CN208657007U - A kind of digital microphone - Google Patents
A kind of digital microphone Download PDFInfo
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- CN208657007U CN208657007U CN201821464090.XU CN201821464090U CN208657007U CN 208657007 U CN208657007 U CN 208657007U CN 201821464090 U CN201821464090 U CN 201821464090U CN 208657007 U CN208657007 U CN 208657007U
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Abstract
The utility model discloses a kind of digital microphone, which includes: sound acquisition module, channel switching circuit, control module and audio processing modules, wherein including that at least one is directed toward miaow and at least one omnidirectional's miaow in the sound acquisition module；The sound acquisition module collected sound signal, and the voice signal of acquisition is converted into analog audio signal；The channel switching circuit is connect with the sound acquisition module and the control module, the control signal sent for receiving the control module, and is switched over according to the control signal to the channel of the sound acquisition module；The audio processing modules are connect with the channel switching circuit, for handling the analog audio signal exported from the channel switching circuit, and the analog audio signal are converted into digital audio and video signals, are exported the digital audio and video signals.The utility model can convert different application models, to meet the needs of different application scene, have versatility.
Description
Technical field
The utility model relates to microphone technical field more particularly to a kind of digital microphones.
Background technique
Microphone is also known as microphone, is a kind of energy converter of acoustic-electric conversion, generates voltage on sound wave effect to electroacoustic component, real
Existing acoustic-electric conversion.Analog signal after traditional microphone converts the sound into is directly transferred to external equipment, such as upper mechanical, electrical brain
Deng, and analog signal is easy the interference by electromagnetic wave during transmission, so that the quality of analog signal is influenced, using screen
It is higher to cover signal wire progress transmission cost, and shielded signal line volume is larger, it has not been convenient to operate.Existing digit microphone quilt at present
Using digital microphone converts sound into voltage signal, and then is converted to digital signal by analog-to-digital conversion circuit, solves
During analog signal transmission the problem of easy electromagnetic wave interference.But a type of digital microphone can only meet a kind of field
The application of scape needs replacing a further type of digital microphone and is just able to satisfy different application if changing another application scenarios
Demand.
Utility model content
The utility model provides a kind of digital microphone, to meet the different demands of multiple scene applications, has versatility.
The utility model embodiment provides a kind of digital microphone, which includes:
Sound acquisition module, channel switching circuit, control module and audio processing modules, wherein the sound acquisition module
In include that at least one is directed toward miaow and at least one omnidirectional's miaow；
The sound acquisition module collected sound signal, and the voice signal of acquisition is converted into analog audio signal；
The channel switching circuit is connect with the sound acquisition module and the control module, for receiving the control
The control signal that module is sent, and switches over the channel of the sound acquisition module according to the control signal, and by institute
Analog audio signal is stated by the channel transfer of switching, to realize the conversion of different mode；
The audio processing modules are connect with the channel switching circuit, for exporting from the channel switching circuit
The analog audio signal is handled, and the analog audio signal is converted into digital audio and video signals, exports the number
Audio signal.
The utility model embodiment provides a kind of digital microphone, by sound acquisition module collected sound signal and converts
For analog audio signal, control module control channel switching circuit switches over the channel of sound collection signal, makes digital words
The conversion that cylinder realizes different mode is believed analogue audio frequency by audio processing modules with meeting the needs of different application scene
Number digital audio and video signals are converted to, the signal for transmitting digital microphone avoids the interference of electromagnetic wave, ensure that sound quality.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the digital microphone provided in the utility model embodiment one；
Fig. 2 a is a kind of structural schematic diagram of the digital microphone provided in the utility model embodiment two；
Fig. 2 b is the structural schematic diagram of another digital microphone provided in the utility model embodiment two；
Fig. 3 is a kind of structural schematic diagram of the digital microphone provided in the utility model embodiment three.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.In addition it should be noted that
, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is the structural schematic diagram of a kind of digital microphone provided in the utility model embodiment one, and the present embodiment can be with
Suitable for using the scene of microphone.As shown in Figure 1, the digital microphone specifically includes:
Sound acquisition module 10, channel switching circuit 20, control module 30 and audio processing modules 40, wherein sound collection
It include that at least one is directed toward miaow 101 and at least one omnidirectional's miaow 102 in module 10；
10 collected sound signal of sound acquisition module, and the voice signal of acquisition is converted into analog audio signal.
Further, it is directed toward the voice signal that the voice signal that miaow 101 acquires Partial angle is stronger, and other angles acquire
Intensity is weaker.Omnidirectional's miaow 102 can acquire the voice signal of any direction, and signal strength is consistent.It is directed toward miaow 101 and omnidirectional
Voice signal more comprehensiveization that the combination of miaow 102 acquires digital microphone, so that microphone realizes different modes.It is directed toward miaow
101 and omnidirectional's miaow 102 distinguish collected sound signal, make acquisition voice signal have diversification, to carry out mode conversion, meet
The demand of different application scene.
Further, the connection type of direction miaow 101 and omnidirectional's miaow 102, which can according to need, is configured, and optionally, refers to
It is longitudinally connected to miaow 101 and omnidirectional's miaow 102, and sound is adopted facing towards on the contrary, the sound for enabling microphone uniformly to acquire all directions
Signal.
Further, miaow 101 and omnidirectional's miaow 102 are directed toward using silica gel solid due on circuit board, silica gel has the more of opening
Pore structure, and there is elasticity, the noise of case vibration generation can be absorbed, keeps three received sound of microphone purer clear.
Silica gel is directly fixed on circuit board, easy to assembly, and manufacture craft is simple, reduces production cost.
Channel switching circuit 20 is connect with sound acquisition module 10 and control module 30, is sent for receiving control module 30
Control signal, and the channel of sound acquisition module 10 is switched over according to control signal, and analog audio signal is passed through
The channel transfer of switching, to realize the conversion of different mode.
Illustratively, user selects the mode of digital microphone, control module according to demand under different application scenarios
30 detect generation control signal after the operation that user is done, and send control signals to channel switching circuit 20, channel
Switching circuit 20 switches over the channel of sound acquisition module 10 according to the control signal received, and transmits sound collection mould
The analog audio signal that block 10 transmits.The different analog audio signal of different channel transfers, or different analog audio signals
Various combination, different analog audio signals be different microphones acquisition voice signal convert.Different channel transfers
Analog audio signal correspond to different application models, pass through switching channel realize digital microphone different application mode conversion.
Audio processing modules 40 are connect with channel switching circuit 20, for the analog audio exported from channel switching circuit 20
Frequency signal is handled, and analog audio signal is converted into digital audio and video signals, illustratively, passes through audio processing modules 40
Analog audio signal is amplified, analog audio signal is converted into digital audio and video signals, and export digital audio and video signals.
A kind of digital microphone is present embodiments provided, by sound acquisition module collected sound signal, and is converted to simulation
Audio signal, control module detects that the operation of user generates control signal, and sends control signals to channel switching circuit,
Channel switching circuit switches over the channel of sound acquisition module according to the control signal received, and transmits analogue audio frequency letter
Number to audio processing modules, analog audio signal is converted to digital audio and video signals by audio processing modules, and is transmitted to external set
It is standby.Digital microphone provided in this embodiment realizes the conversion of different mode by the switching in sound acquisition module channel, can
Meets the needs of different application scene.
Embodiment two
Fig. 2 a is the structural schematic diagram of a kind of digital microphone provided in the utility model embodiment two, and the present embodiment can be with
Suitable for using the scene of microphone.The present embodiment two advanced optimizes on the basis of example 1, wherein not in the present embodiment
In the content of detailed description be detailed in above-described embodiment.As shown in Figure 2 a, which specifically includes:
Sound acquisition module 10, channel switching circuit 20, control module 30 and audio processing modules 40, wherein sound collection
It include that at least one is directed toward miaow 101 and at least one omnidirectional's miaow 102 in module 10；
10 collected sound signal of sound acquisition module, and the voice signal of acquisition is converted into analog audio signal；
Channel switching circuit 20 is connect with sound acquisition module 10 and control module 30, is sent for receiving control module 30
Control signal, and the channel of sound acquisition module 10 is switched over according to control signal, and analog audio signal is passed through
The channel transfer of switching, to realize the conversion of different mode；
Audio processing modules 40 are connect with channel switching circuit 20, for the analog audio exported from channel switching circuit 20
Frequency signal is handled, and analog audio signal is converted into digital audio and video signals, exports digital audio and video signals.
Further, the channel for being directed toward miaow 101 is connected and connects left and right acoustic channels simultaneously by channel switching circuit 20, left at this time
Right channel sound effect is consistent, and digital microphone is in single player mode, uses for single, such as the application such as single performance, live streaming
Scene.The channel of omnidirectional's miaow 102 is connected and connects left and right acoustic channels simultaneously by channel switching circuit 20, and left and right acoustic channels sound is imitated at this time
Fruit is consistent, and digital microphone is in conference model, for application scenarios such as meetings.
Optionally, as shown in Figure 2 a, control module 30 includes microprocessor 301, and the electricity connecting with microprocessor 301
Position device 302, and microprocessor 301 is also connect with channel switching circuit 20；Potentiometer 302 controls analog audio signal channel and work
Make the switching of state.Illustratively, when microprocessor 301 detects the rotation of potentiometer 302 to first area, the first control is generated
Signal control channel switching circuit 20 connects the channel for being directed toward miaow 101；Microprocessor 301 detects the rotation of potentiometer 302 to the
When two regions, the channel that second control signal control channel switching circuit 20 connects omnidirectional's miaow 102 is generated；Microprocessor 301 is examined
When measuring the rotation of potentiometer 302 to third region, generates third control signal control audio processing modules 40 and stop working.Micro- place
It is another optional to manage device, as shown in Figure 2 b, control module 30 includes microprocessor 301, and the object connecting with microprocessor 301
Key 303 is managed, and microprocessor 301 is also connect with channel switching circuit 20；By key control analog audio signal channel and work
The switching of state.Illustratively, when microprocessor 301 detects the first time pressing operation in 303 a cycle of physical button,
It generates first control signal control channel switching circuit 20 and connects the channel for being directed toward miaow 101；Microprocessor 301 detects key one
When second of pressing operation in a period, generates second control signal control channel switching circuit 20 and connect omnidirectional's miaow 102
Channel；When microprocessor 301 detects the third time pressing operation in key a cycle, generates third control signal and control sound
Frequency processing module 40 stops working.Microprocessor present embodiments provides a kind of digital microphone, is acquired by sound acquisition module
Voice signal, and analog audio signal is converted to, sound acquisition module includes that at least one is directed toward miaow and at least one omnidirectional's miaow,
At least one is directed toward the setting of miaow and at least one omnidirectional's miaow, and the voice signal for receiving microphone is more diversified, can receive
The voice signal of all directions, channel switching circuit receive the control signal that control module is sent, according to control signal to sound
The channel of acquisition module switches over, and analog audio signal is transferred to audio processing modules, and audio processing modules handle mould
Intend audio signal and be converted into digital audio and video signals to export to external equipment.The digital microphone energy that the present embodiment passes through offer
Enough conversions for realizing more different mode, can be suitable for different application scenarios.
Embodiment three
Fig. 3 is the structural schematic diagram of a kind of digital microphone provided in the utility model embodiment three, and the present embodiment can be with
Suitable for using the scene of microphone.The present embodiment three advanced optimizes on the basis of the above embodiments, wherein not in this implementation
The content of detailed description is detailed in above-described embodiment in example.Such as Fig. 3, which is specifically included:
Sound acquisition module 10, channel switching circuit 20, control module 30 and audio processing modules 40, wherein sound collection
It include that at least one is directed toward miaow 101 and at least one omnidirectional's miaow 102 in module 10；
10 collected sound signal of sound acquisition module, and the voice signal of acquisition is converted into analog audio signal；
Channel switching circuit 20 is connect with sound acquisition module 10 and control module 30, is sent for receiving control module 30
Control signal, and the channel of sound acquisition module 10 is switched over according to control signal, and analog audio signal is passed through
The channel transfer of switching, to realize the conversion of different mode；
Audio processing modules 40 are connect with channel switching circuit 20, for the analog audio exported from channel switching circuit 20
Frequency signal is handled, and analog audio signal is converted into digital audio and video signals, exports digital audio and video signals.
Further, further includes: audio output module 50 is connect with audio processing modules 40, and analog audio signal is defeated
Out to external equipment, to realize that audio select, external equipment can be the audiomonitor with power amplifier, such as earphone, loudspeaker
Deng.
Further, further includes: indicating module 60 is connect with control module 30, and indicating module 60 includes indicator light, works as finger
When connecting to the channel of miaow 101, indicator light issues the instruction light of the first color；When the channel of omnidirectional's miaow 102 is connected, instruction
Lamp issues the instruction light of second of color；When audio processing modules 40 stop working, indicator light issues the finger of the third color
Show light.Illustratively, when microprocessor 301 generates first control signal, by it to channel switching circuit 20 and control channel
Switching circuit 20 connects the channel for being directed toward miaow 101, while first control signal is sent to indicating module 60, and indicating module 60 connects
It receives first control signal and control instructions lamp issues the instruction light of the first color, such as green light；When microprocessor 301 generates the
When two control signals, it is connected to the channel of omnidirectional's miaow 102 to channel switching circuit 20 and control channel switching circuit 20, simultaneously
Second control signal is sent to indicating module 60, and indicating module 60 receives second control signal and control instructions lamp issues second
The instruction light of kind color, such as feux rouges；When microprocessor 301 generates third control signal, by it to being sent to audio processing mould
Internal microprocessor 401 in block 40 simultaneously controls audio processing modules 40 and stops working, while third control signal is sent to finger
Show module 60, indicating module 60 receives third control signal and control instructions lamp issues the instruction light of the third color, such as yellow
Light.Pass through the working condition and mode that are set using family and can be intuitively known digital microphone of indicating module 60.
A kind of digital microphone is present embodiments provided, by sound acquisition module collected sound signal, and is converted to simulation
Audio signal, channel switching circuit receive the control signal that control module is sent, according to control signal to sound acquisition module
Channel switches over, and analog audio signal is transferred to audio processing modules, and audio processing modules handle analog audio signal
And be converted into digital audio and video signals and export to external equipment, it is supervised by the direct output that audio output module realizes audio
It listens, the working condition and mode that family is more intuitively known digital microphone can be used by indicating module.The present embodiment passes through
The digital microphone of offer can be realized the conversion of more different mode, can be suitable for different application scenarios, and be convenient for user
Observe the working condition and operating mode of digital microphone.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various obvious
Variation, readjustment and substitution without departing from the protection scope of the utility model.Therefore, although passing through above embodiments pair
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from this
It can also include more other equivalent embodiments in the case that utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determines.
Claims (10)
1. a kind of digital microphone characterized by comprising
Sound acquisition module, channel switching circuit, control module and audio processing modules, wherein being wrapped in the sound acquisition module
It includes at least one and is directed toward miaow and at least one omnidirectional's miaow；
The sound acquisition module collected sound signal, and the voice signal of acquisition is converted into analog audio signal；
The channel switching circuit is connect with the sound acquisition module and the control module, for receiving the control module
The control signal of transmission, and the channel of the sound acquisition module being switched over according to the control signal, and by the mould
Quasi- audio signal passes through the channel transfer of switching, to realize the conversion of different mode；
The audio processing modules are connect with the channel switching circuit, for from described in channel switching circuit output
Analog audio signal is handled, and the analog audio signal is converted into digital audio and video signals, exports the digital audio
Signal.
2. digital microphone according to claim 1, which is characterized in that the direction miaow and omnidirectional's miaow are longitudinally connected, and
Sound is adopted facing towards opposite.
3. digital microphone according to claim 1, which is characterized in that the direction miaow and omnidirectional's miaow are fixed using silica gel
In on circuit board.
4. digital microphone according to claim 1 to 3, which is characterized in that
The channel switching circuit controls the channel for being directed toward miaow and connects and connect left and right acoustic channels simultaneously, and microphone is made to be in one
Mode；
The channel that the channel switching circuit controls omnidirectional's miaow is connected and connects left and right acoustic channels simultaneously, and microphone is made to be in meeting
Mode.
5. digital microphone according to claim 1, which is characterized in that the control module includes microprocessor, and with institute
The potentiometer of microprocessor connection is stated, and the microprocessor is also connect with the channel switching circuit；
The switching in the potentiometer control analog audio signal channel and working condition.
6. digital microphone according to claim 5, which is characterized in that
When the microprocessor detects the potentiometer and rotates to first area, generates first control signal and control the channel and cut
It changes circuit and connects the channel for being directed toward miaow；
When the microprocessor detects the potentiometer and rotates to second area, generates second control signal and control the channel and cut
Change the channel that circuit connects omnidirectional's miaow；
When the microprocessor detects the potentiometer and rotates to third region, generates third control signal and control at the audio
Manage module from service.
7. digital microphone according to claim 5, which is characterized in that the control module includes microprocessor, and with institute
The physical button of microprocessor connection is stated, and the microprocessor is also connect with the channel switching circuit；
The switching by key control analog audio signal channel and working condition.
8. digital microphone according to claim 7, which is characterized in that
When the microprocessor detects the first time pressing operation in the physical button a cycle, first control signal is generated
It controls the channel switching circuit and connects the channel for being directed toward miaow；
When the microprocessor detects second of pressing operation in the key a cycle, second control signal control is generated
The channel switching circuit connects the channel of omnidirectional's miaow；
When the microprocessor detects the third time pressing operation in the key a cycle, third control signal control is generated
The audio processing modules stop working.
9. according to digital microphone described in claim 5-8 any one, which is characterized in that further include indicating module, with shown control
The connection of molding block, the indicating module includes indicator light, and when the channel for being directed toward miaow is connected, indicator light issues the first face
The instruction light of color；When the channel of omnidirectional's miaow is connected, indicator light issues the instruction light of second of color；At the audio
When managing module from service, indicator light issues the instruction light of the third color.
10. digital microphone according to claim 1, which is characterized in that further include audio output module, with the audio processing
Module connection, the audio processing modules are exported from the received audio analog signals of sound acquisition module to external equipment, with
Realize audio select.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464090.XU CN208657007U (en) | 2018-09-07 | 2018-09-07 | A kind of digital microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464090.XU CN208657007U (en) | 2018-09-07 | 2018-09-07 | A kind of digital microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208657007U true CN208657007U (en) | 2019-03-26 |
Family
ID=65792768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821464090.XU Active CN208657007U (en) | 2018-09-07 | 2018-09-07 | A kind of digital microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208657007U (en) |
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2018
- 2018-09-07 CN CN201821464090.XU patent/CN208657007U/en active Active
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