CN109714671A - A kind of wireless K song sound system - Google Patents
A kind of wireless K song sound system Download PDFInfo
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- CN109714671A CN109714671A CN201711015693.1A CN201711015693A CN109714671A CN 109714671 A CN109714671 A CN 109714671A CN 201711015693 A CN201711015693 A CN 201711015693A CN 109714671 A CN109714671 A CN 109714671A
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Abstract
The present invention proposes a kind of wireless K song sound system, by the way that human voice signal's processing unit, music accompaniment signal processing unit, downmixing unit are arranged in microphone, the K for effectively promoting user sings experience, and by provide have wireless receiving function sound amplifier, receive and reset from K song microphone send wireless signal so as to easily realize full Wireless for more people simultaneously entertain K song sound system.
Description
Technical field
The invention belongs to audio frequency field, in particular to a kind of wireless K sings sound system.
Background technique
The mobile terminals such as mobile phone, tablet computer are gradually popularized, network bandwidth is constantly promoted, the K of various suitable mobile terminals
Song software is also used by more and more users, is increasingly becoming popular personal entertainment mode；When generally with mobile phone K song,
The microphone and loudspeaker that wire microphone earphone is inserted into mobile terminal or is directly carried using mobile terminal are needed, the former
Both in addition the constraint experience that user will receive cable is bad, and the latter, which is then easy to produce echo and utters long and high-pitched sounds, causes song effect to be deteriorated,
The real-time monitoring that can not achieve voice makes user lack telepresenc；The solution of some wireless K songs has been had already appeared in the prior art
Certainly scheme, but can only substantially be entertained for one people of user in currently existing scheme, and K song is often that more people participate in jointly could more
Has enjoyment, therefore currently existing scheme is not met by the needs of more people's amusements.
Summary of the invention
In order to overcome the drawbacks of the prior art, the present invention proposes a kind of wireless K song sound system, by being arranged in microphone
Human voice signal's processing unit, music accompaniment signal processing unit, downmixing unit, the K for effectively promoting user sing experience, and by mentioning
For the sound amplifier with wireless receiving function, receives and reset the wireless signal from K song microphone transmission so as to side
Just the K of realization full Wireless entertained simultaneously for more people sings sound system.
It is proposed a kind of wireless K song system, including wireless K song microphone, mobile terminal and sound amplifier；Wherein, wireless K song words
Cylinder includes microphone, for receiving voice and being converted into electric signal；Preamplifier receives the telecommunications from microphone
Number, and electric signal is amplified；It is characterized in that, further including human voice signal's processing unit, receive from preposition amplification
The human voice signal of device, and effect process is carried out to human voice signal；It further comprise Bluetooth audio frequency Transmit-Receive Unit, which receives
Bill member is used to carry out bluetooth connection with mobile terminal, and receives the music accompaniment signal M from mobile terminal；It further include music
Accompany signal processing unit, receive Bluetooth audio frequency Transmit-Receive Unit forwarding music accompaniment signal and to the music accompaniment signal into
Row processing；It further comprise downmixing unit, which receives the human voice signal and music companion from human voice signal's processing unit
The music accompaniment signal of signal processing unit is played, and the two is mixed；Downmixing unit is by mixed musical background and people
Acoustical signal is sent to Bluetooth audio frequency Transmit-Receive Unit, and Bluetooth audio frequency Transmit-Receive Unit is by the mixed signal of the musical background and human voice signal
M+V is returned to mobile terminal by bluetooth connection, carries out subsequent processing by mobile terminal；Further, microphone is sung in the wireless K
In be additionally provided with wireless transmission unit, downmixing unit also simultaneously sends mixed musical background and voice mixed signal simultaneously
To wireless transmission unit, which is sent to expansion for the musical background and voice mixed signal in a manner of transmitting wirelessly
Acoustic equipment；Sound amplifier includes radio receiving unit, for receiving above-mentioned musical background and voice mixed signal, and by signal into
Row demodulation；It further include audio signal processing unit, for handling the signal after demodulation；It further include loudspeaker, for connecing
The signal from audio signal processing unit is received, and converts electrical signals to acoustical signal, thus by above-mentioned musical background and people
Sound mixed signal resets out.
Wherein, wireless K song microphone further comprises dynamic compression unit, receives the human voice signal from preamplifier,
And dynamic control further is carried out to human voice signal；It is then separately installed with to be integrated in mobile terminal and can cooperate wireless K song microphone
The M+V signal for receiving its uplink the first application program and the second application program for music,
In by the second application program provide music accompaniment signal M, and by the first application records M+V signal；The cooperation includes
It is integrated in the first application program and is suitable for the SDK that wireless K song microphone uses.
The mobile network for being connected M+V signal recording in the terminal or by mobile terminal by the first application program
It is sent；The wireless transmission mode includes using radio station FM broadcast mode, uhf band broadcast mode, 2.4G multi-band broadcast
Mode.
For above system, wherein mobile terminal includes mobile phone, tablet computer, laptop computer；Sound amplifier includes
Speaker, television set, one kind of earphone or in which at least two distinct devices；When sound amplifier includes earphone, earphone quantity is at least
It is one；The downlink transfer of the music accompaniment signal M between wireless K song microphone and mobile terminal is carried out using the channel bluetooth A2DP,
The uplink of voice and music mix signal M+V is carried out using blue tooth RFCOMM channel.
Detailed description of the invention
Fig. 1 is the system block diagram that wireless K of the invention sings sound system
Specific embodiment
In conjunction with attached drawing, wireless K song sound system of the invention is described in detail.Attached drawing 1 shows of the invention whole
The Each part and signal flow diagram of a wireless K song sound system, the system include wireless K song microphone 1, mobile terminal 2 and expand
Acoustic equipment 3；Wherein, wireless K song microphone 1 includes microphone 11, for receiving voice and being converted into electric signal；Preposition amplification
Device 12 receives the electric signal from microphone 11, and amplifies to electric signal；It optionally, further include dynamic compression unit
13, the human voice signal from preamplifier 12 is received, and dynamic control further is carried out to human voice signal, avoids signal amplitude
Overload causes distorsion；Human voice signal's processing unit 14 receives the people from preamplifier 12 (dynamic compression unit 13)
Acoustical signal, and effect process, including EQ (equilibrium) adjusting, addition reverberation etc. are carried out to human voice signal, specific signal processing is real
Existing method belongs to techniques known (such as handling using various filters, delayer etc. human voice signal),
Details are not described herein again, and the sense of hearing of voice is thus made to meet the needs of user, achievees the purpose that beautify voice；This is wireless, and K sings microphone 1
It further comprise Bluetooth audio frequency Transmit-Receive Unit 16, which is used to carry out bluetooth connection with mobile terminal 2,
And reception is from the music accompaniment signal M of mobile terminal 2；Further include music accompaniment signal processing unit 17, receives bluetooth sound
Frequency Transmit-Receive Unit 16 forward music accompaniment signal simultaneously the music accompaniment signal is handled, it is described processing include EQ adjust,
Dynamic control, voice elimination etc., specific signal processing implementation method belongs to techniques known, also repeats no more；Into
One step includes downmixing unit 15, which receives human voice signal and music accompaniment signal from human voice signal's processing unit 14
The music accompaniment signal of processing unit 17, and the two is mixed；Downmixing unit 15 is by mixed musical background and voice
Signal is sent to Bluetooth audio frequency Transmit-Receive Unit 16, and Bluetooth audio frequency Transmit-Receive Unit 16 believes the musical background and the mixing of human voice signal
Number M+V is returned to mobile terminal 2 by bluetooth connection, carries out subsequent processing by mobile terminal 2；Wherein, in mobile terminal 2 respectively
It is equipped with and is integrated with the application program 21 and sound of the M+V signal for receiving its uplink that can cooperate wireless K song microphone 1
Happy play-back application 22, the cooperation include being integrated with to be suitable for wireless K song microphone 1 and use in application program 21
SDK (software development kit) wherein providing music accompaniment signal M by music application program 22, and records M by application program 21
+ V signal, for example, be recorded in mobile terminal 2 or directly sent by the mobile network that mobile terminal 2 connects (such as
For being broadcast live or sharing)；Further, as important improvement point of the invention, nothing is additionally provided in the wireless K song microphone 1
Mixed musical background and voice mixed signal are also sent to wireless hair simultaneously by line transmission unit 18, downmixing unit 15 simultaneously
Unit 18 is sent, which is sent to public address for the musical background and voice mixed signal in a manner of transmitting wirelessly and sets
Standby 3, which includes using radio station FM broadcast mode, uhf band broadcast mode, 2.4G multi-band broadcast mode etc.,
These implementations are the prior art, can directly select existing module and be applied, details are not described herein again；Sound amplifier 3 wraps
Radio receiving unit 31 is included, is demodulated for receiving above-mentioned musical background and voice mixed signal, and by signal；It further include sound
Audio signalprocessing unit 32, for carrying out the processing including signal amplification to the signal after demodulation；It further include loudspeaker 33,
For receiving the signal from audio signal processing unit 32, and acoustical signal is converted electrical signals to, thus the above-mentioned music
Accompaniment and voice mixed signal reset out, and not only singer oneself can hear, but also more people can listen to simultaneously.
Wireless K song microphone 1 is matched with mobile terminal 2 by bluetooth first, is established when using the system by user
Bluetooth connection is played, music application program 22 sends music accompaniment signal M to wireless K by the bluetooth connection and sings microphone 1, nothing
Line K sings microphone 1 and receives the voice of user, and will be added to the musical background of the human voice signal and musical background effect of vocal effects
Signal is mixed, then the mixed signal is sung microphone by the corresponding wireless K that is integrated with that bluetooth returns to mobile terminal 2
The application program 21 of 1 SDK, while using sound amplifier 3 is wirelessly transmitted to, it is reset, then can be made by sound amplifier 3
The participant at scene can hear the sound of performance, have the sound amplifier 3 of wireless receiving function by providing, can make this
Wireless K song sound system reduces the constraint of cable on the whole, greatly improves K song experience.
Wherein, above-mentioned mobile terminal 2 can be mobile phone, tablet computer, laptop computer etc.；Sound amplifier 3 may include sound
Case, television set, earphone etc., when sound amplifier 3 be earphone when, earphone can have it is multiple, except singer wear in addition to also for more people
Use, the signal that community radio reception is broadcasted from wireless K song microphone 1, experience K Nikkei interest are worn simultaneously；Further, public address is set
Standby 3 can include simultaneously two or more distinct device, such as wear earphone by singer, audience then listens to speaker or TV
It the case where sound that machine is reset, can also be freely combined certainly.
Wherein, the downlink transfer of the musical background M of the bluetooth connection between wireless K song microphone 1 and mobile terminal 2 uses A2DP
Channel, and the uplink of voice and the mixed signal M+V of music then use blue tooth RFCOMM channel, code encoding/decoding mode uses
Thus one of SBC, OPUS, Apt-X, AAC can realize the low delay, Whole frequency band and channel transmission of uplink, greatly promote
The fidelity of uplink signal.
Rational modification of the those skilled in the art on the basis of disclosure of invention should all be regarded as belonging to guarantor of the invention
Protect range.
Claims (10)
1. a kind of wireless K sings sound system, including wireless K song microphone (1), mobile terminal (2) and sound amplifier (3)；Wherein, nothing
It includes microphone (11) that line K, which sings microphone (1), for receiving voice and being converted into electric signal；Preamplifier (12) receives
Electric signal from microphone (11), and electric signal is amplified；It is characterized in that, further including human voice signal's processing unit
(14), the human voice signal from preamplifier (12) is received, and effect process is carried out to human voice signal；Further comprise
Bluetooth audio frequency Transmit-Receive Unit (16), which is used to carry out bluetooth connection with mobile terminal (2), and connects
Receive and dispatch the music accompaniment signal M from mobile terminal (2)；Further include music accompaniment signal processing unit (17), receives bluetooth sound
The music accompaniment signal of frequency Transmit-Receive Unit (16) forwarding is simultaneously handled the music accompaniment signal；It further comprise downmixing unit
(15), which receives the human voice signal from human voice signal's processing unit (14) and music accompaniment signal processing unit (17)
Music accompaniment signal, and the two is mixed；Downmixing unit (15) sends mixed musical background and human voice signal
To Bluetooth audio frequency Transmit-Receive Unit (16), Bluetooth audio frequency Transmit-Receive Unit (16) is by the mixed signal M+ of the musical background and human voice signal
V is returned to mobile terminal (2) by bluetooth connection, carries out subsequent processing by mobile terminal (2)；Further, it is sung in the wireless K
It is additionally provided in microphone (1) wireless transmission unit (18), downmixing unit (15) is also simultaneously by mixed musical background and voice
Mixed signal is sent to wireless transmission unit (18) simultaneously, which mixes letter for the musical background and voice
Number sound amplifier (3) are sent in a manner of wireless transmission；Sound amplifier (3) includes radio receiving unit (31), for receiving
Musical background and voice mixed signal are stated, and signal is demodulated；It further include audio signal processing unit (32), for solution
Signal after tune is handled；It further include loudspeaker (33), for receiving the signal from audio signal processing unit (32),
And acoustical signal is converted electrical signals to, so that above-mentioned musical background and voice mixed signal be reset out.
2. wireless K as described in claim 1 sings sound system, it is characterized in that, wireless K song microphone (1) further comprises dynamic
Compression unit (13) receives the human voice signal for coming from preamplifier (12), and further carries out dynamic control to human voice signal.
3. wireless K as described in claim 1 sings sound system, it is characterized in that, is separately installed with and is integrated in mobile terminal (2)
The first application program (21) of the M+V signal for receiving its uplink of wireless K song microphone (1) can be cooperated and for sound
Happy the second application program (22) played, wherein music accompaniment signal M is provided by the second application program (22), and by the first application
Program (21) records M+V signal.
4. wireless K as claimed in claim 3 sings sound system, it is characterized in that, the cooperation is included in the first application program
(21) it is integrated in and is suitable for the SDK that wireless K song microphone (1) uses.
5. wireless K as claimed in claim 3 sings sound system, it is characterized in that, is recorded M+V signal by the first application program (21)
It makes in mobile terminal (2) or is sent by the mobile network that mobile terminal (2) connect.
6. wireless K as described in claim 1 sings sound system, it is characterized in that, the wireless transmission mode includes using radio station
FM broadcast mode, uhf band broadcast mode, 2.4G multi-band broadcast mode.
7. the wireless K as described in one of claim 1-6 sings sound system, it is characterized in that, mobile terminal (2) includes mobile phone, puts down
Plate computer, laptop computer.
8. the wireless K as described in one of claim 1-6 sings sound system, it is characterized in that, sound amplifier (3) includes speaker, electricity
Depending on machine, one kind of earphone or in which at least two distinct devices.
9. wireless K as claimed in claim 8 sings sound system, it is characterized in that, when sound amplifier (3) includes earphone, earphone number
Amount is at least one.
10. the wireless K as described in one of claim 1-6 sings sound system, it is characterized in that, carries out nothing using the channel bluetooth A2DP
Line K sings the downlink transfer of the music accompaniment signal M between microphone (1) and mobile terminal (2), carries out people using blue tooth RFCOMM channel
The uplink of sound and music mix signal M+V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015693.1A CN109714671A (en) | 2017-10-26 | 2017-10-26 | A kind of wireless K song sound system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015693.1A CN109714671A (en) | 2017-10-26 | 2017-10-26 | A kind of wireless K song sound system |
Publications (1)
| Publication Number | Publication Date |
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| CN109714671A true CN109714671A (en) | 2019-05-03 |
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ID=66253526
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711015693.1A Withdrawn CN109714671A (en) | 2017-10-26 | 2017-10-26 | A kind of wireless K song sound system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110730409A (en) * | 2019-11-20 | 2020-01-24 | 深圳巴金科技有限公司 | Karaoke system, karaoke method and family scene Karaoke system |
| CN110728969A (en) * | 2019-11-20 | 2020-01-24 | 深圳巴金科技有限公司 | Double-point sounding karaoke system and method |
| CN111261175A (en) * | 2020-01-17 | 2020-06-09 | 北京塞宾科技有限公司 | Bluetooth audio signal transmission method and device |
| CN112272338A (en) * | 2020-10-28 | 2021-01-26 | 重庆百瑞互联电子技术有限公司 | Wireless microphone device and karaoke method |
| CN115691456A (en) * | 2021-07-21 | 2023-02-03 | 比亚迪股份有限公司 | Vehicle-mounted audio playing method and device, multimedia host and storage medium |
| WO2023217003A1 (en) * | 2022-05-07 | 2023-11-16 | 北京字跳网络技术有限公司 | Audio processing method and apparatus, device, and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110730409A (en) * | 2019-11-20 | 2020-01-24 | 深圳巴金科技有限公司 | Karaoke system, karaoke method and family scene Karaoke system |
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| WO2023217003A1 (en) * | 2022-05-07 | 2023-11-16 | 北京字跳网络技术有限公司 | Audio processing method and apparatus, device, and storage medium |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200417 Address after: 100085 12A-2, B, block 28, information road, Haidian District, Beijing. Applicant after: BEIJING SABINE TECHNOLOGIES Ltd. Address before: 100022 Hengrun commercial center 12F, 1 Huang Mu Chang Road, Chaoyang District, Beijing Applicant before: Zhang Deming |
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Application publication date: 20190503 |