CN106303118A - Intelligent terminal realizes the method for microphone function, audio frequency playing method, equipment and system - Google Patents
Intelligent terminal realizes the method for microphone function, audio frequency playing method, equipment and system Download PDFInfo
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Abstract
The method that the present invention relates to the microphone function that a kind of intelligent terminal realizes suppressing uttering long and high-pitched sounds, including: intelligent terminal and multimedia equipment set up data cube computation；Real-time Collection near-end audio signal；Near-end audio signal is carried out chauvent's criterion process and obtains packets of audio data；Packets of audio data is sent to described multimedia equipment, multimedia equipment exports described packets of audio data.The present invention also provides for a kind of audio frequency playing method simultaneously, intelligent terminal realizes equipment and the system of microphone function, can be realized the function of mike by intelligent terminal such as more universal smart mobile phone, panel computers；There is chauvent's criterion function and digital effecter function simultaneously.
Description
Technical field
The present invention relates to multimedia technology field, particularly relate to a kind of intelligent terminal realize the method for mike, audio frequency playing method,
Equipment and system.
Background technology
Mike, formal name used at school is microphone, is the energy conversion device that acoustical signal is converted to the signal of telecommunication, is frequently used for some public
The sound reinforcement system of occasion or the song in some digital audio-video places input altogether.
Under the scenes such as the mike in existing digital audio-video place typically only has two, many people chorus, mike is the most not enough, this
Situation can bring great inconvenience to user.If realizing wheat by intelligent terminal such as more universal smart mobile phone, panel computers
The function of gram wind, can solve the problems referred to above.
The sound reinforcement system comprising mike especially often produces when indoor use and utters long and high-pitched sounds, and reason is after sound amplification is launched,
Launching directly or through barrier and indirectly picked up by mike, define echo, echo is again introduced into sound reinforcement system and is exaggerated,
If so forming positive feedback at some frequency, the most just create strong ear-piercing uttering long and high-pitched sounds.Echo can be divided into directly
Echo and indirect echo.Producing the basic reason uttered long and high-pitched sounds is echo.
Utter long and high-pitched sounds and destroy stablizing of sound reinforcement system, be the common problem making user headache.Seriously hidden original because uttering long and high-pitched sounds
Sound, public address effect do not knows where to begin, and severe patient can cause device damage.So the problem of uttering long and high-pitched sounds is in sound reinforcement system use
Major issue.
Using intelligent terminal to realize in the scene of wireless microphone in digital audio-video place, the use of sound-absorbing material makes indirect echo
Preferably eliminated, and the delay being wirelessly transferred due to software system and the data of intelligent terminal, cause so that direct echo significantly
Increasing, the problem uttered long and high-pitched sounds is more serious, and the hardware multiformity of intelligent terminal and the instability of wireless digital transmission cause this to ask
Topic becomes complex.Solve echo, to utter long and high-pitched sounds be the problem that can not get around of this application scenarios.
It is by remote signaling and true echo that acoustic echo eliminates the operation principle of (Acoustic Echo Canceller, AEC)
Dependency be modeled, and constantly revise filter parameter, make estimated value more approaching to reality echo, then echo is estimated
It is worth and rejects from the near end signal of mike pickup, thus reach to eliminate the purpose of echo.Remote signaling closer to true echo,
The work efficiency of AEC is the highest, and effect is the best.
Effect device is to provide the sound equipment periphery equipment of various sound field effect, is widely used in on-the-spot sound reinforcement system, for mike
The tone color of acoustical signal polished.Mike in digital audio-video place typically to play back after effect device processes again.
Intelligent terminal is used to realize in the scene of wireless microphone, if effect can be directly realized by intelligent terminal in digital audio-video place
Device function, avoids the need for, again by external effect device equipment, simplied system structure, making system be more easily performed.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, it is provided that one intelligent terminal in digital audio-video place realizes Mike
The method of wind, audio frequency playing method, equipment and system, can be by intelligent terminal such as more universal smart mobile phone, panel computers
Realize the function of mike；There is chauvent's criterion feature capability simultaneously.
In order to solve above-mentioned technical problem, the invention provides a kind of method that intelligent terminal realizes microphone function, including:
Intelligent terminal and multimedia equipment set up data cube computation；
Real-time Collection near-end audio signal；
Near-end audio signal is carried out chauvent's criterion process and obtains packets of audio data；
Packets of audio data is sent to described multimedia equipment, multimedia equipment exports described packets of audio data.
Further, described near-end audio signal is carried out chauvent's criterion process obtain packets of audio data, by packets of audio data send
To described multimedia equipment, multimedia equipment export described packets of audio data, including:
Receive the feedback information bag that described multimedia equipment sends, be reduced into the sound play with multimedia equipment according to feedback information bag
Frequency flows the far-end audio signal of time synchronized；
With far-end audio signal as reference, after echo processing that near-end audio signal work is disappeared, obtain packets of audio data；
Packets of audio data is sent to described multimedia equipment, multimedia equipment exports described packets of audio data and to intelligent terminal
Send feedback packet；
Wherein, described near-end audio signal refers to that the audio signal that intelligent terminal collects, described far-end audio signal refer to many matchmakers
The audio signal of body device plays.
Further, described near-end audio signal is carried out chauvent's criterion process after, then carry out audio effect processing and obtain packets of audio data.
Further, described in disappear echo processing, be to use NLMS algorithm and NLP algorithm, disappear in proximally audio signal
Except echo, to reach echo cancellor or chauvent's criterion.
Further, described intelligent terminal or multimedia equipment are more than one.
Correspondingly, present invention also offers a kind of audio frequency playing method, including:
Multimedia equipment receives the beginning message that described realization can suppress the intelligent terminal of the microphone function uttered long and high-pitched sounds, and prepares audio frequency number
Receive according to bag and play；
Receive the packets of audio data that the intelligent terminal of the microphone function that described realization can suppress to utter long and high-pitched sounds sends, export described audio frequency
Packet is to the audio stream play.
Further, the data message of the audio stream of broadcasting is converted into feedback information bag, and returns to described realization and can suppress to make a whistling sound
The intelligent terminal of the microphone function cried, carries out the far-end audio signal of chauvent's criterion process for being reduced into intelligent terminal；Described
Feedback information bag is Tong Bu with the data time of the audio stream of broadcasting.
Further, the described packets of audio data of described output, to currently playing audio stream, also includes: described realization can be suppressed
The audio signal that the described audio signal of intelligent terminal's transmission of the microphone function uttered long and high-pitched sounds is to be broadcast with this multimedia equipment is carried out
Stereo process obtains currently playing audio stream, plays described audio stream.
Further, described intelligent terminal or multimedia equipment are more than one.
Correspondingly, present invention also offers a kind of intelligent terminal, including:
Connection establishment module, intelligent terminal and multimedia equipment set up data cube computation；
Recording module, Real-time Collection near-end audio signal；
Receiver module, receives the feedback information bag that described multimedia equipment sends, is reduced into according to feedback information bag and sets with multimedia
The far-end audio signal of the standby audio stream time synchronized play；
Chauvent's criterion module, with far-end audio signal as reference, carries out chauvent's criterion process to near-end audio signal；
Audio effect processing module, after near-end audio signal is carried out chauvent's criterion process, then obtains voice data after carrying out audio effect processing
Bag；
Sending module, sends described packets of audio data to described multimedia equipment, described multimedia equipment exports described audio frequency
Packet also sends feedback packet to intelligent terminal.
Correspondingly, present invention also offers a kind of multimedia equipment, including:
Data transmission module, for suppressing the intelligent terminal of the microphone function uttered long and high-pitched sounds set up data cube computation and count with realization
According to transmission；
Playing module, during for receiving the voice data of intelligent terminal's transmission of the described microphone function that can suppress and utter long and high-pitched sounds, place
Reason playing audio data.
Further, described playing module includes:
Receive unit, for receiving the voice data that the intelligent terminal of the microphone function that described realization can suppress to utter long and high-pitched sounds sends；
Stereo process unit, for carrying out stereo process by the voice data that described reception unit receives with voice data to be broadcast
Audio stream to current output；
Output unit, for exporting described packets of audio data to the audio stream play；
Transmitting element, for the data message of the audio stream of broadcasting is converted into feedback information bag, and returns to described realization and can press down
The intelligent terminal of the microphone function that system is uttered long and high-pitched sounds, carries out the far-end audio signal of chauvent's criterion process for being reduced into intelligent terminal.
Correspondingly, one audio frequency broadcast system of the present invention, including:
At least one intelligent terminal and at least one multimedia equipment, wherein,
At least one intelligent terminal described, and described multimedia equipment sets up data cube computation, and by the voice signal collected through making a whistling sound
Send at least one multimedia equipment described after being suppression module and audio effect processing resume module；
At least one multimedia equipment described, for receiving the voice data that at least one intelligent terminal described sends, exports institute
State the packets of audio data audio stream to broadcasting, the data message of the audio stream of broadcasting is converted into feedback information bag, and returns to institute
State at least one intelligent terminal, carry out the far-end audio signal of chauvent's criterion process for being reduced into intelligent terminal.
It is an advantage of the current invention that:
Matched by intelligent terminal and multimedia equipment, can be the portable intelligent terminal such as smart mobile phone, panel computer
In realize microphone function, it is possible to avoid the inconvenience brought to user due to number of microphone deficiency in digital audio-video place, meet
The use demand of user；The chauvent's criterion function that it possesses so that occasion that this function is uttered long and high-pitched sounds at easy echogenicity is real
With practicality.The digital effecter function that it possesses, can realize multiple tone color polishing effect, it is not necessary to extras, and simplified system is tied
Structure, makes system be more easily performed.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that a kind of intelligent terminal of the embodiment of the present invention realizes the method for mike；
Fig. 2 is the schematic flow sheet of a kind of audio frequency playing method of the embodiment of the present invention；
Fig. 3 is the structural representation of a kind of intelligent terminal of the embodiment of the present invention；
Fig. 4 is the structural representation of a kind of multimedia equipment of the embodiment of the present invention；
Fig. 5 is the structural representation of a kind of audio frequency broadcast system of the embodiment of the present invention；
Fig. 6 is the schematic diagram of a kind of echo cancellor used of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely retouched
State, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
Refer to Fig. 1, be that a kind of intelligent terminal of the embodiment of the present invention realizes suppressing the flow process of the method for the mike uttered long and high-pitched sounds to show
It is intended to；
Described intelligent terminal in the embodiment of the present invention can be the equipment that mobile phone, panel computer etc. possess sound-recording function, and many matchmakers
Body equipment can be then that KTV jukebox, PC, intelligent TV set etc. possess the sound of the access function such as Wi-Fi, bluetooth and regard
Frequently player, the described method of the present embodiment includes:
S101: intelligent terminal and multimedia equipment set up data cube computation.Message is started particularly as follows: send to described multimedia equipment,
To notify that described multimedia equipment prepares to receive packets of audio data.
Intelligent terminal utilizes the access function such as Wi-Fi, bluetooth and multimedia equipment to set up data cube computation in described S101, intelligence
Terminal can select multiple multimedia equipment to set up data cube computation respectively simultaneously.In connection request simultaneously by set recording sample rate,
The information such as port number notify described multimedia equipment.
S102: Real-time Collection near-end audio signal.Particularly as follows: utilize the sound-recording function that described intelligent terminal carries, piecewise acquisition
Near-end audio signal.
Intelligent terminal utilizes built-in microphone to record in described S102, obtains sampling with queue mode segmentation
PCM (Pulse-codemodulation, pulse code modulation) data.Use PCM sampling, the data of the voice data obtained
Measure relatively small, it is possible to meet in the higher requirement of the performance real-time in digital audio-video place.
In the present invention, the digital audio-video place being previously mentioned can be that public K sings place, such as KTV, bar, nightclub etc.
Place；Can also is that the K song application under home environment.
S103: receive the feedback information bag that described multimedia equipment sends, be reduced into according to feedback information bag and broadcast with multimedia equipment
The far-end audio signal of the audio stream time synchronized put.
Intelligent terminal receives the feedback information bag that described multimedia equipment sends in described S103, therefrom parses voice data
Size, content, as the far-end audio signal of chauvent's criterion module.
S104: with far-end audio signal as reference, carries out chauvent's criterion process to near-end audio signal.
Intelligent terminal uses acoustic echo cancellation algorithm to process near-end audio data in described S104.
As shown in Figure 6, echo cancellor uses a sef-adapting filter to carry out analog echo passage, obtains echo estimated value r ' (n),
R (n) represents the sound that intelligent terminal picks up and (includes echo and the background noise of reality, it is also possible to comprise the language of near speaker
Tone signal), from r (n), deduct r ' (n), i.e. obtain the voice signal after removing echo.Main flow is:
1, far-end speech signal y (n) and near end signal x (n) are contrasted through speech detection unit, it is judged that current far and near two
The talk situation of end.
2, sef-adapting filter is using remote signaling y (n) as input, correspondingly processes according to the result of speech detection,
To echo estimated value r ' (n)；The process of wave filter is particularly as follows: working as speech detection is near-end audio signal, and filter coefficient is the most more
Newly, wave filter does not filters；When speech detection is far-end audio signal, filter coefficient update, filter filtering；When voice is examined
Surveying is both-end audio signal, and filter coefficient does not updates, filter filtering.
3, from r (n), deduct r ' (n), obtain the voice signal after removing echo.
4, finally result to previous step makees residual echo suppression.
Sef-adapting filter of the present invention uses NLMS algorithm, residual echo suppression to use NLP algorithm.
A kind of improvement based on tradition LMS algorithm of described NLMS algorithm, the difference of two kinds of algorithms is in LMS algorithm to use admittedly
Fixed step size, and NLMS algorithm have employed variable step-length, the convergence rate of wave filter can be accelerated.
Described NLP algorithm, is a kind of nonlinear processor, is used for reducing echo and processing nonlinear effect, covers self adaptation filter
The deficiency of ripple algorithm.
S105: after near-end audio signal is carried out chauvent's criterion process, then obtain packets of audio data after carrying out audio effect processing.
Intelligent terminal uses software algorithm to realize audio effect processing in described S105.Audio effect processing includes parametric equalization, reverberation, edge
The effects such as limit, chorus, the change of voice, modified tone, the change of voice is included in male voice, female voice, mutual phase transformation between old voice and child's voice.
By audio effect processing to increase the interest that user sings, and preferably enliven the atmosphere in digital audio-video place.
S106: packets of audio data is sent to described multimedia equipment, described multimedia equipment exports described packets of audio data also
Feedback packet is sent to intelligent terminal.
Described packets of audio data is sent to described multimedia equipment in described S106 by intelligent terminal, concrete, can directly send out
Send PCM data, it is also possible to select to compress described PCM data, more finally send the voice data after compression to described multimedia
Equipment, described multimedia equipment export described voice data after decompressing, reduce the data volume of transmission.
In the above-mentioned methods, described intelligent terminal or multimedia equipment can be more than one.
When intelligent terminal is multiple, the function of many people chorus, expanded body proved recipe formula can be realized.When intelligent terminal is multiple,
Multiple intelligent terminal's Real-time Collection near-end audio signals, each carry out chauvent's criterion and process the sound obtaining correspondence near-end audio signal
After frequency evidence, being the most all sent to multimedia equipment, multimedia equipment is play after being mixed by the multiple voice datas received,
And each intelligent terminal is sent feedback packet.
When multimedia equipment is multiple, arranging a main multimedia equipment, other are auxiliary multimedia equipment, its concrete mistake
Cheng Wei: intelligent terminal's Real-time Collection near-end audio signal；And near-end audio signal is carried out chauvent's criterion process obtain voice data
Bag；Packets of audio data is sent to each multimedia equipment, each multimedia equipment exports described packets of audio data.Due to
The digital audio-video place that some spaces are bigger, if only setting a multimedia equipment, audio frequency result of broadcast is limited, part number audiovisual
User in place can can't hear audio frequency.Arrange multiple multimedia equipment to play out simultaneously, strengthen result of broadcast, it is to avoid on
State the generation of situation.
Refer to Fig. 2 again, be the schematic flow sheet of a kind of audio frequency playing method of the embodiment of the present invention；The embodiment of the present invention is with many
Media device side joint receives the voice data of the intelligent terminal such as the mobile phone as mike and is processed to illustrate,
Concrete, the described method of the embodiment of the present invention includes:
S201: receive the beginning message of the intelligent terminal realizing microphone function, prepares packets of audio data and receives and play.
The described intelligent terminal realizing microphone function is i.e. with equipment such as the smart mobile phone of microphone function, panel computers.
Intelligent terminal data connection request is monitored and responded to multimedia equipment, sets up and connects, by the recording sample rate in connection request,
The information such as port number prepare to receive data, prepare audio mixing, broadcasting.
S202: receive the packets of audio data that the intelligent terminal of the microphone function that described realization can suppress to utter long and high-pitched sounds sends, export institute
State packets of audio data to currently playing audio stream.Described voice data is the intelligence that described realization can suppress the microphone function uttered long and high-pitched sounds
The voice signal collected is carried out the voice data being converted to by energy terminal.
Described voice data is first carried out stereo process to current output after receiving described voice data by described multimedia equipment
After audio stream, then export to the device such as power amplifier, speaker.
If the voice data that multimedia equipment receives is the voice data after compressing, the most described multimedia equipment first basis and intelligence
After described audio frequency apparatus is decompressed by the decompression mode of energy terminal coupling, then row output broadcasting.
S203: the data message of currently playing audio stream is converted into feedback information bag, and return to described realization and can suppress to make a whistling sound
The intelligent terminal of the microphone function cried, carries out the far-end audio signal of chauvent's criterion process for being reduced into intelligent terminal.
Described feedback information bag is Tong Bu with the audio stream that multimedia equipment is play.
Described feedback information bag, can be label information, it is also possible to be the voice data play；
If label information, then intelligent terminal is before sending voice data, need to mark voice data, such as suitable according to sending
Sequence, is labeled as 1,2,3..., and is packaged into packets of audio data, and voice data is joined queue after being sent by packets of audio data
In, when multimedia terminal receives packets of audio data, resolve the label information of this packet, and playing audio-fequency data, by labelling
Information sends back intelligent terminal as feedback information bag；When after intelligent terminal for reception to feedback information bag, synchronously obtain from queue
Taking the voice data of correspondence markings, the remote signaling as chauvent's criterion inputs.
If the voice data play, when after intelligent terminal for reception to feedback information bag, directly using this packet as chauvent's criterion
Remote signaling input.
Below a kind of intelligent terminal of the present invention, multimedia equipment, audio frequency broadcast system are described in detail.
Refer to Fig. 3, be the structural representation of a kind of intelligent terminal described in the embodiment of the present invention；The described intelligence of the present embodiment
Terminal can be the equipment such as mobile phone, panel computer, possesses the speech signal collection modules such as microphone, concrete, described intelligent terminal
Including:
Connection establishment module 11, sets up data cube computation for intelligent terminal with multimedia equipment；Particularly as follows: set to described multimedia
Preparation send beginning message, to notify that described multimedia equipment prepares to receive packets of audio data.
Recording module 12, for Real-time Collection near-end audio signal；Message is started particularly as follows: send to described multimedia equipment,
To notify that described multimedia equipment prepares to receive packets of audio data.
Receiver module 13, is same as receiving the feedback information bag that described multimedia equipment sends, is reduced into many according to feedback information bag
The far-end audio signal of the audio stream time synchronized that media device is play；
Chauvent's criterion module 14, for far-end audio signal as reference, carries out chauvent's criterion process to near-end audio signal；
Audio effect processing module 15, after being same as near-end audio signal is carried out chauvent's criterion process, then obtains sound after carrying out audio effect processing
Frequently packet；
Sending module 16, for sending described packets of audio data to described multimedia equipment, is exported institute by described multimedia equipment
State packets of audio data and send feedback packet to intelligent terminal.
Refer to Fig. 4 again, be the structural representation of a kind of multimedia equipment of the embodiment of the present invention；The embodiment of the present invention described
Multimedia equipment can be the audio and video playing such as KTV jukebox, PC, intelligent TV set, and it specifically may include that
Data transmission module 21, for setting up data cube computation with the intelligent terminal realizing microphone function and carrying out data transmission；
Playing module 22, during for receiving the voice data of described intelligent terminal transmission, processes and playing audio data.
Concrete, described playing module 22 may include that
Receive unit 221, for receiving the voice data that described intelligent terminal sends；
Stereo process unit 222, for carrying out the voice data that described reception unit receives with voice data to be broadcast
Stereo process is to the audio stream of current output；
Output unit 223, for exporting described packets of audio data to currently playing audio stream.
Transmitting element 224, for the data message of currently playing audio stream is converted into feedback information bag, and returns to described
Intelligent terminal.The far-end audio signal of chauvent's criterion process is carried out for being reduced into intelligent terminal.
Refer to Fig. 5 again, be the structural representation of a kind of audio frequency broadcast system of the embodiment of the present invention.The institute of the embodiment of the present invention
State audio frequency broadcast system and specifically can include at least one intelligent terminal, illustrate as a example by the intelligent terminal 100 in Fig. 5,
With at least one multimedia equipment, illustrate as a example by the multimedia equipment 200 in Fig. 5.
Described intelligent terminal 100, sets up the data cube computation of described multimedia equipment, and is converted to by the voice signal collected
Voice data, sends at least one multimedia equipment described after chauvent's criterion and digital effecter process；
When described multimedia equipment 200 receives the voice data that the described intelligent terminal realizing microphone function sends, process also
Export described voice data, i.e. export existing raising one's voice in equipment, and the data message of currently playing audio stream is converted into
Feedback information bag, and return to described intelligent terminal.The far-end audio letter of chauvent's criterion process is carried out for being reduced into intelligent terminal
Number number input.
Equipped with the intelligent terminal of above-mentioned Fig. 3 on described intelligent terminal 100, described multimedia equipment 200 is then Fig. 4 pair
The multimedia equipment answered.
Intelligent terminal 100 can connect one or more multimedia equipment.
Multimedia equipment 200 can connect one or more intelligent terminal.
Claims (13)
1. the method that an intelligent terminal realizes microphone function, it is characterised in that including:
Intelligent terminal and multimedia equipment set up data cube computation；
Real-time Collection near-end audio signal；
Near-end audio signal is carried out chauvent's criterion process and obtains packets of audio data；
Packets of audio data is sent to described multimedia equipment, multimedia equipment exports described packets of audio data.
2. the method for claim 1, it is characterised in that described near-end audio signal is carried out chauvent's criterion process obtain audio frequency
Packet, sends packets of audio data to described multimedia equipment, multimedia equipment exports described packets of audio data, including:
Receive the feedback information bag that described multimedia equipment sends, be reduced into the sound play with multimedia equipment according to feedback information bag
Frequency flows the far-end audio signal of time synchronized；
With far-end audio signal as reference, after echo processing that near-end audio signal work is disappeared, obtain packets of audio data；
Packets of audio data is sent to described multimedia equipment, multimedia equipment exports described packets of audio data and to intelligent terminal
Send feedback packet；
Described near-end audio signal refers to that the audio signal that intelligent terminal collects, described far-end audio signal refer to multimedia equipment
The audio signal play.
3. method as claimed in claim 1 or 2, it is characterised in that described near-end audio signal is carried out chauvent's criterion process after,
Carry out audio effect processing again and obtain packets of audio data.
4. method as claimed in claim 2, it is characterised in that described in disappear echo processing, be to use NLMS algorithm and NLP algorithm,
Echo is eliminated, to reach echo cancellor or chauvent's criterion in proximally audio signal.
5. the method as described in any one of claim 1-4, it is characterised in that described intelligent terminal or multimedia equipment are more than one.
6. an audio frequency playing method, it is characterised in that including:
Multimedia equipment receives the beginning message that described realization can suppress the intelligent terminal of the microphone function uttered long and high-pitched sounds, and prepares audio frequency number
Receive according to bag and play；
Receive the packets of audio data that the intelligent terminal of the microphone function that described realization can suppress to utter long and high-pitched sounds sends, export described audio frequency
Packet is to the audio stream play.
7. method as claimed in claim 6, it is characterised in that also include:
The data message of the audio stream of broadcasting is converted into feedback information bag, and returns to the mike that described realization can suppress to utter long and high-pitched sounds
The intelligent terminal of function, carries out the far-end audio signal of chauvent's criterion process for being reduced into intelligent terminal；Described feedback information bag
Tong Bu with the data time of the audio stream play.
8. method as claimed in claim 7, it is characterised in that the described packets of audio data of described output to currently playing audio stream,
Also include: the described described audio signal realizing suppressing the intelligent terminal of the microphone function uttered long and high-pitched sounds to transmit is set with this multimedia
Standby audio signal to be broadcast carries out stereo process and obtains currently playing audio stream, plays described audio stream.
9. the method as described in any one of claim 7-8, it is characterised in that described intelligent terminal or multimedia equipment are more than one.
10. an intelligent terminal, it is characterised in that including:
Connection establishment module, intelligent terminal and multimedia equipment set up data cube computation；
Recording module, Real-time Collection near-end audio signal；
Receiver module, receives the feedback information bag that described multimedia equipment sends, is reduced into according to feedback information bag and sets with multimedia
The far-end audio signal of the standby audio stream time synchronized play；
Chauvent's criterion module, with far-end audio signal as reference, carries out chauvent's criterion process to near-end audio signal；
Audio effect processing module, after near-end audio signal is carried out chauvent's criterion process, then obtains voice data after carrying out audio effect processing
Bag；
Sending module, sends described packets of audio data to described multimedia equipment, described multimedia equipment exports described audio frequency
Packet also sends feedback packet to intelligent terminal.
11. 1 kinds of multimedia equipments, it is characterised in that including:
Data transmission module, for suppressing the intelligent terminal of the microphone function uttered long and high-pitched sounds set up data cube computation and count with realization
According to transmission；
Playing module, during for receiving the voice data of intelligent terminal's transmission of the described microphone function that can suppress and utter long and high-pitched sounds, place
Reason playing audio data.
12. multimedia equipments as claimed in claim 11, it is characterised in that described playing module includes:
Receive unit, for receiving the voice data that the intelligent terminal of the microphone function that described realization can suppress to utter long and high-pitched sounds sends；
Stereo process unit, for carrying out stereo process by the voice data that described reception unit receives with voice data to be broadcast
Audio stream to current output；
Output unit, for exporting described packets of audio data to the audio stream play；
Transmitting element, for the data message of the audio stream of broadcasting is converted into feedback information bag, and returns to described realization and can press down
The intelligent terminal of the microphone function that system is uttered long and high-pitched sounds, carries out the far-end audio signal of chauvent's criterion process for being reduced into intelligent terminal.
13. 1 kinds of audio frequency broadcast systems, it is characterised in that including:
At least one intelligent terminal and at least one multimedia equipment, wherein,
At least one intelligent terminal described, and described multimedia equipment sets up data cube computation, and by the voice signal collected through making a whistling sound
Send at least one multimedia equipment described after being suppression module and audio effect processing resume module；
At least one multimedia equipment described, for receiving the voice data that at least one intelligent terminal described sends, exports institute
State the packets of audio data audio stream to broadcasting, the data message of the audio stream of broadcasting is converted into feedback information bag, and returns to institute
State at least one intelligent terminal, carry out the far-end audio signal of chauvent's criterion process for being reduced into intelligent terminal.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107040832A (en) * | 2017-04-22 | 2017-08-11 | 广州市比丽普电子有限公司 | A kind of handheld terminal formula microphone system based on Bluetooth technology |
| CN107205199A (en) * | 2017-06-16 | 2017-09-26 | 福建星网智慧科技股份有限公司 | The microphone array and its communication means of a kind of Android phone |
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| CN107040832A (en) * | 2017-04-22 | 2017-08-11 | 广州市比丽普电子有限公司 | A kind of handheld terminal formula microphone system based on Bluetooth technology |
| CN107205199A (en) * | 2017-06-16 | 2017-09-26 | 福建星网智慧科技股份有限公司 | The microphone array and its communication means of a kind of Android phone |
| WO2019084886A1 (en) * | 2017-11-03 | 2019-05-09 | 深圳传音通讯有限公司 | Audio denoising method and denoising device, mobile terminal and readable storage medium |
| CN107958671A (en) * | 2017-11-22 | 2018-04-24 | 广州市六体智能科技有限公司 | A kind of echo cancelling device of law-enforcing recorder |
| CN109640223A (en) * | 2019-02-22 | 2019-04-16 | 昆腾微电子股份有限公司 | A kind of chauvent's criterion method, apparatus, sound equipment and public address system |
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