CN106804019B - Sound system with microphone and power amplifier work state display function - Google Patents
Sound system with microphone and power amplifier work state display function Download PDFInfo
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- CN106804019B CN106804019B CN201710172626.4A CN201710172626A CN106804019B CN 106804019 B CN106804019 B CN 106804019B CN 201710172626 A CN201710172626 A CN 201710172626A CN 106804019 B CN106804019 B CN 106804019B
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- 238000012545 processing Methods 0.000 claims abstract description 48
- 230000005236 sound signal Effects 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 2
- 230000026683 transduction Effects 0.000 claims 1
- 238000010361 transduction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Classifications
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
The invention discloses a kind of sound system with microphone and power amplifier work state display function, microphone are equipped with superaudio signal generating circuit, electroacoustic transducer, pickup device and pickup signal processing circuit；It is equipped with signal distribution circuit, filter amplification circuit, microphone channel on-off display circuit, channel signal processing circuit and Comprehensive Signal Processing circuit, Comprehensive Signal Processing circuit in sound console to be also electrically connected with power amplifier, power amplifier is electrically connected with speaker circuit；Filter and amplification rectification circuit is also provided in sound console and the channel gain amplifier display circuit that amplifies simultaneously, filter and amplification rectification circuit is electrically connected with speaker circuit.The present invention is by microphone to sound console, the status display of sound console to power amplifier, the entire channel of speaker comes out, show this system the channel status between microphone and sound console in real time can continual, power amplifier, speaker on off operating mode and volume can also be shown, improve the reliability used.
Description
Technical field
The present invention relates to stereo set technical fields, more particularly to one kind to have microphone and power amplifier work state display function
Sound system.
Background technique
Sound system device is that especially have in industries such as education, business, amusement, exhibitions using most media devices
Be widely applied.
Sound system mainly includes microphone, sound console, power amplifier and speaker etc., and the sound system used now often occurs one
A problem: starting speech using the people of microphone, and discovery microphone can not send out sound, influence the quality of items on the program, waste time,
Such case occur is the thing that tuner most worries, but this performance accident is difficult to avoid, and is exactly to do preparations more again in advance
Work, still has such case.
The noiseless common cause of microphone is: power switch closing or silence switch pass using the people of microphone microphone
It closes, the connector contact of microphone line is bad, and microphone battery is out of power, and power amplifier is not opened, although opening, sound console
Total volume switch open too low, situations such as connection of power amplifier to speaker goes wrong.Although tuner can do before start
Good sufficient debugging efforts, but personnel are various, are pressed for time in an activity, and many people are not familiar with the user of microphone
The reasons such as method, failure are difficult to avoid.
Tuner usually inputs a voice signal at microphone end, then listens speaker to have again when testing microphone
There is no sound output, but be impossible to test in this way after program starts, tuner can not detect microphone and lead sound console
Whether whole flow process is normal, so if microphone power amplifier etc. goes wrong, and can not find, just will appear in time after program starts
The case where microphone and music do not go out sound, influence to amplify is normally carried out, and wastes the time, affects effect, makes sometimes
At irretrievable loss.
Summary of the invention
In view of the above deficiencies, the technical problems to be solved by the present invention are: providing a kind of with microphone and power amplifier work shape
The sound system of state display function, the system have the real-time continual function shown of microphone channel on off operating mode
Can, also there is the function of showing power amplification sound box on off operating mode and volume.
In order to solve the above technical problems, the technical scheme is that
A kind of sound system with microphone and power amplifier work state display function, including microphone, sound console, power amplifier and sound
Case, the speaker is interior to be equipped with the speaker circuit being electrically connected with the power amplifier, and the speaker being electrically connected with the speaker circuit is raised
Sound device,
Equipped with superaudio signal generating circuit, the electroacoustic being electrically connected with the superaudio signal generating circuit in the microphone
At energy converter, the pickup device being placed near the electroacoustic transducer, and the pickup signal that is electrically connected with the pickup device
Manage circuit；The superaudio signal that the superaudio signal generating circuit generates is converted into superaudio sound by the electroacoustic transducer
Signal, the pickup device have picked up normal voice signal and superaudio voice signal simultaneously, and the pickup device output is super
The signal that audio signal and audio signal mix gives the pickup signal processing circuit；
The signal distribution circuit being electrically connected with the pickup signal processing circuit is equipped in the sound console, and respectively with
The filter amplification circuit and channel signal processing circuit of the signal distribution circuit electrical connection；It is additionally provided in the sound console and institute
State filter amplification circuit electrical connection microphone channel on-off display circuit, the synthesis that is electrically connected with the channel signal processing circuit
Signal processing circuit, the Comprehensive Signal Processing circuit are also electrically connected with the power amplifier；
After the signal distribution circuit has received the mixed signal after the pickup signal processing circuit processes, it will mix
It closes signal and is divided into two-way, input the filter amplification circuit all the way, the filter amplification circuit will be after mixed signal filter and amplification
Remaining superaudio signal inputs the microphone channel on-off display circuit, and the microphone channel on-off display circuit is according to Supersonic
The presence or absence of frequency signal shows the on off operating mode of microphone channel；Another way inputs the channel signal processing circuit, the channel letter
Number processing circuit inputs the Comprehensive Signal Processing circuit after handling mixed signal, the Comprehensive Signal Processing circuit will mix
Signal is exported to the power amplifier；
The filter and amplification rectification circuit of electrical connection is additionally provided in the sound console and the channel gain amplifier display circuit that amplifies,
The filter and amplification rectification circuit is electrically connected with the speaker circuit output end, and the filter and amplification rectification circuit obtains the sound
After the mixed signal of case circuit, audio signal parts are filtered out, by superaudio signal rectification, obtained direct current signal is transferred to institute
The channel gain amplifier display circuit that amplifies is stated to go to show.
Preferred embodiment be further include microphone coding display module, microphone coding display module includes being placed in microphone
Interior microphone encodes generative circuit, and the microphone coded strings row output electricity being electrically connected respectively with microphone coding generative circuit
Road and microphone encode display circuit, and the first modulation circuit being electrically connected with microphone coding serial output circuit, described
First modulation circuit is serially connected between the superaudio signal generating circuit and the electroacoustic transducer；The microphone coding display
Module further includes being placed in the first demodulator circuit being electrically connected in sound console with the filter amplification circuit, with first demodulation
The sound console microphone of circuit electrical connection encodes display circuit；The microphone coding generative circuit generates encoded signal, encoded signal
It is transferred to the microphone coding serial output circuit and microphone coding display circuit respectively, the microphone encodes display circuit
Show that encoded signal is generated serial code, surpassed with described by the microphone coding received, the microphone coding serial output circuit
The superaudio signal that audio signal generative circuit generates inputs first modulation circuit together, and first modulation circuit will be compiled
Code signal is modulated on superaudio signal, and the modulated signal of generation inputs the electroacoustic transducer, and the electroacoustic transducer will be adjusted
Signal processed is converted into superaudio voice signal, is picked up to form mixing letter simultaneously by pickup device together with external voice signal
Number, mixed signal is input to the pickup signal processing circuit, and the pickup signal processing circuit passes after handling mixed signal
It is defeated by the signal distribution circuit being located in sound console, signal is divided into two-way by the signal distribution circuit, wherein defeated all the way
Enter to the filter amplification circuit, the filter amplification circuit is filtered amplification to mixed signal, filters audio signal, remaining
Supersonic frequency modulation be input to first demodulator circuit, first demodulator circuit is demodulated from Supersonic frequency modulation
Microphone encoded signal out, microphone encoded signal are input to the sound console microphone coding display circuit and are shown.
Preferred embodiment be further include microphone on state authentication module, the microphone on state authentication module includes setting
The wireless receiving circuit being sequentially connected electrically, the second demodulator circuit in the microphone compare detection circuit and microphone channel is led
The microphone coding generative circuit electricity of logical status display circuit, the relatively detection circuit and microphone coding display module
Connection；The microphone on state authentication module further includes the reading microphone coding being sequentially connected electrically being located in the sound console
Parallel series output circuit, the second modulation circuit and radio transmitter, the reading microphone coding parallel series output circuit and institute
The electrical connection of the first modulation circuit is stated, the radio transmitter is connect with the wireless receiving circuit wireless telecommunications；It is located at tuning
The microphone coding parallel series output circuit that reads circuits sequentially in each microphone channel read in the sound console in platform
The encoded signal that first demodulator circuit demodulates, and each encoded signal is sequentially input into second modulation in a serial fashion
Each encoded signal is modulated into radiofrequency signal and inputs the radio transmitter, the nothing by circuit, second modulation circuit
Line transmit circuit sends radiofrequency signal；It is located at the wireless receiving circuit in microphone and receives the radio transmitter hair
The radiofrequency signal penetrated, and radiofrequency signal is inputted into second demodulator circuit, second demodulator circuit demodulates radiofrequency signal,
And the encoded signal input relatively detection circuit for obtaining demodulation, the relatively detection circuit will from the second demodulator circuit and
The encoded signal that the microphone coding generative circuit transmission comes is compared, and Continuity signal is transmitted if encoded signal is consistent to institute
State the display conducting of microphone channel on state display circuit；If cannot be detected by certain time be consistent coding if transmit and do not lead
Messenger gives the microphone channel on state display circuit, and the microphone channel on state display circuit, which is shown, to be not turned on.
Preferred embodiment is that the superaudio signal generating circuit generated is the sine that frequency range is 21Khz~30Khz
Wave signal.
Preferred embodiment is that the bandwidth of the signal amplification circuit in the power amplifier is raw comprising the superaudio signal generating circuit
At superaudio signal frequency.
Preferred embodiment is superaudio signal level and audio signal the highest electricity that the superaudio signal generating circuit generates
Flat percentage is less than 20%.
After adopting the above technical scheme, the beneficial effects of the present invention are: since there is of the invention microphone and power amplifier to work
The sound system of status display function, microphone are equipped with superaudio signal generating circuit, electroacoustic transducer, pickup device and pickup
Signal processing circuit；Signal distribution circuit, filter amplification circuit, microphone channel on-off display circuit, channel are equipped in sound console
Signal processing circuit and Comprehensive Signal Processing circuit, the Comprehensive Signal Processing circuit are also electrically connected with power amplifier, the power amplifier and speaker
Circuit electrical connection；Simultaneously filter and amplification rectification circuit is also provided in sound console and the channel gain amplifier display circuit that amplifies,
Wherein filter and amplification rectification circuit is also electrically connected with speaker circuit.Make it is of the invention can in the case where system equipment is opened,
In real time, it is continual display microphone to sound console, sound console to power amplifier, the entire channel of speaker on-off.If microphone to adjust
There is interruption among the signal path of sound platform, then the microphone channel on state display circuit on sound console will be displayed without and lead
Logical, if there is interruption in the channel that sound console arrives speaker to power amplifier again, the channel gain amplifier display circuit that amplifies shows that gain is
Zero, if the setting of related gain regulating switch is too small, the channel gain amplifier display circuit gain that amplifies is less than normal, then tuner
Failure can timely be discharged, avoid the occurrence of and begin to use the case where just discovery cannot be connected.Therefore microphone of the invention letter
The sound system of disconnected state-visibility all has the real-time continual function of showing of microphone channel on off operating mode,
Also there is the function of showing power amplification sound box on off operating mode and volume, so that the reliability that whole system uses is improved,
Reduce the labor intensity of staff.
Detailed description of the invention
Fig. 1 is the functional block diagram of embodiment one；
Fig. 2 is the functional block diagram of embodiment two；
Fig. 3 is the functional block diagram of embodiment three；
Fig. 4 is another part functional block diagram of embodiment three.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one:
As shown in Figure 1, a kind of sound system with microphone and power amplifier work state display function, including microphone, tuning
Platform, power amplifier and speaker, speaker is interior to be equipped with the speaker circuit being electrically connected with power amplifier, and the speaker loudspeaking being electrically connected with speaker circuit
Device.
Equipped with superaudio signal generating circuit, the electroacoustic being electrically connected with superaudio signal generating circuit in microphone of the invention
Energy converter, the pickup device being placed near electroacoustic transducer, and the pickup signal processing circuit being electrically connected with pickup device.
The signal distribution circuit being electrically connected with pickup signal processing circuit is equipped in sound console of the invention, and respectively with
The filter amplification circuit and channel signal processing circuit of signal distribution circuit electrical connection；It is additionally provided in sound console and filter and amplification electricity
Road electrical connection microphone channel on-off display circuit, the Comprehensive Signal Processing circuit that is electrically connected with channel signal processing circuit, it is comprehensive
Signal processing circuit is closed also to be electrically connected with power amplifier.
The filter and amplification rectification circuit of electrical connection is additionally provided in sound console of the invention simultaneously and the channel gain amplifier that amplifies
Display circuit, filter and amplification rectification circuit are electrically connected with speaker circuit, and filter and amplification rectification circuit obtains the signal of speaker circuit
Afterwards, and by the channel gain amplifier display circuit that amplifies is transferred to after the rectification of signal filter and amplification it goes to show.
As shown in Figure 1, when the sound system with microphone and power amplifier work state display function of the invention works, microphone
The superaudio signal that interior superaudio signal generating circuit generates is converted into superaudio voice signal by electroacoustic transducer, makes microphone
Interior pickup device has picked up normal voice signal and superaudio voice signal, and pickup device output superaudio letter simultaneously
Number and the signal that mixes of audio signal give pickup signal processing circuit.The pickup signal processing circuit inputs mixed signal
After the signal distribution circuit of sound console, mixed signal is divided into two-way by signal distribution circuit, all the way input filter amplifying circuit, should
Superaudio signal remaining after mixed signal filter and amplification is inputted microphone channel on-off display circuit by filter amplification circuit.If words
Cylinder channel is in the conductive state, then superaudio signal is then transferred to sound console, after filtering, enhanced processing, microphone channel
The display conducting of on-off display circuit；Otherwise microphone channel on-off display circuit, which is shown, is not turned on.Therefore sound system of the invention
It can find, timely debug before the use, to improve the reliability that sound system uses.
Signal distribution circuit in sound system sound console of the invention simultaneously believes another way mixed signal input channel
Number processing circuit.The road mixed signal inputs power amplifier after channel signal processing circuit, inputs speaker after power amplifier amplifies,
After speaker circuit, it is finally transmitted to speaker of voice box.Mixed signal is also transmitted in sound console after speaker circuit and sets
The filter and amplification rectification circuit set, mixed signal pass through filter and amplification rectification circuit, filter out audio signal and are left superaudio signal,
After the processing such as amplification, rectification, direct current signal is exported to the channel gain amplifier display circuit that amplifies, makes the on off operating mode and sound of speaker
Amount is revealed.Therefore sound system of the invention, can not only show microphone channel on off operating mode, moreover it is possible to show power amplifier sound
The on off operating mode and volume of case, monitor the state of power amplifier, speaker also, once breaking down can also obtain in time
Exclusion, the reliability that the system of further improving uses.
It is sine wave that frequency range is 21Khz~30Khz that the superaudio signal generating circuit of the present embodiment is generated
Signal.
The bandwidth of power amplifier signal amplification circuit includes the superaudio signal frequency that superaudio signal generating circuit generates.
The percentage of superaudio signal level and audio signal maximum level that superaudio signal generating circuit generates is less than
20%, which not only can guarantee that subsequent circuit can detect superaudio signal, but also can reduce superaudio signal to the greatest extent to sound
The issuable interference of frequency signal.
In conclusion the sound system that microphone and power amplifier work state of the invention is visual, can open in system equipment
In the case where, real-time, continual display microphone to sound console, the on-off in the entire channel of sound console to power amplifier, speaker.If
Have interruption among channel, then conducting will be displayed without on sound console, illustrate it is faulty, it is on the contrary then show conducting, illustrate to talk about
Cylinder is in normal operating conditions to sound console, if sound console has interruption or gain too small to power amplifier, speaker, is adjusting
It can also be shown on sound platform, then failure can be timely discharged in tuner, avoid the occurrence of and begin to use just discovery not
The case where capable of being connected.
It a possibility that present invention greatly improves sound system reliability, reduces sound equipment accident, improves work efficiency,
And the working strength of staff can be mitigated, huge sound system market is given, relatively good economic and social benefit is brought.
Embodiment two:
The present embodiment is basically the same as the first embodiment, the difference is that:
As shown in Fig. 2, further including microphone coding display module, microphone coding display module includes being placed in microphone
Cylinder coding generative circuit, and the microphone coded strings line output circuit and microphone that are electrically connected respectively with microphone coding generative circuit are compiled
Code display circuit, and the first modulation circuit being electrically connected with microphone coding serial output circuit, the first modulation circuit are serially connected in
Between superaudio signal generating circuit and electroacoustic transducer；Microphone coding display module further includes being placed in sound console and filtering
First demodulator circuit of amplifying circuit electrical connection, the sound console microphone coding display circuit being electrically connected with the first demodulator circuit
As shown in Fig. 2, the sound system of the present embodiment, microphone encodes generative circuit and generates encoded signal, encoded signal point
Supplementary biography is defeated by microphone coding serial output circuit and microphone coding display circuit, if microphone coding display circuit shows and receives
Cylinder coding, microphone encode serial output circuit and encoded signal are generated serial code, generate with superaudio signal generating circuit
Superaudio signal inputs the first modulation circuit together, and encoded signal is modulated on superaudio signal by the first modulation circuit, generates
Modulated signal input electroacoustic transducer, modulated signal is converted into superaudio voice signal by electroacoustic transducer, with external sound
Sound signal is picked up simultaneously by pickup device form mixed signal together, and mixed signal is input to pickup signal processing circuit, pickup
Signal processing circuit is transferred to the signal distribution circuit being located in sound console after handling mixed signal, signal distribution circuit is letter
Number it is divided into two-way, wherein being input to filter amplification circuit all the way, filter amplification circuit is filtered amplification to mixed signal, filters
Audio signal, remaining Supersonic frequency modulation are input to the first demodulator circuit, and the first demodulator circuit is from Supersonic frequency modulation
In demodulate microphone encoded signal, microphone encoded signal is input to sound console microphone coding display circuit and is shown.
Embodiment three:
The present embodiment and embodiment two are essentially identical, the difference is that:
It as shown in Figure 2, Figure 3 and Figure 4, further include microphone on state authentication module, microphone on state authentication module packet
It includes the wireless receiving circuit being located in microphone, the second demodulator circuit, compare detection circuit and microphone channel on state display electricity
Road is compared detection circuit and is electrically connected with the microphone coding generative circuit of microphone coding display module；Microphone on state verifies mould
Block further includes the reading microphone coding parallel series output circuit, the second modulation circuit and the nothing that are sequentially connected electrically being located in sound console
Line transmit circuit, read microphone coding parallel series output circuit be electrically connected with the first modulation circuit, radio transmitter with wirelessly
Receive circuit wireless telecommunications connection.
As shown in Figure 2, Figure 3 and Figure 4, the sound system of the present embodiment increases microphone encoding verification function, that is, logical
Cross whether microphone can receive this microphone encoded signal from sound console return to judge whether microphone channel is connected, microphone makes
Whether the channel that employment can be immediately seen this microphone from microphone is connected, and enables more quickly to arrange when system jam
It removes.When the sound system specific works of the present embodiment, it is located at reading microphone coding parallel series output circuit in sound console and successively follows
Ring reads the encoded signal that demodulates of the first demodulator circuit in each microphone channel in sound console, and by each encoded signal
The second modulation circuit is sequentially input in a serial fashion, and each encoded signal is modulated into radiofrequency signal and inputted by the second modulation circuit
Radio transmitter, radio transmitter send radiofrequency signal.It is located at wireless receiving circuit in microphone and receives wireless hair
The radiofrequency signal of transmit-receive radio road transmitting, and radiofrequency signal is inputted into the second demodulator circuit, the second demodulator circuit demodulates radiofrequency signal,
And detection circuit is compared into the encoded signal input that demodulation obtains, comparing detection circuit will encode from the second demodulator circuit and microphone
The encoded signal that generative circuit transmission comes is compared, and Continuity signal is transmitted if encoded signal is consistent to microphone channel, shape is connected
The display conducting of state display circuit；If cannot be detected by certain time be consistent coding if transmission be not turned on signal and give microphone channel
On state display circuit, microphone channel on state display circuit, which is shown, to be not turned on.
The preferred embodiment of present invention described above, is not intended to limit the invention, it is all in spirit of the invention and
Made any modification within principle, etc. the same sound system structure with microphone and power amplifier work state display function
Improve etc., it should all be included in the protection scope of the present invention.
Claims (5)
1. the sound system with microphone and power amplifier work state display function, including microphone, sound console, power amplifier and speaker, institute
The speaker circuit for being equipped in speaker and being electrically connected with the power amplifier, and the speaker of voice box being electrically connected with the speaker circuit are stated,
It is characterized in that,
Equipped with superaudio signal generating circuit, the electroacoustic transduction being electrically connected with the superaudio signal generating circuit in the microphone
Device, the pickup device being placed near the electroacoustic transducer, and the pickup signal processing electricity being electrically connected with the pickup device
Road；The superaudio signal that the superaudio signal generating circuit generates is converted into superaudio sound letter by the electroacoustic transducer
Number, the pickup device has picked up normal voice signal and superaudio voice signal simultaneously, and the pickup device exports Supersonic
The signal that frequency signal and audio signal mix gives the pickup signal processing circuit；
The signal distribution circuit being electrically connected with the pickup signal processing circuit is equipped in the sound console, and respectively with it is described
The filter amplification circuit and channel signal processing circuit of signal distribution circuit electrical connection；It is additionally provided in the sound console and the filter
The electrical connection of wave amplifying circuit microphone channel on-off display circuit, the integrated signal that is electrically connected with the channel signal processing circuit
Processing circuit, the Comprehensive Signal Processing circuit are also electrically connected with the power amplifier；
After the signal distribution circuit has received the mixed signal after the pickup signal processing circuit processes, mixing is believed
Number it is divided into two-way, inputs the filter amplification circuit all the way, the filter amplification circuit will be left after mixed signal filter and amplification
Superaudio signal input the microphone channel on-off display circuit, the microphone channel on-off display circuit is believed according to superaudio
Number the presence or absence of display microphone channel on off operating mode；Another way inputs the channel signal processing circuit, at the channel signal
Reason circuit inputs the Comprehensive Signal Processing circuit after handling mixed signal, and the Comprehensive Signal Processing circuit is by mixed signal
It exports to the power amplifier；
The filter and amplification rectification circuit of electrical connection is additionally provided in the sound console and the channel gain amplifier display circuit that amplifies, it is described
Filter and amplification rectification circuit is electrically connected with the speaker circuit output end, and the filter and amplification rectification circuit obtains the speaker electricity
After the mixed signal on road, audio signal parts are filtered out, by superaudio signal rectification, obtained direct current signal is transferred to the expansion
Message road gain amplifier display circuit goes to show.
2. the sound system according to claim 1 with microphone and power amplifier work state display function, which is characterized in that
It further include microphone coding display module, the microphone coding display module includes that the microphone coding being placed in microphone generates electricity
Road, and the microphone coded strings line output circuit and microphone coding display electricity that are electrically connected respectively with microphone coding generative circuit
Road, and the first modulation circuit being electrically connected with microphone coding serial output circuit, first modulation circuit are serially connected in
Between the superaudio signal generating circuit and the electroacoustic transducer；The microphone coding display module further includes being placed in tune
The first demodulator circuit being electrically connected in sound platform with the filter amplification circuit, the sound console being electrically connected with first demodulator circuit
Microphone encodes display circuit；
The microphone coding generative circuit generates encoded signal, and encoded signal is transferred to the microphone coding Serial output electricity respectively
Road and the microphone encode display circuit, and the microphone coding display circuit shows that the microphone coding received, the microphone are compiled
Encoded signal is generated serial code by sequence line output circuit, the superaudio signal generated with the superaudio signal generating circuit
First modulation circuit is inputted together, and encoded signal is modulated on superaudio signal by first modulation circuit, generation
Modulated signal inputs the electroacoustic transducer, and modulated signal is converted into superaudio voice signal by the electroacoustic transducer, and outer
The voice signal in portion is picked up simultaneously by pickup device form mixed signal together, and mixed signal is input to the pickup signal processing
Circuit, the pickup signal processing circuit are transferred to the signal distribution electricity being located in sound console after handling mixed signal
Signal is divided into two-way by road, the signal distribution circuit, wherein it is input to the filter amplification circuit all the way, the filter and amplification
Circuit is filtered amplification to mixed signal, filters audio signal, and remaining Supersonic frequency modulation is input to first solution
Circuit is adjusted, first demodulator circuit demodulates microphone encoded signal, the input of microphone encoded signal from Supersonic frequency modulation
It is shown to sound console microphone coding display circuit.
3. the sound system according to claim 2 with microphone and power amplifier work state display function, which is characterized in that
It further include microphone on state authentication module, the microphone on state authentication module includes the successively electricity being located in the microphone
The wireless receiving circuit of connection, the second demodulator circuit compare detection circuit and microphone channel on state display circuit, the ratio
It is electrically connected compared with detection circuit with the microphone coding generative circuit of microphone coding display module；The microphone on state
Authentication module further includes the reading microphone coding parallel series output circuit, the second tune that are sequentially connected electrically being located in the sound console
Circuit and radio transmitter processed, the reading microphone coding parallel series output circuit are electrically connected with first modulation circuit,
The radio transmitter is connect with the wireless receiving circuit wireless telecommunications；
Be located in sound console it is described read microphone coding parallel series output circuit circuit sequentially read it is each in the sound console
The encoded signal that the first demodulator circuit in microphone channel demodulates, and each encoded signal is sequentially input in a serial fashion
Each encoded signal is modulated into radiofrequency signal and inputs the wireless transmission by second modulation circuit, second modulation circuit
Circuit, the radio transmitter send radiofrequency signal；
It is located at the radiofrequency signal that the wireless receiving circuit in microphone receives radio transmitter transmitting, and by radiofrequency signal
Second demodulator circuit is inputted, second demodulator circuit demodulates radiofrequency signal, and the encoded signal that demodulation is obtained is defeated
Enter the relatively detection circuit, the relatively detection circuit will be from the second demodulator circuit and microphone coding generative circuit transmission
The encoded signal come is compared, and Continuity signal is transmitted if encoded signal is consistent and gives microphone channel on state display electricity
Road display conducting；If cannot be detected by certain time be consistent coding if transmission be not turned on signal to the microphone channel conducting
Status display circuit, the microphone channel on state display circuit, which is shown, to be not turned on.
4. the sound system according to any one of claims 1 to 3 with microphone and power amplifier work state display function,
It is characterized in that, what the superaudio signal generating circuit generated is that frequency range is 21 Khz~30Khz sine wave signal.
5. the sound system according to any one of claims 1 to 3 with microphone and power amplifier work state display function,
It is characterized in that, the bandwidth of the signal amplification circuit in the power amplifier includes the superaudio that the superaudio signal generating circuit generates
Signal frequency.
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| CN201710172626.4A CN106804019B (en) | 2017-03-21 | 2017-03-21 | Sound system with microphone and power amplifier work state display function |
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| CN201710172626.4A CN106804019B (en) | 2017-03-21 | 2017-03-21 | Sound system with microphone and power amplifier work state display function |
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| CN106804019B true CN106804019B (en) | 2019-10-08 |
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| CN109151666A (en) * | 2018-09-18 | 2019-01-04 | 苏健荣 | A kind of wireless microphone tele-control system |
| CN113259831A (en) * | 2021-06-03 | 2021-08-13 | 广州市威牛智能科技有限公司 | Audio amplifier AI intellectual detection system protection system |
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|---|---|---|---|---|
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| US10063969B2 (en) * | 2015-04-06 | 2018-08-28 | Aftermaster, Inc. | Microchip for audio enhancement processing |
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| CN106804019A (en) | 2017-06-06 |
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Effective date of registration: 20240409 Address after: 315000 Hushan village, jishigang Town, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO HAISHU BAINA AUDIO Co.,Ltd. Country or region after: China Address before: 261061 No. 5147 Dongfeng East Street, Shandong, Weifang Patentee before: WEIFANG University Country or region before: China |