CN214591821U - Audio bidirectional transmission system - Google Patents
Audio bidirectional transmission system Download PDFInfo
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- CN214591821U CN214591821U CN202120755184.8U CN202120755184U CN214591821U CN 214591821 U CN214591821 U CN 214591821U CN 202120755184 U CN202120755184 U CN 202120755184U CN 214591821 U CN214591821 U CN 214591821U
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Abstract
The utility model discloses an audio frequency two-way transmission system, including a host computer and a plurality of slave machines. The host comprises a plurality of host digital-to-analog conversion modules and a host analog-to-digital conversion module; each slave machine comprises a slave machine analog-to-digital conversion module and a slave machine digital-to-analog conversion module. A master digital-to-analog conversion module is matched with a slave analog-to-digital conversion module; and each slave digital-to-analog conversion module is matched with the master analog-to-digital conversion module. The audio bidirectional transmission system can not only realize real-time bidirectional audio transmission between the host and the slave machines, but also ensure audio transmission between one host and a plurality of slave machines, thereby enriching the application scene of the audio transmission system.
Description
Technical Field
The utility model relates to an audio transmission technical field, in particular to two-way transmission system of audio frequency.
Background
In daily life and work scenes such as short video shooting, audio transmission between one host and a plurality of slaves is often required. For example, the director needs to conduct work commands with multiple departments through electronic devices such as an interphone, the interphone used by the director is the master, the interphone used by each department is the slave, the audio transmitted by the master needs to be accurately transmitted to the corresponding slave, and the slave can also transmit the audio to the master.
However, the existing audio transmission system can only perform one-to-one transmission, that is, one master can only perform audio bidirectional transmission with one slave, so that the single working mode is difficult to be applied to various scenes of real life and work.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an audio frequency two-way transmission system, it can improve above-mentioned problem.
The embodiment of the utility model is realized like this:
the utility model provides an audio frequency two-way transmission system, it includes:
a master and a plurality of slaves;
the host comprises a host communication module, a plurality of host digital-to-analog conversion modules, a host analog-to-digital conversion module and an audio socket; the input ends of the host digital-to-analog conversion modules are electrically connected with the host communication module, and the output ends of the host digital-to-analog conversion modules are electrically connected with the audio jack; the input end of the host analog-to-digital conversion module is electrically connected with the audio jack, and the output end of the host analog-to-digital conversion module is electrically connected with the host communication module;
each slave machine comprises a respective slave machine audio collector, a slave machine analog-to-digital conversion module, a slave machine communication module, a slave machine digital-to-analog conversion module and a slave machine player; the input end of the slave analog-to-digital conversion module is electrically connected with the slave audio collector, and the output end of the slave analog-to-digital conversion module is electrically connected with the slave communication module; the input end of the slave digital-to-analog conversion module is electrically connected with the slave communication module, and the output end of the slave digital-to-analog conversion module is electrically connected with the slave player;
the master digital-to-analog conversion module is matched with the slave analog-to-digital conversion module, and the master digital-to-analog conversion module is used for converting the digital signals converted by the slave analog-to-digital conversion module into corresponding analog signals again; each slave digital-to-analog conversion module is matched with the master analog-to-digital conversion module, and the slave digital-to-analog conversion module is used for converting the digital signals converted by the master analog-to-digital conversion module into corresponding analog signals again.
In the embodiment of the application, the Digital-to-Analog conversion module may be a Digital-to-Analog Converter (DAC); the Analog-to-Digital conversion module may be an Analog-to-Digital Converter (ADC).
The utility model discloses an audio frequency two-way transmission system, including a host computer and a plurality of slave machines. The host comprises a plurality of host digital-to-analog conversion modules and a host analog-to-digital conversion module; each slave machine comprises a slave machine analog-to-digital conversion module and a slave machine digital-to-analog conversion module. The slave analog-to-digital conversion module in the slave can convert the analog audio signal of a slave user into a digital audio signal, and the digital audio signal is transmitted to the host through the communication module after being processed; the host comprises a plurality of host digital-to-analog conversion modules corresponding to the slave analog-to-digital conversion modules, and is used for restoring the digital audio signals converted by the slave analog-to-digital conversion modules into analog audio signals again and playing the analog audio signals to a host user through a host audio player. The host analog-to-digital conversion module in the host can convert analog audio signals sent by a host user into digital audio signals, and the digital audio signals are processed and then transmitted to the appointed slave through the communication module; each slave computer comprises a slave computer digital-to-analog conversion module corresponding to the master computer analog-to-digital conversion module, and is used for restoring the digital audio signals converted by the master computer analog-to-digital conversion module into analog audio signals again and playing the analog audio signals to slave computer users through a slave computer player.
It can be understood that the utility model discloses a two-way transmission system of audio frequency not only can realize the host computer and follow the real-time two-way audio transmission between the machine, can also guarantee the audio transmission between a host computer and a plurality of machine of following, has richened audio transmission system's application scene.
In the optional embodiment of the present invention, the slave analog-to-Digital conversion module and the slave communication module are further connected to a Digital Signal Processor (DSP), and the Digital Signal processor is configured to perform Digital processing on the Digital audio Signal output from the slave analog-to-Digital conversion module.
It will be appreciated that the digital audio signal processed by the digital signal processor will have the effects of voice, reverberation, etc.
In an optional embodiment of the present invention, the host communication module includes a host antenna and a host rf module, which are connected to each other, and the host rf module is electrically connected to an input terminal of the host digital-to-analog conversion module and an output terminal of the host analog-to-digital conversion module, respectively; each slave communication module comprises a slave antenna and a slave radio frequency module which are connected with each other, and the slave radio frequency module is respectively and electrically connected with the input end of the slave digital-to-analog conversion module and the output end of the digital signal processor; the master antenna and the slave antenna communicate by radio.
It is understood that the master RF module and the slave RF module may be 5.8G Radio Frequency (RF) modules.
In an alternative embodiment of the present invention, the host further comprises a first host amplifier and a second host amplifier; the output end of each host digital-to-analog conversion module is electrically connected with the input end of the host first amplifier, and the output end of the host first amplifier is electrically connected with the audio jack; the input end of the host second amplifier is electrically connected with the audio jack, and the output end of the host second amplifier is electrically connected with the input end of the host analog-to-digital conversion module.
It can be understood that the host first amplifier is used for amplifying the analog audio signals converted by the respective host digital-to-analog conversion modules; the second amplifier of the host is used for amplifying the digital audio signal converted by the analog-to-digital conversion module of the host.
In an alternative embodiment of the present invention, each of the slave machines further comprises a respective slave machine first amplifier and a slave machine second amplifier; the input end of the first amplifier of the slave in each slave machine is electrically connected with the slave audio collector, and the output end of the first amplifier of the slave machine is electrically connected with the analog-to-digital conversion module of the slave machine; the input end of the slave machine second amplifier in each slave machine is electrically connected with the slave machine digital-to-analog conversion module, and the output end of the slave machine second amplifier is electrically connected with the slave machine player.
The slave computer first amplifier is used for amplifying the analog audio signal collected by the slave computer audio collector; and the slave second amplifier is used for amplifying the analog audio signal converted by the slave digital-to-analog conversion module.
In an alternative embodiment of the present invention, the slave audio collector includes at least one of a microphone, and a sound head.
In an alternative embodiment of the present invention, the slave player includes at least one of a speaker and an earphone.
In the optional embodiment of the present invention, the audio jack is used for connecting a host audio collector or a host audio player.
It is to be appreciated that the host audio collector can be at least one of a microphone, and a sound head. The host audio player may be at least one of a speaker and a headphone.
Has the advantages that:
the utility model discloses a two-way transmission system of audio frequency not only can realize the host computer and from the real-time two-way audio transmission between the machine, can also guarantee a host computer and a plurality of audio transmission from between the machine, has richened audio transmission system's application scene.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an audio bidirectional transmission system provided by the present invention;
fig. 2 is a schematic structural diagram of another audio bidirectional transmission system provided by the present invention.
Reference numerals:
the system comprises a host 100, a host communication module 110, a host antenna 111, a host radio frequency module 112, a host digital-to-analog conversion module 120, a host analog-to-digital conversion module 130, an audio jack 140, a host first amplifier 150, a host second amplifier 160, a slave 200, a slave audio collector 210, a slave analog-to-digital conversion module 220, a slave communication module 230, a slave antenna 231, a slave radio frequency module 232, a slave digital-to-analog conversion module 240, a slave player 250, a digital signal processor 260, a slave first amplifier 270 and a slave second amplifier 280.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, the utility model provides an audio frequency bidirectional transmission system, it includes: one master 100 and a plurality of slaves 200.
The host 100 comprises a host communication module 110, a plurality of host digital-to-analog conversion modules 120, a host analog-to-digital conversion module 130 and an audio socket 140; the input ends of the host digital-to-analog conversion modules 120 are electrically connected with the host communication module 110, and the output ends of the host digital-to-analog conversion modules 120 are electrically connected with the audio jack 140; the input end of the host analog-to-digital conversion module 130 is electrically connected with the audio jack 140, and the output end of the host analog-to-digital conversion module 130 is electrically connected with the host communication module 110.
Each of the plurality of slaves 200 includes a respective slave audio collector 210, a slave analog-to-digital conversion module 220, a slave communication module 230, a slave digital-to-analog conversion module 240, and a slave player 250; the input end of the slave analog-to-digital conversion module 220 is electrically connected with the slave audio collector 210, and the output end of the slave analog-to-digital conversion module 220 is electrically connected with the slave communication module 230; the input end of the slave digital-to-analog conversion module 240 is electrically connected with the slave communication module 230, and the output end of the slave digital-to-analog conversion module 240 is electrically connected with the slave player 250.
A master digital-to-analog conversion module 120 is matched with a slave analog-to-digital conversion module 220, and the master digital-to-analog conversion module 120 is used for converting the digital signals converted by the slave analog-to-digital conversion module 220 into corresponding analog signals again; each slave digital-to-analog conversion module 240 is matched with the master analog-to-digital conversion module 130, and the slave digital-to-analog conversion module 240 is configured to convert the digital signal converted by the master analog-to-digital conversion module 130 into a corresponding analog signal again.
In the embodiments of the present application, the Digital-to-Analog conversion modules may be Digital-to-Analog converters (DACs); the Analog-to-Digital converters may be Analog-to-Digital converters (ADCs).
The utility model discloses an audio frequency two-way transmission system, including a host computer 100 and a plurality of from machine 200. The host 100 includes a plurality of host digital-to-analog conversion modules 120 and a host analog-to-digital conversion module 130; each slave 200 includes a slave analog-to-digital conversion module 220 and a slave digital-to-analog conversion module 240. The slave analog-to-digital conversion module 220 in the slave 200 can convert the analog audio signal of the slave 200 user into a digital audio signal, process the digital audio signal and transmit the digital audio signal to the master 100 through the communication module; the master 100 includes a plurality of master digital-to-analog conversion modules 120 corresponding to the slave analog-to-digital conversion modules 220, and is configured to restore the digital audio signals converted by the slave analog-to-digital conversion modules 220 to analog audio signals again, and then play the analog audio signals to a user of the master 100 through an audio player of the master 100. The master analog-to-digital conversion module 130 in the master 100 can convert an analog audio signal sent by a user of the master 100 into a digital audio signal, process the digital audio signal, and transmit the processed digital audio signal to the designated slave 200 through the communication module; each slave computer 200 includes a slave computer digital-to-analog conversion module 240 corresponding to the master computer analog-to-digital conversion module 130, and is configured to restore the digital audio signal converted by the master computer analog-to-digital conversion module 130 to an analog audio signal again, and then play the analog audio signal to a user of the slave computer 200 through a slave computer player 250.
It can be understood that the utility model discloses a two-way transmission system of audio frequency not only can realize host computer 100 and from the real-time two-way audio transmission between the machine 200, can also guarantee the audio transmission between a host computer 100 and a plurality of machine 200, has richened audio transmission system's application scene.
As shown in fig. 2, in an alternative embodiment of the present invention, a Digital Signal processor 260 (DSP) is further connected between the slave analog-to-Digital conversion module 220 and the slave communication module 230, and the Digital Signal processor 260 is configured to perform Digital processing on the Digital audio Signal output from the slave analog-to-Digital conversion module 220.
It will be appreciated that the digital audio signal processed by the digital signal processor 260 will have the effects of voice, reverberation, etc.
As shown in fig. 2, in an alternative embodiment of the present invention, the host communication module 110 includes a host antenna 111 and a host rf module 112 connected to each other, and the host rf module 112 is electrically connected to the input terminal of the host digital-to-analog conversion module 120 and the output terminal of the host analog-to-digital conversion module 130, respectively; each slave communication module 230 comprises a slave antenna 231 and a slave radio frequency module 232 which are connected with each other, and the slave radio frequency module 232 is respectively and electrically connected with the input end of the slave digital-to-analog conversion module 240 and the output end of the digital signal processor 260; the master antenna 111 and the slave antenna 231 communicate by radio.
It is understood that the master RF module 112 and the slave RF module 232 may be 5.8G Radio Frequency (RF) modules.
As shown in fig. 2, in an alternative embodiment of the present invention, the host 100 further includes a host first amplifier 150 and a host second amplifier 160; the output end of each host digital-to-analog conversion module 120 is electrically connected with the input end of the host first amplifier 150, and the output end of the host first amplifier 150 is electrically connected with the audio jack 140; the input of the host second amplifier 160 is electrically connected to the audio jack 140, and the output of the host second amplifier 160 is electrically connected to the input of the host analog-to-digital conversion module 130.
It is understood that the host first amplifier 150 is used for amplifying the analog audio signal converted by each host digital-to-analog conversion module 120; the host second amplifier 160 is used for amplifying the digital audio signal converted by the host analog-to-digital conversion module 130.
As shown in fig. 2, in an alternative embodiment of the present invention, each slave 200 further comprises a respective slave first amplifier 270 and slave second amplifier 280; the input end of a first slave amplifier 270 in each slave 200 is electrically connected with the slave audio collector 210, and the output end of the first slave amplifier 270 is electrically connected with the slave analog-to-digital conversion module 220; the input end of the slave second amplifier 280 in each slave 200 is electrically connected with the slave digital-to-analog conversion module 240, and the output end of the slave second amplifier 280 is electrically connected with the slave player 250.
It can be understood that the slave first amplifier 270 is configured to amplify the analog audio signal collected by the slave audio collector 210; the slave second amplifier 280 is configured to amplify the analog audio signal converted by the slave digital-to-analog conversion module 240.
In an alternative embodiment of the present invention, the slave audio collector 210 includes at least one of a microphone, and a sound head.
In an alternative embodiment of the present invention, the slave player 250 includes at least one of a speaker and an earphone.
In an alternative embodiment of the present invention, the audio jack 140 is used to connect the host 100 audio collector or the host 100 audio player.
It is understood that the host 100 audio collector may be at least one of a microphone, and a sound head. The host 100 audio player may be at least one of a speaker and a headphone.
Has the advantages that:
the utility model discloses a two-way transmission system of audio frequency not only can realize host computer 100 and follow the real-time two-way audio transmission between the machine 200, can also guarantee a host computer 100 and a plurality of audio transmission from between the machine 200, has richened audio transmission system's application scene.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An audio bi-directional transmission system, comprising:
a master and a plurality of slaves;
the host comprises a host communication module, a plurality of host digital-to-analog conversion modules, a host analog-to-digital conversion module and an audio socket; the input ends of the host digital-to-analog conversion modules are electrically connected with the host communication module, and the output ends of the host digital-to-analog conversion modules are electrically connected with the audio jack; the input end of the host analog-to-digital conversion module is electrically connected with the audio jack, and the output end of the host analog-to-digital conversion module is electrically connected with the host communication module;
each slave machine comprises a respective slave machine audio collector, a slave machine analog-to-digital conversion module, a slave machine communication module, a slave machine digital-to-analog conversion module and a slave machine player; the input end of the slave analog-to-digital conversion module is electrically connected with the slave audio collector, and the output end of the slave analog-to-digital conversion module is electrically connected with the slave communication module; the input end of the slave digital-to-analog conversion module is electrically connected with the slave communication module, and the output end of the slave digital-to-analog conversion module is electrically connected with the slave player;
the master digital-to-analog conversion module is matched with the slave analog-to-digital conversion module, and the master digital-to-analog conversion module is used for converting the digital signals converted by the slave analog-to-digital conversion module into corresponding analog signals again; each slave digital-to-analog conversion module is matched with the master analog-to-digital conversion module, and the slave digital-to-analog conversion module is used for converting the digital signals converted by the master analog-to-digital conversion module into corresponding analog signals again.
2. Audio bi-directional transmission system according to claim 1,
and a digital signal processor is communicated between the slave analog-to-digital conversion module and the slave communication module and is used for digitally processing the digital audio signal output by the slave analog-to-digital conversion module.
3. Audio bi-directional transmission system according to claim 2,
the host communication module comprises a host antenna and a host radio frequency module which are connected with each other, and the host radio frequency module is respectively and electrically connected with the input end of the host digital-to-analog conversion module and the output end of the host analog-to-digital conversion module;
each slave communication module comprises a slave antenna and a slave radio frequency module which are connected with each other, and the slave radio frequency module is respectively and electrically connected with the input end of the slave digital-to-analog conversion module and the output end of the digital signal processor;
the master antenna and the slave antenna communicate by radio.
4. Audio bi-directional transmission system according to claim 1,
the host further comprises a host first amplifier and a host second amplifier;
the output end of each host digital-to-analog conversion module is electrically connected with the input end of the host first amplifier, and the output end of the host first amplifier is electrically connected with the audio jack;
the input end of the host second amplifier is electrically connected with the audio jack, and the output end of the host second amplifier is electrically connected with the input end of the host analog-to-digital conversion module.
5. Audio bi-directional transmission system according to claim 4,
each slave further comprises a respective slave first amplifier and a slave second amplifier;
the input end of the first amplifier of the slave in each slave machine is electrically connected with the slave audio collector, and the output end of the first amplifier of the slave machine is electrically connected with the analog-to-digital conversion module of the slave machine;
the input end of the slave machine second amplifier in each slave machine is electrically connected with the slave machine digital-to-analog conversion module, and the output end of the slave machine second amplifier is electrically connected with the slave machine player.
6. Audio bi-directional transmission system according to one of claims 1 to 5,
the slave audio collector comprises at least one of a microphone, a microphone and a sound head.
7. Audio bi-directional transmission system according to one of claims 1 to 5,
the slave player includes at least one of a speaker and an earphone.
8. Audio bi-directional transmission system according to one of claims 1 to 5,
the audio socket is used for connecting a host audio collector or a host audio player.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120755184.8U CN214591821U (en) | 2021-04-13 | 2021-04-13 | Audio bidirectional transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120755184.8U CN214591821U (en) | 2021-04-13 | 2021-04-13 | Audio bidirectional transmission system |
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| Publication Number | Publication Date |
|---|---|
| CN214591821U true CN214591821U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120755184.8U Active CN214591821U (en) | 2021-04-13 | 2021-04-13 | Audio bidirectional transmission system |
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| CN (1) | CN214591821U (en) |
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- 2021-04-13 CN CN202120755184.8U patent/CN214591821U/en active Active
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