CN206672626U - A kind of special high-fidelity Wireless pickup of musical instrument - Google Patents
A kind of special high-fidelity Wireless pickup of musical instrument Download PDFInfo
- Publication number
- CN206672626U CN206672626U CN201720277901.4U CN201720277901U CN206672626U CN 206672626 U CN206672626 U CN 206672626U CN 201720277901 U CN201720277901 U CN 201720277901U CN 206672626 U CN206672626 U CN 206672626U
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- China
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- radio frequency
- frequency chip
- musical instrument
- special high
- cobbaif
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Abstract
A kind of special high-fidelity Wireless pickup of musical instrument is the utility model is related to, mainly includes the functional modules such as microphone input module, COBBAIF, microcontroller, radio frequency chip, audio output, display screen and button.Under the control of the micro-controller, a kind of high-fidelity, Wireless pickup portable, cost is small are realized using the excellent in performance of audio signal interface chip and radio frequency chip.The utility model fidelity is high, strong antijamming capability, can greatly improve playing effect, and is easy to carry, cheap, has the value of popularization and application.
Description
Technical field
A kind of sound pick-up is the utility model is related to, is primarily referred to as a kind of special high-fidelity Wireless pickup of musical instrument.
Background technology
In large-scale live performance, because itself volume is smaller, acoustic instrument needs stage public address equipment, but at present
Wireless pickup be mostly be based on analog radio frequency technology, tonequality is lost larger, and is easily disturbed, led by other radio signals
Cause the decline of performing effect.Existing equipment also has the drawbacks such as not portable, price is high.
With the development of digital communication technology, the excellent digit chip of utility, can while high tone quality is ensured,
Abundant Radio Control Function is realized, hardware design can be completed disposably, and cost is relatively low, be with a wide range of applications.
Utility model content
When the utility model mainly solves large-scale performance at present, musical instrument is not high with sound pick-up fidelity, expensive
Problem, there is provided a kind of special high-fidelity Wireless pickup of musical instrument, the sound effect of musical instrument can be effectively improved, make stage table
It is now more satisfactory.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of special high-fidelity Wireless pickup of musical instrument, including microphone input module, the first COBBAIF, the first micro-control
Device, the first radio frequency chip, the first display screen and button processed, the second COBBAIF, the second microcontroller, the second radio frequency chip,
Second display screen and button, audio output；
Microphone input module, the first COBBAIF, the first radio frequency chip are sequentially connected, and the first microcontroller is respectively with
One COBBAIF, the first radio frequency chip, the first display screen and by key connection；Second microcontroller respectively with the second radio frequency core
Piece, the second COBBAIF, second display screen and by key connection, the second radio frequency chip, the second COBBAIF, audio output are successively
Connection；First radio frequency chip and the second radio frequency chip transmit information by antenna.
Further, the microphone input module is used to gather musical instrument sound, should ensure that picking up for tonequality maximum reduction degree
Take.
Further, the COBBAIF uses AK4637EN chips.It is 24 monophonics volume solution of a low-power consumption
Code device, and it is integrated with microphone and speaker amplifier；AK4637EN has powerful digital processing function, have 1 low pass,
2 high passes, 4+1 section bandpass filters, and outstanding AD（Analog-to-digital conversion）With DA（Digital-to-analogue conversion）Performance.
Further, the micro controller module uses STM8L101x chips.STM8L is 8 super low-power consumption microcontrollers
Device, and encapsulation volume is small, cheap, suitable for small size portable equipment.
Further, the radio frequency chip uses nRF2460 chips.The chip provides to be adjusted without compression 16 digit pulses coding
System（PCM）DAB, clear sound, time delay is less than 22ms, and cost is low.NRF2460 radio frequency chip modules, it is aerial to pass
Defeated speed is up to 4Mbps, and for monophonic sample frequency up to 32kHz, sampling precision is 16.In running, 4Mbps 2.4GHz
Radio circuit and the AFH optimized（AFH）Agreement and unique audio service quality（QoS）Engine combines, i.e.,
Make in challenging radio frequency environment, nRF2460 still keeps stable ANTENNAUDIO compossibility.
Further, the dio Output Modules are exported using Line., should be to greatest extent to make this equipment that there is portability
Ground limits power consumption, therefore does not enable built-in speaker amplifier function.
Musical instrument sound is gathered by microphone input module；The audio signal collected is sent into the first COBBAIF,
Operated by analog-to-digital conversion, amplification, digital filtering etc., retain musical instrument sound and remove uncorrelated noise；It is transmitted further to the first radio frequency
Chip, sent through the first radio frequency chip to the relevant position where the second radio frequency chip；Transmitted after being received by the second radio frequency chip
Digital-to-analogue conversion is carried out to the second Audio interface block, chip used premium properties can meet the high-fidelity demand of sound；Most
Voice signal is output to external equipment by output module afterwards.In whole process, microphone input module, the first COBBAIF with
First radio frequency chip works under the control of the first microcontroller, and is set on the first display screen and button, observes phase
Answer parameter.Second COBBAIF, the second radio frequency chip work with output module under the control of the second microcontroller, aobvious second
Set on display screen curtain and button, observe relevant parameter.
The beneficial effects of the utility model are：A kind of special high-fidelity Wireless pickup of musical instrument, uses COBBAIF mould
Block and radio frequency chip module realize fidelity it is high tonequality transmission, and be easy to carry, cost is cheap, easily operated
Advantage, it is with a wide range of applications.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in figure 1, a kind of special high-fidelity Wireless pickup of musical instrument, including microphone input module, the first audio connect
Mouth, the first microcontroller, the first radio frequency chip, the first display screen and button, the second COBBAIF, the second microcontroller,
Two radio frequency chips, second display screen and button, audio output；
Microphone input module, the first COBBAIF, the first radio frequency chip are sequentially connected, and the first microcontroller is respectively with
One COBBAIF, the first radio frequency chip, the first display screen and by key connection；Second microcontroller respectively with the second radio frequency core
Piece, the second COBBAIF, second display screen and by key connection, the second radio frequency chip, the second COBBAIF, audio output are successively
Connection；First radio frequency chip and the second radio frequency chip transmit information by antenna.
Microphone input module shown in Fig. 1 uses Panasonic WM-61A, and it has reached acoustic measurement rank, the width in 20kHZ
Frequency response curve fluctuation is spent within 3dB, ensure that the pickup of tonequality maximum reduction degree.
COBBAIF shown in Fig. 1 uses AK4637EN chips.It is 24 monophonic codecs of a low-power consumption, and
It is integrated with microphone and speaker amplifier.The Audio interface block, the built-in powerful digital modules of AK4637EN, including
1 low pass, 2 high passes, 4+1 section bandpass filters, and outstanding AD（Analog-to-digital conversion）With DA（Digital-to-analogue conversion）Performance.
Micro controller module shown in Fig. 1 uses STM8L101x chips.STM8L is 8 super low-power consumption microcontrollers, and is sealed
Small volume, cheap is filled, suitable for small size portable equipment.
Radio frequency chip shown in Fig. 1 uses nRF2460 chips.The chip is provided without 16 digit pulse coded modulations of compression
（PCM）DAB, clear sound, time delay is less than 22ms, and cost is low.
Radio frequency chip module shown in Fig. 1, air transfer rate are adopted up to 4Mbps, monophonic sample frequency up to 32kHz
Sample precision is 16.In running, 4Mbps 2.4GHz radio circuits and the AFH optimized（AFH）Agreement and solely
Special audio service quality（QoS）Engine combines, and in challenging radio frequency environment, nRF2460 is still kept
Stable ANTENNAUDIO compossibility.
Dio Output Modules shown in Fig. 1 are exported using Line.To make this equipment that there is portability, should limit to greatest extent
Power consumption, therefore built-in speaker amplifier function is not enabled.
Display screen shown in Fig. 1 and the interactive interface in key-press module include DAB control section, electricity is shown,
3.5mm audio inputs output excuse, mailing address setting etc..
The utility model realizes the high tonequality of fidelity using Audio interface block and radio frequency chip module and transmitted, and
And be easy to carry, the advantages of cost is cheap, easily operated, it is with a wide range of applications.
The utility model is the improvement and innovation carried out to hardware system, the software being directed to or processing method
（Process）Prior art is belonged to, is not belonging to innovative content of the present utility model；The content that the utility model does not elaborate
Belong to prior art.
Described above is only to preferred embodiment of the present utility model, and not the scope of the utility model is defined,
Therefore on the premise of the utility model design spirit is not departed from, this area ordinary skill technical staff is to described in the utility model
The equivalence changes or decoration that construction, feature and principle are made, all should fall into the scope of protection of the utility model.
Claims (5)
- A kind of 1. special high-fidelity Wireless pickup of musical instrument, it is characterised in that：Connect including microphone input module, the first audio Mouth, the first microcontroller, the first radio frequency chip, the first display screen and button, the second COBBAIF, the second microcontroller, Two radio frequency chips, second display screen and button, audio output；Microphone input module, the first COBBAIF, the first radio frequency chip are sequentially connected, the first microcontroller respectively with the first sound Frequency interface, the first radio frequency chip, the first display screen and by key connection；Second microcontroller respectively with the second radio frequency chip, Two COBBAIFs, second display screen and it is sequentially connected by key connection, the second radio frequency chip, the second COBBAIF, audio output； First radio frequency chip and the second radio frequency chip transmit information by antenna.
- A kind of 2. special high-fidelity Wireless pickup of musical instrument according to claim 1, it is characterised in that：Described two COBBAIFs use AK4637EN chips；It is 24 monophonic codecs of a low-power consumption, is integrated Microphone and speaker amplifier, AK4637EN include 1 low pass, 2 high passes, 4+1 section bandpass filters.
- A kind of 3. special high-fidelity Wireless pickup of musical instrument according to claim 1, it is characterised in that：Described two micro controller modules use STM8L101x chips；STM8L is 8 super low-power consumption microcontrollers.
- A kind of 4. special high-fidelity Wireless pickup of musical instrument according to claim 1, it is characterised in that：Described two radio frequency chips use nRF2460 chips, and the chip is provided without compression 16 digit pulse coded modulations (PCM) number Word tone frequency, clear sound, time delay is less than 22ms, and cost is low.
- A kind of 5. special high-fidelity Wireless pickup of musical instrument according to claim 1, it is characterised in that：The dio Output Modules are exported using Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277901.4U CN206672626U (en) | 2017-03-21 | 2017-03-21 | A kind of special high-fidelity Wireless pickup of musical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277901.4U CN206672626U (en) | 2017-03-21 | 2017-03-21 | A kind of special high-fidelity Wireless pickup of musical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206672626U true CN206672626U (en) | 2017-11-24 |
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ID=60373798
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720277901.4U Expired - Fee Related CN206672626U (en) | 2017-03-21 | 2017-03-21 | A kind of special high-fidelity Wireless pickup of musical instrument |
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| Country | Link |
|---|---|
| CN (1) | CN206672626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225435A (en) * | 2019-06-24 | 2019-09-10 | 卢宇庭 | A kind of portable mobile wireless high-fidelity sound pick-up |
-
2017
- 2017-03-21 CN CN201720277901.4U patent/CN206672626U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225435A (en) * | 2019-06-24 | 2019-09-10 | 卢宇庭 | A kind of portable mobile wireless high-fidelity sound pick-up |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20180321 |
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| CF01 | Termination of patent right due to non-payment of annual fee |