CN110335577A - A kind of acoustic instrument audio enhancing system - Google Patents
A kind of acoustic instrument audio enhancing system Download PDFInfo
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- CN110335577A CN110335577A CN201910513543.6A CN201910513543A CN110335577A CN 110335577 A CN110335577 A CN 110335577A CN 201910513543 A CN201910513543 A CN 201910513543A CN 110335577 A CN110335577 A CN 110335577A
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- 230000002708 enhancing effect Effects 0.000 title description 5
- 230000000694 effects Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 230000005236 sound signal Effects 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- YZSKZXUDGLALTQ-UHFFFAOYSA-N [Li][C] Chemical compound [Li][C] YZSKZXUDGLALTQ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0091—Means for obtaining special acoustic effects
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of acoustic instrument audios to enhance system, comprising: the input terminal of forward gain adjustment circuit has the signal input interface connecting by data connecting line with the original sound pick-up output interface of musical instrument；Forward gain adjustment circuit output end is connect with ADC analog to digital conversion circuit input terminal；The output end of ADC analog to digital conversion circuit and the signal input part of main control unit connect；External key and adjusting knob are arranged in apparatus surface, connect with the first control terminal of main control unit；Tuning table unit is arranged in apparatus surface, connect with the second control terminal of main control unit；The input terminal of DAC D/A converting circuit and the first signal output end of main control unit connect；First output end of DAC D/A converting circuit and the signal input part of power amplifier unit connect；Power amplifier unit signal output end is connect with resonance loudspeaker signal input terminal；The present invention does not need to abandon the sound pick-up carried on musical instrument, richer playing effect is realized in the case where not connecing speaker, and reduce the purchase cost of user.
Description
Technical field
The present invention relates to musical instrument pickup technology fields more particularly to a kind of acoustic instrument audio to enhance system.
Background technique
As the improvement of people's living standards, learning and the people to play an instrument is more and more, during practice and performance
In order to improve the volume of acoustic instrument and the tone color of abundant acoustic instrument, many people can select acoustic instrument to pass through sound pick-up
Connection effect device and speaker come using.But in usually non-stage performance, because the convenience of effect device and speaker and making
With environmental restrictions, many people are inconvenient to connect speaker in practice and playing procedure.In order to solve current this puzzlement, market
Occur it is some can enhance to acoustic instrument in the case where being not connected to effect device and speaker acoustic instrument audio plus vibration pick up
Sound device.Adding vibration sound pick-up working principle is to first pass through pickup unit to pick up acoustic instrument sound, then the audio signal for arriving pickup
It handles by Digital Signal Processing dsp chip, to increase various melodious audios, is raised finally by the resonance being mounted on musical instrument
Sound device motivates musical instrument itself to generate vibration sounding, is achieved in a DSP treated that audio plays back, to obtain usually
It needs to connect the various audios that effect device and speaker are just able to achieve, and can increase the volume of acoustic instrument, greatly improve flat
When practice and the enjoyment that plays an instrument.
Due to adding vibration sound pick-up to belong to the product newly risen in recent years, many musical instruments are all only equipped with traditional sound pick-up.
And by prolonged development, traditional sound pick-up of some high-quality can provide very outstanding primary sound tone color, so still extensively
Favor by musician and ordinary user.And vibration sound pick-up is added to belong to the production comprising pickup unit one on current market
Product select on current market plus vibration sound pick-up that will abandon the traditional sound pick-up carried on original musical instrument.Due to adding vibration pickup
Use when device is more used in usually practice and daily performance, and add vibration sound pick-up pickup effect not on current market
Some high demands are able to satisfy, for example may require that the primary sound tone color for picking up high-quality when large-scale performance and high-quality are recorded, and
For the audio effect processing equipment for arranging in pairs or groups more professional.So traditional sound pick-up of some high-quality also occupies very big market part
Volume, and there is specific irreplaceability.Just because of many users still have the rigid use demand of high-quality tradition sound pick-up, from
And have to abandon very convenient and practical in usually practicing and playing plus vibration sound pick-up.
Summary of the invention
The present invention provides a kind of acoustic instrument audios to enhance system, to solve at present necessary in vibration sound pick-up using adding
The technical issues of abandoning the traditional sound pick-up carried on original musical instrument, so that it is happy to construct a kind of primary sound not comprising pickup unit
Device audio enhances system and makes full use of the original high-quality of musical instrument to pick up by taking audio signal from the original sound pick-up of musical instrument
Sound device is realized more on the basis of not needing to abandon the traditional sound pick-up carried on original musical instrument in the case where not connecing speaker
Playing effect abundant, and audio quality-improving is focused more on, and reduce the purchase cost of user.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of acoustic instrument audios to enhance system, comprising:
Mainboard, resonance loudspeaker and power supply；Forward gain adjustment circuit, ADC analog to digital conversion circuit, master control list are provided on the mainboard
Member, tuning table unit, DAC D/A converting circuit, power amplifier unit, external key and adjusting knob；
The forward gain adjustment circuit, which has, passes through what data connecting line was connect with the original sound pick-up output interface of musical instrument
Signal input interface；The forward gain adjustment circuit is for amplifying or decaying to signal level；
The signal that the ADC analog to digital conversion circuit is used to export the forward gain adjustment circuit carries out analog-to-digital conversion,
Analog audio signal is converted into digital signal；
The main control unit carries out the digital signal by the external key and adjusting knob regulating effect parameter
Calculation process increases various audios with control；
The tuning table unit, which is used to send to the main control unit, adjusts the digital signal parameters instruction, to calibrate pleasure
The accuracy in pitch of device；
The processed digital signal of the main control unit is converted into analog signal by the DAC D/A converting circuit；
The analog signal that the power amplifier unit exports the DAC D/A converting circuit carries out power amplification；
The resonance loudspeaker pushes resonance loudspeaker by the amplified signal of the power amplifier unit to motivate musical instrument
Itself generates vibration, issues the sound after audio effect processing；
The power supply is used to provide power supply for whole system.
Preferably, the mainboard further includes gain adjustment knob, and the gain adjustment knob and the prime increase
Beneficial adjustment circuit connection, for adjusting incoming signal level.
It preferably, further include display unit, the display unit is connect with the main control unit, for showing system
System data information.
Preferably, the display unit is OLED display screen, LCD display, section screen, dot matrix screen, charactron
Or any one in LED light.
Preferably, the mainboard further includes USB interface, and the USB interface is connect with the main control unit, is used for
It connects external device and realizes data transmission, and as charging interface.
Preferably, the mainboard further includes bluetooth module, and the bluetooth module is connect with the main control unit, is used
Data transmission is realized in carrying out bluetooth connection with external mobile device.
Preferably, the mainboard further includes linear convergent rate interface, the linear convergent rate interface and the DAC digital-to-analogue
Conversion circuit connection exports the mould of the DAC D/A converting circuit output for connecting with external voice box or other public address equipments
Quasi- signal.
Preferably, the mainboard further includes electric power management circuit, and the electric power management circuit and the power supply connect
It connects, is controlled for managing the charge and discharge of power supply, and to the power supply of system.
It preferably, further include shell, the shell includes face-piece and bottom case, and the display unit is arranged described
On face-piece, the resonance loudspeaker is embedded on the bottom case, double sided adhesive tape structure is additionally provided on the bottom case, for being pasted onto
The surface of acoustic instrument.
Preferably, the power supply is rechargeable lithium battery.
Compared with the prior art, the embodiment of the present invention has the following beneficial effects:
The present invention makes full use of the original high-quality pickup of musical instrument by taking audio signal from the original sound pick-up of musical instrument
Device, solve at present using plus vibration sound pick-up in have to abandon on original musical instrument carry traditional sound pick-up the technical issues of,
To constructing a kind of acoustic instrument audio enhancement device not comprising pickup unit, carried on original musical instrument not needing to abandon
On the basis of traditional sound pick-up, better pickup effect is realized, and focus more on audio quality-improving, and reduce user's
Purchase cost.
Detailed description of the invention
Fig. 1: the schematic diagram on musical instrument is set for the acoustic instrument audio enhancement device in the embodiment of the present invention；
Fig. 2: for the schematic diagram of the work structuring principle of the mainboard in the embodiment of the present invention；
Fig. 3: for the acoustic instrument audio enhancement device structural schematic diagram of the mainboard in the embodiment of the present invention；
Fig. 4: for the mainboard structure schematic diagram in the embodiment of the present invention；
Fig. 5: for the motherboard circuit connection schematic diagram in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 5 is please referred to, the preferred embodiment of the present invention provides a kind of acoustic instrument audio enhancing system, comprising: main
Plate, resonance loudspeaker and power supply；Forward gain adjustment circuit, ADC analog to digital conversion circuit, master control list are provided on the mainboard
Member, tuning table unit, DAC D/A converting circuit, power amplifier unit, external key and adjusting knob；
The forward gain adjustment circuit, which has, passes through what data connecting line was connect with the original sound pick-up output interface of musical instrument
Signal input interface；The forward gain adjustment circuit is for amplifying or decaying to signal level；
The signal that the ADC analog to digital conversion circuit is used to export the forward gain adjustment circuit carries out analog-to-digital conversion,
Analog audio signal is converted into digital signal；
The main control unit carries out the digital signal by the external key and adjusting knob regulating effect parameter
Calculation process increases various audios with control；
The tuning table unit, which is used to send to the main control unit, adjusts the digital signal parameters instruction, to calibrate pleasure
The accuracy in pitch of device；
The processed digital signal of the main control unit is converted into analog signal by the DAC D/A converting circuit；
The analog signal that the power amplifier unit exports the DAC D/A converting circuit carries out power amplification；
The resonance loudspeaker pushes resonance loudspeaker by the amplified signal of the power amplifier unit to motivate musical instrument
Itself generates vibration, issues the sound after audio effect processing；
The power supply is used to provide power supply for whole system.
By connecting line, the output interface of the original sound pick-up of musical instrument is connected to the signal input interface of the device, prime
Gain adjustment circuit reasonably amplifies or decays to signal level according to the level magnitudes of input signal；ADC analog-to-digital conversion
The signal that circuit exports forward gain adjustment circuit carries out analog-to-digital conversion, by analog audio signal be converted into digital signal with into
Row is handled in next step；After signal enters main control unit, signal is increased or decreased by external key and adjusting knob realization,
To increase and decrease audio, and the big minor adjustment to musical instrument accuracy in pitch is realized by tuning table unit button；DAC D/A conversion unit is by DSP
Processed digital signal is converted into analog signal, and the analog signal that power amplifier unit exports DAC carries out power amplification, and resonance is raised
Sound device is located at bottom of device, pushes resonance loudspeaker by the amplified signal of power amplifier unit to motivate musical instrument itself to generate vibration
It is dynamic, issue the sound after audio effect processing.
In the present embodiment, the mainboard further includes gain adjustment knob, and the gain adjustment knob and the prime increase
Beneficial adjustment circuit connection, for adjusting incoming signal level.
Suitable signal level can be obtained by gain adjustment knob, avoid incoming level it is too low cause volume too it is small and
Distorted signals caused by incoming level is excessively high.
It in the present embodiment, further include display unit, the display unit is connect with the main control unit, for showing system
System data information.
Display unit may also display sound effect parameters, external adjusting knob state other than the accuracy in pitch information of display tuning table
It has been shown that, bluetooth and USB connection status, electricity are shown.In the present embodiment, the display unit is OLED display screen, LCD is shown
Any one in display screen, section screen, dot matrix screen, charactron or LED light.
In the present embodiment, the mainboard further includes USB interface, and the USB interface is connect with the main control unit, is used for
It connects external device and realizes data transmission, and as charging interface.USB interface is for connecting the computer downloading customized sound of user
Color, while as charging interface.
In the present embodiment, the mainboard further includes bluetooth module, and the bluetooth module is connect with the main control unit, is used
Data transmission is realized in carrying out bluetooth connection with external mobile device.Bluetooth module connection mobile phone or other mobile devices are counted
According to transmission, the APP downloading customized tone color of user can be used to, can also be used to transmission accompaniment, drum machine, music signal.
In the present embodiment, the mainboard further includes linear convergent rate interface, the linear convergent rate interface and the DAC digital-to-analogue
Conversion circuit connection exports the mould of the DAC D/A converting circuit output for connecting with external voice box or other public address equipments
Quasi- signal.
In the present embodiment, the mainboard further includes electric power management circuit, and the electric power management circuit and the power supply connect
It connects, is controlled for managing the charge and discharge of power supply, and to the power supply of system.
It in the present embodiment, further include shell, the shell includes face-piece and bottom case, and the display unit is arranged described
On face-piece, the resonance loudspeaker is embedded on the bottom case, double sided adhesive tape structure is additionally provided on the bottom case, for being pasted onto
The surface of acoustic instrument.There is double-sided adhesive on bottom case, when installation only needs audio enhancement device to be pasted onto the surface of acoustic instrument
Suitable position, then be connected on the output interface of the included former sound pick-up of musical instrument with connecting line.
In the present embodiment, the power supply is rechargeable lithium battery.Lithium ion battery has liquid lithium ionic cell at present
(LIB) and two class of polymer Li-ion battery (PLB).Wherein, liquid lithium ionic cell refers to that Li+ inlaid scheme is positive and negative
The secondary cell of pole.Anode uses lithium compound-cobalt acid lithium, LiMn2O4, and cathode uses lithium-carbon intercalation compound.Lithium-ion electric
Pond since operating voltage is high, small in size, light weight, energy height, memory-less effect, pollution-free, self discharge is small, has extended cycle life,
It is the ideal energy carrier of 21 century development.
The invention has the following advantages that
1. outside mounting characteristics, user need to only be pasted audio enhancement device on musical instrument surface, then plug connecting line
Installation can be completed, do not need to destroy musical instrument original structure.
2. musical instrument is made full use of to carry sound pick-up originally, guarantee the tone color of high-quality.And audio enhancing function is not being needed
When, disassembly that can be easy.
3. good incoming signal level and impedance adaptability, and it is equipped with gain adjustment knob, variety classes of conveniently plugging into
Musical instrument use.
4. multiple musical instruments is facilitated to share, when user there are multiple musical instruments, it can efficiently be mounted on current desired to be played
On musical instrument, avoid repeating to purchase multiple audio enhancement devices.
5. customized audio download function, common adds vibration sound pick-up tamber effect to be fixed, which increases
Intensity device can load different custom effect types by USB connection computer or bluetooth connection mobile phone and other mobile devices,
Realize independent assortment and parameter regulation abundant.
6. Bluetooth audio frequency transfer function, can be by bluetooth connection mobile phone or other equipment, broadcasting while playing an instrument
Accompaniment, drum machine audio etc. or even musical instrument can be used as when not playing high-quality Baffle Box of Bluetooth come using.
The dsp chip of high calculation processing power built in 7., it is possible to provide at the audio of audio type and high-quality abundant
Reason ability, without using audio enhancing function when also can be used as independent device come using.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of acoustic instrument audio enhances system characterized by comprising mainboard, resonance loudspeaker and power supply；The mainboard
On be provided with forward gain adjustment circuit, ADC analog to digital conversion circuit, main control unit, tuning table unit, DAC D/A converting circuit,
Power amplifier unit, external key and adjusting knob；
The forward gain adjustment circuit has the signal connecting by data connecting line with the original sound pick-up output interface of musical instrument
Input interface；The forward gain adjustment circuit is for amplifying or decaying to signal level；
The signal that the ADC analog to digital conversion circuit is used to export the forward gain adjustment circuit carries out analog-to-digital conversion, by mould
Quasi- audio signal is converted into digital signal；
The main control unit carries out operation by the external key and adjusting knob regulating effect parameter, to the digital signal
Processing increases various audios with control；
The tuning table unit, which is used to send to the main control unit, adjusts the digital signal parameters instruction, to calibrate musical instrument
Accuracy in pitch；
The processed digital signal of the main control unit is converted into analog signal by the DAC D/A converting circuit；
The analog signal that the power amplifier unit exports the DAC D/A converting circuit carries out power amplification；
The resonance loudspeaker pushes resonance loudspeaker by the amplified signal of the power amplifier unit to motivate musical instrument itself
Vibration is generated, the sound after audio effect processing is issued；
The power supply is used to provide power supply for whole system.
2. acoustic instrument audio as described in claim 1 enhances system, which is characterized in that the mainboard further includes gain adjustment
Knob, the gain adjustment knob is connect with the forward gain adjustment circuit, for adjusting incoming signal level.
3. acoustic instrument audio as described in claim 1 enhances system, which is characterized in that it further include display unit, it is described aobvious
Show that unit is connect with the main control unit, is used for display system data information.
4. acoustic instrument audio as claimed in claim 3 enhances system, which is characterized in that the display unit is that OLED is shown
Any one in screen, LCD display, section screen, dot matrix screen, charactron or LED light.
5. acoustic instrument audio as described in claim 1 enhances system, which is characterized in that the mainboard further includes USB interface,
The USB interface is connect with the main control unit, realizes data transmission for connecting external device, and as charging interface.
6. acoustic instrument audio as described in claim 1 enhances system, which is characterized in that the mainboard further includes bluetooth mould
Block, the bluetooth module are connect with the main control unit, realize data transmission for carrying out bluetooth connection with external mobile device.
7. acoustic instrument audio as described in claim 1 enhances system, which is characterized in that the mainboard further includes linear convergent rate
Interface, the linear convergent rate interface are connect with the DAC D/A converting circuit, for connecting with external voice box or other public address equipments
It connects, exports the analog signal of the DAC D/A converting circuit output.
8. acoustic instrument audio as described in claim 1 enhances system, which is characterized in that the mainboard further includes power management
Circuit, the electric power management circuit are connect with the power supply, are carried out for managing the charge and discharge of power supply, and to the power supply of system
Control.
9. acoustic instrument audio as claimed in claim 3 enhances system, which is characterized in that it further include shell, the shell packet
Face-piece and bottom case are included, the display unit is arranged on the face-piece, and the resonance loudspeaker is embedded on the bottom case, described
Double sided adhesive tape structure is additionally provided on bottom case, for being pasted onto the surface of acoustic instrument.
10. acoustic instrument audio as described in claim 1 enhances system, which is characterized in that the power supply is chargeable lithium electricity
Pond.
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| CN201910513543.6A CN110335577A (en) | 2019-06-14 | 2019-06-14 | A kind of acoustic instrument audio enhancing system |
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| CN201910513543.6A CN110335577A (en) | 2019-06-14 | 2019-06-14 | A kind of acoustic instrument audio enhancing system |
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| CN111210682A (en) * | 2020-03-06 | 2020-05-29 | 占建峰 | Musical instrument with voice recognition system |
| CN112133271A (en) * | 2020-10-21 | 2020-12-25 | 深圳市卓乐科技有限公司 | IR vibration pickup |
| CN113645545A (en) * | 2021-07-01 | 2021-11-12 | 江西创成微电子有限公司 | External sound card |
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|---|---|---|---|---|
| CN111210682A (en) * | 2020-03-06 | 2020-05-29 | 占建峰 | Musical instrument with voice recognition system |
| CN112133271A (en) * | 2020-10-21 | 2020-12-25 | 深圳市卓乐科技有限公司 | IR vibration pickup |
| CN113645545A (en) * | 2021-07-01 | 2021-11-12 | 江西创成微电子有限公司 | External sound card |
| CN113645545B (en) * | 2021-07-01 | 2024-01-26 | 江西创成微电子有限公司 | External sound card |
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