CN114974172A - Method for enhancing resonance effect of piano sound source plate - Google Patents
Method for enhancing resonance effect of piano sound source plate Download PDFInfo
- Publication number
- CN114974172A CN114974172A CN202210621674.8A CN202210621674A CN114974172A CN 114974172 A CN114974172 A CN 114974172A CN 202210621674 A CN202210621674 A CN 202210621674A CN 114974172 A CN114974172 A CN 114974172A
- Authority
- CN
- China
- Prior art keywords
- vibration
- sound source
- voice coil
- piano
- enhancing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000694 effects Effects 0.000 title claims abstract description 37
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000005236 sound signal Effects 0.000 claims description 6
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 5
- 229920001651 Cyanoacrylate Polymers 0.000 claims description 3
- 239000004830 Super Glue Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 239000004411 aluminium Substances 0.000 description 7
- 239000012634 fragment Substances 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
- G10C3/06—Resonating means, e.g. soundboards or resonant strings; Fastenings thereof
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
The invention discloses a method for enhancing the resonance effect of a piano sound source plate, which comprises the following steps: s1, fixedly mounting the vibration device on the surface of a central disc of the piano and enabling a voice coil vibration column of the vibration device to be attached to a resonance plate of the piano; s2, acquiring data signals during key operation through the photoelectric detection sensor and transmitting the data signals to a sound source conversion center; s3, the sound source conversion center outputs preset digital audios with different timbres and corresponding force based on the received data signals and outputs the preset digital audios to the vibration device; and S4, receiving the digital audio output by the sound source conversion center through a vibration device, outputting a specific vibration audio, and then transmitting the specific vibration audio to a piano sound board and vibrating and resonating with strings, thereby achieving the effect of enhancing the resonance of the piano sound source board. The invention utilizes the vibration device to synchronously output the specific vibration audio frequency corresponding to the key frequency and conduct the specific vibration audio frequency to the piano resonance plate to be in vibration resonance with the strings, thereby changing or enhancing the sound effect of the piano and achieving the effect of enhancing the resonance of the piano sound source plate.
Description
Technical Field
The invention relates to the technical field of intelligent pianos, in particular to a method for enhancing the resonance effect of a piano sound source plate.
Background
The sound production of the piano is mainly realized by the way that strings transmit knocking vibration energy to a sound source resonance board to enable the sound source resonance board to resonate. Because general string is very thin, and the acoustic energy efficiency that its vibration radiated is very low, therefore the string can pass through the code bridge and pass the energy of self vibration to the great sound source resonance board of area to improve its acoustic energy radiation efficiency, make the sound production of hearing piano that the human ear can be clear.
The sound source resonance board belongs to a continuous elastic thin board and can generate corresponding vibration after being excited, in order to further enhance the resonance effect of the piano sound source board, the invention utilizes the working characteristic of the sound source resonance board to load a sound source vibration device which drives the resonance board to vibrate on the piano resonance board, so that when strings vibrate, the vibration device synchronously sends out vibration signals corresponding to the key frequency and transmits the vibration signals to the piano resonance board, thereby amplifying and enhancing the vibration effect of the piano resonance board, increasing the playing volume of the piano, and simultaneously converting the tone color expression of the original piano by adjusting the audio tone color output by the vibration device, so as to improve the performance and the tone color expression of a piano sound source.
Disclosure of Invention
The invention aims to provide a method for enhancing the resonance effect of a piano sound source plate, which utilizes a vibration device to synchronously output specific vibration audio frequencies corresponding to the frequencies of keys and conduct the specific vibration audio frequencies to a piano resonance plate to vibrate and resonate with strings, thereby changing or enhancing the sound effect of a piano and achieving the effect of enhancing the resonance effect of the piano sound source plate.
The invention provides a method for enhancing the resonance effect of a piano sound source plate, which comprises the following steps:
s1, fixedly mounting the vibration device on the surface of a central disc of the piano and enabling a voice coil vibration column of the vibration device to be attached to a resonance plate of the piano;
s2, acquiring analog data signals of the keys in operation through the photoelectric detection sensor, converting the analog data signals into digital signals containing force, and transmitting the digital signals to a sound source conversion center;
s3, the sound source conversion center outputs preset digital audio with different timbres with corresponding force based on the digital signal with the force, and outputs the preset digital audio to the vibration device;
and S4, receiving the digital audio output by the sound source conversion center through the vibration device, outputting a corresponding specific vibration audio, and then transmitting the specific vibration audio to the piano soundboard to vibrate and resonate synchronously with the strings, so that superposition of mechanical vibration and electric drive vibration of the strings is achieved, and the resonance effect of the piano sound source board is enhanced.
Preferably, the specific implementation manner of step S2 is: the corresponding analog data signals of the distance change speed and the distance between each key and the photoelectric detection sensor during the operation of each key are acquired through the photoelectric detection sensor, the analog data signals are converted into digital signals through an ADC (analog to digital converter) chip, and then the digital signals are packaged and transmitted to the sound source conversion center through the MCU.
Preferably, the specific implementation step of step S3 includes:
s31, the sound source conversion center converts the received digital signals into the degree of pressure and speed of the corresponding keys and marks the keys to output the corresponding sound source data signals;
and S32, adjusting the total intensity and output frequency of the corresponding output sound source data signals by adding sound wave frequencies with different phases, frequencies and amplitudes or by using a sound source plate of a sound source conversion center to output preset digital audios with different timbres with corresponding force, and outputting the preset digital audios to the vibration device by using the DAC chip and the ear amplifier chip.
Preferably, the specific implementation manner of step S4 is: the digital audio signal output by the sound source conversion center received by the vibrating device is decomposed into a current signal group consisting of current on-off with different time sequence intensity and frequency, the current signal group flows through the copper coil to generate magnetic force, the magnetic force and a permanent magnet core arranged in the copper coil generate suction force to enable a voice coil vibration column, a voice coil vibration elastic sheet, a voice coil fixing plate and a voice coil aluminum cylinder in the vibrating device to be simultaneously attracted by the permanent magnet core, when the current signal group is finished, the corresponding suction force disappears, the voice coil vibration column returns to an initial position due to the elastic force of the voice coil vibration elastic sheet, then the current signal group decomposed by the next adjusted sound source data signal generates suction force again and reciprocates in a circulating way, and then the voice coil vibration column generates specific vibration audio frequency and transmits the specific vibration audio frequency to the piano vibration resonance plate and strings of the piano vibration plate, thereby achieving the effect of enhancing the resonance of the piano sound source plate.
Preferably, the vibration device is fixedly mounted close to the center position of the piano sound board through a fixing bracket.
Preferably, vibrating device is including vibrating chamber shell and circuit shell, be equipped with from last to the voice coil loudspeaker voice coil vibration post that connects gradually down in the vibration chamber shell, voice coil loudspeaker voice coil vibration shell fragment, voice coil loudspeaker voice coil fixed plate and voice coil aluminium section of thick bamboo, around being equipped with copper coil on the voice coil loudspeaker voice coil aluminium section of thick bamboo, the copper coil endotheca is equipped with the magnet core forever, the lower extreme of magnet core forever is fixed in vibrating chamber shell through fixed aluminium circle of locating in the vibration chamber shell, the circuit shell is connected with the vibration chamber shell and is located the below of vibrating chamber shell, be equipped with the circuit board that enlargies the processing to the sound source data signal of sound source conversion center output in the circuit shell, the circuit board is connected with copper coil, be equipped with the switch on the circuit shell, earphone jack be connected with the circuit board and be used for realizing the power source that external power source and circuit board are connected.
Preferably, the circuit housing is fixed to the bottom of the vibration chamber housing by screws.
Preferably, the permanent magnet core is embedded in the fixed aluminum ring and is installed at the central position of the inner bottom surface of the vibration cavity shell through metal super glue.
Preferably, copper coil evenly around locating on the voice coil loudspeaker voice coil aluminium section of thick bamboo, voice coil loudspeaker voice coil aluminium section of thick bamboo cover is established on the voice coil loudspeaker voice coil fixed plate, and the voice coil loudspeaker voice coil fixed plate bonds through metal brute force and puts at voice coil loudspeaker voice coil vibration shell fragment bottom central point, and voice coil loudspeaker voice coil vibration post passes through the matching internal thread threaded connection that sets up on bottom external screw thread and voice coil loudspeaker voice coil vibration shell fragment and the voice coil loudspeaker voice coil fixed plate, and voice coil loudspeaker voice coil vibration shell fragment passes through the fix with screw on the vibration chamber shell.
Preferably, the copper coil has two layers, fifteen turns each.
Compared with the prior art, the method for enhancing the resonance effect of the piano sound source plate can synchronously output specific vibration audio frequencies corresponding to the key frequencies by using the vibration device and conduct the specific vibration audio frequencies to the piano resonance plate to vibrate and resonate with the strings, so that the sound effect of the piano is changed or enhanced, and the resonance effect of the piano sound source plate is enhanced.
Drawings
FIG. 1 is a flow chart of a method for enhancing the resonance effect of a piano sound source plate according to the present invention,
fig. 2 is a schematic view of the structure of the vibration device according to the present invention.
In the figure, 1, a vibration cavity shell, 11, a voice coil vibration column, 12, a voice coil vibration elastic sheet, 13, a voice coil fixing plate, 14, a voice coil aluminum cylinder, 15, a fixed aluminum ring, 2, a circuit shell, 21, a circuit board, 22, a switch, 23, an earphone jack, 24, a power interface and 3, a copper coil.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a method for enhancing the resonance effect of a piano sound source plate comprises the following steps:
s1, fixedly mounting the vibration device on the surface of a central disc of the piano and enabling a voice coil vibration column of the vibration device to be attached to a resonance plate of the piano;
s2, data signals are obtained through the photoelectric detection sensor when the keys run and are transmitted to the sound source conversion center, and the method specifically comprises the following steps: acquiring corresponding Analog data signals of distance change speed and distance between each key and the photoelectric detection sensor when each key runs through the photoelectric detection sensor, converting the Analog data signals into Digital signals by using an ADC (Analog-to-Digital Converter), and packaging and transmitting the Digital signals to a sound source conversion center through an MCU (Microcontroller Unit micro control Unit);
s3, the sound source conversion center outputs preset different tone color digital audio frequencies of corresponding dynamics based on the digital signals containing dynamics, and outputs the preset different tone color digital audio frequencies to the vibration device, and the sound source conversion center specifically comprises:
s31, the sound source conversion center converts the received digital signals into the degree of pressure and speed of the corresponding keys and marks the keys to output corresponding sound source data signals;
s32, adjusting the total intensity and output frequency of the corresponding audio source data signal by adding sound wave frequencies with different phases, frequencies and amplitudes or using an audio source board of an audio source conversion center to output preset Digital audios with different timbres with corresponding strengths, and then outputting the preset Digital audios to a vibration device by using a DAC (Digital-to-Analog Converter) and an ear amplifier chip;
s4, receiving digital audio output by the sound source conversion center through a vibration device, outputting corresponding specific vibration audio, and then transmitting the specific vibration audio to a piano sound board and vibrating and resonating with strings synchronously, thereby achieving superposition of mechanical vibration and electric drive vibration of the strings, and realizing the resonance effect of the reinforced piano sound source board, and specifically comprising the following steps: the digital audio signal output by the sound source conversion center received by the vibrating device is decomposed into a current signal group consisting of current on-off with different time sequence intensity and frequency, the current signal group flows through the copper coil to generate magnetic force, the magnetic force and a permanent magnet core arranged in the copper coil generate suction force to enable a voice coil vibration column, a voice coil vibration elastic sheet, a voice coil fixing plate and a voice coil aluminum cylinder in the vibrating device to be simultaneously attracted by the permanent magnet core, when the current signal group is finished, the corresponding suction force disappears, the voice coil vibration column returns to an initial position due to the elastic force of the voice coil vibration elastic sheet, then the current signal group decomposed by the next adjusted sound source data signal generates suction force again and reciprocates in a circulating way, and then the voice coil vibration column generates specific vibration audio frequency and transmits the specific vibration audio frequency to the piano vibration resonance plate and strings of the piano vibration plate, thereby achieving the effect of enhancing the resonance of the piano sound source plate.
In this embodiment, first, the vibration device is fixedly mounted by being closely attached to the center position of the piano soundboard through a fixing bracket, and a voice coil vibration column of the vibration device is attached to the piano soundboard; then, acquiring the distance change speed and distance between the corresponding key and the photoelectric detection sensor when each key runs by using the photoelectric detection sensor, converting the distance change speed and distance into data signals and transmitting the data signals to a sound source conversion center, wherein the data signals comprise the pressing pressure degree, the pressing speed and the key number of the corresponding key; then, the volume or tone of the digital signal containing the dynamics is adjusted through the sound source conversion center to output preset different tone digital audios with corresponding dynamics, specifically, the overall intensity and output frequency of the digital signal containing the dynamics are adjusted through adding sound wave frequencies with different phases, frequencies and amplitudes or utilizing a sound source plate of the sound source conversion center to output preset different tone digital audios with corresponding dynamics, if the tone of the piano bass region is not perfectly thick enough, the overall intensity and output frequency of the digital audios are adjusted to enhance the overtone loudness of the bass audios output by the resonance device to compensate the weak tone of the piano soundboard bass; if the piano original sound tone is too strong in overtone, too weak in fundamental tone and not clear enough in tone, the corresponding tone in the sound source data information is adjusted by adjusting the overall intensity and output frequency of the digital audio so as to enhance the fundamental tone of the electroacoustic part, weaken the overtone and make the tone clear; meanwhile, the overall intensity in the digital audio can be correspondingly adjusted to enhance or reduce the volume of the corresponding original sound; and finally, transmitting the regulated digital audio to a vibrating device, and decomposing each section of digital audio into a corresponding current signal group by the vibrating device to generate specific vibration audio and transmitting the specific vibration audio to a piano sound board to vibrate and resonate with strings of a piano vibration plate, thereby achieving the effect of enhancing the resonance of the piano sound source board.
As shown in fig. 2, the vibration device includes a vibration cavity housing 1 and a circuit housing 2, a voice coil vibration column 11, a voice coil vibration spring 12, a voice coil fixing plate 13 and a voice coil aluminum tube 14 are sequentially arranged in the vibration cavity housing 1 from top to bottom, a copper coil 3 is wound on the voice coil aluminum tube 14, a permanent magnet core 4 is sleeved in the copper coil 3, the lower end of the permanent magnet core 4 is fixed in the vibration cavity housing 1 through a fixing aluminum coil 15 fixedly arranged in the vibration cavity housing 1, the circuit housing 2 is connected with the vibration cavity housing 1 and located below the vibration cavity housing 1, a circuit board 21 for amplifying a sound source data signal output by a sound source conversion center is arranged in the circuit housing 2, the circuit board 21 is connected with the copper coil 3, the circuit casing 2 is provided with a switch 22 for turning on or off the vibration device, an earphone jack 23 for receiving an audio source data signal and connecting with the circuit board 21, and a power interface 24 for connecting an external power source with the circuit board 21.
Wherein, the circuit shell 2 is fixed at the bottom of the vibration cavity shell 1 through screws.
The permanent magnet core 4 is embedded in the fixed aluminum ring 15 and is mounted at the central position of the inner bottom surface of the vibration cavity shell 1 through metal super glue.
Wherein, copper coil 3 evenly winds on locating voice coil loudspeaker voice coil aluminium section of thick bamboo 14, and 14 covers of voice coil loudspeaker voice coil aluminium section of thick bamboo are established on voice coil loudspeaker voice coil fixed plate 13, and voice coil loudspeaker voice coil fixed plate 13 bonds through metal powerful glue and puts at 12 bottom central points of voice coil loudspeaker voice coil vibration shell fragment, and voice coil loudspeaker voice coil vibration post 11 is through the matching internal thread threaded connection that sets up on bottom external screw thread and voice coil loudspeaker voice coil vibration shell fragment 12 and the voice coil loudspeaker voice coil fixed plate 13, and voice coil loudspeaker voice coil vibration shell fragment 12 passes through the fix with screw on vibration chamber shell 1.
Wherein, the copper coil 3 has two layers in total, and each layer has fifteen turns.
In this embodiment, the vibrating device receives the digital audio signal transmitted by the sound source conversion center through the earphone jack 23, and then decomposes each section of digital audio signal into a current signal group composed of current on-off with different time sequence intensity and frequency by using the circuit board 21, and the current signal group flows through the copper coil 3, and the copper coil 3 generates magnetic force instantly due to the current flowing, and the magnetic force generates suction force with the permanent magnet core 4 sleeved inside the copper coil 3, and the suction force causes the four connecting pieces of the voice coil vibration column 11, the voice coil vibration elastic sheet 12, the voice coil fixing plate 13 and the voice coil aluminum tube 14 to be simultaneously adsorbed by the permanent magnet core 4, and when the current signal group is finished, the corresponding suction force disappears, and at this time, the four connecting pieces return to the initial position due to the elastic force of the voice coil vibration elastic sheet 12, and then the current signal group decomposed by the next section of digital audio signal is excited again to generate suction force, the invention utilizes the combination mode of the vibrating device and the piano vibrating plate, transmits the specific vibration frequency to the piano vibrating plate through the vibrating device, and the piano vibrating plate is excited by the strings and simultaneously vibrates with the same frequency synchronously emitted by the vibrating device, thereby changing the vibration excitation amplitude of the piano vibrating plate, so that the piano original sound and the electric sound source simultaneously do work on the piano vibrating plate, and the effect of changing or enhancing the volume and the tone color of the piano is achieved.
The method for enhancing the resonance effect of the piano sound source plate provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A method for enhancing the resonance effect of a piano sound source plate, comprising the steps of:
s1, fixedly mounting the vibration device on the surface of a central disc of the piano and enabling a voice coil vibration column of the vibration device to be attached to a resonance plate of the piano;
s2, acquiring analog data signals of the keys in operation through the photoelectric detection sensor, converting the analog data signals into digital signals containing force, and transmitting the digital signals to a sound source conversion center;
s3, outputting preset digital audio with different timbres with corresponding force by the sound source conversion center based on the digital signal with the force, and outputting the preset digital audio to the vibration device;
and S4, receiving the digital audio output by the sound source conversion center through the vibration device, outputting corresponding specific vibration audio, transmitting the specific vibration audio to a piano sound board and synchronously vibrating and resonating with strings, thereby achieving superposition of mechanical vibration and electric drive vibration of the strings and enhancing the resonance effect of the piano sound source board.
2. The method for enhancing the resonance effect of a piano sound source plate according to claim 1, wherein the step S2 is specifically implemented as follows: the corresponding analog data signals of the distance change speed and the distance between each key and the photoelectric detection sensor during the operation of each key are acquired through the photoelectric detection sensor, the analog data signals are converted into digital signals through an ADC (analog to digital converter) chip, and then the digital signals are packaged and transmitted to the sound source conversion center through the MCU.
3. The method for enhancing the resonance effect of a piano sound source plate according to claim 2, wherein the step S3 is embodied by the steps of:
s31, the sound source conversion center converts the received digital signals into the degree of pressure and speed of the corresponding keys and marks the keys to output corresponding sound source data signals;
and S32, adjusting the total intensity and output frequency of the corresponding output sound source data signals by adding sound wave frequencies with different phases, frequencies and amplitudes or by using a sound source plate of a sound source conversion center to output preset digital audios with different timbres with corresponding force, and outputting the preset digital audios to the vibration device by using the DAC chip and the ear amplifier chip.
4. The method for enhancing the resonance effect of a piano sound source plate according to claim 3, wherein the step S4 is specifically realized by: the digital audio signal output by the sound source conversion center received by the vibrating device is decomposed into a current signal group consisting of current on-off with different time sequence intensity and frequency, the current signal group flows through the copper coil to generate magnetic force, the magnetic force and a permanent magnet core arranged in the copper coil generate suction force to enable a voice coil vibration column, a voice coil vibration elastic sheet, a voice coil fixing plate and a voice coil aluminum cylinder in the vibrating device to be simultaneously attracted by the permanent magnet core, when the current signal group is finished, the corresponding suction force disappears, the voice coil vibration column returns to an initial position due to the elastic force of the voice coil vibration elastic sheet, then the current signal group decomposed by the next adjusted sound source data signal generates suction force again and reciprocates in a circulating way, and then the voice coil vibration column generates specific vibration audio frequency and transmits the specific vibration audio frequency to the piano vibration resonance plate and strings of the piano vibration plate, thereby achieving the effect of enhancing the resonance of the piano sound source plate.
5. The method for enhancing the resonance effect of a piano sound source plate according to claim 4, wherein the vibration device is fixedly installed by a fixing bracket against the center position of the piano sound board.
6. The method for enhancing the resonance effect of a piano sound source plate according to claim 5, the vibrating device comprises a vibrating cavity shell and a circuit shell, a voice coil vibration column which is sequentially connected from top to bottom is arranged in the vibrating cavity shell, a voice coil vibration elastic sheet, a voice coil fixing plate and a voice coil aluminum cylinder, a copper coil is arranged on the voice coil aluminum cylinder in a winding mode, a permanent magnet core is arranged on a copper coil inner sleeve, a lower end of the permanent magnet core is fixedly arranged in the vibrating cavity shell through a fixed aluminum ring which is fixedly arranged in the vibrating cavity shell, the circuit shell is connected with the vibrating cavity shell and located below the vibrating cavity shell, a circuit board which is used for amplifying sound source data signals output by a sound source conversion center is arranged in the circuit shell, the circuit board is connected with the copper coil, a switch is arranged on the circuit shell, an earphone jack which is connected with the circuit board and a power interface which is used for realizing connection of an external power supply and the circuit board.
7. A method for enhancing the resonance effect of a piano sound source plate according to claim 6, wherein the circuit case is fixed to the bottom of the vibration cavity case by screws.
8. The method for enhancing the resonance effect of a piano sound source plate as claimed in claim 6, wherein the permanent magnet core is embedded in the fixed aluminum ring and installed at a central position of the inner bottom surface of the vibration cavity case by means of metal super glue.
9. The method according to claim 6, wherein the copper coil is uniformly wound around the voice coil aluminum tube, the voice coil aluminum tube is sleeved on the voice coil fixing plate, the voice coil fixing plate is adhered to the center of the bottom of the voice coil vibration spring plate through a metal strong adhesive, the voice coil vibration column is in threaded connection with the voice coil vibration spring plate and matching internal threads arranged on the voice coil fixing plate through bottom external threads, and the voice coil vibration spring plate is fixed on the vibration cavity housing through screws.
10. A method for enhancing the resonance effect of a piano sound source plate as claimed in claim 9, wherein the copper coil has two layers of fifteen turns each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210621674.8A CN114974172A (en) | 2022-06-02 | 2022-06-02 | Method for enhancing resonance effect of piano sound source plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210621674.8A CN114974172A (en) | 2022-06-02 | 2022-06-02 | Method for enhancing resonance effect of piano sound source plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114974172A true CN114974172A (en) | 2022-08-30 |
Family
ID=82959865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210621674.8A Pending CN114974172A (en) | 2022-06-02 | 2022-06-02 | Method for enhancing resonance effect of piano sound source plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114974172A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070079693A1 (en) * | 2003-04-21 | 2007-04-12 | Roberto Valli | Pianoforte instrument exhibiting an additional delivery of energy into the sound board, and method for influencing the sound of a pianoforte instrument |
| CN103000170A (en) * | 2011-09-14 | 2013-03-27 | 雅马哈株式会社 | Acoustic effect impartment apparatus, and piano |
| CN103077699A (en) * | 2011-09-14 | 2013-05-01 | 雅马哈株式会社 | Keyboard instrument |
| CN205992430U (en) * | 2016-07-07 | 2017-03-01 | 沈泽涵 | A kind of hybrid Digital piano |
-
2022
- 2022-06-02 CN CN202210621674.8A patent/CN114974172A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070079693A1 (en) * | 2003-04-21 | 2007-04-12 | Roberto Valli | Pianoforte instrument exhibiting an additional delivery of energy into the sound board, and method for influencing the sound of a pianoforte instrument |
| CN103000170A (en) * | 2011-09-14 | 2013-03-27 | 雅马哈株式会社 | Acoustic effect impartment apparatus, and piano |
| CN103077699A (en) * | 2011-09-14 | 2013-05-01 | 雅马哈株式会社 | Keyboard instrument |
| CN205992430U (en) * | 2016-07-07 | 2017-03-01 | 沈泽涵 | A kind of hybrid Digital piano |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0627963A (en) | Electronic stringed instrument | |
| JPH09327098A (en) | Hearing aid | |
| CN209787426U (en) | Vibration sound production device and electronic equipment | |
| CN101970293A (en) | Electromagnetic transduction acoustic bridge | |
| CN2935690Y (en) | Adhesion-type audio transducer | |
| KR20130111976A (en) | Converter | |
| CN114974172A (en) | Method for enhancing resonance effect of piano sound source plate | |
| CN218041710U (en) | Earphone speaker that space utilization is high | |
| CN207427469U (en) | Novel piezoelectric ceramic type high pitch loudspeaker | |
| JP2015534121A (en) | Stringed instrument pickups and sustainers | |
| WO2017049966A1 (en) | Sound amplified guitar | |
| CN214675665U (en) | Helmholtz brake chamber horn | |
| CN210725322U (en) | Loudspeaker capable of improving high-frequency response | |
| CN105913831A (en) | Musical instrument and sound production method thereof | |
| CN201947415U (en) | Resonant sound box | |
| CN215010700U (en) | Double magnetic circuit loudspeaker | |
| CN101400010A (en) | Novel audio converter | |
| CN205016235U (en) | Sub - two -stringed bowed instrument of vibrating diaphragm electromagnetic sound pickup and electricelectric, electron horse -headed instrument | |
| CN201491247U (en) | Audio-frequency vibration device | |
| CN205900080U (en) | Musical instrument | |
| CN212910041U (en) | Loudspeaker adopting novel sound film | |
| CN218976823U (en) | Square loudspeaker with five-magnet structure | |
| CN217388999U (en) | Novel loudspeaker | |
| CN212936199U (en) | Waterproof ultrathin reverse magnetic circuit loudspeaker | |
| CN210725323U (en) | High-frequency loudspeaker capable of effectively preventing water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |