CN206991757U - A kind of digital piano with volume well-balanced adjustment function - Google Patents
A kind of digital piano with volume well-balanced adjustment function Download PDFInfo
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- CN206991757U CN206991757U CN201720652833.5U CN201720652833U CN206991757U CN 206991757 U CN206991757 U CN 206991757U CN 201720652833 U CN201720652833 U CN 201720652833U CN 206991757 U CN206991757 U CN 206991757U
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- 230000000694 effects Effects 0.000 claims abstract description 24
- 230000003321 amplification Effects 0.000 claims abstract description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 15
- 230000033764 rhythmic process Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 8
- 230000035945 sensitivity Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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- Reverberation, Karaoke And Other Acoustics (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
A kind of digital piano with volume well-balanced adjustment function, including piano playing unit（1）And microphone module（2）, it is characterised in that：The piano playing unit（1）And microphone module（2）Respectively with sounds effects editing processor（3）It is connected, sounds effects editing processor（3）With harmony accompaniment module（7）With rhythm accompaniment module（8）It is connected, sounds effects editing processor（3）With volume equalizer tuning module（4）It is connected, volume equalizer tuning module（4）With power amplification system（5）Input be connected, power amplification system（5）Output end respectively with bass horn（11）, mediant trumpet（12）And loudspeaker（13）It is connected, the utility model strong antijamming capability, circuit stability row is fairly good, and caused signal noise is low, frequency is wide, disclosure satisfy that all frequencies of piano playing, master volume, amount of bass, the louder volume exported can be adjusted arbitrarily, and expressive force is more abundant.
Description
Technical field
It the utility model is related to a kind of digital piano, more particularly to a kind of digital steel with volume well-balanced adjustment function
Qin, belong to piano musical instrument technical field.
Background technology
With the raising that people are required digital piano, digital piano is with outstanding tonequality and abundant function by vast
The favor of music-lover.The spies such as digital piano inheriting tradition piano range originally is broad, tone color is graceful, strong impact
Point, while receive pursuing for users but also with the advantages of price is economical, maintenance cost is low, feature-rich.With technology
There are some drawbacks in progressive and people, sampled voice sensitivity is not high to playing desired raising, existing digital piano, resist dry
Disturb indifferent, overall acoustics is bad, and is not easy to the extraneous performance of access and accompaniment voice signal, can not realize sound
Sound editing and processing, expressive force are not abundant enough.
The content of the invention
The purpose of this utility model is single for existing function, and sampled voice sensitivity is not high, and antijamming capability is not
By force, overall acoustics is bad, and is not easy to the extraneous performance of access and accompaniment voice signal, can not realize at sound-editing
The defects of reason and deficiency, a kind of rational in infrastructure, sampled voice high sensitivity is now provided, strong antijamming capability can be as needed
Extraneous performance and accompaniment voice signal are accessed, realizes sound-editing processing, one kind that overall acoustics is improved
Digital piano with volume well-balanced adjustment function.
To achieve the above object, technical solution of the present utility model is：It is a kind of with volume well-balanced adjustment function
Digital piano, including piano playing unit and microphone module, it is characterised in that：The piano playing unit and microphone module
The input with sounds effects editing processor is connected respectively, the input of sounds effects editing processor also with harmony accompaniment module and section
Play accompaniment module to be connected, the output end of sounds effects editing processor is connected with volume equalizer tuning module, volume equalizer
Tuning module is connected with the input of power amplification system, the output end of power amplification system respectively with bass horn, mediant trumpet and
Loudspeaker is connected.
The volume equalizer tuning module include low-noise broadband amplifier, resistance R1, resistance R2, resistance R3, resistance R4,
Resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, electricity
Hold C1, electric capacity C2, electric capacity C3, electric capacity C4, power supply V1 and power supply V2, resistance R1 respectively with resistance R3, resistance R4, electric capacity C1,
Resistance R5, resistance R6, resistance R12, resistance R11, electric capacity C4, resistance R10 and resistance R9 are in series to form loop, and resistance
R1 is connected with resistance R3 and resistance R9 respectively, and electric capacity C2 and electric capacity C3 are in parallel with resistance R5 and resistance R6 respectively, electric capacity C2
Be connected with resistance R7 and resistance R8 between electric capacity C3, after resistance R2 and resistance R14 series connection respectively with resistance R7 and resistance R8 phases
Connection, resistance R14 are in parallel with low-noise broadband amplifier.
The resistance R1 is connected with signal input part, resistance R14 and low-noise broadband amplifier respectively with signal output part
It is connected, signal input part is connected with sounds effects editing processor, and signal output part is connected with power amplification system respectively.
The low-noise broadband amplifier is connected with power supply V1 and power supply V2 respectively, low-noise broadband amplifier also with resistance
R13 is connected.
The input of the sounds effects editing processor is also connected with melody program request module and melody control module respectively.
The beneficial effects of the utility model are：
1st, the utility model employs sounds effects editing processor and volume equalizer tuning module, sounds effects editing processor energy
The extraneous performance of enough accesses as needed and accompaniment voice signal, realize sound-editing processing, volume equalizer tuning module
Can according to user set acoustics by transmission of sound signals to power amplification system, power amplification system control respectively bass horn,
Mediant trumpet and loudspeaker sounding, have reached good acoustics.
2nd, the utility model is rational in infrastructure, strong antijamming capability, and circuit stability row is fairly good, and caused signal is made an uproar
Sound is low, and frequency is wide, disclosure satisfy that all frequencies of piano playing, and the master volume exported, amount of bass, louder volume can be random
Regulation, expressive force are more abundant.
Brief description of the drawings
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model volume equalizer tuning module.
In figure：Piano playing unit 1, microphone module 2, sounds effects editing processor 3, volume equalizer tuning module 4, work(
Place system 5, MIDI music modules 6, harmony accompaniment module 7, rhythm accompaniment module 8, melody program request module 9, melody control module
10, bass horn 11, mediant trumpet 12, loudspeaker 13, low-noise broadband amplifier 14, signal input part 15, signal output part
16。
Embodiment
The utility model is described in further detail below in conjunction with brief description of the drawings and embodiment.
Referring to Fig. 1, Fig. 2, a kind of digital piano with volume well-balanced adjustment function of the present utility model, including piano bullet
Play unit 1 and microphone module 2, it is characterised in that：The piano playing unit 1 and microphone module 2 respectively with sounds effects editing
The input of processor 3 is connected, the input of sounds effects editing processor 3 also with harmony accompaniment module 7 and rhythm accompaniment module 8
It is connected, the output end of sounds effects editing processor 3 is connected with volume equalizer tuning module 4, volume equalizer tuning module 4
Be connected with the input of power amplification system 5, the output end of power amplification system 5 respectively with bass horn 11, mediant trumpet 12 and height
Sound loudspeaker 13 are connected.
The volume equalizer tuning module 4 includes low-noise broadband amplifier 14, resistance R1, resistance R2, resistance R3, resistance
R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance
R14, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, power supply V1 and power supply V2, resistance R1 respectively with resistance R3, resistance R4, electricity
Hold C1, resistance R5, resistance R6, resistance R12, resistance R11, electric capacity C4, resistance R10 and resistance R9 to be in series to form loop, and
And resistance R1 is connected with resistance R3 and resistance R9 respectively, electric capacity C2 and electric capacity C3 are in parallel with resistance R5 and resistance R6 respectively,
Be connected with resistance R7 and resistance R8 between electric capacity C2 and electric capacity C3, after resistance R2 and resistance R14 series connection respectively with resistance R7 and electricity
Resistance R8 is connected, and resistance R14 is in parallel with low-noise broadband amplifier 14.
The resistance R1 is connected with signal input part 15, and resistance R14 and low-noise broadband amplifier 14 are defeated with signal respectively
Go out end 16 to be connected, signal input part 15 is connected with sounds effects editing processor 3, signal output part 16 respectively with power amplification system 5
It is connected.
The low-noise broadband amplifier 14 is connected with power supply V1 and power supply V2 respectively, low-noise broadband amplifier 14 also with electricity
Resistance R13 is connected.
The input of the sounds effects editing processor 3 is also connected with melody program request module 9 and melody control module 10 respectively
Connect.
As shown in Figure 1, piano playing unit 1 and microphone module 2 the input phase with sounds effects editing processor 3 respectively
Connection, sounds effects editing processor 3 can will be transferred to power amplifier according to the acoustics that user is set after voice signal editing and processing
System 5.The input of sounds effects editing processor 3 and harmony accompaniment module 7, rhythm accompaniment module 8, melody program request module 9 and
Melody control module 10 is connected, and the output end of sounds effects editing processor 3 is connected with volume equalizer tuning module 4.
Volume equalizer tuning module 4 include low-noise broadband amplifier 14, resistance R1, resistance R2, resistance R3, resistance R4,
Resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, electricity
Hold C1, electric capacity C2, electric capacity C3, electric capacity C4, power supply V1 and power supply V2, resistance R1 respectively with resistance R3, resistance R4, electric capacity C1,
Resistance R5, resistance R6, resistance R12, resistance R11, electric capacity C4, resistance R10 and resistance R9 are in series to form loop, and resistance
R1 is connected with resistance R3 and resistance R9 respectively, and electric capacity C2 and electric capacity C3 are in parallel with resistance R5 and resistance R6 respectively, electric capacity C2
Be connected with resistance R7 and resistance R8 between electric capacity C3, after resistance R2 and resistance R14 series connection respectively with resistance R7 and resistance R8 phases
Connection, resistance R14 are in parallel with low-noise broadband amplifier 14.
For volume equalizer tuning module 4 using the operation principle of Wien bridge circuit, resistance R4 is equal with resistance R5 resistances,
Resistance R10 is equal with resistance R11 resistance, and electric capacity C1 is equal with electric capacity C2 capacitance, electric capacity C3 and electric capacity C4 capacitance phase
Deng, low-frequency range 63HZ-312HZ, and frequency quite stable.Low-noise broadband amplifier 14 is using low-noise broadband amplifier
NE5532, can effectively reduce circuit amplification process bottom make an uproar and because frequency it is too high caused by distortion.Wherein, resistance R1 is as volume
Main regulation potentiometer, adjustable main volume.Resistance R3 and resistance R6 is co-shaft duplex potentiometer, can produce resistance simultaneously
Change, resistance R3, resistance R6, resistance R4, resistance R5, electric capacity C1, electric capacity C2 determine Frequency, resistance R3 and resistance R6 resistances
It is worth mobility scale 0-20K, with the change of resistance R3 and resistance R6 resistances, low-frequency resonant frequency also changes, excursion
For 63HZ-312HZ.Resistance R9 and resistance R12 is coaxial duplex point position device, can produce change in resistance, resistance R9, resistance simultaneously
R12, resistance R10, resistance R11, electric capacity C3, electric capacity C4 determine Frequency, and resistance R9 and resistance R12 resistances mobility scale are 0-
20K, with the change of resistance R9 and resistance R12 resistances, high-frequency resonant frequency also changes, excursion 1.35KHZ-
6.64KHZ.Resistance R7, resistance R8 resistances are far longer than resonant circuit resistor, can be effectively isolated between different frequency signals
Interference.
Resistance R1 is connected with signal input part 15, resistance R14 and low-noise broadband amplifier 14 respectively with signal output part
16 are connected, and signal input part 15 is connected with sounds effects editing processor 3, and signal output part 16 is connected with power amplification system 5 respectively
Connect.In addition, low-noise broadband amplifier 14 is connected with power supply V1 and power supply V2 respectively, low-noise broadband amplifier 14 is gone back and resistance
R13 is connected, and adding resistance R13 makes entirety more stable, employs dual power supply, and signal is more stable, and audio fidelity factor is high.
The utility model is rational in infrastructure, strong antijamming capability, and circuit stability row is fairly good, and caused signal noise
Low, frequency is wide, disclosure satisfy that all frequencies of piano playing.The sound of singer is set to obtain beautification and profit by acoustic processing
Decorations, can play traditional piano work and popular piano music, can possess the various instrument tamber rhythm of insertion, automatic companion again
Play, harmony accompaniment, editor's melody, rhythm tempo control, the function such as transposition, expressive force more enriches.In addition, exported
Master volume, amount of bass, louder volume can be adjusted arbitrarily, strong operability.
Claims (5)
1. a kind of digital piano with volume well-balanced adjustment function, including piano playing unit（1）And microphone module（2）,
It is characterized in that：The piano playing unit（1）And microphone module（2）Respectively with sounds effects editing processor（3）Input
It is connected, sounds effects editing processor（3）Input also with harmony accompaniment module（7）With rhythm accompaniment module（8）It is connected, sound
Imitate editing and processing device（3）Output end and volume equalizer tuning module（4）It is connected, volume equalizer tuning module（4）With
Power amplification system（5）Input be connected, power amplification system（5）Output end respectively with bass horn（11）, mediant trumpet（12）
And loudspeaker（13）It is connected.
A kind of 2. digital piano with volume well-balanced adjustment function according to claim 1, it is characterised in that：The sound
Measure balanced device tuning module（4）Including low-noise broadband amplifier（14）, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5,
Resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, electric capacity C1, electricity
Hold C2, electric capacity C3, electric capacity C4, power supply V1 and power supply V2, resistance R1 respectively with resistance R3, resistance R4, electric capacity C1, resistance R5,
Resistance R6, resistance R12, resistance R11, electric capacity C4, resistance R10 and resistance R9 are in series to form loop, and resistance R1 distinguishes
It is connected with resistance R3 and resistance R9, electric capacity C2 and electric capacity C3 are in parallel with resistance R5 and resistance R6 respectively, electric capacity C2 and electric capacity
Resistance R7 and resistance R8 are connected between C3, is connected respectively with resistance R7 and resistance R8 after resistance R2 and resistance R14 series connection, electricity
Hinder R14 and low-noise broadband amplifier（14）It is in parallel.
A kind of 3. digital piano with volume well-balanced adjustment function according to claim 2, it is characterised in that：The electricity
Hinder R1 and signal input part（15）It is connected, resistance R14 and low-noise broadband amplifier（14）Respectively with signal output part（16）Phase
Connection, signal input part（15）With sounds effects editing processor（3）It is connected, signal output part（16）Respectively with power amplification system（5）
It is connected.
A kind of 4. digital piano with volume well-balanced adjustment function according to claim 2, it is characterised in that：It is described low
Make an uproar broadband amplifiers（14）It is connected respectively with power supply V1 and power supply V2, low-noise broadband amplifier（14）Also it is connected with resistance R13
Connect.
A kind of 5. digital piano with volume well-balanced adjustment function according to claim 1, it is characterised in that：The sound
Imitate editing and processing device（3）Input also respectively with melody request tune module（9）With melody control module（10）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720652833.5U CN206991757U (en) | 2017-06-07 | 2017-06-07 | A kind of digital piano with volume well-balanced adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720652833.5U CN206991757U (en) | 2017-06-07 | 2017-06-07 | A kind of digital piano with volume well-balanced adjustment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206991757U true CN206991757U (en) | 2018-02-09 |
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ID=61396366
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720652833.5U Expired - Fee Related CN206991757U (en) | 2017-06-07 | 2017-06-07 | A kind of digital piano with volume well-balanced adjustment function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206991757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109817189A (en) * | 2018-12-29 | 2019-05-28 | 深圳市蔚科电子科技开发有限公司 | Adjusting method, audio adjustment equipment and the system of audio signal |
-
2017
- 2017-06-07 CN CN201720652833.5U patent/CN206991757U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109817189A (en) * | 2018-12-29 | 2019-05-28 | 深圳市蔚科电子科技开发有限公司 | Adjusting method, audio adjustment equipment and the system of audio signal |
| CN109817189B (en) * | 2018-12-29 | 2023-09-08 | 珠海市蔚科科技开发有限公司 | Audio signal adjusting method, sound effect adjusting device and system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 |