylinder 41, and the right end of the bottom of the push rod at the right end of the micro cylinder 41 is fixedly connected with a fixed rod 42, so that the micro cylinder 41 can easily drive the fixed rod 42 to move.

[0047] A sealing plug 43 is fixedly connected to the bottom of the fixing rod 42. 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. A moving rod 45 is fixedly connected to the bottom of the sealing plug 43. The mounting rod 44 facilitates the movement of the sealing plug 43.

[0048] 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 to the right end of the bottom of the protective shell 1 . The right end of the protective shell 1 is provided with a vent hole 47 , and the vent hole 47 is plugged and fixed with the sealing plug 43 .

[0049] In this embodiment: When the protective shell 1 is in use, the air flow is increased through the air vents 47, thereby taking away the heat generated by the processor. When encountering humid weather, the micro cylinder 41 is started, and the micro cylinder 41 drives the fixing rod 42 to move to the left. The fixing rod 42 drives the five groups of sealing plugs 43 to move to the left through the mounting rod 44. At this time, the telescopic rod 46 contracts, so that the five groups of sealing plugs 43 are inserted into the air vents 47, ensuring the sealing of the protective shell 1 and preventing moisture from entering and affecting the use of the processor.

[0050] The present invention provides an improved processor for dynamically adjusting the tone of an electric piano. A sounding circuit 2 is provided. The frequency of a clock signal is adjusted by transmitting a filtered signal to a capacitor 25 and an inductor 26, thereby changing the frequency and duty cycle of a pulse signal, and realizing dynamic adjustment of the tone of the electric piano to a certain extent. A pneumatic adjusting member 28 is provided. The tone of a buzzer is adjusted by adjusting the size of a pipe opening of a connecting pipe 284, thereby improving the musical expression of the electric piano, enabling it to play notes of different pitches, and meeting the needs of music creation and performance. The sounding circuit 2 is combined with the pneumatic adjusting member 28 to maintain a natural tone while realizing a fast dynamic response. An audio processing circuit 3 is provided. Through the CP U37 compares the characteristics of the audio signal currently being played, selects the most appropriate timbre parameters from the timbre database for adjustment, and improves the timbre quality, expressiveness and user experience of the electric piano; a detection circuit 38 is set to reduce the electrical signal delay caused by data waiting time through a high-speed cache 385, and then strengthens the electrical signal through a second amplifier 387, and finally ensures the integrity of the data during transmission between various components through an error correction code circuit 388; a heat dissipation and waterproof mechanism 4 is set to increase air flow through the air vents 47 to take away the heat generated by the processor, and then five sets of sealing plugs 43 are inserted into the air vents 47 to ensure the sealing of the protective shell 1 and prevent moisture from entering and affecting the use of the processor.

[0051] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0052] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may 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 widest range 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).

2. The digital piano tone dynamic adjustment processor according to claim 1, characterized in that: 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).

3. The digital piano tone dynamic adjustment processor according to claim 2, 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).

4. The digital piano tone dynamic adjustment processor according to claim 3, 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).

5. The digital piano tone dynamic adjustment processor according to claim 4, 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).

6. The digital piano tone dynamic adjustment processor according to claim 5, 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.

7. The digital piano tone dynamic adjustment processor according to claim 6, 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).

8. The digital piano tone dynamic adjustment processor according to claim 7, 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.

9. The digital piano tone dynamic adjustment processor according to claim 8, 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).

10. The digital piano tone dynamic adjustment processor according to claim 9, 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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