CN209657287U - A kind of wireless audio interface - Google Patents
A kind of wireless audio interface Download PDFInfo
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- CN209657287U CN209657287U CN201822275973.2U CN201822275973U CN209657287U CN 209657287 U CN209657287 U CN 209657287U CN 201822275973 U CN201822275973 U CN 201822275973U CN 209657287 U CN209657287 U CN 209657287U
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Abstract
The utility model proposes a kind of wireless audio interfaces, the downstream transmission for realizing Bluetooth audio signals is connect by the bluetooth uplink and downlink set up between mobile terminal, wherein not only single purposes can be realized by its built-in microphone and earphone, also more people's purposes further can be realized by built-in RF module, meets various application occasions needs.
Description
Technical field
The utility model belongs to audio frequency field, in particular to a kind of wireless audio interface.
Background technique
With the continuous development of mobile terminal product, various wireless audio devices are also more and more, such as bluetooth headset, indigo plant
Tooth speaker, Bluetooth microphone etc., but these product functions are also more single, it is difficult to meet user to diversification usage scenario
It needs.
Summary of the invention
In order to overcome the drawbacks of the prior art, the utility model proposes a kind of wireless audio interfaces, by setting up and moving
The downstream transmission of Bluetooth audio signals is realized in the bluetooth uplink and downlink connection of dynamic terminal room, wherein can not only pass through wheat built in it
Gram wind and earphone realize single purposes, also can meet a variety of applications further by the built-in more people's purposes of RF module realization
Occasion needs, and by this wireless audio interface, either self-recreation is still shared together with other people, can obtain good
Effect, especially suitable for K song occasion.
It proposes a kind of wireless audio interface, including Bluetooth audio frequency Transmit-Receive Unit, is used to set up indigo plant between mobile terminal
The connection of tooth audio receives the audio signal from mobile terminal and the audio signal is sent to DSP；It is characterized in that, including
At least one microphone receives the voice signal of user, and carries out acoustic-electric conversion to voice signal, and by the signal after conversion
It is sent to DSP；It further include wired input interface, it, can be defeated by the route of outside source after accessing external source of audio signals
Enter signal and is forwarded to DSP；It further include Transmit Receive Unit, which can receive and wirelessly send out from radio frequency audio frequency apparatus
The radio frequency audio signal sent, and radio frequency audio signal is sent to DSP；DSP, by the signal from each signal source according to
Family needs to carry out any mixing；Further, mixed signal is sent to Bluetooth audio frequency Transmit-Receive Unit by DSP, is received and dispatched by Bluetooth audio frequency
Mixed signal is sent back mobile terminal by unit, meanwhile, mixed signal is also sent to Transmit Receive Unit by DSP, is received by radio frequency
The mixed signal is sent to radio frequency playing device by bill member.
It wherein, further include wired earphone interface, the pluggable wired earphone of the interface or microphone earphone；Wired input interface
It is 3.5mm specification with wired earphone interface；Bluetooth uplink connection between wireless audio interface and mobile terminal is logical using RFCOMM
Road, downlink connection use the channel A2DP；The wireless connection of Transmit Receive Unit and radio frequency audio equipment room using 2.4G, 5.8G,
One of UHF, FM.
The signal of various existing audio devices can be concentrated or be distributed by this wireless audio interface, pass through inter-process
It is interacted again with mobile terminal afterwards, the network function for being especially available with mobile terminal realizes Function Extension.
Detailed description of the invention
Fig. 1 is the internal structure and working principle diagram of the wireless audio interface of the utility model
Specific embodiment
In conjunction with attached drawing 1, the wireless audio interface of the utility model is described in detail.The wireless audio interface 1 includes
Bluetooth audio frequency Transmit-Receive Unit 11, the unit 11 are connect for setting up Bluetooth audio frequency between mobile terminal 2, are received from shifting
Signal S is simultaneously sent to DSP 12 by the audio signal S of dynamic terminal 2；Including at least one microphone 13, the language of user is received
Sound signal, and acoustic-electric conversion is carried out to voice signal, and the signal Vmic after conversion is sent to DSP 12；It further include wired defeated
The line input signal Line in of outside source can be forwarded to by incoming interface 14 after accessing external source of audio signals
DSP 12；It further include Transmit Receive Unit 15, which, which can receive, is sent wirelessly to come from radio frequency audio frequency apparatus
Radio frequency audio signal RFin, the voice signal of the other users e.g. from RF microphone 3c and/or RF microphone earphone 3d,
And radio frequency audio signal RFin is sent to DSP 12；DSP 12 can as the signal processing maincenter of the wireless audio interface 1
To need to carry out any mixing according to user for the signal from each signal source, for example, by from mobile terminal 2 signal S and
User voice signal Vmic from built-in microphone 13 is mixed, or by the signal Line from wired input interface 15
In is mixed with user voice signal Vmic, can also will be from the signal RFin of Transmit Receive Unit 15 and signal S and/or signal
It is further that Line in is mixed ..., and mixed signal Mix is sent to Bluetooth audio frequency Transmit-Receive Unit 11 by DSP 12, by indigo plant
Mixed signal Mix is sent back mobile terminal 2 by tooth audio Transmit-Receive Unit 11, meanwhile, DSP 12 also sends mixed signal Mix
To Transmit Receive Unit 15, mixed signal Mix is sent to the radio frequency connecting with its radio frequency by Transmit Receive Unit 15 and is played
Device, such as speaker 3a and/or earphone 3b and/or microphone earphone 3d, make other users that can also hear mixed signal Mix；
Further, which further includes wired earphone interface 16, the pluggable wired earphone of the interface 16/microphone ear
Machine 17, when insertion is wired earphone, mixed signal Mix is also fed to wired by DSP 12 by the wired earphone interface 16
Earphone, when insertion is wire microphone earphone, DSP 12 not only can receive the wheat from the wire microphone earphone
Gram wind number is simultaneously mixed according to user demand with other signals, and mixed signal Mix is also fed to wired Mike simultaneously
Wind earphone.
Wherein, the bluetooth uplink connection between wireless audio interface 1 and mobile terminal 2 uses the channel RFCOMM, downlink connection
Use the channel A2DP；2.4G, 5.8G, UHF, FM can be used in the wireless connection of Transmit Receive Unit 15 and radio frequency audio equipment room
Mode, specific implementation are the prior art, and details are not described herein again；Wired input interface 14 can be with wired earphone interface
3.5mm specification.
The application method of the wireless audio interface 1 is illustrated below, further to help those skilled in the art
Solve the characteristic of the wireless audio interface 1.This wireless audio interface 1 can be used for K song, and application method is as follows, wireless when setting up
After bluetooth connection between audio interface 1 and mobile terminal 2, the transmission such as musical background of mobile terminal 2 to wireless audio interface 1,
User can be supervised by earphone earphone 17 or radio frequency speaker 3a, radio frequency earphone 3b or radio frequency microphone earphone 3d
Hear the musical background, user is sung by microphone 13 or radio frequency microphone 3c with accompanying, connect by wireless audio
The DSP of mouth 1 is by the performance of user and musical background audio mixing, and audio mixing is back to mobile terminal 2 again by wireless audio interface 1, by moving
Dynamic terminal 2 carries out subsequent processing；Further, which can also receive outside by wired input interface 14
The musical background of source of sound, such as MP3 player etc.；Wherein, Transmit Receive Unit can connect more radio frequency audio frequency apparatuses simultaneously,
Such as a radio frequency speaker, a radio frequency earphone are connected simultaneously, it can allow more people that can hear audio mixing, or can also connect simultaneously
More microphone earphones are connect, more people is made to carry out singing jointly, etc..
Other than for K song, can be used for network direct broadcasting, for example, helped music using wireless audio interface 1 and
Voice mixing, enhancing live streaming effect.
It will be understood by those skilled in the art that the rational modification carried out on the basis of utility model disclosure, should also belong to
In the protection scope of the utility model.
Claims (5)
1. a kind of wireless audio interface, including Bluetooth audio frequency Transmit-Receive Unit, are used to set up Bluetooth audio frequency between mobile terminal
Connection receives the audio signal from mobile terminal and the audio signal is sent to DSP；It is characterized in that, including at least one
A microphone receives the voice signal of user, and carries out acoustic-electric conversion to voice signal, and the signal after conversion is sent to
DSP；It further include wired input interface, it, can be by the line input signal of outside source after accessing external source of audio signals
It is forwarded to DSP；Further include Transmit Receive Unit, the unit can receive from radio frequency audio frequency apparatus be sent wirelessly come
Radio frequency audio signal, and radio frequency audio signal is sent to DSP；DSP, by the signal from each signal source according to user's needs
Carry out any mixing；Further, mixed signal is sent to Bluetooth audio frequency Transmit-Receive Unit by DSP, will by Bluetooth audio frequency Transmit-Receive Unit
Mixed signal sends back mobile terminal, meanwhile, mixed signal is also sent to Transmit Receive Unit by DSP, by Transmit Receive Unit
The mixed signal is sent to radio frequency playing device.
It further include wired earphone interface 2. wireless audio interface as described in claim 1, is characterized in that, the interface is pluggable
Wired earphone or microphone earphone.
3. wireless audio interface as claimed in claim 2, is characterized in that, wired input interface is with wired earphone interface
3.5mm specification.
4. wireless audio interface as described in claim 1, is characterized in that, in the bluetooth between wireless audio interface and mobile terminal
Row connection uses the channel RFCOMM, and downlink connection uses the channel A2DP.
5. wireless audio interface as described in claim 1, is characterized in that, the nothing of Transmit Receive Unit and radio frequency audio equipment room
Line connection is using one of 2.4G, 5.8G, UHF, FM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275973.2U CN209657287U (en) | 2018-12-31 | 2018-12-31 | A kind of wireless audio interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275973.2U CN209657287U (en) | 2018-12-31 | 2018-12-31 | A kind of wireless audio interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209657287U true CN209657287U (en) | 2019-11-19 |
Family
ID=68520017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822275973.2U Active CN209657287U (en) | 2018-12-31 | 2018-12-31 | A kind of wireless audio interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209657287U (en) |
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2018
- 2018-12-31 CN CN201822275973.2U patent/CN209657287U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200417 Address after: 100085 12A-2, B, block 28, information road, Haidian District, Beijing. Patentee after: BEIJING SAIBIN SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 100085 12A-2, B, block 28, information road, Haidian District, Beijing. Patentee before: Zhang Deming |