CN212276800U - Wireless karaoke OK singing system - Google Patents
Wireless karaoke OK singing system Download PDFInfo
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- CN212276800U CN212276800U CN202020494436.1U CN202020494436U CN212276800U CN 212276800 U CN212276800 U CN 212276800U CN 202020494436 U CN202020494436 U CN 202020494436U CN 212276800 U CN212276800 U CN 212276800U
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Abstract
The utility model provides a wireless karaoke singing system, include: two microphones; the relay transmitter comprises a wireless transmitting module, and is used for performing stereo coding and transmitting after performing analog-to-digital conversion on signals of all microphones; the wireless receiving module receives the stereo coding signal, decodes and decomposes the stereo coding signal into digital microphone signals of two sound channels, and then carries out digital-to-analog conversion; the sound effect processing module is used for respectively carrying out sound effect processing on the analog microphone signals and the sound source signals of the two sound channels and combining the processed sound effect signals; and the sound production equipment is connected with the sound effect processing unit and plays the received signals. The utility model discloses a microphone audio frequency relay box forms stereo coding signal to two way wired signal analog-to-digital conversion and codes, only needs can realize double karaoke through a pair of wireless transmission and receiving chip, has reduced the quantity of wireless transmission and wireless receiving chip in wireless karaoke singing system to can carry out the audio processing to the microphone signal of different sound channels alone, richen sound effect.
Description
Technical Field
The utility model relates to an audio field especially relates to a wireless karaoke singing system.
Background
Karaoke is an accompaniment system in which a singer can participate in song singing with pre-recorded musical accompaniment, and karaoke enables the voice of the singer to be beautified and embellished through sound processing, and the voice of the singer becomes a muddy integral song when organically combined with the musical accompaniment. The wireless karaoke means that audio signals of a singer are collected by a wireless microphone and transmitted to a karaoke host computer in a wireless transmission mode, and the wireless karaoke host computer is mostly used in KTV or households.
When a common wireless karaoke singing system supports two persons to sing simultaneously, the system comprises two wireless microphones, two wireless receiving chips, a sound effect processing chip and sound production equipment; a sound pick-up in the wireless microphone receives human voice and transmits a wireless audio signal through an internal wireless transmitting chip; each wireless receiving chip receives the wireless audio signal transmitted by the corresponding wireless transmitting chip and converts the wireless audio signal into an audio signal, and each audio signal is sent to the sound effect processing chip; finally, the audio is played through the sound production equipment.
The existing wireless karaoke singing system has two problems: one is that each wireless microphone signal needs a complete set of wireless transceiving system, which is high in cost. On the other hand, if the user originally bought the karaoke system with only one microphone, the user cannot subsequently upgrade to the double karaoke function by newly purchasing a wireless microphone, which causes inconvenience to the user.
Therefore, how to reduce the cost of the wireless karaoke singing system and facilitate the flexible upgrade of the wireless karaoke singing system to the double karaoke system becomes one of the problems to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings in the prior art, an object of the present invention is to provide a wireless karaoke singing system for solving the problems in the prior art that the wireless karaoke singing system is high in cost and the user cannot flexibly upgrade.
In order to achieve the above objects and other related objects, the present invention provides a wireless karaoke singing system, comprising:
two microphones;
the relay transmitter is connected with the microphone and comprises a wireless transmitting module; the wireless sending module performs analog-to-digital conversion on signals collected by each microphone, performs stereo coding, and sends the stereo coding signals;
the wireless receiving module is used for receiving the stereo coded signal sent by the wireless sending module, decoding and decomposing the stereo coded signal into microphone signals of two sound channels, and then carrying out digital-to-analog conversion to restore the microphone signals into analog signals;
the sound effect processing module is connected with the wireless receiving module and receives sound source signals, and sound effect processing and combination are respectively carried out on the analog microphone signals of the two sound channels and the sound source signals;
and the sound production equipment is connected with the sound effect processing unit and plays the received signals.
Optionally, a microphone interface is disposed on the relay transmitter, and the number of the microphone interfaces is not less than the number of the microphones.
Optionally, the relay transmitter further comprises a power switch and a volume adjustment switch.
Optionally, the signal frequency bands transmitted by the wireless transmitting module and the wireless receiving module include FM, AM, V, U, or 2.4G.
Optionally, the wireless sending module includes an analog-to-digital conversion unit, a channel merging and stereo coding unit, and a wireless sending unit; the analog-to-digital conversion unit converts analog audio signals collected by the two microphones into digital audio signals; the sound channel merging and stereo coding unit converts the two paths of digital audio signals into stereo signals and codes the stereo signals to form stereo coded signals; the wireless sending unit is connected with the sound channel combination and stereo coding unit and sends the stereo coding signal.
Optionally, the wireless receiving module includes a wireless receiving unit, a decoding and channel decomposing unit, and a digital-to-analog converting unit; the wireless receiving unit receives the stereo coded signal; the decoding and sound channel decomposing unit is connected with the wireless receiving unit and used for decoding and decomposing the stereo coding signal into two paths of digital microphone signals; the digital-to-analog conversion unit is connected with the decoding and sound channel decomposition unit and restores the two paths of digital microphone signals into two paths of analog microphone signals.
Optionally, the sound effect processing module includes a first sound effect processing unit, a second sound effect processing unit, a third sound effect processing unit and a merging unit; the first sound effect processing unit receives an analog microphone signal of a first sound channel and performs sound effect processing on the analog microphone signal of the first sound channel; the second sound effect processing unit receives an analog microphone signal of a second channel and performs sound effect processing on the analog microphone signal of the second channel; the third sound effect processing unit receives the sound source signal and performs sound effect processing on the sound source signal; the merging unit is connected with the first sound effect processing unit, the second sound effect processing unit and the third sound effect processing unit, and outputs the output signals of the first sound effect processing unit, the second sound effect processing unit and the third sound effect processing unit after merging.
Optionally, the sound emitting device comprises a sound.
More optionally, the wireless karaoke singing system further comprises a power amplifier, wherein the power amplifier is connected between the sound effect processing module and the sound generating equipment, and amplifies the signal output by the sound effect processing module and outputs the amplified signal to the sound generating equipment.
As described above, the utility model discloses a wireless karaoke singing system has following beneficial effect:
1. the utility model discloses a wireless karaoke singing system merges two way microphone signals into stereo signal and carries out the coding, only needs one set of wireless receiving and dispatching system can accomplish the transmission of signal, the wireless receiving and dispatching system's that from this can significantly reduce quantity, and then reduce the cost.
2. The utility model discloses a wireless karaoke singing system received stereo signal decodes and decomposes into the analog microphone signal back of two sound channels, carries out the audio processing respectively, can realize richer sound effect from this.
Drawings
Fig. 1 is a schematic diagram showing a circuit structure of the wireless karaoke singing system of the present invention.
Fig. 2 is a schematic diagram of a circuit structure of the wireless transmitting module of the present invention.
Fig. 3 is a schematic circuit diagram of the wireless receiving module of the present invention.
Fig. 4 is a schematic diagram of a circuit structure of the sound effect processing module of the present invention.
Description of the element reference numerals
1 microphone
2 Relay transmitter
21 microphone interface
22 radio transmitting module
221 analog-to-digital conversion unit
222-channel merging and stereo coding unit
223 radio transmitting unit
23 Power supply switch
24 volume regulating switch
3 wireless receiving module
31 radio receiving unit
32 decoding and channel decomposition unit
33 digital-to-analog conversion unit
4 sound effect processing module
41 first sound effect processing unit
42 second sound effect processing unit
43 third sound effect processing unit
44 merging unit
5 Sound producing device
6 power amplifier
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Please refer to fig. 1 to 4. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
As shown in fig. 1, the utility model provides a wireless karaoke singing system, wireless karaoke singing system includes:
the system comprises a microphone 1, a relay transmitter 2, a wireless receiving module 3, a sound effect processing module 4 and a sound production device 5.
As shown in fig. 1, the microphone is connected to the relay transmitter 2, and collects a human voice signal through an internal sound pickup.
Specifically, in this embodiment, the number of the microphones 1 is set to 2, and in actual use, the number of the microphones 1 may be set as needed, which is not limited to this embodiment.
Specifically, in this embodiment, the microphone 1 is a wired microphone, and the signal transmission is realized through a signal line and the relay transmitter 2.
As shown in fig. 1, the relay transmitter 2 is connected to each microphone 1, combines the output signals of the microphones into a stereo signal, encodes the stereo signal, and wirelessly transmits the stereo signal.
Specifically, in the present embodiment, the relay transmitter 2 is provided with microphone interfaces 21, and the number of the microphone interfaces 21 is not less than 2, which can be set according to the number of microphones. The two microphones 1 are respectively connected with the two microphone interfaces 21 in a one-to-one correspondence manner through signal lines.
Specifically, in the present embodiment, the relay transmitter 2 includes at least a wireless transmission module 22. As shown in fig. 2, the wireless sending module 22 includes an analog-to-digital conversion unit 221, a channel combination and stereo coding unit 222, and a wireless sending unit 223, where the analog-to-digital conversion unit 221 converts analog audio signals collected by the microphones into digital signals, and the channel combination and stereo coding unit 222 is connected to the analog-to-digital conversion unit 221, and converts the digitized audio signals into stereo signals and codes the stereo signals to form stereo coded signals, and in this embodiment, the stereo signals include two channels. The wireless sending unit 223 is connected to the channel combination and stereo coding unit 222, and transmits the stereo coded signal in a form of wireless signal. The relay transmitter 2 further includes a power module (not shown), which is not described herein.
As an implementation manner of the present invention, the relay transmitter 2 further includes but is not limited to a power switch 23 and a volume adjusting switch 24, which are not described herein in detail.
As shown in fig. 1, the wireless receiving module 3 receives the stereo coded signal sent by the relay transmitter 2, decodes and decomposes the stereo coded signal into analog microphone signals of two channels.
Specifically, as shown in fig. 3, in the present embodiment, the wireless receiving module 3 includes a wireless receiving unit 31, a decoding and channel decomposing unit 32, and a digital-to-analog converting unit 33. The wireless receiving unit 31 and the wireless transmitting unit 223 form a wireless transceiving system, and the wireless receiving unit 31 receives a stereo signal transmitted by the wireless transmitting unit 223. The decoding and channel decomposing unit 32 is connected to the wireless receiving unit 31, and decodes and decomposes the stereo coded signal into two channels of digital microphone signals, and the digital-to-analog converting unit 33 is connected to the decoding and channel decomposing unit 32, and converts the two channels of digital microphone signals into analog signals. The frequency band of the wireless signal transmitted by the wireless receiving module 3 and the relay transmitter 2 includes but is not limited to FM, AM, V-band, U-band or 2.4G, and the frequency band of the signal can be set as required, which is not described herein again.
As shown in fig. 1, the sound effect processing module 4 is connected to the wireless receiving module 3 and receives the sound source signals, and performs sound effect processing and combining on the analog microphone signals of the two sound channels and the sound source signals, respectively.
Specifically, as shown in FIG. 4, in the present embodiment, the sound effect processing module 4 includes a first sound effect processing unit 41, a second sound effect processing unit 42, a third sound effect processing unit 43 and a merging unit 44. The first sound effect processing unit 41 receives the analog microphone signal of the first channel, and performs sound effect processing on the analog microphone signal of the first channel. The second sound effect processing unit 42 receives the analog microphone signal of the second channel, and performs sound effect processing on the analog microphone signal of the second channel. The third sound effect processing unit 43 receives the sound source signal and performs sound effect processing on the sound source signal. The merging unit 44 is connected to the first audio processing unit 41, the second audio processing unit 42, and the third audio processing unit 43, and merges and outputs the output signals of the first audio processing unit 41, the second audio processing unit 42, and the third audio processing unit 43. The first sound effect processing unit 41, the second sound effect processing unit 42 and the third sound effect processing unit 43 include but are not limited to sound effects such as high pitch, low pitch and variable pitch, which are not described herein in detail.
Specifically, the sound source signal includes but not limited to the accompaniment, arbitrary can all be applicable with the sound source signal that the microphone signal merges in order to increase the audio effect the utility model discloses.
As shown in fig. 1, the sound generating device 5 is connected to the sound effect processing unit 4, and plays the received signal.
Specifically, the sound generating device 5 includes, but is not limited to, a sound box, and converts the signal output by the sound effect processing unit 4 into sound.
As shown in fig. 1, as an implementation manner of the present invention, the wireless karaoke singing system further includes a power amplifier 6. The power amplifier 6 is connected between the sound effect processing module 4 and the sound generating device 5, and outputs the signal output by the sound effect processing module 4 to the sound generating device 5 after amplifying the signal.
The wireless karaoke singing system of the utility model can realize the wireless karaoke by two persons by only one set of wireless receiving and sending system, thus saving the cost; and simultaneously, the utility model discloses after decomposing received stereo signal into the microphone signal of two sound channels, carry out the audio respectively and handle, can realize richer sound effect from this.
To sum up, the utility model provides a wireless karaoke singing system, include: two microphones; the relay transmitter is connected with the microphone and comprises a wireless transmitting module; the wireless sending module carries out analog-to-digital conversion on the signals collected by the microphones, carries out stereo coding and then sends the stereo coding signals; the wireless receiving module is used for receiving the stereo coding signal sent by the wireless sending module, decoding and decomposing the stereo coding signal into microphone signals of two sound channels, and performing digital-to-analog conversion to obtain an analog audio signal; the sound effect processing module is connected with the wireless receiving module and receives sound source signals, and sound effect processing and combination are respectively carried out on the analog microphone signals of the two sound channels and the sound source signals; and the sound production equipment is connected with the sound effect processing unit and plays the received signals. The utility model discloses a wireless karaoke singing system forms stereophonic signal through a microphone audio frequency relay box two way wired signal coding, only needs can realize double karaoke through a pair of wireless transmission and receiving chip, has reduced the quantity of wireless transmission and wireless receiving chip in wireless karaoke singing system to can carry out the audio to the microphone signal of different sound channels alone and handle, richen sound effect. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A wireless karaoke singing system, said wireless karaoke singing system comprising at least:
two microphones;
the relay transmitter is connected with the microphones and comprises a wireless transmitting module, and the wireless transmitting module is used for carrying out analog-to-digital conversion on the signals collected by the microphones and then coding the signals into stereo coded signals and transmitting the stereo coded signals;
the wireless receiving module is used for receiving the stereo coding signal sent by the wireless sending module, decoding and decomposing the stereo coding signal into microphone signals of two sound channels, and performing digital-to-analog conversion to obtain an analog signal;
the sound effect processing module is connected with the wireless receiving module and receives sound source signals, and sound effect processing and combination are respectively carried out on the analog microphone signals of the two sound channels and the sound source signals;
and the sound production equipment is connected with the sound effect processing module and plays the received signal.
2. The wireless karaoke singing system of claim 1, wherein: and microphone interfaces are arranged on the relay transmitter, and the number of the microphone interfaces is not less than that of the microphones.
3. The wireless karaoke singing system of claim 1, wherein: the relay transmitter further comprises a power switch and a volume adjustment switch.
4. The wireless karaoke singing system of claim 1, wherein: the signal frequency bands transmitted by the wireless transmitting module and the wireless receiving module comprise FM, AM, V band, U band or 2.4G.
5. The wireless karaoke singing system of claim 1, wherein: the wireless sending module comprises an analog-to-digital conversion unit, a sound channel merging and stereo coding unit and a wireless sending unit; the analog-to-digital conversion unit converts analog audio signals collected by the two microphones into digital audio signals; the sound channel merging and stereo coding unit converts the two paths of digital audio signals into stereo signals and codes the stereo signals to form stereo coded signals; the wireless sending unit is connected with the sound channel combination and stereo coding unit and sends the stereo coding signal.
6. The wireless karaoke singing system of claim 1, wherein: the wireless receiving module comprises a wireless receiving unit, a decoding and sound channel decomposing unit and a digital-to-analog converting unit; the wireless receiving unit receives the stereo coded signal; the decoding and sound channel decomposing unit is connected with the wireless receiving unit and used for decoding and decomposing the stereo coding signal into two paths of digital microphone signals; the digital-to-analog conversion unit is connected with the decoding and sound channel decomposition unit and converts the two paths of digital microphone signals into two paths of analog microphone signals.
7. The wireless karaoke singing system of claim 1, wherein: the sound effect processing module comprises a first sound effect processing unit, a second sound effect processing unit, a third sound effect processing unit and a merging unit; the first sound effect processing unit receives an analog microphone signal of a first sound channel and performs sound effect processing on the analog microphone signal of the first sound channel; the second sound effect processing unit receives an analog microphone signal of a second channel and performs sound effect processing on the analog microphone signal of the second channel; the third sound effect processing unit receives the sound source signal and performs sound effect processing on the sound source signal; the merging unit is connected with the first sound effect processing unit, the second sound effect processing unit and the third sound effect processing unit, and outputs the output signals of the first sound effect processing unit, the second sound effect processing unit and the third sound effect processing unit after merging.
8. The wireless karaoke singing system of claim 1, wherein: the sound generating device comprises a sound box.
9. The wireless karaoke singing system according to any one of claims 1 to 8, wherein: the wireless karaoke singing system further comprises a power amplifier, wherein the power amplifier is connected between the sound effect processing module and the sound production equipment, and is used for amplifying the signal output by the sound effect processing module and then outputting the amplified signal to the sound production equipment.
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| CN202020494436.1U CN212276800U (en) | 2020-04-07 | 2020-04-07 | Wireless karaoke OK singing system |
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| CN202020494436.1U CN212276800U (en) | 2020-04-07 | 2020-04-07 | Wireless karaoke OK singing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113066461A (en) * | 2021-03-13 | 2021-07-02 | 辛巴网络科技(南京)有限公司 | Vehicle-mounted KTV method based on 5G combined with AVM technology |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113066461A (en) * | 2021-03-13 | 2021-07-02 | 辛巴网络科技(南京)有限公司 | Vehicle-mounted KTV method based on 5G combined with AVM technology |
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Effective date of registration: 20210723 Address after: 201203 block D, 3rd floor, building 2, Lane 1238, Zhangjiang Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: SHANGHAI MOUNTAIN VIEW SILICON Co.,Ltd. Address before: 201101 Room 102, No.18, Lane 1666, Qishen Road, Minhang District, Shanghai Patentee before: Yin Yufan |
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