CN207529651U - Digital wireless audio multicast device applied to karaoke OK system - Google Patents
Digital wireless audio multicast device applied to karaoke OK system Download PDFInfo
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- CN207529651U CN207529651U CN201721754286.8U CN201721754286U CN207529651U CN 207529651 U CN207529651 U CN 207529651U CN 201721754286 U CN201721754286 U CN 201721754286U CN 207529651 U CN207529651 U CN 207529651U
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Abstract
The utility model is related to the field of playing Karaoka, specifically applied to the digital wireless audio multicast device of karaoke OK system, including Karaoke audio signal processor, a digital wireless audio emitter and several wireless audio reception devices；The Karaoke audio signal processor connects music input module, microphone input module and digital wireless audio emitter respectively, the digital wireless audio emitter respectively with several wireless audio reception device wireless connections.The utility model provides a kind of digital wireless audio multicast device applied to karaoke OK system, it is transmitted by the multicast of digital wireless audio signal, audio is using wireless transmission, traditional outer playback is replaced to ring with earphone, reach non-interfering purpose between user, can more people be used together, also solve the problems, such as Karaoke place noise it is big, avoid disturbing residents.
Description
Technical field
The utility model is related to the fields of playing Karaoka, and are especially applied to the digital wireless audio multicast of karaoke OK system
Device.
Background technology
Karaoke place is greatly enriched the amateur entertainment life of people, but existing karaoke OK system is sung in user
When, the sound that audio device is put outside usually can be excessive, and the sound that each room sound equipment generates interferes with each other, and influences music effect,
Audiovisual experience is poor；Also when people need peace and quiet environment, such as when receiving calls, due to musical sound mistake in Karaoke place
Greatly, it also has to go to outside to go to answer；In addition Karaoke place is largely opened in bustling urban district, people is more, and resident is more, then adds
Noise caused by upper Karaoke field forms noise pollution, seriously disturbs residents.
Utility model content
In order to overcome the disadvantages mentioned above of the prior art, the purpose of this utility model is to provide a kind of applied to karaoke OK system
Digital wireless audio multicast device, transmitted by the multicast of digital wireless audio signal, using wireless transmission sound
Frequently, traditional outer playback is replaced to ring with earphone, reaches non-interfering purpose between user, can more people be used together, it is also effective
It solves the problems, such as that Karaoke place noise is big, avoids disturbing residents.
Technical solution is used by the utility model solves its technical problem：Digital radio applied to karaoke OK system
Audio multicast device, including Karaoke audio signal processor, a digital wireless audio emitter and several
Wireless audio reception device；
The Karaoke audio signal processor connects music input module, microphone input module and digital radio respectively
Audio emitting device, the digital wireless audio emitter respectively with several wireless audio reception device wireless connections；
The wireless audio reception device includes sequentially connected digital radio receiver module, audio processing modules and ear
Machine, the audio processing modules include D/A converting circuit and audio post-processing circuit；
The Karaoke audio signal processor includes sequentially connected audio input port, digital signal processing module
And Digital audio output port, the digital signal processing module include analog to digital conversion circuit and Karaoke Audio Signal Processing electricity
Road.Analog-digital conversion circuit as described is used to analog audio signal being converted into digital audio and video signals, Karaoke Audio Signal Processing electricity
The karaoke effect that road is used to carry out obtained digital music and microphone audio signal profession is handled, and meets karaoke OK system
Demand.
Preferably, the audio input port connects music input module and microphone input module, the number sound respectively
Frequency output port connects the digital wireless audio emitter for sending digital audio and video signals.
The audio input port is analog audio input port or digital audio input port.
Preferably, the wireless audio reception device is integrated wireless headphone device or digital wireless audio receiver adds biography
The split equipment of system wired earphone；The microphone input module is wireless microphone equipment or cable microphone equipment.
Compared with prior art, the beneficial effects of the utility model are：A kind of digital radio applied to karaoke OK system
Audio multicast device is transmitted by the multicast of digital wireless audio signal, using using audio is wirelessly transferred, uses ear
Machine replaces traditional outer playback to ring, and is not interfere with each other between user, can more people be used together, music effect is good；It does not need to listen performance
When can also take earphone, it is easy to use；And it solve thes problems, such as that Karaoke place noise is big, avoids disturbing residents.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the earphone power amplifier schematic diagram of embodiment one.
Fig. 3 is the audio input circuit schematic diagram of embodiment one.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
Embodiment one：Referring to Fig. 1, the digital wireless audio multicast device applied to karaoke OK system, including card
Draw OK audio signal processors, a digital wireless audio emitter and several wireless audio reception devices；The card
OK audio signal processors is drawn to connect music input module, microphone input module and digital wireless audio emitter respectively,
The digital wireless audio emitter respectively with several wireless audio reception device wireless connections；
The wireless audio reception device includes sequentially connected digital radio receiver module, audio processing modules and ear
Machine, the audio processing modules include D/A converting circuit and audio post-processing circuit；
The digital radio receiver module is used to receive the digital wireless audio letter of digital wireless audio emitter transmission
Number, a digital wireless audio emitter can send digital radio sound to one or more digital radio receiver modules simultaneously
Frequency signal；The digital wireless audio signal received is converted into analog audio signal, audio later stage by the D/A converting circuit
The analogue audio frequency that processing circuit exports D/A converting circuit carries out gain control and power amplification is handled, after power amplification
Audio signal earphone is driven to export again.
The earphone includes earphone power amplifier, referring to Fig. 2, in the present embodiment, the earphone power amplifier includes
Chip U6A and chip U6B, the model TPA6120A2 of the chip U6A and U6B, for the high-fidelity based on current feedback framework
Audio-frequency power amplifier, with the characteristics of bandwidth height, noise is extremely low, audio is outstanding.
The Karaoke audio signal processor includes sequentially connected audio input port, digital signal processing module
And Digital audio output port, the digital signal processing module include analog to digital conversion circuit and Karaoke Audio Signal Processing electricity
Road.
The audio input port is analog audio input port, since the transmission and processing of analog audio signal are not as good as number
Word signal is convenient, and analog audio signal is converted into digital audio and video signals, then pass through card by the analog to digital conversion circuit in the present embodiment
The karaoke effect processing that OK audio signal processing circuits carry out digital audio and video signals profession is drawn to handle, the digital sound handled well
Frequency signal is launched by the special digital wireless audio transmitting module of high-fidelity low delay, dedicated digital wireless audio hair
Penetrate the need that module transfer delay is few, and digital audio and video signals preservation degree is high, disclosure satisfy that the sound quality of karaoke OK system requirement and is delayed
It asks.
The audio input port connects music input module and microphone input module, the Digital audio output port respectively
For sending the digital wireless audio emitter of digital audio and video signals, the digital wireless audio emitter includes for mouth connection
Wireless transmitter.
The audio input port further includes audio input circuit, and the audio input circuit that the present embodiment uses please refers to figure
3, the audio signal that music input module or microphone input module input carries out low level signal amplification processing through audio input circuit, then
The analog to digital conversion circuit for being sent to the digital signal processing module is converted.
The wireless audio reception device is digital wireless audio equipment, and wireless connection is more convenient to use；It is described
Microphone input module is wireless microphone equipment or cable microphone equipment.
The integrated ear that digital wireless audio reception pattern is applied in the present embodiment can be used in the wireless audio reception device
Machine equipment or use digital wireless audio receiving module add the form of the split of conventional earphone, in the specific reality of wireless audio frequency transmission function
Shi Shi, preferably using 5.8G wireless transmissions or 2.4G wireless transmissions；Wherein, the available data of 2.4G Radio Transmission Technologys pass
Defeated rate is higher, and sound quality is preferable, can meet the transmission of HD Audio substantially, due to 2.4G wireless technologys popularize it is relatively early, because
This manufacture advantage of lower cost, but the wireless device of the frequency band is relatively more, frequency resource growing tension, interference is opposite just more
；The frequency range that uses of 5.8G wireless transmissions is a frequency range more higher than 2.4GHZ frequency, compared to 2.4G, due to bandwidth more
Height, therefore have transmission rate high, can transmit the audio of higher standard, and due to technology popularize it is late than 2.4G, in frequency band wirelessly
Equipment is relatively fewer, therefore has better interference free performance.
The major function of the utility model：A kind of digital wireless audio multicast device applied to karaoke OK system,
Audio using wireless transmission, traditional outer playback is replaced to ring with earphone, is not interfere with each other between user, can more people be used together；And
And solve the problems, such as that Karaoke place noise is big, it does not disturb residents.
In conclusion after those of ordinary skill in the art read the utility model file, skill according to the present utility model
Art scheme and technical concept make other various corresponding conversion schemes without creative mental labour, and it is new to belong to this practicality
The range that type is protected.
Claims (4)
1. the digital wireless audio multicast device applied to karaoke OK system, it is characterised in that：Including Karaoke audio letter
Number processing unit, a digital wireless audio emitter and several wireless audio reception devices；
The Karaoke audio signal processor connects music input module, microphone input module and digital wireless audio respectively
Emitter, the digital wireless audio emitter respectively with several wireless audio reception device wireless connections；
The wireless audio reception device includes sequentially connected digital radio receiver module, audio processing modules and earphone, institute
It states audio processing modules and includes D/A converting circuit and audio post-processing circuit；
The Karaoke audio signal processor includes sequentially connected audio input port, digital signal processing module and number
Word audio output port, the digital signal processing module include analog to digital conversion circuit and Karaoke audio signal processing circuit.
2. the digital wireless audio multicast device according to claim 1 applied to karaoke OK system, feature exists
In：The audio input port connects music input module and microphone input module respectively, and the Digital audio output port connects
Connect the digital wireless audio emitter for sending digital audio and video signals.
3. the digital wireless audio multicast device according to claim 1 or 2 applied to karaoke OK system, feature
It is：The audio input port is analog audio input port or digital audio input port.
4. the digital wireless audio multicast device according to claim 1 applied to karaoke OK system, feature exists
In：The wireless audio reception device is integrated wireless headphone device or digital wireless audio receiver adds traditional wire earphone
Split equipment；The microphone input module is wireless microphone equipment or cable microphone equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754286.8U CN207529651U (en) | 2017-12-15 | 2017-12-15 | Digital wireless audio multicast device applied to karaoke OK system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754286.8U CN207529651U (en) | 2017-12-15 | 2017-12-15 | Digital wireless audio multicast device applied to karaoke OK system |
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| CN207529651U true CN207529651U (en) | 2018-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261544A (en) * | 2020-10-14 | 2021-01-22 | 贵州奥斯科尔科技实业有限公司 | Interaction device and interaction method for controlling display screen by microphone |
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2017
- 2017-12-15 CN CN201721754286.8U patent/CN207529651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261544A (en) * | 2020-10-14 | 2021-01-22 | 贵州奥斯科尔科技实业有限公司 | Interaction device and interaction method for controlling display screen by microphone |
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Effective date of registration: 20220311 Address after: 510805 rooms 608 and 609, No. 56-3, Fenghuang South Road, Xinya street, Huadu District, Guangzhou, Guangdong Province Patentee after: Guangdong Jichang Technology Co.,Ltd. Address before: 510000 No. 2, west of phase II, administration building, No. 8, Jinghu Avenue, Xinya street, Huadu District, Guangzhou, Guangdong Patentee before: GUANGDONG ZHONGYI YUNWANG INTELLIGENT TECHNOLOGY CO.,LTD. |