CN210839557U - Wireless audio transmission system providing real-time recording - Google Patents
Wireless audio transmission system providing real-time recording Download PDFInfo
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- CN210839557U CN210839557U CN201922194541.3U CN201922194541U CN210839557U CN 210839557 U CN210839557 U CN 210839557U CN 201922194541 U CN201922194541 U CN 201922194541U CN 210839557 U CN210839557 U CN 210839557U
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- audio
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- wireless
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3888—Arrangements for carrying or protecting transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/07—Applications of wireless loudspeakers or wireless microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- Circuit For Audible Band Transducer (AREA)
- Transmitters (AREA)
Abstract
The utility model provides a wireless audio transmission system who provides real-time recording. The wireless audio transmission system for providing real-time audio recording comprises: the transmitter is provided with a microphone interface, a recording circuit and a storage module which are sequentially and electrically connected, the microphone interface is used for receiving recording audio of a microphone, the recording circuit is used for processing the recording audio received by the microphone interface, and the storage module is used for storing the recording audio processed by the recording circuit; the receiver is provided with an audio output interface which is used for outputting audio; and the transmitter is in wireless communication connection with the receiver, and the transmitter can store audio information in real time through the storage module on one hand and can output the audio information in real time through the receiver on the other hand.
Description
Technical Field
The utility model belongs to the technical field of wireless audio transmission, in particular to wireless audio transmission system who provides real-time recording.
Background
If a video is captured by a camera, it is often necessary to dub the captured video in real time. In order to ensure the sound quality effect of real-time dubbing, it is necessary to perform shooting while speaking a speech line at a position close to the microphone of the imaging device, so as to avoid the situation that the video dubbing is not clearly heard or is intermittent. However, the sound quality effect of real-time dubbing cannot be guaranteed when the distance from the microphone is far, so that the requirement of people for obtaining good shooting experience is difficult to meet.
In addition, in other situations where real-time audio transmission is required, if the speaker needs to move around, the wired transmission method is obviously difficult to satisfy the user's requirements.
SUMMERY OF THE UTILITY MODEL
The main objective of the present invention is to provide a wireless audio transmission system for real-time recording.
A wireless audio transmission system providing real-time recording, comprising: the transmitter is provided with a microphone interface, a recording circuit and a storage module which are sequentially and electrically connected, the microphone interface is used for receiving the recording audio of the microphone, the recording circuit is used for processing the recording audio received by the microphone interface, and the storage module is used for storing the recording audio processed by the recording circuit; the receiver is provided with an audio output interface which is used for outputting audio; and the transmitter is in wireless communication connection with the receiver, and the transmitter can store audio information in real time through the storage module on one hand and can transmit the audio information in real time through the receiver on the other hand.
Preferably, the storage module is a memory card and a USB module; and the transmitter is provided with a memory card slot and a USB interface which are electrically connected with the recording circuit.
Preferably, the transmitter further comprises a first MCU, a first LCD screen and a radio frequency modulation circuit, wherein the first MCU is electrically connected to the recording circuit, the first LCD screen and the radio frequency modulation circuit respectively; the recording circuit sends the processed recording audio to the first MCU, and the first MCU transmits the received recording audio through the antenna after the radio frequency modulation circuit is modulated.
Preferably, the receiver further comprises a second MCU, a second LCD screen, a radio frequency demodulation circuit and a switch chip, wherein the second MCU is electrically connected with the switch chip and the second LCD screen respectively; the input end of the switch chip is electrically connected with the radio frequency demodulation circuit, and the output end of the switch chip is electrically connected with the audio output interface; after the antenna of the receiver receives the wireless audio signal transmitted by the antenna of the transmitter, the radio frequency demodulation circuit demodulates the received wireless audio signal to form a demodulated audio, and the demodulated audio is sent to the switch chip and finally transmitted out through the audio output interface.
Preferably, the transmitter and the receiver realize wireless channel matching in an infrared pairing mode.
Preferably, the transmitter is further provided with an auxiliary audio input interface, and the auxiliary audio input interface is used for receiving the output audio of the portable electronic product.
Preferably, the receiver is further provided with an earphone interface.
The utility model has the advantages that:
in the wireless audio transmission system for providing real-time recording, the transmitter is in wireless communication connection with the receiver, on one hand, the transmitter can store audio information in real time through the storage module, on the other hand, the transmitter can send the audio information out in real time through the receiver, and the wireless communication connection enables the transmitter and the receiver to carry out audio transmission at any time and in a long distance;
moreover, the transmitter can synchronously store and wirelessly transmit the recording audio, so that the recording audio can be backed up; even if the situation of audio loss occurs in the wireless transmission process, the video can be subjected to post-remediation through the backup recorded audio.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural diagram of a transmitter in a wireless audio transmission system for providing real-time recording according to an embodiment of the present invention;
FIG. 2 is a schematic view of an alternate angle configuration of the transmitter of FIG. 1;
fig. 3 is a schematic structural diagram of a receiver in a wireless audio transmission system for providing real-time recording according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of the transmitter of fig. 1;
fig. 5 is a schematic diagram of the circuit configuration of the receiver shown in fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-5, a wireless audio transmission system for providing real-time sound recording includes: a transmitter 10 for mounting a microphone, and a receiver 20. Wherein the transmitter 10 and the receiver 20 are in wireless communication connection. It should be understood that the wireless communication connection between the transmitter 10 and the receiver 20 includes, but is not limited to: radio frequency, WIFI, zigbee, bluetooth and other wireless communication modes.
Specifically, the transmitter 10 includes a microphone interface 11, a recording circuit 12, a storage module 13, a first MCU14, a first LCD screen 15, a radio frequency modulation circuit 16, an auxiliary audio input interface 17, and an infrared receiving circuit 18.
In this embodiment, the microphone interface 11 is configured to receive a recording audio of a microphone, the recording circuit 12 is configured to process the recording audio received by the microphone interface 11, and the storage module 13 is configured to store the recording audio processed by the recording circuit 12. The storage module 13 is a memory card and a USB module; and the transmitter 10 is provided with a memory card slot 101 and a USB interface 102 electrically connected with the recording circuit 12.
The first MCU14 is electrically connected to the recording circuit 12, the first LCD screen 15 and the rf modulation circuit 16, respectively. The recording circuit 12 sends the processed recording audio to the first MCU14, and the first MCU14 modulates the received recording audio by the rf modulation circuit 16 and transmits the modulated recording audio through an antenna.
The auxiliary audio input interface 17 is connected to the first MCU14, and is used for receiving the output audio of the portable electronic product and serving as the auxiliary audio. The first MCU14 performs audio mixing processing on the auxiliary audio and the recording audio, and finally transmits the auxiliary audio and the recording audio through an antenna after performing modulation processing through the radio frequency modulation circuit 16. In this embodiment, the auxiliary audio input interface 17 is connected to a mobile phone or MP3 to receive the output audio output by the portable electronic product. Alternatively, the secondary audio may be suitable secondary audio such as background music.
The first LCD screen 15 receives a display instruction from the first MCU14, and is used to display the operating status of the transmitter 10, such as a recording status and an audio emission status.
Specifically, the receiver 20 includes an audio output interface 21, an earphone interface 22, a second MCU23, a second LCD screen 24, a radio frequency demodulation circuit 25, a switch chip 26, and an infrared transmission circuit 27.
In this embodiment, the second MCU23 is electrically connected to the switch chip 26 and the second LCD screen 24, respectively. The input end of the switch chip 26 is electrically connected to the radio frequency demodulation circuit 25, and the output end of the switch chip 26 is electrically connected to the audio output interface 21 and the earphone interface 22, respectively.
After the antenna of the receiver 20 receives the wireless audio signal transmitted by the transmitter 10, the radio frequency demodulation circuit 25 demodulates the received wireless audio signal to form a demodulated audio, and sends the demodulated audio to the switch chip 26, and finally the demodulated audio is transmitted through the audio output interface 21 and the earphone interface 22.
The second LCD screen 24 receives a display instruction from the second MCU23, and is used to display the operating status of the receiver 20, such as receiving status and audio transmission status.
In this embodiment, the receiver is provided with two receiving antennas, so that the audio signals of two wireless channels can be received simultaneously. Correspondingly, the receiver 20 is provided with two rf demodulation circuits 25. Not limited to this embodiment, the receiver 20 may be provided with one or more receiving antennas, and then the receiver 20 may be correspondingly provided with one or more rf demodulation circuits 25, so as to receive the audio information sent by one or more rf channels, which is not limited by the present invention.
The switch chip 26 is used for switching between stereo and mono, and the switch chip 26 is an integrated chip with model number HEF 4053.
In addition, the transmitter 10 and the receiver 20 implement wireless channel matching by means of infrared pairing. Specifically, the infrared transmitting circuit 27 of the receiver 20 transmits the radio frequency channel signal of the transmitter 10 to the infrared receiving circuit 18 of the receiver 20, and the infrared receiving circuit 18 forwards the received radio frequency channel signal to the first MCU14, so that the first MCU14 controls the radio frequency modulating circuit 16 of the transmitter 10 to modulate the radio frequency signal to match with the receiver 20, thereby implementing the wireless radio frequency communication connection.
The working principle of the wireless audio transmission system for providing real-time recording is as follows:
the transmitter 10 and the receiver 20 realize wireless channel matching through an infrared pairing mode, so that the transmitter and the receiver can perform wireless audio transmission through a radio frequency channel;
after the microphone of the transmitter 10 receives the recorded audio, on one hand, the audio information can be stored in real time through the storage module 13, and on the other hand, the audio information can be sent out in real time through the receiver 20;
moreover, if background music needs to be added to the recorded audio, the auxiliary audio of the background music is input through the auxiliary audio input interface 17, the first MCU14 performs audio mixing processing on the auxiliary audio and the recorded audio, and finally the recorded audio after audio mixing processing is modulated by the radio frequency modulation circuit 16 and then transmitted through an antenna;
after receiving the wireless audio signal, the antenna of the receiver 20 demodulates the received wireless audio signal by the radio frequency demodulation circuit 25 to form a demodulated audio, and sends the demodulated audio to the switch chip 26, and finally transmits the demodulated audio through the audio output interface 21 and the earphone interface 22.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (7)
1. A wireless audio transmission system for providing real-time audio recording, comprising: a transmitter for mounting a microphone, and a receiver,
the transmitter is provided with a microphone interface, a recording circuit and a storage module which are sequentially and electrically connected, wherein the microphone interface is used for receiving the recording audio of the microphone, the recording circuit is used for processing the recording audio received by the microphone interface, and the storage module is used for storing the recording audio processed by the recording circuit;
the receiver is provided with an audio output interface which is used for outputting audio;
and the transmitter is in wireless communication connection with the receiver, and the transmitter can store audio information in real time through the storage module on one hand and can output the audio information in real time through the receiver on the other hand.
2. The wireless audio transmission system for providing real-time audio recording according to claim 1, wherein the storage module is a memory card and a USB module;
and the transmitter is provided with a memory card slot and a USB interface which are electrically connected with the recording circuit.
3. The wireless audio transmission system for providing real-time recording according to claim 1, wherein the transmitter further comprises a first MCU, a first LCD screen and a radio frequency modulation circuit, the first MCU being electrically connected to the recording circuit, the first LCD screen and the radio frequency modulation circuit, respectively;
the recording circuit sends the processed recording audio to the first MCU, and the first MCU transmits the received recording audio through the antenna after the radio frequency modulation circuit is modulated.
4. The wireless audio transmission system for providing real-time recording according to claim 1, wherein the receiver further comprises a second MCU, a second LCD screen, a radio frequency demodulation circuit and a switch chip, the second MCU being electrically connected to the switch chip and the second LCD screen, respectively;
the input end of the switch chip is electrically connected with the radio frequency demodulation circuit, and the output end of the switch chip is electrically connected with the audio output interface;
after the antenna of the receiver receives the wireless audio signal transmitted by the antenna of the transmitter, the radio frequency demodulation circuit demodulates the received wireless audio signal to form a demodulated audio, and the demodulated audio is sent to the switch chip and finally output through the audio output interface.
5. The wireless audio transmission system for providing real-time audio recording according to claim 1, wherein said transmitter and said receiver are configured to perform wireless channel matching by infrared pairing.
6. The wireless audio transmission system for providing real-time recording according to claim 3, wherein the transmitter further comprises an auxiliary audio input interface electrically connected to the first MCU, the auxiliary audio input interface being configured to receive output audio of a portable electronic product.
7. The wireless audio transmission system for providing real-time audio recording according to claim 1, wherein said receiver is further provided with an earphone interface.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194541.3U CN210839557U (en) | 2019-12-10 | 2019-12-10 | Wireless audio transmission system providing real-time recording |
| DE202019107272.5U DE202019107272U1 (en) | 2019-12-10 | 2019-12-30 | Wireless audio transmission system for delivering real-time audio recording |
| JP2020000081U JP3225949U (en) | 2019-12-10 | 2020-01-10 | Wireless voice transmission system with real-time recording function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194541.3U CN210839557U (en) | 2019-12-10 | 2019-12-10 | Wireless audio transmission system providing real-time recording |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210839557U true CN210839557U (en) | 2020-06-23 |
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ID=70166242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922194541.3U Active CN210839557U (en) | 2019-12-10 | 2019-12-10 | Wireless audio transmission system providing real-time recording |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3225949U (en) |
| CN (1) | CN210839557U (en) |
| DE (1) | DE202019107272U1 (en) |
-
2019
- 2019-12-10 CN CN201922194541.3U patent/CN210839557U/en active Active
- 2019-12-30 DE DE202019107272.5U patent/DE202019107272U1/en active Active
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2020
- 2020-01-10 JP JP2020000081U patent/JP3225949U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP3225949U (en) | 2020-04-16 |
| DE202019107272U1 (en) | 2020-06-16 |
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