CN206313978U - A kind of external sound card - Google Patents
A kind of external sound card Download PDFInfo
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- CN206313978U CN206313978U CN201720015606.1U CN201720015606U CN206313978U CN 206313978 U CN206313978 U CN 206313978U CN 201720015606 U CN201720015606 U CN 201720015606U CN 206313978 U CN206313978 U CN 206313978U
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- audio signal
- sound card
- external sound
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Abstract
A kind of external sound card, it includes：First audio signal input end, it is used to obtain the first audio signal；Second audio signal input end, it is used to obtain the second audio signal；First audio signal output end；Coding and decoding mixer circuit, two input port connection corresponding with the first audio signal input end and the second audio signal input end respectively, the first output port is connected with the first audio signal output end；Sound effect processing circuit, it is connected with coding and decoding mixer circuit.This external sound card can realize the audio mixing and audio effect processing to multipath audio signal, so as to improve the availability and compatibility of product.Meanwhile, the external sound card can also realize the connection with headset, earphone and/or active loundspeakerses, therefore compared to existing external sound card, the interface resource of this external sound card is more enriched, and it preferably can be effectively connected with various external devices.
Description
Technical field
The utility model is related to audio signal processing technique field, specifically, is related to a kind of external sound card.
Background technology
With developing rapidly for Internet technology, the Related product on network audio/video also progresses into masses and regards
It is wild.The Related product of network audio/video generally needs to be equipped with external sound card, and the external sound card of different model has different sounds
Frequency processing function, the various demands for meeting users.
Existing external sound card is typically only capable to certain received that audio signal carries out audio frequency process all the way, for existing
A variety of application scenarios for, it cannot meet requirement.
Utility model content
To solve the above problems, the utility model provides a kind of external sound card, and the external sound card includes：
First audio signal input end, it is used to obtain the first audio signal；
Second audio signal input end, it is used to obtain the second audio signal；
First audio signal output end；
Coding and decoding mixer circuit, two input port respectively with first audio signal input end and the second audio
Signal input part correspondence is connected, and the first output port is connected with first audio signal output end；
Sound effect processing circuit, it is connected with the coding and decoding mixer circuit.
According to one embodiment of the present utility model, the sound effect processing circuit includes：
Key-press module；
Controller, it is connected with the key-press module；
Sound effect processor, it is connected with the controller and coding and decoding mixer circuit.
According to one embodiment of the present utility model, the controller is also connected with the coding and decoding mixer circuit.
According to one embodiment of the present utility model, the key-press module is pressed including some audios corresponding to specified audio
Key and/or some scene buttons corresponding to given scenario.
According to one embodiment of the present utility model, the sound effect processing circuit also includes：
Data storage, it is connected with the sound effect processor.
According to one embodiment of the present utility model, the sound effect processing circuit also includes：
3rd audio signal input end, it is used to obtain the 3rd audio signal；
Analog to digital conversion circuit, it is connected between the 3rd audio signal input end and sound effect processor.
According to one embodiment of the present utility model, the external sound card also includes：
Second audio signal output end；
4th audio signal input end, it is used to obtain the 4th audio signal；
First mixer circuit, two input port respectively with the second output port of the coding and decoding mixer circuit and
4th audio signal input end correspondence is connected, and output port is connected with second audio signal output end.
According to one embodiment of the present utility model, the external sound card also includes：
3rd audio signal output end, it is connected with the output end of first mixer circuit.
According to one embodiment of the present utility model, first mixer circuit includes adder.
According to one embodiment of the present utility model, the coding and decoding mixer circuit includes：
First amplifier, it is connected with first audio signal input end；
Second amplifier, it is connected with second audio signal input end；
Coding and decoding mixer, the connection corresponding with first amplifier and the second amplifier respectively of two input,
One output end forms the first output port of the coding and decoding mixer circuit.
External sound card provided by the utility model can realize the audio mixing and audio effect processing to multipath audio signal, from
And improve the availability and compatibility of product.Meanwhile, the external sound card can also be realized and headset, earphone and/or active
The connection of sound equipment, therefore compared to existing external sound card, the interface resource of this external sound card more enriches, and it can be preferably
Effectively it is connected with various external devices.
Additionally, this external sound card is controlled by setting corresponding key-press module and controller to sound effect processor
System, such user also can just control sound effect processor to produce different audios by key-press module, so as to meet difference
In the case of various application demands.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing wanted needed for description of the prior art does simple introduction：
Fig. 1 is the electrical block diagram of the external sound card according to the utility model one embodiment；
Fig. 2 is the physical circuit schematic diagram of the external sound card according to the utility model one embodiment.
Specific embodiment
Implementation method of the present utility model is described in detail below with reference to drawings and Examples, whereby to the utility model
How application technology means solve technical problem, and reach the implementation process of technique effect and can fully understand and implement according to this.
If it should be noted that do not constitute conflict, each feature in each embodiment and each embodiment in the utility model
Can be combined with each other, the technical scheme for being formed is within protection domain of the present utility model.
Meanwhile, in the following description, many details are elaborated for illustrative purposes, it is new to this practicality to provide
The thorough understanding of type embodiment.It will be apparent, however, to one skilled in the art, that the utility model can be without
Here detail or described ad hoc fashion are implemented.
Fig. 1 shows the structural representation of the external sound card that the present embodiment is provided.
As shown in figure 1, the external sound card that the present embodiment is provided is preferably included：First audio signal input end 101,
Two audio signal input ends 102, coding and decoding mixer circuit 103, the audio signal output end of sound effect processing circuit 104 and first
105。
Wherein, the first audio signal input end 101 is used to obtain the first audio signal, the second audio signal input end 102
For obtaining the second audio signal.The audio signal input end 101 of coding and decoding mixer circuit 103 and first and the second audio are believed
Number input 102 is connected, and it can transmit the first audio signal and the second sound for coming to the first audio signal input end 101
Frequency signal input part 102 transmits the second audio signal come and carries out stereo process (such as to the first audio signal and the second sound
Frequency signal is overlapped), and the audio signal obtained to stereo process carries out analog-to-digital conversion, the corresponding number that will then obtain
Word signal transmission is to the sound effect processing circuit 104 being attached thereto.It is pointed out that the audio signal mentioned by the utility model
Refer to the electric signal corresponding with audio (such as sound wave).
In the present embodiment, sound effect processing circuit 104 can be carried out to the data signal that the transmission of coding and decoding mixer circuit 103 comes
Corresponding audio effect processing, with so that with specific audio in processing the data signal for obtaining.After audio effect processing is completed, audio
Resulting corresponding digital signal can be fed back to coding and decoding mixer circuit 103 by process circuit 104.
Coding and decoding mixer circuit 103, can be to this after the data signal that sound effect processing circuit 104 is transmitted is received
Data signal carries out digital-to-analogue conversion, so as to obtain corresponding simulated audio signal.First audio signal output end 105 is solved with coding
The first output port connection of code mixer circuit 103, coding and decoding mixer circuit 103 can be transmitted the audio signal come for it
Transfer to corresponding external devices.
As shown in figure 1, in the present embodiment, according to actual needs, the external sound card can also be included：First mixer circuit
106th, the 4th audio signal input end 107, the second audio signal output end 108 and the 3rd audio signal output end 109.
Wherein, the 4th audio signal input end 107 is used to obtain the 4th audio signal.Two of first mixer circuit 106
Input port respectively with the second output port of coding and decoding mixer circuit 103 and the 4th audio signal input end 107 is corresponding connects
Connect, its output port and the second audio signal output end 108 and the 3rd audio signal output end 109 (such as active loundspeakerses port)
Connection.
In the present embodiment, the first mixer circuit 106 can transmit the audio signal come to coding and decoding mixer circuit 103
And the 4th audio signal input end 107 transmit the 4th audio signal come and carry out stereo process, and the sound for obtaining will be processed
Frequency signal passes through the second audio signal output end 108 for being attached thereto and the 3rd audio signal output end 109 is transmitted to corresponding
External devices.
It is pointed out that in different embodiments of the present utility model, according to actual needs, above-mentioned first audio signal
In input 101, the second audio signal input end 102, the 4th audio signal input end 107 and three audio signal output ends
Certain two or more both can be only fitted to same device, it is also possible to be arranged respectively in different components, the utility model is not
It is limited to this.
In the present embodiment, the first mixer circuit 106 preferably includes adder.Certainly, in other realities of the present utility model
Apply in example, the first mixer circuit 106 can also realize that the utility model is not limited equally using other rational devices or circuit
In this.
In order to clearly show structure, principle and the advantage of external sound card provided by the utility model, below
The external sound card physical circuit schematic diagram that the present embodiment with reference to shown in Fig. 2 is provided further is explained the external sound card
State.
As shown in Fig. 2 in the present embodiment, the first audio signal input end 101 is integrated with the second audio signal output end 108
In earphone microphone interface 201.Wherein, the first letter audio number input 101 forms the miaow head interface in earphone microphone interface 201, and it is used for
It is connected with the miaow head in headset, for receiving the audio signal (i.e. the first audio signal) that the transmission of miaow head comes；Second audio is believed
Number output end 108 forms the earphone interface in earphone microphone interface 201, and it is used to be connected with the earphone in headset.
Additionally, the first audio signal output end 105 and the 4th audio signal input end 107 are integrated in handset port 212.
Wherein, the first audio signal output end 105 forms the outlet line in handset port 212, by corresponding audio signal transmission
To mobile phone；4th audio signal input end 107 forms the incoming line in handset port 212, to receive the sound that mobile phone transmission comes
Frequency signal.
In the present embodiment, coding and decoding mixer circuit 103 is preferably included：First amplifier 202, the second amplifier 203
And coding and decoding mixer 204.Wherein, the input of the first amplifier 202 connects with the miaow head interface in earphone microphone interface 201
Connect, output end is connected with the first input end A1 of coding and decoding mixer 204, it is used for the first sound come to the transmission of miaow head interface
Frequency signal is amplified, and by the audio signal transmission after amplification to coding and decoding mixer 204.
Similarly, the input of the second amplifier 203 is connected with the second audio signal input end 102, output end with coding
The second input A2 connections of mixer 204 are decoded, it is used for the second audio come to the transmission of the second audio signal input end 102
Signal is amplified, and by the audio signal transmission after amplification to coding and decoding mixer 204.
Coding and decoding mixer 204 is receiving the audio that the first amplifier 202 and the second amplifier 203 are transmitted
After signal, stereo process is carried out to the two audio signals, and the simulated audio signal that stereo process is obtained carries out modulus
Conversion, then transmits to the sound effect processing circuit 104 being attached thereto the digital audio and video signals that analog-to-digital conversion is obtained.
In the present embodiment, sound effect processing circuit 104 is preferably included：Key-press module, controller 207 and sound effect processor
208.Wherein, key-press module includes some audio buttons 210 corresponding to specified audio and/or some corresponding to given scenario
Scene button 211.Wherein, above-mentioned audio button 210 and scene button 211 are connected with controller 207.When user press it is right
After answering button, controller 207 will produce corresponding control instruction according to the above-mentioned action of user, and the control instruction is transmitted
To the sound effect processor 208 and/or coding and decoding mixer 204 that are attached thereto, to control sound effect processor 208 and/or coding
Decoding mixer 204 is responded.
Specifically, in the present embodiment, user can control sound effect processor 208 by clicking on corresponding audio button 210
Generate corresponding audio.For example, the audio button 210 that controller 207 is clicked on according to user, can control sound effect processor
208 generation gift song, applause, hole song, slap in the face, rattle away, disdaining, the audio such as machine gun, small roars of laughter sound and big roars of laughter sound.
Similarly, in the present embodiment, user can control sound effect processor 208 by clicking on corresponding scene button 211
Simulate corresponding application scenarios sound.For example, the scene button 211 that controller 207 is clicked on according to user, can control audio
Processor 208 realize such as primary sound, specialty, prevalence, cry out wheat, dodge, Wa Wayin, male voice become female voice, female voice become male voice and company
The functions such as wheat.
Existing external sound card generally only has fixed audio processing mode, and this external sound card is for beginner
With certain convenience, but for the user for needing to meet various application demands simultaneously, existing has fixation
The external sound card of audio processing mode cannot meet requirement.
And the external sound card that the present embodiment is provided is by setting corresponding key-press module and controller come to audio
Reason device is controlled, and such user also can just control sound effect processor to produce different audios by key-press module, so that
Meet various application demands.
As shown in Fig. 2 in the present embodiment, sound effect processing circuit can also include data storage 209.Wherein, at audio
Reason device 208 is connected with data storage 209, and it can be by reading the corresponding data in data storage 209 or instruction come real
Existing corresponding function.
It is pointed out that according to actual needs, sound effect processing circuit 104 can also include：3rd audio signal is input into
End 205 and analog to digital conversion circuit 206.Wherein, the 3rd audio signal input end 205 is used to receive the 3rd audio signal, and will
Above-mentioned 3rd audio signal (signal of for example accompanying) is transmitted to the analog to digital conversion circuit 206 being attached thereto.Analog to digital conversion circuit 206
It is connected between the 3rd audio signal input end 205 and sound effect processor 208, it will can be changed according to the 3rd audio signal
The digital data transmission for obtaining is to sound effect processor 208.
In the present embodiment, sound effect processor 208 is connected with coding and decoding mixer 204, and it is used for according to controller 207
And/or analog to digital conversion circuit 206 transmits the instruction/signal for coming and transmits the DAB for coming to coding and decoding mixer 204
Signal is processed, and will be processed the corresponding digital audio and video signals that obtain and be fed back to coding and decoding mixer 204.
Coding and decoding mixer 204, can be to this after the digital audio and video signals that sound effect processor 208 is transmitted are received
Digital audio and video signals carry out digital-to-analogue conversion, so as to obtain corresponding simulated audio signal.In the present embodiment, coding and decoding mixer
The 204 above-mentioned simulated audio signals that can be generated itself are by the first output port Y1 of itself and handset port 212
First audio signal output end 105 is connected, and above-mentioned analog signal is passed through into the second output port Y2 and the first audio mixing of itself
The second input port connection of circuit 106.
It is pointed out that in different embodiments of the present utility model, according to actual needs, coding and decoding mixer
204 can both be realized using a chip, it would however also be possible to employ functional circuit that multiple difference chips are constituted realizes, this reality
Use new not limited to this.
For example, in one embodiment of the present utility model, coding and decoding mixer 204 can also be by mixer, volume
Code device and decoder are realized.Specifically, two inputs of mixer respectively with the first amplifier 202 and the second amplifier
203 correspondence connections, its output end is connected with encoder.Mixer can be transmitted to the first amplifier 202 and the second amplifier 203
The audio signal come carries out stereo process, and will process the audio signal transmission that obtains to the encoder being attached thereto.Encoder
The audio that mixer transmission comes can be carried out at analog-to-digital conversion, and respective digital audio signal transmission to the audio that will be converted to
Reason device 208.Decoder is connected with sound effect processor 208, and it can enter line number to the data signal that the transmission of sound effect processor 208 comes
Mould is changed, and the simulated audio signal that will be converted to is defeated by itself the first output port Y1 and the second output port Y2
Go out.
In the present embodiment, controller 207 is preferably connected by SPI interface with sound effect processor 208, by I2C buses
It is connected with coding and decoding mixer 204, sound effect processor 208 preferably passes through I2S buses connect with coding and decoding mixer 204
Connect.Certainly, in other embodiment of the present utility model, coding and decoding mixer 204, sound effect processor 208 and controller
Other rational connected modes, the utility model not limited to this can also be used between 207.
Simultaneously, it should be pointed out that in other embodiment of the present utility model, according to actual needs, audio effect processing electricity
Road can also be without configuration key-press module and controller 207, and coding and decoding mixer 204 and sound effect processor 208 can be according to pre-
The parameter (such as the relevant parameter stored in data storage 209) that first sets is run, and so contributes to simplify whole outer
Put the overall structure of sound card.
In the present embodiment, controller 207 is preferably by micro-control unit (Microcontroller Unit, abbreviation
MCU) realize, and sound effect processor 208 preferably by digital signal processor (Digital Signal Processor,
Abbreviation DSP) realize.It is pointed out that in other embodiment of the present utility model, coding and decoding mixer 204, audio
Processor 208 and controller 207 can also realize that the utility model is not limited to using other rational circuits or device
This.
As can be seen that external sound card provided by the utility model can be realized to multipath audio signal from foregoing description
Audio mixing and audio effect processing, so as to improve the availability and compatibility of product.Meanwhile, the external sound card can also be realized
With the connection of headset, earphone and/or active loundspeakerses, therefore compared to existing external sound card, the interface resource of this external sound card
More enrich, it preferably can be effectively connected with various external devices.
Additionally, this external sound card is controlled by setting corresponding key-press module and controller to sound effect processor
System, such user also can just control sound effect processor to produce different audios by key-press module, so as to meet difference
In the case of various application demands.
It should be understood that embodiment disclosed in the utility model is not limited to ad hoc structure disclosed herein, and answer
When the equivalent substitute for extending to these features that those of ordinary skill in the related art are understood.It is to be further understood that herein
The term for using is only used for describing the purpose of specific embodiment, and is not intended to limit.
" one embodiment " or " embodiment " mentioned in specification means special characteristic, the structure for describing in conjunction with the embodiments
Or characteristic is included at least one embodiment of the present utility model.Therefore, the phrase " that specification various places throughout occurs
Individual embodiment " or " embodiment " might not refer both to same embodiment.
Although above-mentioned example is used to illustrate principle of the utility model in one or more applications, for this area
For technical staff, in the case of without departing substantially from principle of the present utility model and thought, hence it is evident that can in form, usage and reality
Various modifications may be made in the details applied and without paying creative work.Therefore, the utility model is come by appending claims
Limit.
Claims (10)
1. a kind of external sound card, it is characterised in that the external sound card includes：
First audio signal input end, it is used to obtain the first audio signal；
Second audio signal input end, it is used to obtain the second audio signal；
First audio signal output end；
Coding and decoding mixer circuit, two input port respectively with first audio signal input end and the second audio signal
Input correspondence is connected, and the first output port is connected with first audio signal output end；
Sound effect processing circuit, it is connected with the coding and decoding mixer circuit.
2. external sound card as claimed in claim 1, it is characterised in that the sound effect processing circuit includes：
Key-press module；
Controller, it is connected with the key-press module；
Sound effect processor, it is connected with the controller and coding and decoding mixer circuit.
3. external sound card as claimed in claim 2, it is characterised in that the controller also with the coding and decoding mixer circuit
Connection.
4. as claimed in claim 2 or claim 3 external sound card, it is characterised in that the key-press module include it is some corresponding to specify
The audio button of audio and/or some scene buttons corresponding to given scenario.
5. as claimed in claim 2 or claim 3 external sound card, it is characterised in that the sound effect processing circuit also includes：
Data storage, it is connected with the sound effect processor.
6. as claimed in claim 2 or claim 3 external sound card, it is characterised in that the sound effect processing circuit also includes：
3rd audio signal input end, it is used to obtain the 3rd audio signal；
Analog to digital conversion circuit, it is connected between the 3rd audio signal input end and sound effect processor.
7. the external sound card as any one of claims 1 to 3, it is characterised in that the external sound card also includes：
Second audio signal output end；
4th audio signal input end, it is used to obtain the 4th audio signal；
First mixer circuit, two input port respectively with second output port and the 4th of the coding and decoding mixer circuit
Audio signal input end correspondence is connected, and output port is connected with second audio signal output end.
8. external sound card as claimed in claim 7, it is characterised in that the external sound card also includes：
3rd audio signal output end, it is connected with the output end of first mixer circuit.
9. external sound card as claimed in claim 7, it is characterised in that first mixer circuit includes adder.
10. the external sound card as any one of claims 1 to 3, it is characterised in that the coding and decoding mixer circuit bag
Include：
First amplifier, it is connected with first audio signal input end；
Second amplifier, it is connected with second audio signal input end；
Coding and decoding mixer, the connection corresponding with first amplifier and the second amplifier, respectively of two input
Output end forms the first output port of the coding and decoding mixer circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015606.1U CN206313978U (en) | 2017-01-06 | 2017-01-06 | A kind of external sound card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015606.1U CN206313978U (en) | 2017-01-06 | 2017-01-06 | A kind of external sound card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313978U true CN206313978U (en) | 2017-07-07 |
Family
ID=59248954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720015606.1U Ceased CN206313978U (en) | 2017-01-06 | 2017-01-06 | A kind of external sound card |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055620A (en) * | 2017-12-21 | 2018-05-18 | 北京唱吧科技股份有限公司 | A kind of Wireless sound card device |
| CN108062218B (en) * | 2018-01-16 | 2023-12-05 | 北京唱吧科技股份有限公司 | Sound card device |
-
2017
- 2017-01-06 CN CN201720015606.1U patent/CN206313978U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055620A (en) * | 2017-12-21 | 2018-05-18 | 北京唱吧科技股份有限公司 | A kind of Wireless sound card device |
| CN108055620B (en) * | 2017-12-21 | 2023-08-04 | 北京唱吧科技股份有限公司 | Wireless sound card device |
| CN108062218B (en) * | 2018-01-16 | 2023-12-05 | 北京唱吧科技股份有限公司 | Sound card device |
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