CN207410510U - A kind of pick up facility and system - Google Patents
A kind of pick up facility and system Download PDFInfo
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- CN207410510U CN207410510U CN201721122964.9U CN201721122964U CN207410510U CN 207410510 U CN207410510 U CN 207410510U CN 201721122964 U CN201721122964 U CN 201721122964U CN 207410510 U CN207410510 U CN 207410510U
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Abstract
The utility model discloses a kind of pick up facility and system, wherein, pick up facility includes wireless receiving demodulation module, microphone, array audio preprocessing module, audio processing modules and the control module of default quantity.First voice data of the wireless pick up facility transmission outside the reception of wireless receiving demodulation module, and the first voice data is transmitted to audio processing modules；For acoustic information and output in microphone pick current environment to array audio preprocessing module, array audio preprocessing module for second audio data and exports acoustic information system to audio processing modules；Control module controls audio processing modules to synthesize the first voice data and second audio data audio mixing according to audio mixing export ratio.Pickup system includes pick up facility and the wireless pick up facility with pick up facility communication connection.It realizes while gathers the sound in current environment and the sound of the user of wireless pick up facility, pickup effect is good, and system structure is simple, easy for installation, and wiring is few, at low cost.
Description
Technical field
The utility model belongs to Technology of Audio Collection field more particularly to a kind of pick up facility and system.
Background technology
At present, the pickup system of teaching recorded broadcast is the one or more microphones of lifting on indoor ceiling is taught mostly
It realizes, need to be separately installed per road microphone, audio is inputted after processing to recorded broadcast equipment.The microphone of lifting is apart from teacher and
Raw the voice signal of pickup is weaker, and ambient noise is also picked simultaneously farther out, and audio needs to carry out noise reduction, gain promotion etc.
Input recorded broadcast equipment after processing, however during handling, the sound of most important teachers' instruction can also be affected, tonequality
Decline.This pickup system installation is complicated, and wiring is more, and fits up more demanding, construction cost to indoor acoustics design
It is high.If this pickup system is applied in the normality teaching recorded broadcast in all classrooms, due to the usually not special sound of classroom
Finishing is learned, pickup effect can be reduced further.
In conclusion the problem of existing in the prior art that pickup effect is poor, system structure is complicated and be of high cost.
Utility model content
In view of this, the utility model embodiment provides a kind of pick up facility and system, to solve to deposit in the prior art
Pickup effect is poor, system structure is complicated and of high cost the problem of.
The first aspect of the utility model embodiment provides a kind of pick up facility, including wireless receiving demodulation module, in advance
If the microphone of quantity, array audio preprocessing module, audio processing modules and control module.
Microphone is connected with array audio preprocessing module, audio processing modules respectively with array audio preprocessing module,
Wireless receiving demodulation module is connected with control module.
Wireless receiving demodulation module receives the first voice data that external wireless pick up facility transmits, and by the first audio
Data transmission is to audio processing modules；Acoustic information and output to array audio in microphone pick current environment pre-processes mould
Block, array audio preprocessing module for second audio data and export acoustic information system to audio processing modules；Control mould
Block output audio mixing controls to adjust signal to audio processing modules, and audio processing modules control to adjust signal according to audio mixing and determine audio mixing
Export ratio, and according to audio mixing export ratio by the first voice data and second audio data audio mixing synthesis after data export to
Sound pick-up outfit.
In one embodiment, pick up facility further includes audio frequency power amplifier module.
Audio frequency power amplifier module is connected respectively with wireless receiving demodulation module and control module.
Audio frequency power amplifier module receives the first voice data, control module output work amplification gain Regulate signal to audio frequency power amplifier mould
Block, audio frequency power amplifier module determine gain-adjusted ratio according to power amplifier gain-adjusted signal, and according to gain-adjusted ratio by first
Voice data amplification is exported to sound amplifier.
In one embodiment, control module controls to adjust unit, power amplifier gain adjustment unit and communication including audio mixing and connects
Mouth unit.
Audio mixing controls to adjust first output terminal of the output terminal of unit as control module, is connected with audio processing modules；
Second output terminal of the output terminal of power amplifier gain adjustment unit as control module, is connected with audio frequency power amplifier module；Communication interface
Input terminal of the input terminal of unit as control module is connected with external control device, the first output of communications interface unit
The input terminal for controlling to adjust unit with audio mixing is held to be connected, second output terminal and the power amplifier gain adjustment unit of communications interface unit
Input terminal connects.
External control device sends a control signal to communications interface unit, and communications interface unit is distinguished according to control signal
Audio mixing is controlled to control to adjust, and unit output audio mixing controls to adjust signal and power amplifier gain adjustment unit output work amplification gain is adjusted
Signal.
In one embodiment, array audio preprocessing module includes array audio formation unit, and array audio forms list
Member determines Sounnd source direction according to the volume of acoustic information, conducting and the connection of the microphone on Sounnd source direction, disconnect and its
The connection of his microphone；Alternatively, array audio forms unit according to Sounnd source direction, by the microphone combination of default quantity be with
The microphone array of directionality.
In one embodiment, array audio preprocessing module further includes the AD conversion unit of default quantity and noise reduction list
Member.
The input terminal of AD conversion unit be array audio preprocessing module input terminal, the output terminal of AD conversion unit
The input terminal that unit is formed with array audio is connected, and array audio forms the output terminal of unit and the input terminal of noise reduction unit connects
It connects, the output terminal of noise reduction unit is the output terminal of array audio preprocessing module.
In one embodiment, audio processing modules include downmixing unit, and the first input end of downmixing unit is with wirelessly connecing
The output terminal connection of demodulation module is received, the control signal of downmixing unit and the first output terminal of control module connect.
Downmixing unit controls to adjust signal according to audio mixing and determines volume threshold and attenuation；When the volume of the first voice data
During more than or equal to volume threshold, downmixing unit according to attenuation attenuation second audio data volume, and by the first audio number
According to the second audio data after attenuation audio file is synthesized according to audio mixing export ratio.
In one embodiment, audio processing modules further include echo cancellation unit and well-balanced adjustment unit.
The first input end of echo cancellation unit is connected with the output terminal of wireless receiving demodulation module；Echo cancellation unit
Second input terminal is connected with the output terminal of array audio preprocessing module；The output terminal of echo cancellation unit and well-balanced adjustment unit
Input terminal connection；The output terminal of well-balanced adjustment unit and the second input terminal of downmixing unit connect, the output terminal of downmixing unit
For the output terminal of audio processing modules.
Echo cancellation unit receives the first voice data and second audio data respectively, and with reference to the first voice data to the
Two voice datas carry out echo cancellor, and the second audio data after echo cancellor is exported to well-balanced adjustment unit.
In one embodiment, wireless receiving demodulation module includes rf receiver unit or infrared receiver.
In one embodiment, pick up facility further includes main casing.
Microphone, array audio preprocessing module, audio processing modules, audio frequency power amplifier module and the control mould of default quantity
Block is arranged at the inside of the main casing, and the inside top of main casing is provided with to accommodate the appearance of wireless receiving demodulation module
Portion is put, the microphone for presetting quantity is arranged in the inside top of main casing along the periphery of holding part, and the top of main casing is along accommodating
The periphery in portion is equipped with the ring network for entrant sound corresponding with microphone position.
The second aspect of the utility model embodiment provides a kind of pickup system, including pick up facility as described above,
Further include the wireless pick up facility with pick up facility communication connection.
Existing advantageous effect is the utility model embodiment compared with prior art：It is connect by wireless receiving demodulation module
First voice data of the wireless pick up facility transmission outside receiving, and the first voice data is transmitted to audio processing modules；It passes
Acoustic information in sound device acquisition current environment is simultaneously exported to array audio preprocessing module, and array audio preprocessing module is by sound
Sound information processing is second audio data and exports to audio processing modules；Control module output audio mixing controls to adjust signal to sound
Frequency processing module, audio processing modules control to adjust signal according to audio mixing and determine audio mixing export ratio, and export ratio according to audio mixing
Example exports the data after the first voice data and the synthesis of second audio data audio mixing to sound pick-up outfit；First voice data is simultaneously
Output to audio frequency power amplifier module is exported after carrying out power amplification to sound amplifier.It realizes while gathers the sound in current environment
With the sound of the user of wireless pick up facility, pickup effect is good, and system structure is simple, easy for installation, and wiring is few, at low cost.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing is briefly described needed in description, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of modular structure schematic diagram for pick up facility that embodiment 1 provides；
Fig. 2 is a kind of modular structure schematic diagram for pick up facility that embodiment 2 provides；
Fig. 3 is a kind of mechanical structure schematic diagram of pick up facility；
Fig. 4 is the bottom view of Fig. 3.
In figure：1st, main casing；2nd, ring network；3rd, curved surface circular cowling；4th, raised shell；5th, engraved structure；6th, interface board.
Specific embodiment
Purpose of utility model, feature, advantage to enable the utility model is more apparent and understandable, below will knot
The attached drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described,
Obviously, the embodiments described below are only the utility model part of the embodiment, and not all embodiment.Based on this reality
With the embodiment in new, those of ordinary skill in the art are obtained all other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Term " first ", " second " and " the 3rd " in the specification and claims of the utility model and above-mentioned attached drawing
Etc. being for distinguishing different objects, not for description particular order.
The realization of the utility model is described in detail below in conjunction with specific attached drawing：
Embodiment 1：
Fig. 1 shows a kind of structure for pick up facility 100 that one embodiment of the utility model is provided, for the ease of saying
It is bright, illustrate only with the relevant part of the utility model embodiment, details are as follows：
As shown in Figure 1, a kind of pick up facility 100 that the utility model embodiment is provided, including wireless receiving solution mode transfer
Microphone 120, array audio preprocessing module 130, audio processing modules 140 and the control module 150 of block 110, default quantity.
Microphone 120 is connected with array audio preprocessing module 130, and audio processing modules 140 are pre- with array audio respectively
Processing module 130, wireless receiving demodulation module 110 and control module 150 connect.
Wireless receiving demodulation module 110 receives the first voice data of external wireless pick up facility transmission, and by first
Voice data is transmitted to audio processing modules 140；Microphone 120 gathers the acoustic information in current environment and exports to array sound
Frequency preprocessing module 130, array audio preprocessing module 130 for second audio data and export acoustic information system to audio
Processing module 140；Control module 150 exports audio mixing and controls to adjust signal to audio processing modules 140, audio processing modules 140
Signal is controlled to adjust according to audio mixing and determines audio mixing export ratio, and according to audio mixing export ratio by the first voice data and the second sound
Data after frequency is synthesized according to audio mixing are exported to sound pick-up outfit.
In the present embodiment, acoustic information is analog signals, and the first voice data and second audio data are digital quantity
Signal.
In one embodiment, microphone 120 includes microphone, microphone and/or microphone.
In one embodiment, it is 2 or 2 or more to preset quantity.
For example, the microphone 120 of default quantity can include 4 that gather 4 direction (east, south, west, north) sound
Microphone 120 or 8 microphones for using 8 (east, the southeast, south, southwest, west, northwest, north, northeast) direction sound
120。
In the present embodiment, multiple microphones 120 are integrated in a pick up facility 100, form microphone array.Microphone
Array can gather the sound in multiple directions, can also realize directive property by the control of array audio preprocessing module 130
Ground switching wherein some or certain several microphones 120 work, other microphones 120 do not work, so as to gather some or
Sound on certain several direction.Array audio preprocessing module 130 can also use microphone array technology to carry out pickup processing.
The present embodiment integrates multiple microphones 120, convenient for centralized Control, can also reduce pick up facility 100 and other
Wiring between equipment reduces the complexity of equipment installation.
In one embodiment, the input terminal of wireless receiving demodulation module 110 is communicated to connect with wireless pick up facility, transaudient
The output terminal of device 120 is connected with the input terminal of array audio preprocessing module 130, the input terminal difference of audio processing modules 140
It is connected with the output terminal of array audio preprocessing module 130 and the output terminal of wireless receiving demodulation module 110, control module 150
The first output terminal be connected with the control signal of audio processing modules 140, the output terminal of audio processing modules 140 with outside
Sound pick-up outfit communication connection.
In one embodiment, pick up facility 100 is connected with external public address equipment and sound pick-up outfit by cable respectively.
Realize the function that the functional harmony sound for the broadcasting that amplifies is recorded.
In one embodiment, wireless pick up facility includes portable microphone and wireless signal sending module.
For portable microphone for gathering the first acoustic information, wireless signal sending module receives portable microphone
The first acoustic information system for the first voice data, and be sent to wireless receiving demodulation module 110.
In one embodiment, the portable microphone that wireless pick up facility uses includes portable microphone, microphone
And/or microphone.
In the present embodiment, portable microphone can follow user to move, and can individually gather the sound of user, carry
The high clarity of pickup.When user is speaker, the speech content of speaker can be picked up by portable microphone pick
Sound equipment 100 gathers the sound in indoor environment, such as listens the talk of speaker and speaker's interaction, can so distinguish speaker
Sound in the sound and indoor environment of people, so as to prominent main sound, weak secondary sound obtains the audio of high quality
Data.
It in a particular application, can using wireless communication between wireless signal sending module and wireless receiving demodulation module 110
To reduce wiring, moved convenient for portable microphone.Wireless signal sending module is for the first voice data of transmitting, wireless receiving
Demodulation module 110 is used to receive and demodulate the first voice data.
In the present embodiment, wireless receiving demodulation module 110 is carried out wireless communication with external wireless pick up facility, is received
First voice data of external wireless pick up facility transmission, and the first voice data is transmitted to audio processing modules 140.
In the present embodiment, communicated by wireless receiving demodulation module 110 with external wireless pick up facility, it can be with
Individually acquisition uses the sound of the user of wireless pick up facility, and is handled, and reduces the interference of sound in ambient enviroment,
Better pickup effect can be obtained.
In the present embodiment, multiple microphones 120 gather the acoustic information in current environment and export pre- to array audio
The acoustic information system of multichannel is the second audio data of multichannel and defeated by processing module 130, array audio preprocessing module 130
Go out to audio processing modules 140.
In the present embodiment, external control device sends a control signal to control module 150,150 basis of control module
Control signal output audio mixing controls to adjust signal to audio processing modules 140, and audio processing modules 140 are controlled to adjust according to audio mixing
Signal determines audio mixing export ratio, and will be after the first voice data and the synthesis of second audio data audio mixing according to audio mixing export ratio
Data export to sound pick-up outfit；There are following special outputs：1) during audio mixing export ratio infinity, first via audio is only exported
Data；2) during audio mixing export ratio infinitesimal, the second road voice data is only exported.
As shown in Figure 1, in one embodiment of the utility model, pick up facility 100 further includes audio frequency power amplifier module
160。
Audio frequency power amplifier module 160 is connected respectively with wireless receiving demodulation module 110 and control module 150.
Audio frequency power amplifier module 160 receives the first voice data, 150 output work amplification gain Regulate signal of control module to audio
Power amplifier module 160, audio frequency power amplifier module 160 determine gain-adjusted ratio according to power amplifier gain-adjusted signal, and according to gain tune
Section ratio exports the amplification of the first voice data to sound amplifier.
In order to make it easy to understand, being illustrated by taking a concrete application scene as an example to the utility model embodiment, it is described in detail such as
Under.
In teaching recorded broadcast application, pick up facility 100 is lifted on the indoor ceiling of religion, and indoor sound is taught for gathering
Sound.Wireless pick up facility is worn on teacher, is exclusively used in the sound of acquisition teachers' instruction.Wireless pick up facility pickup teacher's
Acoustic information post processing is the first voice data, then, the first voice data is sent to the wireless receiving in pick up facility 100
Demodulation module 110.Microphone 120 in pick up facility 100 picks up the acoustic information in student and classroom, locates in advance by array audio
Reason module 130 is converted to second audio data after handling.Pick up facility 100 carries out the first voice data and second audio data
Unified output after audio mixing.
The function that pickup in teaching recorded broadcast can be completed in a set of pick up facility 100 is installed in classroom.Pick up facility 1,000
Take student and classroom sound.Wireless pick up facility is worn on teacher, such as wireless microphone, is exclusively used in receiving teachers' instruction
Sound, handy to carry about, teacher, which arbitrarily walks about, can keep pickup stable distance, can be always ensured that teacher's sound of pickup
Sound is clear.Meanwhile pick up facility 100 can also be by the audio data transmitting of teacher to public address equipment, so as to fulfill teaching public address.
The present embodiment can fully reduce the interactive teaching and learning in classroom, and device structure is simple, install convenient, cost-effective.
Embodiment 2：
Fig. 2 shows the modular structure for the pick up facility 100 that another embodiment of the utility model is provided, for the ease of saying
It is bright, illustrate only with the relevant part of the utility model embodiment, details are as follows：
As shown in Fig. 2, in one embodiment of the utility model, the control module 150 in Fig. 1 includes audio mixing control and adjusts
Save unit 151, power amplifier gain adjustment unit 152 and communications interface unit 153.
Audio mixing controls to adjust first output terminal of the output terminal of unit 151 as control module 150, with audio processing modules
140 connections；Second output terminal of the output terminal of power amplifier gain adjustment unit 152 as control module 150, with audio frequency power amplifier module
160 connections；Input terminal of the input terminal of communications interface unit 153 as control module 150 is connected with external control device,
The input terminal that first output terminal of communications interface unit 153 controls to adjust unit 151 with audio mixing is connected, communications interface unit 153
Second output terminal be connected with the input terminal of power amplifier gain adjustment unit 152.
External control device sends a control signal to communications interface unit 153, and communications interface unit 153 is believed according to control
Audio mixing is controlled to control to adjust unit 151 number respectively and exports that audio mixing controls to adjust signal and power amplifier gain adjustment unit 152 exports
Power amplifier gain-adjusted signal.
In one embodiment, communications interface unit 153 includes network interface, USB interface, serial line interface and/or parallel
Interface.
In the present embodiment, control device can be user terminal, such as computer, industrial personal computer and mobile phone etc., control device
Control to pick up facility 100 is realized by control module 150, can realize that audio mixing controls to adjust the control with power amplifier gain-adjusted
System.Control device is controlled to adjust by audio mixing, controls the attenuation after whether starting attenuation and startup attenuation to the second tunnel audio
Amount, and the audio mixing ratio of the first voice data and second audio data is adjusted, so as to adjust the output to sound pick-up outfit
Data.Control device adjusts the output to the volume of sound amplifier by controlling power amplifier gain.
As shown in Fig. 2, in one embodiment of the utility model, the array audio preprocessing module 130 in Fig. 1 includes
Array audio forms unit 132, and array audio forms unit 132 and determines Sounnd source direction according to the volume of acoustic information, conducting with
The connection of microphone 120 on Sounnd source direction disconnects the connection with other microphones 120；Alternatively, array audio forms list
The microphone 120 of default quantity is combined as with directive microphone array by member 132 according to Sounnd source direction.
In the present embodiment, using microphone array technology, it can be received using multiple microphones between the phase of sound wave
Difference sound wave is filtered, environmental background sound can be filtered to greatest extent, only the remaining sound wave needed.For noisy
In the environment of use this configuration equipment, hearer can be made to sound apparent.
In one embodiment, referring to Fig. 2, array audio, which forms unit 132, includes multi-channel gating switch.
In the present embodiment, array audio forms unit 132 and determines Sounnd source direction according to the volume of acoustic information.It gives great volume
Acoustic information is needs the information gathered, i.e., the needs of microphone 120 on source direction turn on, and array audio is formed
Unit 132 turns on these microphones 120, so as to receive the acoustic information of its acquisition.The small acoustic information of volume is that need not adopt
The information of collection, i.e., other needs of microphone 120 disconnect, and array audio forms unit 132 and disconnects.This implementation
Example realizes the directive property switching of microphone 120, can be automatically switched to according to the audio direction of volume maximum in current environment
Microphone 120 in respective direction, for example, in teaching recorded broadcast application, what pick up facility 100 can make a speech according to student
The directive property switching of microphone 120 is realized in orientation, so as to obtain clearer sound, further improves the effect of pickup.
As shown in Fig. 2, in one embodiment of the utility model, the array audio preprocessing module 130 in Fig. 1 is also wrapped
Include the AD conversion unit 131 of default quantity and noise reduction unit 133.
The input terminal of AD conversion unit 131 be array audio preprocessing module 130 input terminal, AD conversion unit
The input terminal that 131 output terminal forms unit 132 with array audio is connected, and array audio forms the output terminal and drop of unit 132
It makes an uproar the input terminal connection of unit 133, the output terminal of noise reduction unit 133 is the output terminal of array audio preprocessing module 130.
In a particular application, the input terminal of AD conversion unit 131 is connected with the output terminal of microphone 120.The mould of multichannel
Number converting unit 131 and the microphone 120 of multichannel connect one to one, and an AD conversion unit 131 and a microphone connect
It connects.The acoustic information for the analog quantity that AD conversion unit 131 gathers microphone 120 is transformed to digital quantity by analog-to-digital conversion
Second audio data.
In a particular application, array audio formed unit 132 can realize with all the way or the AD conversion unit of multichannel
131 are switched on or off, so realize with all the way or the microphone of multichannel 120 is switched on or off.
In a particular application, the output terminal of noise reduction unit 133 is connected with audio processing modules 140.Noise reduction unit 133 is by
Two voice datas are exported after carrying out noise reduction process to audio processing modules 140.
In the present embodiment, inhibited by analog-to-digital conversion and noise reduction and echo, realize the processing to second audio data, dropped
The low influence of noise further improves the effect of pickup.
By taking a concrete application scene as an example, in teaching recorded broadcast application, pick up facility 100 gathers the sound in student and classroom
Sound, it is distant due to student and pick up facility 100, student's speech had both been contained in the sound that microphone 120 receives
Direct sound wave, and the indoor reflected sound of religion is contained, sound quality is poor, and therefore, it is necessary to increase by noise reduction, elimination echo and promotion
It is exported again after the processing such as benefit.
As shown in Fig. 2, in one embodiment of the utility model, the audio processing modules 140 in Fig. 1 include audio mixing list
Member 143, the first input end of downmixing unit 143 is connected with the output terminal of wireless receiving demodulation module 110, downmixing unit 143
Control signal is connected with the first output terminal of control module 150.
Downmixing unit 143 controls to adjust signal according to audio mixing and determines volume threshold and attenuation；When the first voice data
When volume is greater than or equal to volume threshold, downmixing unit 143 according to attenuation attenuation second audio data volume, and by first
Second audio data after voice data and attenuation synthesizes audio file according to audio mixing export ratio.
In the present embodiment, the audio mixing in control module 150 controls to adjust unit 151 and exports audio mixing control and regulation signal extremely
Downmixing unit 143 in audio processing modules 140.
In one embodiment, when the volume of the first voice data is greater than or equal to predetermined threshold value, downmixing unit 143 declines
Subtract the volume of second audio data so that the default decibels of volume attenuation of second audio data decay to volume and are
Zero.
In one embodiment, when the volume of the first voice data is greater than or equal to predetermined threshold value, downmixing unit 143 declines
Subtract the volume of second audio data, and according to the time sequencing that voice data obtains by second after the first voice data and attenuation
Voice data synthesizes audio file according to audio mixing export ratio.
In a particular application, pick up facility 100 both can independently export the first audio according to different audio mixing export ratios
Data (audio mixing export ratio infinitely great) or second audio data (audio mixing export ratio is infinitely small), can also audio mixing output,
It is exported again after first voice data and second audio data are synthesized audio file.
In the present embodiment, when the meeting or exceeding given threshold of the first voice data of wireless pick up facility acquisition, decline
Subtract the volume of the second audio data of the acquisition of pick up facility 100, the first voice data can be clearly distinguished, so as to prominent master
The sound wanted lowers interference caused by sound in environment.
By taking a concrete application scene as an example, in teaching recorded broadcast application, indoor sound is taught in the acquisition of pick up facility 100,
The sound of wireless pick up facility acquisition teachers' instruction, when teacher's speech is given lessons, the indoor sound of religion collected of suitably decaying,
So that the clear sound of teachers' instruction understands in output audio, it is easy to differentiate, and can be good at reducing real classroom interaction.
In addition, the present embodiment can also be realized, when wireless pick up facility exports clearly teachers' instruction sound, pick up facility is reduced
The teachers' instruction sound included in 100 ambient sounds got, avoids that there are phase difference, signals to prolong because of two-way audio signal
When etc. factors influence the effect of pickup, to ensure the sound of final reduction clearly teachers' instruction.
As shown in Fig. 2, in one embodiment of the utility model, the audio processing modules 140 in Fig. 1 further include echo
Eliminate unit 141 and well-balanced adjustment unit 142.
The first input end of echo cancellation unit 141 is connected with the output terminal of wireless receiving demodulation module 110；Echo cancellor
Second input terminal of unit 141 is connected with the output terminal of array audio preprocessing module 130；The output of echo cancellation unit 141
End is connected with the input terminal of well-balanced adjustment unit 142；The second of the output terminal of well-balanced adjustment unit 142 and downmixing unit 143 is defeated
Enter end connection, the output terminal of downmixing unit 143 is the output terminal of audio processing modules 140.
Echo cancellation unit 141 receives the first voice data and second audio data respectively, and with reference to the first voice data
Echo cancellor is carried out to second audio data, and the second audio data after echo cancellor is exported to well-balanced adjustment unit 142.
In the present embodiment, echo cancellation unit 141 can eliminate the interference of echo, and well-balanced adjustment unit 142 can make sound
Frequency evidence reaches better tonequality.
In one embodiment of the utility model, wireless receiving demodulation module 110 includes rf receiver unit or infrared
Receiving unit.
In this implementation, wireless receiving demodulation module 110 with wireless pick up facility for communicating, so as to receive the first sound
Frequency evidence.Wireless receiving demodulation module 110 is demodulated data according to default communication protocol, additionally it is possible to amplify sound and filter
Except noise.
In one embodiment of the utility model, audio frequency process 140 further includes to store the first audio-frequency information and the
The storage unit of two audio-frequency informations.
Embodiment 3：
Fig. 3 and Fig. 4 shows the mechanical structure for the pick up facility 100 that one embodiment of the utility model is provided, in order to just
In explanation, illustrate only with the relevant part of the utility model embodiment, details are as follows：
As shown in Figure 3 and Figure 4, in one embodiment of the utility model, pick up facility 100 as above further includes main casing
Body 1.
Microphone 120, array audio preprocessing module 130, audio processing modules 140, the audio frequency power amplifier mould of default quantity
Block 160 and control module 150 are arranged at the inside of main casing 1, and the inside top of main casing 1 is provided with to accommodate and wirelessly connect
The holding part of demodulation module 110 is received, the microphone 120 for presetting quantity is arranged in the inside top of main casing 1 along the periphery of holding part
Cloth, the top of main casing 1 are equipped with the ring network 2 for entrant sound corresponding with 120 position of microphone along the periphery of holding part.
It should be noted that direction as shown in Figure 3, the bottom of main casing 1 is upper, and the top of main casing 1 is under.
In one embodiment, as shown in figure 4, the top of main casing 1 includes curved surface circular cowling 3, ring network 2 and raised shell
4, the outside of curved surface circular cowling 3 is connected with the side wall top of main casing 1, and the inside and the outside of ring network 2 of curved surface circular cowling 3 connect
It connects, the inside of ring network 2 is connected with the bottom of raised shell 4.
In one embodiment, ring network 2 be net structure, such as metal mesh etc..
In the present embodiment, raised shell 4 is hemispherical, and hollow structure forms holding part.Ring network 2 is planar structure
Metal mesh.Curved surface circular cowling 3 is outwardly.
In the present embodiment, the microphone 120 of default quantity is located at the inside top of main casing 1, is arranged along the periphery of raised shell 4
Cloth, in Fig. 4,120 position of microphone be ring network 2 cover position, the radio reception portion (such as microphone) of microphone 120
Towards ring network 2.
The radio reception portion of microphone 120 is set downward, sound is received by ring network 2, in order to which pick up facility 100 is suspended on
During indoor ceiling, the sound that bottom direction transmits is gathered.
In one embodiment, the shape of the side wall of main casing 1 is cylinder, rectangular column or polygon column.
In one embodiment, the side wall of main casing 1 includes engraved structure 5.Engraved structure 5 is included by several sets of vias
Into through-hole array, can be metal mesh, for radiating.
As shown in figure 3, in one embodiment of the utility model, the side wall of main casing 1 is equipped with to install communication
The interface board 6 of interface unit 153.
In one embodiment, the pilot hole lifted is additionally provided on bottom case.
Embodiment 4：
The utility model embodiment additionally provides a kind of pickup system, including pick up facility 100 as described above, further includes
With the wireless pick up facility of pick up facility communication connection.
The above, above example are only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to previous embodiment, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the utility model technical solution
Spirit and scope.
Claims (10)
1. a kind of pick up facility, which is characterized in that microphone, array audio including wireless receiving demodulation module, default quantity
Preprocessing module, audio processing modules and control module；
The microphone is connected with the array audio preprocessing module, the audio processing modules respectively with the array audio
Preprocessing module, the wireless receiving demodulation module are connected with the control module；
The wireless receiving demodulation module receives the first voice data that external wireless pick up facility transmits, and by the first audio
Data transmission is to the audio processing modules；Acoustic information in the microphone pick current environment is simultaneously exported to the array
Audio preprocessing module, the array audio preprocessing module for second audio data and export the acoustic information system extremely
The audio processing modules；The control module output audio mixing controls to adjust signal to the audio processing modules, the audio
Processing module controls to adjust signal according to the audio mixing and determines audio mixing export ratio, and according to the audio mixing export ratio by described in
Data after first voice data and second audio data audio mixing synthesis are exported to sound pick-up outfit.
2. pick up facility as described in claim 1, which is characterized in that the pick up facility further includes audio frequency power amplifier module；
The audio frequency power amplifier module is connected respectively with the wireless receiving demodulation module and the control module；
The audio frequency power amplifier module receives first voice data, the control module output work amplification gain Regulate signal to institute
Audio frequency power amplifier module is stated, the audio frequency power amplifier module determines gain-adjusted ratio according to the power amplifier gain-adjusted signal, and presses
First voice data amplification is exported to sound amplifier according to the gain-adjusted ratio.
3. pick up facility as claimed in claim 2, which is characterized in that the control module include audio mixing control to adjust unit,
Power amplifier gain adjustment unit and communications interface unit；
The audio mixing controls to adjust first output terminal of the output terminal of unit as the control module, with the audio frequency process mould
Block connects；Second output terminal of the output terminal of the power amplifier gain adjustment unit as the control module, with the audio work(
Amplification module connects；Input terminal of the input terminal of the communications interface unit as the control module, with external control device
Connection, the first output terminal of the communications interface unit are connected with the input terminal of audio mixing control and regulation unit, the communication
The second output terminal of interface unit is connected with the input terminal of the power amplifier gain adjustment unit；
The control device of the outside sends a control signal to the communications interface unit, and the communications interface unit is according to
Control signal controls the audio mixing to control to adjust unit and exports the audio mixing control and regulation signal and the power amplifier gain respectively
Adjustment unit exports the power amplifier gain-adjusted signal.
4. pick up facility as claimed in claim 1 or 2, which is characterized in that the array audio preprocessing module includes array
Audio forms unit, and the array audio forms unit and determines Sounnd source direction, conducting and place according to the volume of the acoustic information
In the connection of the microphone on the Sounnd source direction, the connection with other microphones is disconnected；Alternatively, the array sound
Frequency forms unit according to the Sounnd source direction, is with directive microphone array by the microphone combination of the default quantity
Row.
5. pick up facility as claimed in claim 4, which is characterized in that the array audio preprocessing module further includes present count
The AD conversion unit and noise reduction unit of amount；
The input terminal of the AD conversion unit be the array audio preprocessing module input terminal, the AD conversion unit
Output terminal and the array audio form the input terminal of unit and be connected, the output terminal of the array audio formation unit with it is described
The input terminal connection of noise reduction unit, the output terminal of the noise reduction unit are the output terminal of the array audio preprocessing module.
6. pick up facility as claimed in claim 1 or 2, which is characterized in that the audio processing modules include downmixing unit, institute
The first input end for stating downmixing unit is connected with the output terminal of the wireless receiving demodulation module, and the control of the downmixing unit is defeated
Enter end to be connected with the first output terminal of the control module；
The downmixing unit controls to adjust signal according to the audio mixing and determines volume threshold and attenuation；When the first audio number
According to volume be greater than or equal to the volume threshold when, the downmixing unit is decayed the second audio number according to the attenuation
According to volume, and by first voice data and attenuation after the second audio data closed according to the audio mixing export ratio
As audio file.
7. pick up facility as claimed in claim 6, which is characterized in that the audio processing modules further include echo cancellation unit
With well-balanced adjustment unit；
The first input end of the echo cancellation unit is connected with the output terminal of the wireless receiving demodulation module；The echo disappears
Except the second input terminal of unit is connected with the output terminal of the array audio preprocessing module；The output of the echo cancellation unit
End is connected with the input terminal of the well-balanced adjustment unit；The output terminal of the well-balanced adjustment unit and the second of the downmixing unit
Input terminal connects, and the output terminal of the downmixing unit is the output terminal of the audio processing modules；
The echo cancellation unit receives first voice data and the second audio data respectively, and with reference to described first
Voice data to the second audio data carry out echo cancellor, and by the second audio data after echo cancellor export to
The well-balanced adjustment unit.
8. pick up facility as claimed in claim 1 or 2, which is characterized in that the wireless receiving demodulation module connects including radio frequency
Receive unit or infrared receiver.
9. pick up facility as claimed in claim 2, which is characterized in that further include main casing；
The microphone of the default quantity, the array audio preprocessing module, the audio processing modules, the audio frequency power amplifier
Module and the control module are arranged at the inside of the main casing, and the inside top of the main casing is provided with to accommodate
The holding part of the wireless receiving demodulation module, the microphone of the default quantity is described in the inside top edge of the main casing
The periphery arrangement of holding part, the top of the main casing are equipped with corresponding with the microphone position along the periphery of the holding part
For the ring network of entrant sound.
10. a kind of pickup system, which is characterized in that including pick up facility as described in any one of claim 1 to 9, further include
With the wireless pick up facility of pick up facility communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721122964.9U CN207410510U (en) | 2017-09-01 | 2017-09-01 | A kind of pick up facility and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721122964.9U CN207410510U (en) | 2017-09-01 | 2017-09-01 | A kind of pick up facility and system |
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| Publication Number | Publication Date |
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| CN207410510U true CN207410510U (en) | 2018-05-25 |
Family
ID=62323366
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721122964.9U Active CN207410510U (en) | 2017-09-01 | 2017-09-01 | A kind of pick up facility and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110326309A (en) * | 2017-09-01 | 2019-10-11 | 深圳市台电实业有限公司 | A kind of pick up facility and system |
| CN112911461A (en) * | 2021-01-29 | 2021-06-04 | 广州泰声电子有限公司 | High-fidelity control method and system for sound box system for stage performance |
| CN112911482A (en) * | 2021-03-15 | 2021-06-04 | 世邦通信股份有限公司 | System and method for automatically adjusting sound amplification area and area volume |
| CN113377329A (en) * | 2021-07-01 | 2021-09-10 | 安徽文香科技有限公司 | Virtual audio equipment, audio data processing method and device |
| CN113726966A (en) * | 2021-07-28 | 2021-11-30 | 台湾立讯精密有限公司 | Communication terminal, communication system and audio information processing method |
-
2017
- 2017-09-01 CN CN201721122964.9U patent/CN207410510U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110326309A (en) * | 2017-09-01 | 2019-10-11 | 深圳市台电实业有限公司 | A kind of pick up facility and system |
| CN110326309B (en) * | 2017-09-01 | 2021-04-09 | 深圳市台电实业有限公司 | Pickup equipment and system |
| CN112911461A (en) * | 2021-01-29 | 2021-06-04 | 广州泰声电子有限公司 | High-fidelity control method and system for sound box system for stage performance |
| CN112911482A (en) * | 2021-03-15 | 2021-06-04 | 世邦通信股份有限公司 | System and method for automatically adjusting sound amplification area and area volume |
| CN112911482B (en) * | 2021-03-15 | 2023-03-24 | 世邦通信股份有限公司 | System and method for automatically adjusting sound amplification area and area volume |
| CN113377329A (en) * | 2021-07-01 | 2021-09-10 | 安徽文香科技有限公司 | Virtual audio equipment, audio data processing method and device |
| CN113377329B (en) * | 2021-07-01 | 2024-04-26 | 安徽文香科技股份有限公司 | Virtual audio equipment, audio data processing method and device |
| CN113726966A (en) * | 2021-07-28 | 2021-11-30 | 台湾立讯精密有限公司 | Communication terminal, communication system and audio information processing method |
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