CN206713051U - A kind of external sound card - Google Patents
A kind of external sound card Download PDFInfo
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- CN206713051U CN206713051U CN201720332658.1U CN201720332658U CN206713051U CN 206713051 U CN206713051 U CN 206713051U CN 201720332658 U CN201720332658 U CN 201720332658U CN 206713051 U CN206713051 U CN 206713051U
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Abstract
The utility model provides a kind of external sound card, including at least two intelligent terminal incoming ends and downmixing unit；The intelligent terminal incoming end electrically connects with the downmixing unit, for being accessed for external smart terminal to input the first audio signal of the external smart terminal to the downmixing unit；The audio signal that the downmixing unit is used to receive it carries out audio mixing and forms audio signal, and the audio signal is exported through at least one intelligent terminal incoming end.External sound card of the present utility model, multiple intelligent terminal incoming ends are set, multiple intelligent terminals can be connected simultaneously, and by setting downmixing unit, output gives one or more intelligent terminals use of external sound card connection after the audio signal that multiple intelligent terminals input is mixed, the application scenarios of external sound card are enriched, meet the live demand of user.
Description
Technical field
It the utility model is related to Audio Signal Processing field, more particularly to a kind of external sound card.
Background technology
External sound card is used to realize that intelligent terminal (such as PC, mobile phone) is carried out with audio frequency apparatus (such as microphone, earphone)
The transmission of sound, the sound that user can input intelligent terminal using external sound card to audio frequency apparatus is handled, or is utilized external
Sound card exports the sound of intelligent terminal to audio frequency apparatus.
Many users use external sound card during performing network living broadcast is entered, but with to live requirement more and more higher,
The intelligent terminal quantity needed to use is also no longer limited to one, and user generally requires to enter the audio signal of multiple intelligent terminals
Used together for wherein one or more intelligent terminals after row processing, for example, user is wished the audio of two intelligent terminals of A, B
Signal uses to A terminals, or is used simultaneously to A, B.Existing sound card does not possess this function.
Utility model content
Based on this, the utility model provides a kind of external sound card, and the external sound card can access multiple external smarts simultaneously
Terminal, and the audio signal of the multiple external smart terminal can use for wherein one or more intelligent terminals.
The technical solution of the utility model is as follows：
A kind of external sound card, including including at least two intelligent terminal incoming ends and downmixing unit；The intelligent terminal
Incoming end electrically connects with the downmixing unit, for being accessed for external smart terminal to input the outside to the downmixing unit
First audio signal of intelligent terminal；The audio signal that the downmixing unit is used to receive it carries out audio mixing and forms audio mixing letter
Number, and the audio signal is exported through at least one intelligent terminal incoming end.
Further, the intelligent terminal incoming end includes usb interface module, USB HUB interface modules, tetra- sections of 3.5mm
Formula COBBAIF, micro USB analog audio interfaces, at least one of lightning interfaces.
Further, the USB HUB interface modules include USB interface, HUB main control chips and the first USB controller,
The USB interface electrically connects with the upstream port of the HUB main control chips, first USB controller and the HUB master controls core
The first downstream port electrical connection of piece, the USB interface are used to connect the external smart terminal, first USB controller
For connecting the downmixing unit.
Further, the external sound card also includes the second USB controller, its respectively with the HUB main control chips
Two downstream ports and downmixing unit electrical connection, pass through the USB interface and HUB for receiving the external smart terminal
Second audio signal is simultaneously inputted the downmixing unit by the second audio signal of main control chip transmission.
Further, it is defeated also to include the audio input interface that is electrically connected with the downmixing unit, audio for the external sound card
Outgoing interface；The audio input interface includes at least one in instrumental interface, circuit input interface, microphone interface, earphone microphone interface
Kind；The audio output interface includes at least one of earphone interface, circuit output interface, earphone microphone interface.
Further, the external sound card also includes the audio input interface electrically connected with second USB controller, institute
The second USB controller is stated to be additionally operable to the audio signal that the audio input interface inputs passing through the HUB main control chips and USB
Interface is sent to the external smart terminal；The audio input interface includes instrumental interface, circuit input interface, microphone and connect
At least one of mouth, earphone microphone interface.
Further, the external sound card also includes being electrically connected between the audio input interface and the downmixing unit
Audio effect processing unit, carry out audio effect processing for the audio signal that is inputted to the audio input interface.
Further, the external sound card also includes memory cell and broadcast unit；The memory cell is used to store
Audio file；The broadcast unit is electrically connected between the memory cell and the downmixing unit, and it is used to play the sound
Frequency file, and the audio signal that broadcasting is obtained is exported to the downmixing unit.
Further, the external sound card also includes control unit, and it is electrically connected with the broadcast unit, for controlling
State broadcast unit.
Further, the external sound card also includes audio mixing switch, and the audio mixing switch is electrically connected to the intelligent terminal
Between incoming end and the downmixing unit, believed with controlling the intelligent terminal incoming end to input the first audio of the downmixing unit
Number break-make.
External sound card of the present utility model, multiple intelligent terminal incoming ends are set, multiple intelligent terminals can be connected simultaneously, and
By setting downmixing unit, give external sound card connection one is exported after the audio signal that multiple intelligent terminals input is mixed
Or multiple intelligent terminals use, the application scenarios of external sound card are enriched, meet the live demand of user.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram for the external sound card that the embodiment of the utility model one provides；
Fig. 2 is the internal structure schematic diagram for the external sound card that another embodiment of the utility model provides；
Fig. 3 is the internal structure schematic diagram for the external sound card that another embodiment of the utility model provides；
Fig. 4 is the internal structure schematic diagram for the external sound card that another embodiment of the utility model provides；
Fig. 5 is the internal structure schematic diagram for the external sound card that another embodiment of the utility model provides；
Fig. 6 is the internal structure schematic diagram for the external sound card that another embodiment of the utility model provides；
Fig. 7 is the internal structure schematic diagram for the external sound card that another embodiment of the utility model provides.
Embodiment
The utility model is described in further detail below by embodiment combination accompanying drawing.As described below is this
The preferred embodiment of utility model, it is noted that for those skilled in the art, do not departing from this reality
On the premise of with new principle, some improvements and modifications can also be made, these improvements and modifications are also considered as of the present utility model
Protection domain.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
One or more feature can be expressed or be implicitly included to the feature of " first ", " second ".In the utility model
Description in, " multiple " are meant that two or more, unless otherwise specifically defined.
Refer to Fig. 1, in a kind of embodiment, the utility model provides a kind of external sound card, including at least two intelligence are eventually
Hold incoming end (the present embodiment is by taking three intelligent terminal incoming ends as an example) and downmixing unit；Each intelligent terminal incoming end with
Downmixing unit electrically connects, and is believed for being accessed for external smart terminal with inputting the first audio of external smart terminal to downmixing unit
Number；The audio signal that downmixing unit receives to it carries out audio mixing and forms audio signal, and by audio signal through at least one intelligence
Terminal incoming end is exported to external smart terminal.
External smart terminal can be the intelligent terminals such as computer, mobile phone, flat board.Accordingly, intelligent terminal incoming end can be with
Including usb interface module, USB HUB interface modules, 3.5mm four-part forms COBBAIF, micro USB analog audio interfaces,
At least one of lightning interfaces.For example, when external smart terminal is computer, intelligent terminal incoming end can be that USB connects
Mouth mold block or USB HUB interface modules；When external smart terminal is the mobile electronic devices such as mobile phone, flat board, intelligent terminal connects
It can be 3.5mm four-part forms COBBAIF, micro USB analog audio interfaces, lightning interfaces etc., intelligent terminal to enter end
Incoming end with pass through the audio port or data port of tone frequency channel wire or data wire and mobile electronic device connect.
Fig. 2 is referred to, usb interface module is made up of USB interface and the USB controller electrically connected with USB interface, USB
Interface is accessed for external smart terminal, and USB controller is electrically connected with downmixing unit, and the audio signal of external smart terminal is led to successively
Cross USB interface and USB controller input downmixing unit.USB interface includes A types mouth, Type B mouth, Type C mouths etc..
Fig. 3 is referred to, USB HUB interface modules include USB interface, HUB main control chips and the first USB controller, HUB
Main control chip has the upstream port electricity of upstream port and first, second downstream port, wherein USB interface and HUB main control chips
Connection, the first USB controller electrically connect with the first downstream port of HUB main control chips, and USB interface connects for external smart terminal
Enter, the first USB controller electrically connects with downmixing unit, and the audio signal of external smart terminal passes sequentially through USB interface, HUB master
Control chip and the first USB controller input downmixing unit.
The audio mixing mode of downmixing unit can be one kind in simulation audio mixing or digital audio mixing, and corresponding downmixing unit can
Think operational amplifier or DSP audio mixing chips.According to the type of downmixing unit, audio signal before downmixing unit is entered or
Person can carry out modulus/digital-to-analogue conversion in downmixing unit, the signal type in a manner of the audio mixing for meeting downmixing unit, this area
Technical staff, which can increase modulus/D/A conversion unit or select according to actual conditions, possesses modulus/analog conversion function
Codec chip etc., it should be understood that belong to the simple deduction or replace of present inventive concept, belong to the normal of those skilled in the art
Technological means is advised, is repeated no more in the utility model embodiment.
By the downmixing unit for setting multiple intelligent terminal incoming ends and being electrically connected with intelligent terminal incoming end, by multiple intelligence
Output gives one or more intelligent terminals use of external sound card connection after the audio signal mixing of energy terminal input, enriches
The application scenarios of external sound card, meet the live demand of user.In a kind of application scenarios, the external sound card difference of the utility model
An external computer and an outside mobile phone are connected to, external computer inputs musical background to external sound card, and outside mobile phone is separately operable
Audio software and live software, audio software input audio audio, the sound that external sound card provides external computer to external sound card
After the audio audio mixing that happy outside mobile phone provides, export to outside mobile phone and live output audio mixing is believed on live software
Number.In another application scenarios, on the basis of above-mentioned usage scenario, live software, external computer are also run in external computer
Live, live audio can be synchronized with outside mobile phone to provide for the musical background of external computer offer and outside mobile phone
Audio audio remixed audio.
In another embodiment, in the case where above-described embodiment intelligent terminal incoming end uses USB HUB interface modules,
Second downstream port of HUB main control chips can electrically connect with an expanding USB interface (not shown), outside available for connection
USB device so that external USB equipment and the external smart terminal of the upstream port of access HUB main control chips carry out usb data friendship
Mutually.
In another embodiment, referring to Fig. 4, using USB HUB interface moulds in above-described embodiment intelligent terminal incoming end
In the case of block, the external sound card of the utility model also includes the second USB controller, its respectively with the second of HUB main control chips
Port and downmixing unit electrical connection are swum, the transmitted for receiving external smart terminal by USB interface and HUB main control chips
Two audio signals, and the second audio signal is inputted into downmixing unit.Now controlled by USB interface, HUB main control chips and the first USB
Device processed forms the first sound card module of the external sound card of the utility model, by USB interface, HUB main control chips and the second USB controller
Form the rising tone card module of the external sound card of the utility model.The external smart terminal being connected with USB HUB interface modules is simultaneously
Two softwares (the first software and the second software) are run, the first software design patterns select the first sound card module, the choosing of the second software design patterns
Rising tone card module is selected, the first audio signal of the first software output and the second audio signal of the second software output pass through respectively
In first sound card module and rising tone card module input downmixing unit.External sound card not only realizes multiple intelligence in the present embodiment
The audio signal intercommunication of terminal shares, and also achieves and carries out the audio signal of multiple programs of an intelligent terminal mutually in all
With.Meanwhile the present embodiment can be passed by the way that there is provided two sound card modules, different audio signals by different sound card modules
Downmixing unit is delivered to, external sound card can handle different simultaneously in the case where only taking up an external-connected port of external computer
Audio signal so that user can obtain more abundant audio signal by the way that the progress of external sound card is live, enrich external sound
The audio-frequency function of card, further meet the live demand of user.
In another embodiment, please continue to refer to Fig. 4, on the basis of above-described embodiment, the external sound card of the utility model
Also include the audio input interface or audio output interface electrically connected with downmixing unit.Audio input interface include instrumental interface,
At least one of circuit input interface, microphone interface, earphone microphone interface；Audio output interface includes earphone interface, circuit output
At least one of interface, earphone microphone interface.
In another embodiment, please continue to refer to Fig. 4, on the basis of above-described embodiment, the external sound card of the utility model
Also include the audio input interface electrically connected with the second USB controller, the second USB controller is additionally operable to audio input interface is defeated
The audio signal entered is sent to external smart terminal by HUB main control chips and USB interface.Audio input interface connects including musical instrument
At least one of mouth, circuit input interface, microphone interface, earphone microphone interface.In a kind of usage scenario, external speaker and audio
Input interface connects, and the human voice signal of external speaker input connects via the second USB controller, HUB main control chips and USB successively
Oral instructions deliver to external computer progress software audio effect processing and form wet acoustical signal, and wet acoustical signal is again via USB interface, HUB master control cores
Piece and the second USB controller are sent to downmixing unit and carry out stereo process, and user need to only be provided external by the present embodiment
Sound card is that can be achieved to follow accompaniment to sing and have the live scene of audio effect, further meets the live demand of user.
In another embodiment, referring to Fig. 5, on the basis of above-described embodiment, the external sound card of the utility model also wraps
The audio effect processing unit being electrically connected between audio input interface and downmixing unit is included, for the sound inputted to audio input interface
Frequency signal carries out audio effect processing, and the audio signal through audio effect processing is exported to downmixing unit.Audio effect processing unit can be
DSP, FPGA audio effect processing chip.Audio effect processing unit can carry out reverberation, change voice, the audio effect processing such as electric sound, trill.Such as can
To select CCM1201DSP audio effect processing chips, but not limited to this, those skilled in the art can be according to the audio effect processing of reality
Demand selects suitable audio effect processing chip.
In another embodiment, referring to Fig. 6, on the basis of above-described embodiment, the external sound card of the utility model also wraps
Include memory cell and broadcast unit.Memory cell is used to store audio file, and broadcast unit is electrically connected to memory cell with mixing
Between sound unit, for playing the audio file of memory cell storage, and the audio signal that broadcasting is obtained is exported to audio mixing list
Member.Memory cell includes at least one of SD card interface, TF card interface, flash storage.Broadcast unit is deposited from conventional
Storage plays the broadcasting control chip commonly used in control chip, such as MP3 player.Audio file can be the forms such as MP3.This reality
Apply exception and put sound card and provide playing function, realize the sound of the audio signal of external sound card in itself and multiple external smart terminals
Frequency signal carries out intercommunication and shared.
In another embodiment, on the basis of above-described embodiment, the external sound card of the utility model also includes control unit,
It is electrically connected with broadcast unit, for controlling the broadcast unit.Control unit includes control key and controller, controller response control
The triggering generation control command of key is simultaneously sent to broadcast unit.Control key include play, pause, it is upper one head, next etc..
In another embodiment, referring to Fig. 7, on the basis of above-described embodiment, the external sound card of the utility model also wraps
Audio mixing switch is included, audio mixing switch is electrically connected between intelligent terminal incoming end and downmixing unit, and control intelligent terminal incoming end is defeated
Enter the break-make of the first audio signal of downmixing unit.The setting of audio mixing switch can make user as needed from multiple intelligent terminals
Among flexibly selection need the intelligent terminal of audio mixing, meet the individual demand of user.It is mixed to control that button can be set on sound card
The on-off of sound switch.The type switched according to the type audio mixing of intelligent terminal may include that computer audio mixing switch, mobile phone audio mixing are opened
Close etc..The type switched according to the type audio mixing of the audio output interface electrically connected with downmixing unit can include monitoring (i.e. ear
Machine or headset) audio mixing switch, circuit output audio mixing switch etc.
Above content is to combine specific embodiment further detailed description of the utility model, it is impossible to is assert
Specific implementation of the present utility model is confined to these explanations.Come for general technical staff of the technical field of the invention
Say, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (10)
1. a kind of external sound card, it is characterised in that including at least two intelligent terminal incoming ends and downmixing unit；
The intelligent terminal incoming end electrically connects with the downmixing unit, for being accessed for external smart terminal with to the audio mixing
Unit inputs the first audio signal of the external smart terminal；
The audio signal that the downmixing unit is used to receive it carries out audio mixing and forms audio signal, and the audio signal is passed through
At least one intelligent terminal incoming end output.
2. external sound card according to claim 1, it is characterised in that the intelligent terminal incoming end includes USB interface mould
Block, USB HUB interface modules, 3.5mm four-part forms COBBAIF, micro USB analog audio interfaces, lightning interfaces
It is at least one.
3. external sound card according to claim 2, it is characterised in that the USB HUB interface modules include USB interface,
HUB main control chips and the first USB controller, the USB interface electrically connect with the upstream port of the HUB main control chips, institute
The first downstream port that the first USB controller is stated with the HUB main control chips electrically connects, and the USB interface is described for connecting
External smart terminal, first USB controller are used to connect the downmixing unit.
4. external sound card according to claim 3, it is characterised in that the external sound card also includes the second USB controller,
It is electrically connected with the second downstream port of the HUB main control chips and the downmixing unit respectively, for receiving the outside
The second audio signal that intelligent terminal is transmitted by the USB interface and HUB main control chips is simultaneously defeated by second audio signal
Enter the downmixing unit.
5. the external sound card according to any one of Claims 1 to 4, it is characterised in that the external sound card also includes and institute
State audio input interface, the audio output interface of downmixing unit electrical connection；The audio input interface includes instrumental interface, circuit
At least one of input interface, microphone interface, earphone microphone interface；The audio output interface includes earphone interface, circuit output
At least one of interface, earphone microphone interface.
6. external sound card according to claim 4, it is characterised in that the external sound card also includes and the 2nd USB
The audio input interface of controller electrical connection, second USB controller are additionally operable to the sound for inputting the audio input interface
Frequency signal is sent to the external smart terminal by the HUB main control chips and USB interface；The audio input interface includes
At least one of instrumental interface, circuit input interface, microphone interface, earphone microphone interface.
7. external sound card according to claim 5, it is characterised in that the external sound card also includes being electrically connected to the sound
Audio effect processing unit between frequency input interface and the downmixing unit, for the audio letter inputted to the audio input interface
Number carry out audio effect processing.
8. the external sound card according to any one of Claims 1 to 4, it is characterised in that the external sound card also includes storage
Unit and broadcast unit；
The memory cell is used to store audio file；
The broadcast unit is electrically connected between the memory cell and the downmixing unit, and it is used to play the audio text
Part, and the audio signal that broadcasting is obtained is exported to the downmixing unit.
9. external sound card according to claim 8, it is characterised in that the external sound card also includes control unit, its with
The broadcast unit electrical connection, for controlling the broadcast unit.
10. the external sound card according to any one of Claims 1 to 4, it is characterised in that the external sound card also includes audio mixing
Switch, the audio mixing switch is electrically connected between the intelligent terminal incoming end and the downmixing unit, to control the intelligence
Terminal incoming end inputs the break-make of the first audio signal of the downmixing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332658.1U CN206713051U (en) | 2017-03-30 | 2017-03-30 | A kind of external sound card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332658.1U CN206713051U (en) | 2017-03-30 | 2017-03-30 | A kind of external sound card |
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| Publication Number | Publication Date |
|---|---|
| CN206713051U true CN206713051U (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720332658.1U Active CN206713051U (en) | 2017-03-30 | 2017-03-30 | A kind of external sound card |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111200774A (en) * | 2018-11-18 | 2020-05-26 | 北京塞宾科技有限公司 | Bluetooth sound card |
| CN111857641A (en) * | 2020-07-16 | 2020-10-30 | 深圳市十盏灯科技有限责任公司 | Live broadcast sound card expansion equipment for realizing simultaneous live broadcast of multiple mobile phones |
| CN112203182A (en) * | 2020-09-30 | 2021-01-08 | 深圳市豪恩声学股份有限公司 | Control system and method for earphone and earphone |
-
2017
- 2017-03-30 CN CN201720332658.1U patent/CN206713051U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111200774A (en) * | 2018-11-18 | 2020-05-26 | 北京塞宾科技有限公司 | Bluetooth sound card |
| CN111857641A (en) * | 2020-07-16 | 2020-10-30 | 深圳市十盏灯科技有限责任公司 | Live broadcast sound card expansion equipment for realizing simultaneous live broadcast of multiple mobile phones |
| CN112203182A (en) * | 2020-09-30 | 2021-01-08 | 深圳市豪恩声学股份有限公司 | Control system and method for earphone and earphone |
| CN112203182B (en) * | 2020-09-30 | 2023-08-01 | 深圳市豪恩声学股份有限公司 | Control system and method for earphone and earphone |
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