CN220440787U - Audio signal conversion processing device and collecting, editing, recording and broadcasting integrated machine - Google Patents
Audio signal conversion processing device and collecting, editing, recording and broadcasting integrated machine Download PDFInfo
- Publication number
- CN220440787U CN220440787U CN202322046616.XU CN202322046616U CN220440787U CN 220440787 U CN220440787 U CN 220440787U CN 202322046616 U CN202322046616 U CN 202322046616U CN 220440787 U CN220440787 U CN 220440787U
- Authority
- CN
- China
- Prior art keywords
- audio
- output
- input
- coupled
- plug
- 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.)
- Active
Links
- 230000005236 sound signal Effects 0.000 title claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 29
- 238000012545 processing Methods 0.000 title claims abstract description 27
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model provides a conversion processing device of audio signals, which comprises an audio input converter coupled with an audio input interface, a universal sound card coupled with the audio input converter, an audio output converter coupled with the universal sound card, and an audio output interface coupled with the audio output converter; the audio input converter is used for converting a balanced or unbalanced audio signal input from the audio input interface into an unbalanced audio signal and outputting the unbalanced audio signal to the universal sound card, and the audio output converter is used for converting the unbalanced audio signal output by the universal sound card into a balanced audio signal and outputting the balanced audio signal to the audio output interface. The audio frequency signal conversion processing device can realize the balance/unbalance and unbalance/balance conversion of the input balanced/unbalanced audio signals and finally output balanced signals, thereby overcoming the problem that frequent audio signals are easy to be interfered by the outside when live broadcasting.
Description
Technical Field
The utility model relates to the technical field of audio processing equipment, in particular to an audio signal conversion processing device and a recording and broadcasting integrated machine.
Background
With the development and rising of the live media industry, video consumption is more and more focused, and becomes an extremely important propagation medium and channel.
Live broadcasting is a propagation means and gradually becomes an important information channel source for people. With the advent of more and more live, the importance of audio quality to live video traffic is self-evident. However, during video shooting, recording, and transmission, the imbalance of conventional audio signals causes an inherent disadvantage in that the audio is susceptible to external disturbances. The disadvantage brings unavoidable interference and noise to the audio in live broadcast, which causes low quality of live broadcast video and finally causes problems such as video flow reduction.
Disclosure of Invention
The utility model aims to provide a conversion processing device for audio signals, so as to solve the problem that frequent audio signals are easy to be interfered by the outside when live broadcast is performed, and also provides a recording and playing all-in-one machine provided with the conversion processing device for the audio signals.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a first aspect of the present utility model provides an audio signal conversion processing apparatus, including an audio input converter coupled to an audio input interface, a universal sound card coupled to the audio input converter, an audio output converter coupled to the universal sound card, and an audio output interface coupled to the audio output converter; the audio input converter is used for converting a balanced or unbalanced audio signal input from the audio input interface into an unbalanced audio signal and outputting the unbalanced audio signal to the universal sound card, and the audio output converter is used for converting the unbalanced audio signal output by the universal sound card into a balanced audio signal and outputting the balanced audio signal to the audio output interface.
Further, the audio input converter and the audio output converter are all audio transformers with a turn ratio of 1:1.
Further, the audio input interface is a universal audio jack adapted to a large two-core audio plug or a large three-core audio plug; when the audio input interface is inserted into the large two-core audio plug, the positive electrode of the plug is coupled with the first end of the input side of the audio input transformer, and the negative electrode of the plug and the ground wire are coupled with the second end of the input side of the audio input transformer; when the audio input interface is plugged into the large three-core audio plug, the positive electrode of the plug is coupled with the first end of the input side of the audio input transformer, the negative electrode of the plug is coupled with the second end of the input side of the audio input transformer, and the ground wire is coupled with the middle end of the input side of the audio input transformer.
Further, the first end of the output side of the audio input transformer outputs an unbalanced audio signal, and the second end outputs a ground wire signal; the first end of the input side of the audio output transformer receives the unbalanced audio signal output by the universal sound card, and the second end receives the ground wire signal output by the universal sound card.
Further, the audio output interface is a universal audio jack adapted to a large three-core audio plug; when the audio output interface is inserted into the large three-core audio plug, the positive electrode of the plug is coupled with the first end of the output side of the audio output transformer, the negative electrode of the plug is coupled with the second end of the output side of the audio output transformer, and the ground wire is coupled with the middle end of the output side of the audio output transformer.
The second aspect of the present utility model also provides a recording and playing all-in-one machine configured with the audio signal conversion processing device according to the first aspect.
Further, the collecting, editing, recording and broadcasting all-in-one machine comprises a host and a liquid crystal display, wherein the host comprises a shell, a keyboard arranged on the shell and a main board arranged in the shell of the host, a processor and storage equipment are arranged on the main board, the all-in-one machine further comprises a video output card, an HDMI video acquisition card, an SDI video acquisition card and a full-interface acquisition card which are coupled with the main board and provided with corresponding interfaces on the shell of the host, and the audio signal conversion processing device is integrally arranged on the host in the form of an audio output card.
The utility model has the beneficial effects that:
the audio frequency signal conversion processing device of the utility model is provided with the audio frequency input converter in front of the audio frequency input end of the universal sound card, and the audio frequency output converter is arranged behind the audio frequency output end of the universal sound card, thereby realizing the balance/unbalance and unbalance/balance conversion of the input balanced/unbalanced audio frequency signals and finally outputting the balanced signals, thereby overcoming the problem that the frequently-used audio frequency signals are easy to be interfered by the outside when in live broadcast. Meanwhile, the audio frequency signal conversion processing device is realized by adopting the audio frequency transformer with the turn ratio of 1:1, has a simple and reliable structure, and has obvious cost advantage. The collecting, editing and recording and broadcasting integrated machine provided with the audio frequency signal conversion processing device can realize high-quality collection and transmission of live broadcast audio signals, can effectively improve the quality of live broadcast video and is beneficial to increasing video flow.
Drawings
Fig. 1 is a schematic diagram of an audio signal conversion processing device according to an embodiment of the utility model.
Fig. 2 is a schematic structural diagram of a large two-core audio plug and a large three-core audio plug.
Fig. 3 is a schematic diagram illustrating connection when an unbalanced signal is received by the audio frequency signal conversion processing device according to an embodiment of the present utility model.
Fig. 4 is a schematic connection diagram of an audio signal conversion processing device according to an embodiment of the utility model when receiving a balanced signal.
Fig. 5 is a schematic structural diagram of the recording and playing integrated machine according to the present utility model.
Fig. 6 is a schematic diagram illustrating connection of internal modules of the recording and playing integrated machine according to the present utility model.
Detailed Description
For a further understanding of the present utility model, preferred embodiments of the utility model are described below in conjunction with the examples, but it should be understood that these descriptions are merely intended to illustrate further features and advantages of the utility model, and are not limiting of the claims of the utility model.
Referring to fig. 1, a first embodiment of the present utility model provides an audio signal conversion processing apparatus, which includes an audio input converter 2 coupled to an audio input interface 1, a universal sound card 3 coupled to the audio input converter 2, an audio output converter 4 coupled to the sound card 3, and an audio output interface 5 coupled to the audio output converter 4. The audio input converter 2 is configured to convert a balanced or unbalanced audio signal input from the audio input interface 1 into an unbalanced audio signal and output the unbalanced audio signal to the universal sound card 3, and the audio output converter 4 is configured to convert an unbalanced audio signal output from the universal sound card 3 into a balanced audio signal and output the balanced audio signal to the audio output interface 5.
By adopting the design, the audio input converter is arranged in front of the audio input end of the universal sound card, and the audio output converter is arranged behind the audio output end of the universal sound card, so that the balance/unbalance and unbalance/balance conversion of the input balanced/unbalanced audio signals are realized, and finally the balanced signals are output, thereby solving the problem that the frequent audio signals in live broadcasting are easy to be interfered by the outside.
As a preferred embodiment, in this example, the audio input converter and the audio output converter are each an audio transformer with a turn ratio of 1:1.
As a preferred embodiment, in this example, the audio input interface 1 is a universal audio jack adapted to a large two-core audio plug or a large three-core audio plug. Referring to fig. 2, the large two-core audio plug 6 is for transmitting unbalanced signals, and its head terminal includes a positive electrode portion 61, a negative electrode portion 62, and a ground portion 63; the large three-core audio plug 7 is for transmitting a balanced signal, and its head terminal includes a positive electrode portion 71, a negative electrode portion 72, and a ground portion 73. The audio input interface 1 serves as a universal audio jack, the internal structure of which is adapted to the large two-core audio plug 6 and the large three-core audio plug 7, and when the large three-core audio plug is inserted, the jack internal terminals are in one-to-one correspondence with the positive electrode portion 71, the negative electrode portion 72 and the ground portion 73 of the plug head terminal, and when the large two-core audio plug is inserted, the positive electrode portion of the jack internal terminals is butted with the positive electrode portion 61 of the plug head terminal, and the negative electrode portion of the jack internal terminals is butted with the negative electrode portion 62 and the ground portion of the plug head terminal at the same time.
Thus, referring to fig. 3, when the audio input interface, i.e., the input-side universal audio jack 10 is plugged into a large two-core audio plug, the positive terminal of the plug is coupled to the input-side first terminal of the audio input transformer 20, an unbalanced signal is input, and the negative terminal of the plug and the ground line are simultaneously coupled to the input-side second terminal of the audio input transformer 20, and a ground signal is input. Referring to fig. 4, when the audio input interface, i.e., the input-end universal audio jack 10 is plugged into a large three-core audio plug, the positive terminal of the plug is coupled to the first end of the input side of the audio input transformer 20, a first balanced signal is input, the negative terminal of the plug is coupled to the second end of the input side of the audio input transformer 20, a second balanced signal is input, and the ground wire is coupled to the middle end of the input side of the audio input transformer 20.
Further, the first end of the output side of the audio input transformer 20 outputs unbalanced audio signals, and the second end outputs ground signals, which are respectively input to the universal sound card 3. After being processed by the universal sound card 3, a first end of the input side of the audio output transformer 40 receives an unbalanced audio signal output by the universal sound card 3, and a second end receives a ground wire signal output by the universal sound card 3.
On the output side, the audio output interface is an output universal audio jack 50 that fits a large three-core audio plug. When a large three-core audio plug is inserted, the positive pole of the plug is coupled to the first end of the output side of the audio output transformer 40, the negative pole of the plug is coupled to the second end of the output side of the audio output transformer 40, and the ground wire is coupled to the middle end of the output side of the audio output transformer 40, so that the input balanced/unbalanced signal is converted into a balanced signal for output.
Referring to fig. 5, a second embodiment of the present utility model further provides a recording and playing integrated machine, which includes a host and a liquid crystal display 82, where the host includes a housing 81, a keyboard 83 disposed on the housing 81, and a motherboard disposed in the housing of the host, where the housing 81 is provided with a plurality of interfaces 84, and the motherboard is configured with a processor and a storage device. Referring to fig. 6, the host is further provided with a video output card, an HDMI video acquisition card, an SDI video acquisition card and a full interface acquisition card, which are coupled to the motherboard and provided with corresponding interfaces on the host housing. In a preferred embodiment, the audio signal conversion processing device provided by the utility model is integrally arranged on the host in the form of an audio output card.
The acquisition, editing, recording and broadcasting all-in-one machine provided by the embodiment is provided with the audio frequency signal conversion processing device, so that high-quality acquisition and transmission of live broadcast audio signals can be realized, the quality of live broadcast video can be effectively improved, and the video flow can be increased.
The above description of the embodiments is only for aiding in the understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (7)
1. The audio signal conversion processing device is characterized by comprising an audio input converter coupled with an audio input interface, a universal sound card coupled with the audio input converter, an audio output converter coupled with the universal sound card, and an audio output interface coupled with the audio output converter; the audio input converter is used for converting a balanced or unbalanced audio signal input from the audio input interface into an unbalanced audio signal and outputting the unbalanced audio signal to the universal sound card, and the audio output converter is used for converting the unbalanced audio signal output by the universal sound card into a balanced audio signal and outputting the balanced audio signal to the audio output interface.
2. The audio signal conversion processing device according to claim 1, wherein the audio input converter and the audio output converter are each an audio transformer having a turn ratio of 1:1.
3. The audio signal conversion processing device according to claim 2, wherein the audio input interface is a universal audio jack adapted to a large two-core audio plug or a large three-core audio plug; when the audio input interface is inserted into the large two-core audio plug, the positive electrode of the plug is coupled with the first end of the input side of the audio input transformer, and the negative electrode of the plug and the ground wire are coupled with the second end of the input side of the audio input transformer; when the audio input interface is plugged into the large three-core audio plug, the positive electrode of the plug is coupled with the first end of the input side of the audio input transformer, the negative electrode of the plug is coupled with the second end of the input side of the audio input transformer, and the ground wire is coupled with the middle end of the input side of the audio input transformer.
4. The audio signal conversion processing apparatus according to claim 3, wherein the first terminal of the output side of the audio input transformer outputs an unbalanced audio signal, and the second terminal outputs a ground signal; the first end of the input side of the audio output transformer receives the unbalanced audio signal output by the universal sound card, and the second end receives the ground wire signal output by the universal sound card.
5. The audio signal conversion processing device according to claim 4, wherein the audio output interface is a universal audio jack adapted to a large three-core audio plug; when the audio output interface is inserted into the large three-core audio plug, the positive electrode of the plug is coupled with the first end of the output side of the audio output transformer, the negative electrode of the plug is coupled with the second end of the output side of the audio output transformer, and the ground wire is coupled with the middle end of the output side of the audio output transformer.
6. A pick-up, editing and recording integrated machine, characterized in that it is provided with an audio signal conversion processing device according to any one of claims 1-5.
7. The recording and playing all-in-one machine according to claim 6, wherein the recording and playing all-in-one machine comprises a host and a liquid crystal display, the host comprises a shell, a keyboard arranged on the shell and a main board arranged in the shell of the host, a processor and a storage device are arranged on the main board, the recording and playing all-in-one machine further comprises a video output card, an HDMI video acquisition card, an SDI video acquisition card and a full interface acquisition card which are coupled with the main board and are provided with corresponding interfaces on the shell of the host, and the audio signal conversion processing device is integrally arranged on the host in the form of an audio output card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322046616.XU CN220440787U (en) | 2023-08-01 | 2023-08-01 | Audio signal conversion processing device and collecting, editing, recording and broadcasting integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322046616.XU CN220440787U (en) | 2023-08-01 | 2023-08-01 | Audio signal conversion processing device and collecting, editing, recording and broadcasting integrated machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220440787U true CN220440787U (en) | 2024-02-02 |
Family
ID=89688301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322046616.XU Active CN220440787U (en) | 2023-08-01 | 2023-08-01 | Audio signal conversion processing device and collecting, editing, recording and broadcasting integrated machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220440787U (en) |
-
2023
- 2023-08-01 CN CN202322046616.XU patent/CN220440787U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201315646Y (en) | Digital audio interface circuit for TV | |
| CN209861146U (en) | Wireless audio conversion device and wireless sound system | |
| CN220440787U (en) | Audio signal conversion processing device and collecting, editing, recording and broadcasting integrated machine | |
| CN201142721Y (en) | Isolation device for noise signal of cable television and digital television receiver | |
| CN201518504U (en) | Digital audio frequency test device of digital television set-top box | |
| CN216624756U (en) | HDMI high-frequency high-definition port | |
| CN201479334U (en) | Digital sound box using electric-power line for transmitting information | |
| CN210183436U (en) | HDMI audio separator | |
| CN201104894Y (en) | Supersonic diagnosis apparatus | |
| CN213342437U (en) | General DVB module | |
| CN204069165U (en) | High-definition digital signal local network transport and expanding unit | |
| CN214281585U (en) | Control circuit structure of strip-shaped sound box | |
| CN216981995U (en) | Circuit for reducing SDI output signal jitter | |
| CN203014945U (en) | Mobile terminal | |
| CN216905311U (en) | Stereo audio converter | |
| CN217160000U (en) | Cascaded low-noise ceiling sound box | |
| CN204539090U (en) | Audio frequency apparatus | |
| CN220493150U (en) | Wireless audio adapter and related device | |
| CN203596878U (en) | High-definition set top box having three-network integration interface | |
| CN205160772U (en) | Sound card | |
| CN204859357U (en) | HDMI audio frequency separator | |
| CN211406262U (en) | Multi-processing-layer sound control circuit | |
| CN218850973U (en) | Loudspeaker frequency response equalization compensation system and electronic equipment | |
| CN216134600U (en) | PCBA testing arrangement of making an uproar falls | |
| CN201813349U (en) | Family cinema audio power amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |