CN108933975A - Conference microphone - Google Patents
Conference microphone Download PDFInfo
- Publication number
- CN108933975A CN108933975A CN201811162609.3A CN201811162609A CN108933975A CN 108933975 A CN108933975 A CN 108933975A CN 201811162609 A CN201811162609 A CN 201811162609A CN 108933975 A CN108933975 A CN 108933975A
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- China
- Prior art keywords
- module
- network
- dsp control
- analog switch
- conference
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- 230000005236 sound signal Effects 0.000 claims abstract description 13
- 230000008054 signal transmission Effects 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000004891 communication Methods 0.000 abstract description 7
- 230000004044 response Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Telephonic Communication Services (AREA)
Abstract
The present invention provides a kind of conference microphones, including audio collection module, analog switch module, wireless module, DSP control module and network module, DSP control module couples analog switch module, wireless module couples analog switch module and DSP control module, network module couples DSP control module and analog switch module, when network signal is normal, the collected audio signal of audio collection module is transmitted to by wired mode by conference host by DSP control module；When network signal exception, the network signal control analog switch module that response to network module generates carries out signal transmission form switching, and collected audio signal is wirelessly transmitted to conference host by wireless module.Realize transmission mode switching by analog switch module and the hardware module of network module, CPU can be avoided passing through and carry out the logic judgment occupied response time, can the undelayed switching for realizing wired and wireless two kinds of transmission modes, improve communication quality.
Description
Technical field
The present invention relates to conference microphone technical field, in particular to a kind of conference microphone.
Background technique
Into after 21 century, as the rapid development and people of digital technology are constantly mentioned to what conference system sound quality required
Height, conference system also enter digital times comprehensively, and fully digital conference system comes into being.The core of fully digital conference system
Technology is multi-channel digital audio transmission technology, it uses " analog/digital " transformation technology, directly by the voice of the spokesman picked up
It is converted into digital signal, then will be transmitted on cable after digital signal encoding, and according to the bandwidth condition of transmission cable
Corresponding multiplexing technology is used to realize the simultaneous transmission multipath audio signal on single line cable.
(such as desktop intelligence is eventually by microphone, power amplifier, sound equipment and desktop display for one most basic conference system
End, liquid crystal display) composition, they play the role of transaudient, display, public address, achieve the effect that see, can listen, can speak.
Wherein, as core component, directly affect a whole set of conference system can achieve the effect that microphone.Under normal circumstances, microphone uses
Wired mode is communicated with conference host holding, and communication quality is influenced by network signal.At this point, occur on the market while having
There is the microphone of wired and wireless two kinds of communication modes, after it acquires network signal by microphone core CPU, is exported through logic judgment
Switching signal realizes the switching of wired and wireless mode.Although the wired and wireless two kinds of sides of microphone may be implemented in such mode
Formula is communicated with conference host holding, but since the logic judgment of core CPU needs certain time, microphone and meeting master
Machine communicates the interruption that will appear certain time, and communication is led to problems such as noise occur, interrupt.
Summary of the invention
The present invention provides a kind of conference microphone, solves the problems, such as existing above-mentioned.
To solve the above problems, the embodiment of the present invention provides a kind of conference microphone, including audio collection module, analog switch
Module, wireless module, DSP control module and network module, the audio collection module acquire audio signal, the DSP control
Analog switch module described in module couples processed, the wireless module couple the analog switch module and the DSP control module,
The network module couples the DSP control module and the analog switch module, when network signal is normal, passes through the DSP
Collected audio signal is transmitted to conference host by wired mode by control module；When network signal is abnormal, described in response
The network signal that network module generates controls the analog switch module and carries out signal transmission form switching, passes through the wireless mould
Collected audio signal is wirelessly transmitted to conference host by block.
As an implementation, the analog switch module uses TS3A27518E.
As an implementation, the network module uses LAN8720A.
As an implementation, further include display module, couple the DSP control module, shown for LCD.
As an implementation, further include key module, the DSP control mould is coupled, for realizing human-computer interaction.
It as an implementation, further include battery charging module and voltage output module, in the conference microphone
Modules power supply.
As an implementation, further include voltage detection module, couple the DSP control module, control mould for DSP
The voltage detecting of block.
It as an implementation, further include POE by electric module, coupled scheme module supplies electricity to institute for bearing network
Modules in conference microphone are stated to power.
The beneficial effect of the present invention compared with the prior art is: passing through the hardware mould of analog switch module and network module
Block realizes the wired and wireless signal transmission form switching of audio signal, can avoid passing through the core CPU in DSP control module
Carry out the logic judgment occupied response time, can the undelayed switching for realizing wired and wireless two kinds of transmission modes, mention
High communication quality.
Detailed description of the invention
Fig. 1 is the module connection figure of conference microphone of the invention；
Fig. 2 is the circuit diagram of audio collection module of the invention；
Fig. 3 is the circuit diagram of analog switch module of the invention；
Fig. 4 is the circuit diagram of DSP control module of the invention；
Fig. 5 is the circuit diagram of wireless module of the invention；
Fig. 6 is the circuit diagram of network module of the invention.
Attached drawing mark: 1, audio collection module；2, analog switch module；3, DSP control module；4, wireless module；5, net
Network module；6, display module；7, key module；8, voltage output module；9, POE is by electric module.
Specific embodiment
Below in conjunction with attached drawing, the technical characteristic and advantage above-mentioned and other to the present invention are clearly and completely described,
Obviously, described embodiment is only section Example of the invention, rather than whole embodiments.
As shown in Figure 1, a kind of conference microphone, including audio collection module 1, analog switch module 2, wireless module 4, DSP
Control module 3 and network module 5, audio collection module 1 acquire audio signal, and DSP control module 3 couples analog switch module
2, wireless module 4 couples analog switch module 2 and DSP control module 3, and network module 5 couples DSP control module 3 and simulation is opened
Close module 2.
Audio collection module 1 is collected audio signal under normal circumstances, by DSP control module 3 with wired side by network
Formula is transmitted to conference host.When Network Abnormal, network module 5 generates the network signal of characterization Network Abnormal, then by the net
Network signal feeds back to analog switch module 2, and analog switch module 2 responds the network signal and carries out channel switching, by original DSP
The transmission of control module 3 is converted to wireless module 4 and transmits, and after handover success, the collected audio signal of audio collection module 1 is direct
Conference host is transmitted to by wireless module 4.Audio letter is realized by analog switch module 2 and the hardware module of network module 5
Number wired and wireless signal transmission form switching, can avoid passing through in DSP control module 3 core CPU (and the present invention
There is no processing chips in middle DSP control module 3) the logic judgment occupied response time is carried out, it undelayed can realize
The switching of wired and wireless two kinds of transmission modes improves communication quality.
As figures 2-6, in the present embodiment, audio collection module 1 uses WM8918 chip, and analog switch module 2 is adopted
With TS3A27518E chip, network module 5 uses LAN8720A chip, and DSP control module 3 is jumped by two HEADER 30*2
Wire bonding disk composition.Analog switch module 2 the 6th, 7,9,10,12 pins be respectively coupled to audio collection module 1 the 8th, 7,9,11,
10 pins, the 2nd pin of the SPEED-LED coupled scheme module 5 of the 24th pin, the 1st, 19,21,22, the coupling of 23 pins is wireless
Module 4 the 13rd, 12,15,16,14 pins, the 13rd, 15,16,17,18 pins coupling DSP control module 3 the 33rd, 35,31,
37,39 pin, wherein the SPEED-LED of the 24th pin is the network signal for characterizing network state.
In addition to above-mentioned module, conference microphone of the invention further include display module 6, key module 7, battery charging module and
Voltage output module 8, voltage detection module and POE are coupled DSP control module 3 by electric module 9, display module 6, are used for LCD
Display；Key module 7 couples DSP and controls mould, for realizing human-computer interaction；Battery charging module and voltage output module 8 are used for
Modules are powered in conference microphone.Voltage detection module couples DSP control module 3, and the voltage for DSP control module 3 is examined
It surveys.POE supplies electricity to modules power supply in conference microphone by electric 9 coupled scheme module 5 of module, for bearing network.
The present invention realizes the wired and wireless of audio signal by analog switch module 2 and the hardware module of network module 5
Signal transmission form switching, the core CPU that can be avoided passing through in DSP control module 3 carry out the occupied response of logic judgment
Time, can the undelayed switching for realizing wired and wireless two kinds of transmission modes, improve communication quality.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of conference microphone, which is characterized in that including audio collection module, analog switch module, wireless module, DSP control
Module and network module, the audio collection module acquire audio signal, and the DSP control module couples the analog switch
Module, the wireless module couple the analog switch module and the DSP control module, described in the network module coupling
DSP control module and the analog switch module, when network signal is normal, by the DSP control module by collected sound
Frequency signal is transmitted to conference host by wired mode；When network signal exception, the network letter that the network module generates is responded
Number control analog switch module carries out signal transmission form switching, by the wireless module by collected audio signal
Wirelessly it is transmitted to conference host.
2. conference microphone according to claim 1, which is characterized in that the analog switch module uses TS3A27518E.
3. conference microphone according to claim 1, which is characterized in that the network module uses LAN8720A.
4. conference microphone according to claim 1, which is characterized in that further include display module, couple the DSP control mould
Block is shown for LCD.
5. conference microphone according to claim 1, which is characterized in that further include key module, couple the DSP control
Mould, for realizing human-computer interaction.
6. conference microphone according to claim 1, which is characterized in that further include battery charging module and voltage output mould
Block, for modules power supply in the conference microphone.
7. conference microphone according to claim 1, which is characterized in that further include voltage detection module, couple the DSP control
Molding block, the voltage detecting for DSP control module.
8. conference microphone according to claim 1, which is characterized in that it further include POE by electric module, coupled scheme module,
Modules power supply in the conference microphone is supplied electricity to for bearing network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162609.3A CN108933975A (en) | 2018-09-30 | 2018-09-30 | Conference microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162609.3A CN108933975A (en) | 2018-09-30 | 2018-09-30 | Conference microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108933975A true CN108933975A (en) | 2018-12-04 |
Family
ID=64444198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811162609.3A Pending CN108933975A (en) | 2018-09-30 | 2018-09-30 | Conference microphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115396069A (en) * | 2022-10-25 | 2022-11-25 | 广州市保伦电子有限公司 | Audio processing method and system for wired and wireless networking conference system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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