CN206993395U - A kind of external sound card - Google Patents

A kind of external sound card Download PDF

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Publication number
CN206993395U
CN206993395U CN201720877517.8U CN201720877517U CN206993395U CN 206993395 U CN206993395 U CN 206993395U CN 201720877517 U CN201720877517 U CN 201720877517U CN 206993395 U CN206993395 U CN 206993395U
Authority
CN
China
Prior art keywords
sound card
input
audio
channel
electrically
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720877517.8U
Other languages
Chinese (zh)
Inventor
王喆
张博
胡畅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Hi Tech Co Ltd
Original Assignee
Wuhan Hi Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Hi Tech Co Ltd filed Critical Wuhan Hi Tech Co Ltd
Priority to CN201720877517.8U priority Critical patent/CN206993395U/en
Application granted granted Critical
Publication of CN206993395U publication Critical patent/CN206993395U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of external sound card, including sound card shell, sound card body and external power supply, it is characterized in that the sound card body includes sound card main control chip, audio mixing chip, Earphone Amplifier, audio input channel and audio frequency output channel, the audio input channel includes two stereo input channels, described two stereo input channels are electrically connected with audio mixing chip, the audio mixing chip is electrically connected with by IIS interfaces and sound card main control chip, and the sound card main control chip is electrically connected with Earphone Amplifier;In the utility model, audio signal is input to audio mixing chip from two stereo input channels, it is then input to sound card main control chip, and audio signal is input to earphone by Earphone Amplifier, two-way input is blended together input all the way and realizes three road mixing sound effects, iphone mobile phones or PC outputs are connected by lighting or USB interface, great convenience is provided for main broadcaster and the music public.

Description

A kind of external sound card
Technical field
Audio Signal Processing field is the utility model is related to, more particularly to a kind of external sound card.
Background technology
Existing external sound card can not realize three road mixing sound effects mostly, come for the user for wanting to pursue personal settings Say, existing the needs of only having the sound card of fixed-audio tupe to be difficult to meet them.
Utility model content
Main purpose of the present utility model, which is to solve external sound card in the prior art, can not realize three road mixing sound effects Defect.
In order to solve the above technical problems, the utility model adopts the following technical scheme that:
A kind of external sound card, including sound card shell, sound card body and external power supply, the external power supply are connected with output and inserted Head, the sound card shell are provided with power input interface, and the output plug is electrically connected with power input interface, the sound card Body includes sound card main control chip, audio mixing chip, Earphone Amplifier, audio input channel and audio frequency output channel, the audio Input channel includes two stereo input channels, and described two stereo input channels are electrically connected with audio mixing chip, institute State audio mixing chip to be electrically connected with by IIS interfaces and sound card main control chip, the sound card main control chip and Earphone Amplifier are electrical Connect, being respectively equipped with two three-dimensional vocal inputs being connected with two stereo input channels on the sound card shell connects Mouth, the mobile terminal interface being connected with the audio input channel, the earphone interface being connected with the audio frequency output channel.
Further, the sound card body also includes company's wheat input channel and company's wheat output channel, the company Wheat input channel is electrically connected with Earphone Amplifier, and the even wheat output channel is electrically connected with sound card main control chip, the sound Card shell is provided with even wheat interface.
Further, the mobile terminal interface is lighting interfaces or USB interface.
Further, the sound card shell, which is provided with, can switch the even self-lock switch of wheat function and patchcord function.
Further, the sound card shell is provided with changeable monophonic and the sound channel conversion keys of stereo channel.
Further, the sound card shell is provided with earpiece volume plus-minus button and microphone volume plus-minus button.
As shown from the above technical solution, it is the advantages of the utility model with good effect:
1st, in the utility model, audio signal is input to audio mixing chip from two stereo input channels, then passes through IIS Interface is input to sound card main control chip, and audio signal is output to earphone by the sound card main control chip by Earphone Amplifier, Two-way input blendes together realizes three road mixing sound effects all the way, and monophonic output and three-dimensional voice output are realized by conversion keys and switched, Audio output interface is lighting interfaces or USB interface, and iphone can be met when audio output interface is lighting interfaces Mobile phone, great convenience is provided for main broadcaster and the music public, and sound output third dimension is strong, acoustical quality is more preferable;When Audio input interface can connect desktop computer or tablet personal computer when being USB interface.
2nd, the utility model small volume, it is convenient for carrying, it is easy to use, facilitate needed for outdoor activity.
3rd, the utility model circuit structure is simple, and audio board uses existing ripe circuit element and audio mixing core Piece, it is moderate, it is adapted to various levels of personnel practical.
Brief description of the drawings
Fig. 1 is the structural representation of sound card in the utility model one embodiment;
Embodiment
The exemplary embodiment of the utility model features and advantages will describe in detail in the following description.It should be understood that The utility model can have various changes in different embodiments, and it does not all depart from the scope of the utility model, and Explanation and diagram therein are treated as purposes of discussion in itself, and are not used to limit the utility model.
As shown in figure 1, the utility model embodiment provides a kind of external sound card, including sound card shell, sound card body and outer Power supply is put, the external power supply is connected with output plug, and the sound card shell is provided with power input interface, the output plug It is electrically connected with power input interface, the sound card body also includes sound card main control chip, audio mixing chip, Earphone Amplifier, sound Frequency input channel and audio frequency output channel, the audio input channel include two stereo input channels, described two solids Vocal input passage is electrically connected with audio mixing chip, and the audio mixing chip is electrically connected with by IIS interfaces and sound card main control chip, The sound card main control chip and Earphone Amplifier are electrically connected with, be respectively equipped with the sound card shell two with it is described stereo defeated The mobile terminal interface for enter two stereo input interfaces that passage is connected, being connected with the audio frequency output channel and institute State the earphone interface that audio frequency output channel is connected.In the utility model, described two stereo input interfaces are 3.5mm Linein interfaces, for the DNA mitochondrial DNA vocal input of ground three, the mobile terminal interface can connect computer or mobile phone, the earphone interface For connecting headset, in use, power input interface external power supply, mobile terminal interface connection iphone mobile phones or PC, audio Signal is input to audio mixing chip from two stereo input channels, and audio signal is passed to sound card by audio mixing chip by IIS interfaces Audio signal is input to earphone by main control chip, the sound card main control chip through Earphone Amplifier, and two-way input is blended together all the way Three road mixing sound effects are realized in input, and great convenience is provided for main broadcaster and the music public.
Preferably, the sound card body also includes company's wheat input channel and company's wheat output channel, the even wheat Input channel is electrically connected with Earphone Amplifier, and the even wheat output channel is electrically connected with sound card main control chip, the sound card Shell is provided with even wheat interface.When even wheat interface connects Lian Maihou, even wheat input channel input is input to sound through Earphone Amplifier Card main control chip, sound card main control chip exports audio signal through even wheat output channel, so as to the company of realization wheat.
Preferably, the mobile terminal interface is lighting interfaces or USB interface.When audio output interface is Iphone mobile phones can be connect during lighting interfaces, user can connect iphone mobile phones and carry out live, and be convenient for carrying.Connect electricity When source, lighting interfaces or USB interface do not take over machine or computer, earphone in connection, it is possible to achieve audio mixing is monitored.
Preferably, the sound card shell, which is provided with, can switch the even self-lock switch of wheat function and patchcord function.It is described Self-lock switch is located at sound card shell side, monophonic input function in use, signaling transfer point can be realized by upper self-lock switch button, That is monophonic input function and signaling transfer point can switch over.
Preferably, the sound card shell is provided with changeable monophonic and the sound channel conversion keys of stereo channel.Audio is believed Number audio mixing chip is input to from two stereo input channels, audio mixing chip is electrically connected by IIS interfaces and sound card main control chip Connect, audio signal is input to earphone by the sound card main control chip through Earphone Amplifier, is pressed when by upper monophonic, stereo conversion The conversion of monophonic and stereo channels can be achieved after key.
Preferably, the sound card shell is provided with earpiece volume plus-minus button and microphone volume plus-minus button, can control Earphone processed, the volume of microphone.In use, the conversion of volume can be realized by earpiece volume plus-minus button by taking earphone, such as Voice need to be carried out, the conversion that button realizes microphone volume size can be added and subtracted by microphone volume.

Claims (6)

1. a kind of external sound card, including sound card shell, sound card body and external power supply, the external power supply is connected with output and inserted Head, the sound card shell are provided with power input interface, and the output plug is electrically connected with power input interface, and its feature exists In the sound card body leads to including sound card main control chip, audio mixing chip, Earphone Amplifier, audio input channel and audio output Road, the audio input channel include two stereo input channels, described two stereo input channels with audio mixing chip It is electrically connected with, the audio mixing chip is electrically connected with by IIS interfaces and sound card main control chip, the sound card main control chip and earphone Amplifier is electrically connected with, and the sound card shell is provided with two solids being connected respectively with two stereo input channels Vocal input interface, the mobile terminal interface being connected with the audio input channel, it is connected with the audio frequency output channel Earphone interface.
2. external sound card according to claim 1, it is characterised in that it is logical that the sound card body also includes company's wheat input Road and company's wheat output channel, even wheat input channel and the Earphone Amplifier are electrically connected with, the even wheat output channel with Sound card main control chip is electrically connected with, and the sound card shell is provided with even wheat interface.
3. external sound card according to claim 1, it is characterised in that the mobile terminal interface be lighting interfaces or USB interface.
4. external sound card according to claim 1 or 2, it is characterised in that the sound card shell, which is provided with, can switch company The self-lock switch of wheat function and patchcord function.
5. external sound card according to claim 4, it is characterised in that the sound card shell be provided with changeable monophonic and The sound channel conversion keys of stereo channel.
6. external sound card according to claim 4, it is characterised in that the sound card shell is provided with earpiece volume plus-minus and pressed Key and microphone volume plus-minus button.
CN201720877517.8U 2017-07-19 2017-07-19 A kind of external sound card Expired - Fee Related CN206993395U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720877517.8U CN206993395U (en) 2017-07-19 2017-07-19 A kind of external sound card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720877517.8U CN206993395U (en) 2017-07-19 2017-07-19 A kind of external sound card

Publications (1)

Publication Number Publication Date
CN206993395U true CN206993395U (en) 2018-02-09

Family

ID=61404417

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720877517.8U Expired - Fee Related CN206993395U (en) 2017-07-19 2017-07-19 A kind of external sound card

Country Status (1)

Country Link
CN (1) CN206993395U (en)

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180209

Termination date: 20180719

CF01 Termination of patent right due to non-payment of annual fee