CN108513224A - Wireless microphone based on Bluetooth BLE transmission - Google Patents
Wireless microphone based on Bluetooth BLE transmission Download PDFInfo
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- CN108513224A CN108513224A CN201810377943.4A CN201810377943A CN108513224A CN 108513224 A CN108513224 A CN 108513224A CN 201810377943 A CN201810377943 A CN 201810377943A CN 108513224 A CN108513224 A CN 108513224A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 36
- 230000005236 sound signal Effects 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000012937 correction Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 4
- 241001062009 Indigofera Species 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
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Classifications
-
- 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
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Transmitters (AREA)
- Telephone Function (AREA)
Abstract
The present invention relates to apparatus for processing audio technical fields, specifically a kind of wireless microphone based on bluetooth BLE transmission, audio-frequency signal coding is compressed by data processing and control module, data processing and control module are encoded compressed audio signal and are transferred to electronic mobile device through bluetooth BLE by bluetooth BLE modules, rather than the audio transmission mode of the conventional Bluetooths such as BR/EDR, applied to such as mobile phone, Baffle Box of Bluetooth, loudspeaker etc., and then realize the transmission and playback of audio, it disclosure satisfy that the demand of being widely applied, such as K song amusements, square dance etc., and bluetooth BLE has low-power consumption, it is at low cost, higher applicability, it can not be limited by the application of the conventional Bluetooths such as BR/EDR.Original audio signal is sampled using digital AD, data processing and control module are packaged, such sound quality is guaranteed using processor compression, digital error correction and backoff algorithm in combination with flow control algorithm, autgmentability, good compatibility have very strong practical value and market popularization value.
Description
Technical field
The present invention relates to apparatus for processing audio technical fields, are based especially on the wireless microphone of bluetooth BLE transmission.
Background technology
Microphone (also known as microphone, microphone or microphone) is a kind of energy that voice signal can be converted to electric signal
Conversion equipment；With popularizing for the entertainment selections such as K songs, the application of microphone is also increasingly extensively and ripe.
Nowadays, wireless microphone has been the public address equipment that many speeches and classroom instruction often use, wireless microphone
It is to transmit signal using radio carrier, when use is not constrained by audio electric wire, flexible and convenient to use, therefore, by people
It is widely used.
But existing wireless microphone is normally only used as Karaoke, only the transmitting of single realization voice signal with
The function of reception, has a single function, and cannot use in other occasions, such as outdoor sound equipment, and can not with it is popular at present often
Electronic mobile device is used in combination, it is difficult to expanded function.
In addition, the current wireless microphone for existing on the market and using is typically all to use U sections, V sections or 2.4G frequencies
Section and FM frequency ranges, signal modulation mode is typically all directly to be modulated using analog signal, logical using 2.4G numbers there is also having
Letter completes the audio conversion of transmitting-receiving two-end, but receiving terminal must use particular device, not have versatility.
Simultaneously as being typically all to use non-universal wireless communication means, i.e. transmitting-receiving two-end that must all match phase
With the transceiver module of modulation system, that is, necessary mating presence is sent and received, such as send the sending module using U sections, received
End must also use U sections of receiving module, not have versatility equally.
Also, due to directly being modulated using analog signal, it is also necessary to ensure that the index of modulation is identical or deviation is little, to
Ensure that the distortion factor of waveform, the loss being so difficult to ensure during audio signal transmission, voice signal are converted into electric signal and exist
Decay in transmission, causes audio distortions, while the transmitting-receiving anti-interference of analog signal modulation is poor, be easy to be generated by external disturbance
Noise, off and on, sound quality is difficult to ensure sound, or even will appear cross talk phenomenon, cannot achieve digitizing technique management.
It is targetedly improved therefore, it is necessary to be made for the problem of existing wireless microphone, to improve the use of user
Experience.
Invention content
In view of the deficiency of the prior art, the purpose of the present invention is to provide a kind of based on bluetooth BLE transmission
Wireless microphone.
To achieve the goals above, the present invention adopts the following technical scheme that：
Based on the wireless microphone of bluetooth BLE transmission, including audio collection module, data processing and control module, bluetooth
BLE modules and power supply module, the power supply module and audio collection module, data processing and control module, bluetooth BLE modules
Electrical connection is powered to three, and data processing and control module are electrically connected with audio collection module, bluetooth BLE modules respectively, data
Processing and control module can compress audio-frequency signal coding, and bluetooth BLE modules can be wireless by data processing and control module
It is connected to the electronic mobile device with bluetooth BLE functions, compressed audio signal will be encoded and be transferred to by radio communication
Electronic mobile device realizes the transmission and playback of audio.
Optionally, the data processing and control module have processor, and coding compression is carried out to audio signal, to suitable
Answer the low bandwidth characteristic of bluetooth BLE.
Optionally, the audio collection module samples original audio signal, the data processing and control using number AD
Module is configured as, using high magnification compression, digital error correction and backoff algorithm, being packaged in combination with flow control algorithm.
Optionally, there is the APP mating with the microphone in the electronic mobile device, can receive and pass through bluetooth
The compressed digital signal of audio coding of BLE module transfers, makes it possible to directly pass through APP after corresponding uncompressed encoding
Applied to electronic mobile device recording, amplifies and entertain K and sing.
Optionally, the APP is configured to control by program, time-sharing multiplex bluetooth BLE communication channels, to logical
It crosses bluetooth BLE modules and realizes and transmitted simultaneously with more than two microphone signals, realize one drag two or one drag and apply more.
Optionally, there is setting interface and status display interface, setting interface microphone can be arranged, wrap on the APP
Include opening and closing, volume increase, volume down, audio configuration and the operating mode of microphone power, status display interface energy
Enough show the related operating parameter of equipment.
Optionally, which further includes key-press module, is electrically connected with the data processing and control module, including power supply
On ＆ off switch, volume increasing key, volume down key, audio grouping key and operating mode switch key.
Optionally, which is additionally provided with indicator light and small display screen, is used to indicate equipment working state, including supply
Whether electric situation, operational mode and relevant parameter are wirelessly connected successfully and signal strength.
Optionally, the power supply module includes battery.
Optionally, the electronic mobile device includes mobile phone, Baffle Box of Bluetooth, loudspeaker or removable computer.
Advantageous effect：As the above scheme is adopted, audio-frequency signal coding is compressed by data processing and control module,
Data processing and control module are encoded compressed audio signal Bluetooth transmission electron mobile device, example by bluetooth BLE modules
Such as mobile phone, Baffle Box of Bluetooth, Bluetooth amplifying device, and then realize the transmission and playback of audio, it disclosure satisfy that the demand of being widely applied,
Such as the amusement of K songs, square dance etc., and bluetooth BLE has the characteristics that low-power consumption, at low cost, good compatibility.The program can have
Effect evades the application limitation of the conventional Bluetooths such as BR/EDR, i.e., independent on the basis of not influencing original Bluetooth audio equipment connection
Realize being wirelessly input to and handling for audio.Bluetooth BLE connections by exclusive limitation, do not have connected the conventional Bluetooths such as BR/EDR and set
It can also be enabled at any time while standby, it is not necessary to disconnect and have conventional Bluetooth audio connection.APP is in audio data processing simultaneously
More flexible, operating mode and the software application of channel setting are not limited under by conventional Bluetooth audio connection.Audio collection
Module samples original audio signal using high-precision AD, data processing and control module using processor compression, digital error correction and
Backoff algorithm is packaged in combination with flow control algorithm, and such sound quality is guaranteed, low in energy consumption, at low cost, autgmentability, simultaneous
Capacitive is good, and APP can directly be coordinated to apply in mobile phone K song demands, thoroughly changes current K song power amplifier signals by holding Mike
The application mode of the secondary forwarding of wind, while can also easily realize one drag two application, i.e. two microphone simultaneous transmissions can
Satisfaction is widely applied demand, for example, amplify and explain and publicise, the amusement of K songs, square dance speaker etc..It is without increasing too many component, it is only necessary to
Built-in several function modules in microphone main body structure, processing and control means are integrated on a single die, structure letter
It is single compact, it is feature-rich, acoustical quality is notable, there is very strong practical value and market popularization value.
Description of the drawings
Fig. 1 is the overall structure module map of the embodiment of the present invention；
Fig. 2 is concrete application schematic diagram of the present invention；
Fig. 3 is the APP one drag two schematic diagrames of the embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It should also be noted that, term "comprises/comprising", " by ... form " or its any other variant be intended to
Non-exclusive inclusion, so that product, equipment, process or method including a series of elements include not only those elements,
And when needing can also include other elements that are not explicitly listed, or further include for this product, equipment, process or
The intrinsic element of method.In the absence of more restrictions, by sentence " including/include ... ", " by ... form " limit
Fixed element, it is not excluded that there is also other identical elements in product, equipment, process or the method including the element.
Referring to Fig. 1, based on the wireless microphone of bluetooth BLE transmission, including audio collection module, data processing and control mould
Block, bluetooth BLE modules and power supply module, the power supply module and audio collection module, data processing and control module, bluetooth
BLE modules are electrically connected, and are powered to three, data processing and control module are electrically connected with audio collection module, bluetooth BLE modules respectively
It connects, data processing and control module can compress audio-frequency signal coding, and bluetooth BLE modules can be by data processing and control mould
Block is wirelessly connected to the electronic mobile device with bluetooth BLE functions, will encode compressed audio signal by radio communication
It is transferred to electronic mobile device, realizes the transmission and playback of audio.
Referring to Fig. 2, the electronic equipment that ability is received with BLE is sent to by the bluetooth BLE communications of current comparative maturity,
Such as mobile phone, Baffle Box of Bluetooth, loudspeaker etc., it is wirelessly transmitted in electronic mobile device and electronic mobile device after audio collection
Background music synthesis after, then be transmitted on loudspeaker by electronic mobile device, transmission here can be wire transmission or nothing
Line is transferred on loudspeaker, and loudspeaker can be the included configuration of electronic mobile device the machine, can also be electronic mobile device separately
Baffle Box of Bluetooth, the loudspeaker etc. of connection are configured, and then realizes the transmission and playback of audio, disclosure satisfy that the demand of being widely applied,
Such as the amusement of K songs, explain and publicise activity etc., and bluetooth BLE have low-power consumption, low delay, it is at low cost, using flexible and convenient.
Also, the program can effectively evade the application limitation of the conventional Bluetooths such as BR/EDR, i.e., do not influencing original bluetooth
It is independent to realize being wirelessly input to and handling for audio on the basis of audio frequency apparatus connection.Establish the application of the conventional Bluetooths such as BR/EDR
It is that must match completion and establish to be continuously connected with channel, while there is exclusiveness, does not allow to reconnect other audio frequency apparatuses, and it is blue
Tooth BLE connections are not limited then above, can also be enabled at any time while having connected the conventional Bluetooths equipment such as BR/EDR, it is not necessary to disconnected
Open existing conventional Bluetooth audio connection.
Further, data processing and control module have processor, coding compression are carried out to audio signal, to adapt to indigo plant
The low bandwidth characteristic of tooth BLE.
Optionally, the audio collection module samples original audio signal, the data processing and control using number AD
Module is configured as, using high magnification compression, digital error correction and backoff algorithm, being packaged in combination with flow control algorithm.Such as
This sound quality is guaranteed, autgmentability, good compatibility.
Further, there is the APP mating with the microphone in the electronic mobile device, can receive and pass through bluetooth
The compressed digital signal of audio coding of BLE module transfers, makes it possible to directly pass through APP after corresponding uncompressed encoding
Applied to electronic mobile device recording, amplifies and entertain K and sing.It is thorough by directly coordinating APP to apply in mobile phone K song demands
Bottom changes current K and sings power amplifier signal by the application mode of the secondary forwarding of handheld microphone, has greatly expanded the use of microphone
Mode and function.
In addition, APP also more flexible, not operating modes under by conventional Bluetooth audio connection in audio data processing
And the software application limitation of channel setting.Referring to Fig. 3, the APP can also be configured as controlling by program, and time-sharing multiplex is blue
Tooth BLE communication channels while similar mobile phone catcher ring, can also connect other BLE equipment such as cardiotach ometer, to pass through bluetooth
BLE modules are realized to be transmitted with more than two microphone signals simultaneously, is realized one drag two or one is dragged and apply more, i.e. two microphones
Simultaneous transmission, further improves the expanded application of microphone, for example, multi-microphone amplify explain and publicise, the amusement of multi-microphone K songs,
It is used as multiple square dance speakers, there is very strong practical value and market popularization value.
Further, there is setting interface and status display interface, setting interface wheat can be arranged when K is sung on the APP
Gram wind includes opening and closing, volume increase, volume down, audio configuration and the operating mode of microphone power, status display
Interface can show the related operating parameter of equipment.In this way, carrying out the activities such as K songs by microphone using electronic mobile device
When, by the APP in electronic mobile device, related setting, user can be carried out to microphone in electronic mobile device
Just, easy to operate, the significant increase usage experience of user.
Further, which further includes key-press module, is electrically connected with the data processing and control module, including power supply
On ＆ off switch, volume increasing key, volume down key, audio grouping key and operating mode switch key.
The microphone is additionally provided with indicator light and small display screen, is used to indicate equipment working state, including electric power thus supplied,
Whether operational mode and relevant parameter are wirelessly connected successfully and signal strength.
In this way, can also adjust relevant parameter on microphone, while operating condition can be shown by display screen.
The power supply module includes battery, can be high capacity cell component commonly used in the art, rechargeable lithium battery etc..
The electronic mobile device includes mobile phone, Baffle Box of Bluetooth, loudspeaker or removable computer, common electronic mobile device
It can be used in combination with this wireless microphone, need to only download installation APP.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or substitutes by a similar method, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.Therefore, patent of the present invention
Protection domain should be determined by the appended claims.
Claims (10)
1. the wireless microphone based on bluetooth BLE transmission, it is characterised in that：Including audio collection module, data processing and control
Module, bluetooth BLE modules and power supply module, the power supply module and audio collection module, data processing and control module, indigo plant
Tooth BLE modules are electrically connected, and are powered to three, and data processing and control module are electric with audio collection module, bluetooth BLE modules respectively
Connection, data processing and control module can compress audio-frequency signal coding, and bluetooth BLE modules can be by data processing and control
Module is wirelessly connected to the electronic mobile device with bluetooth BLE functions, will encode compressed audio signal and pass through channel radio
Letter is transferred to electronic mobile device, realizes the transmission and playback of audio.
2. wireless microphone as described in claim 1, which is characterized in that the data processing and control module have processing
Device carries out coding compression to audio signal, to adapt to the low bandwidth characteristic of bluetooth BLE.
3. wireless microphone as claimed in claim 2, which is characterized in that the audio collection module is former using number AD samplings
Beginning audio signal, the data processing and control module are configured as using high magnification compression, digital error correction and backoff algorithm, together
When be packaged in conjunction with flow control algorithm.
4. wireless microphone as described in claim 1, which is characterized in that have and the Mike in the electronic mobile device
The mating APP of wind, can receive the compressed digital signal of audio coding by bluetooth BLE module transfers, and process is corresponding
Make it possible to directly be applied to electronic mobile device recording by APP, amplify and entertain K after uncompressed encoding to sing.
5. wireless microphone as claimed in claim 4, which is characterized in that the APP is configured to control by program,
Time-sharing multiplex bluetooth BLE communication channels are transmitted simultaneously with more than two microphone signals to realize, realize one drag two or one
It drags and applies more.
6. wireless microphone as claimed in claim 4, which is characterized in that have setting interface and status display on the APP
Interface, setting interface can match the characteristic of microphone, including the opening and closing of microphone power, volume increase, volume down
Small, audio configuration and operating mode, status display interface can show the related operating parameter of equipment.
7. wireless microphone as described in claim 1, which is characterized in that the microphone further includes key-press module, with the number
According to processing and control module electrical connection, including power switch key, volume increasing key, volume down key, audio grouping key and work
Mode switching key.
8. wireless microphone as described in claim 1, which is characterized in that the microphone is additionally provided with indicator light and small-sized display
Whether screen, is used to indicate equipment working state, including electric power thus supplied, operational mode and relevant parameter, be wirelessly connected successfully and letter
Number intensity.
9. wireless microphone as described in claim 1, which is characterized in that the power supply module includes battery.
10. wireless microphone as described in claim 1, which is characterized in that the electronic mobile device includes mobile phone, bluetooth sound
Case, loudspeaker or removable computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377943.4A CN108513224A (en) | 2018-04-25 | 2018-04-25 | Wireless microphone based on Bluetooth BLE transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377943.4A CN108513224A (en) | 2018-04-25 | 2018-04-25 | Wireless microphone based on Bluetooth BLE transmission |
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| CN108513224A true CN108513224A (en) | 2018-09-07 |
Family
ID=63383233
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810377943.4A Pending CN108513224A (en) | 2018-04-25 | 2018-04-25 | Wireless microphone based on Bluetooth BLE transmission |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108848436A (en) * | 2018-09-18 | 2018-11-20 | 广州音雅达科技有限公司 | Individual's Karaoke application method and system |
| CN109890022A (en) * | 2019-03-29 | 2019-06-14 | 努比亚技术有限公司 | Data transfer control method, mobile terminal and computer readable storage medium |
| CN110099335A (en) * | 2019-06-19 | 2019-08-06 | 安徽声讯信息技术有限公司 | A kind of Split intelligent sound box system and its implementation |
| WO2020132818A1 (en) * | 2018-12-24 | 2020-07-02 | 华为技术有限公司 | Wireless short-distance audio sharing method and electronic device |
| CN112616103A (en) * | 2020-12-29 | 2021-04-06 | 路姗姗 | Mask with Bluetooth microphone and method for communicating mask with mobile phone |
| WO2022231763A1 (en) * | 2021-04-26 | 2022-11-03 | Microsoft Technology Licensing, Llc | Face mask communication system with an embeddable microphone |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108848436A (en) * | 2018-09-18 | 2018-11-20 | 广州音雅达科技有限公司 | Individual's Karaoke application method and system |
| WO2020132818A1 (en) * | 2018-12-24 | 2020-07-02 | 华为技术有限公司 | Wireless short-distance audio sharing method and electronic device |
| CN113169760A (en) * | 2018-12-24 | 2021-07-23 | 华为技术有限公司 | Wireless short-distance audio sharing method and electronic equipment |
| CN113169760B (en) * | 2018-12-24 | 2022-08-09 | 华为技术有限公司 | Wireless short-distance audio sharing method and electronic equipment |
| CN109890022A (en) * | 2019-03-29 | 2019-06-14 | 努比亚技术有限公司 | Data transfer control method, mobile terminal and computer readable storage medium |
| CN109890022B (en) * | 2019-03-29 | 2023-12-08 | 努比亚技术有限公司 | Data transmission control method, mobile terminal and computer readable storage medium |
| CN110099335A (en) * | 2019-06-19 | 2019-08-06 | 安徽声讯信息技术有限公司 | A kind of Split intelligent sound box system and its implementation |
| CN112616103A (en) * | 2020-12-29 | 2021-04-06 | 路姗姗 | Mask with Bluetooth microphone and method for communicating mask with mobile phone |
| WO2022231763A1 (en) * | 2021-04-26 | 2022-11-03 | Microsoft Technology Licensing, Llc | Face mask communication system with an embeddable microphone |
| US11689933B2 (en) | 2021-04-26 | 2023-06-27 | Microsoft Technology Licensing, Llc | Face mask communication system with an embeddable microphone |
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Application publication date: 20180907 |
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