CN207818186U - A kind of bridge and stringed musical instrument - Google Patents
A kind of bridge and stringed musical instrument Download PDFInfo
- Publication number
- CN207818186U CN207818186U CN201820114856.5U CN201820114856U CN207818186U CN 207818186 U CN207818186 U CN 207818186U CN 201820114856 U CN201820114856 U CN 201820114856U CN 207818186 U CN207818186 U CN 207818186U
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- bridge
- string
- piezoelectric transducer
- ontology
- stringed musical
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Abstract
The utility model discloses a kind of bridge, stringed musical instruments, the bridge includes ontology, several jacks are provided on the ontology, it is removably connected with piezoelectric transducer in the jack, one end of the piezoelectric transducer is equipped with solid string component, and the other end is equipped with pin, and the pin is connected with control circuit board, controller is provided in the control circuit board, the controller is electrically connected with the piezoelectric transducer.The stringed musical instrument is provided with above-mentioned bridge.The utility model detects the vibrations of string using piezoelectric transducer by the way that piezoelectric transducer is arranged in bridge, judges identification tone and chord using the vibration frequency of string.It is acquired compared to traditional microphone voice, accuracy rate higher, strong antijamming capability.Tone and chord can be equally identified when more people play together.
Description
Technical field
The present invention relates to stringed instrument adapterization technical field more particularly to a kind of bridge and stringed musical instruments.
Background technology
Stringed musical instrument refers to the musical instrument of pulling-over string sounding comprising guitar, You Likeke etc..Guitar includes guitar master
Body and string, guitar body include scroll head, neck, resonant tank and bridge；String connects scroll head and bridge.Guitar pronunciation is by hand
Finger fingers a stringed instrument, and string starts to shake, and when guitar string shakes, this vibrations can be transmitted to bridge, and vibrations are transmitted to face by bridge
Air pulsation in the resonance compression babinet of plate, panel and body generates sound wave, and sound is spread out of by the reflection of backboard from sound hole.
Current chord is identified by voice recognition, is included sound by sound collection equipments such as microphones, then by specific
Phonetic analysis software analyze played polyphonic ring tone.This voice recognition is at present in the accuracy and recognition speed of identification
Improve space, and can not exactly be identified when more people play together there are one drawback.
Invention content
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of bridges of detectable string vibration frequency.
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of stringed musical instruments.
The technical solution adopted in the present invention is：A kind of bridge comprising ontology is provided with several insert on the ontology
Hole, piezoelectric transducer is removably connected in the jack, and one end of the piezoelectric transducer is equipped with solid string component, the other end
Equipped with pin, the pin is connected with control circuit board, and controller, the controller and institute are provided in the control circuit board
State piezoelectric transducer electric connection.
Further, further include sensor fixture, the sensor fixture be connected together with the ontology to be formed it is recessed
Slot, the groove match with the piezoelectric transducer.
Further, the ontology is equipped with and solid string hole.
Further, the sensor fixture is equipped with and described solid string hole is corresponding leads string slot.
Further, the solid string component is equipped with string hole.
A kind of stringed musical instrument is provided with above-mentioned bridge.
The beneficial effects of the invention are as follows：The present invention is examined by the way that piezoelectric transducer is arranged in bridge using piezoelectric transducer
The vibrations for surveying string identify tone using the vibration frequency comparison of string.It is acquired compared to traditional microphone voice, accuracy rate
Higher, strong antijamming capability.Tone can be equally identified when more people play together.
Description of the drawings
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of vertical view of bridge；
Fig. 2 is a kind of explosive view of bridge；
Fig. 3 is a kind of structural schematic diagram of guitar.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Referring to figs. 1 to Fig. 2, it illustrates a kind of bridges comprising and ontology 1 is provided with several jacks 2 on the ontology 1,
Piezoelectric transducer 3 is removably connected in the jack, one end of the piezoelectric transducer 3 is equipped with solid string component 31, another
End is equipped with pin 32, and the solid string component 31 is equipped with string hole 9.The pin 32 is connected with control circuit board 4, the control electricity
Controller is provided on road plate 4, the controller is electrically connected with the piezoelectric transducer 3.
It is additionally provided with an accommodating chamber 6 on ontology 1, sensor fixture 5, institute are removably placed in the accommodating chamber 6
It states sensor fixture 5 to be connected together to form 1 groove 7 with the ontology 1, the groove 7 is located on socket 2, the groove 7
Match with solid string component 31.The ontology 2 is equipped with and solid string hole 8.The sensor fixture 5 is equipped with and the solid string
Hole 8 is corresponding to lead string slot 6.
Gu string component 31 (hardmetals such as copper, stainless steel material can be used) is equivalent to the effect of nut, the scroll head of string
It is stuck in solid string hole 8, string, which passes sequentially through, leads string slot 6, string hole 9, is then connect with scroll head.The bridge of the present invention can fit extensively
For the stringed musical instruments such as such as guitar, You Likeke.When instrument playing, piezoelectric transducer 3 detects string by solid string component 31 and shakes
It is dynamic, it exports as voltage signal, and voltage signal is sent to by controller by pin 32, then passes through to compare and judge to realize tone
With the identification of chord.The vibration frequency of string is directly acquired by piezoelectric transducer, it, can be with compared to by microphone acquisition sound
The sound of more directly accurate acquisition musical instrument.In addition bridge and the integrated design of sensor make convenient for post-production and musical instrument
User replaces.
As preferred embodiment, be additionally provided with bluetooth communication on the circuit board 4, the controller with it is described
Bluetooth module connects, and is realized by bluetooth module and realizes wireless data communication with intelligent terminals such as mobile phone, tablet computers.
A kind of stringed musical instrument is provided with above-mentioned bridge.Stringed musical instrument refers to the musical instrument of pulling-over string sounding comprising lucky
He, You Likeke etc..
As a preferred embodiment, as shown in figure 3, it illustrates a kind of guitars comprising scroll head 11, string
22, panel 33 and bridge 44, the bridge 44 are removably connected on the panel 33, and the string 22 connects bridge 44
With scroll head 11.The bridge 44 is bridge shown in Fig. 1 to Fig. 2.
A kind of string shock detection method, this approach includes the following steps：
S1 acquires the vibration frequency of string by piezoelectric transducer；
S2, controller pre-process the vibration frequency of string；
S3, controller carry out comparison identification to the vibration frequency of pretreated string, judge the tone of string.
Further, the step S2 specifically includes sub-step：
S21 carries out FFT operations to string vibration frequency；
S22 filters out the frequency of interference by HPS algorithms.
HPS algorithms are specially：Specially to the frequency-domain model periodic sample after FFT operations, (r=1 takes original, and r=2 takes
1,3,5,7 ... point, r=3 take 1,4,7,10 ... etc., and so on, find out multiple frequency signals), multiple frequencies of sampling are believed
It number is overlapped, chooses maximum value, and filter out other values.
It is further used as preferred embodiment, further includes step S4, the step S4 is specifically included：By every string
Frequency data compared with the chord feature templates data to prestore, judge corresponding chord.
It is further used as preferred embodiment, further includes step S5, the tone of chord and chordal information are sent
To mobile terminal.Including the communications such as bluetooth, ZigBee, wifi, by the way that chord to be sent to the APP of intelligent terminal,
Help to instruct the fingering of student's learning instrument.
When string shakes, piezoelectric transducer can sense, then output voltage signal to the ADC interface of controller, will
The analog signal of vibrations is converted into digital signal and is sampled, and acquires 1024 points and then carries out the FFT operations of 4096 points,
Data are changed into frequency-domain model, then the frequency multiplication relationship in frequency array is found out by HPS algorithms, obtain the maximum frequency of string vibrations
Rate, by being compared with base frequency, can extrapolate finger by position, then position data is introduced into to preserve chord special
The matrix of sign template data is checked, if find corresponding chord is just output to mobile phone terminal by chord.
It is to be illustrated to the preferable implementation of the present invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations or be replaced under the premise of without prejudice to spirit of that invention
It changes, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (6)
1. a kind of bridge comprising ontology is provided with several jacks on the ontology, it is characterised in that：It is removable in the jack
That unloads is connected with piezoelectric transducer, and one end of the piezoelectric transducer is equipped with solid string component, and the other end is equipped with pin, the pin
It is connected with control circuit board, controller is provided in the control circuit board, the controller and the piezoelectric transducer are electrical
Connection.
2. bridge according to claim 1, it is characterised in that：It further includes sensor fixture, and the sensor is fixed
Part is connected together to form groove with the ontology, and the groove matches with the piezoelectric transducer.
3. bridge according to claim 2, it is characterised in that：The ontology is equipped with solid string hole.
4. bridge according to claim 3, it is characterised in that：The sensor fixture is equipped with and the solid string hole phase
It is corresponding to lead string slot.
5. bridge according to any one of claims 1 to 4, it is characterised in that：The solid string component is equipped with string hole.
6. a kind of stringed musical instrument, it is characterised in that：It is arranged just like claim 3 to 5 any one of them bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114856.5U CN207818186U (en) | 2018-01-23 | 2018-01-23 | A kind of bridge and stringed musical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114856.5U CN207818186U (en) | 2018-01-23 | 2018-01-23 | A kind of bridge and stringed musical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207818186U true CN207818186U (en) | 2018-09-04 |
Family
ID=63325046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820114856.5U Active CN207818186U (en) | 2018-01-23 | 2018-01-23 | A kind of bridge and stringed musical instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207818186U (en) |
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2018
- 2018-01-23 CN CN201820114856.5U patent/CN207818186U/en active Active
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