CN212413422U - Microphone with frequency spectrum function for automatic detection of live sound card - Google Patents
Microphone with frequency spectrum function for automatic detection of live sound card Download PDFInfo
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- CN212413422U CN212413422U CN202020835665.5U CN202020835665U CN212413422U CN 212413422 U CN212413422 U CN 212413422U CN 202020835665 U CN202020835665 U CN 202020835665U CN 212413422 U CN212413422 U CN 212413422U
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Abstract
The utility model discloses a microphone with frequency spectrum function for automatic detection of live sound card, which comprises a microphone input end, a pre-amplifier circuit, a frequency dividing circuit, an MCU signal processing circuit and a display circuit; the microphone input end, the pre-stage amplifier circuit and the frequency dividing circuit are electrically connected in sequence, and the frequency dividing circuit is used for dividing the amplified signal into a left signal, a middle signal and a right signal; the display circuit is composed of a left-path frequency spectrum lamp, a middle-path frequency spectrum lamp and a right-path frequency spectrum lamp, and the MCU signal processing circuit is used for receiving the left-path signal, the middle-path signal and the right-path signal and controlling the left-path frequency spectrum lamp, the middle-path frequency spectrum lamp and the right-path frequency spectrum lamp to change and flash; the utility model has the advantages that: the interest in the singing process can be increased more, and the whole singing joyful atmosphere is more hot.
Description
Technical Field
The utility model relates to a microphone technical field, more specifically the utility model relates to a be used in live sound card automatic detection area spectrum function's microphone.
Background
With the progress of science and technology, various sound equipment enters the home of common people. People like to play their own emotion in a form of self-entertainment and self-entertainment-singing after work in order to relieve the social pressure and provide good-quality life. However, the microphones used for singing have been in a uniform shape without any dynamic sense and aesthetic feeling, thus bringing about a little defect in beauty of users in the using process.
Disclosure of Invention
In order to overcome the not enough of prior art, the utility model provides a be used in microphone of live sound card automated inspection area spectrum function, this microphone can drive the spectrum lamp and glimmer according to the signal variation, can add more the taste of singing in-process, lets the atmosphere of whole singing joyful more warm.
The utility model provides a technical scheme that its technical problem adopted is: in a microphone for use with a live sound card for automatic detection of banded spectrum, the improvement comprising: the device comprises a microphone input end, a pre-amplifier circuit, a frequency dividing circuit, an MCU signal processing circuit and a display circuit;
the microphone input end, the pre-amplifier circuit and the frequency dividing circuit are electrically connected in sequence, the pre-amplifier circuit is used for dividing the amplified signal into a left signal, a middle signal and a right signal;
MCU signal processing circuit connect on frequency dividing circuit, display circuit electric connection on MCU signal processing circuit, display circuit constitute by left way spectrum lamp, well way spectrum lamp and right way spectrum lamp, MCU signal processing circuit be used for receiving left way signal, well way signal and right way signal to control left way spectrum lamp, well way spectrum lamp and right way spectrum lamp change the scintillation.
In the above structure, the power supply further comprises a power supply, and the power supply is electrically connected to the preamplifier circuit and the MCU signal processing circuit.
In the above structure, the preamplifier circuit includes a chip U6, and the model of the chip U6 is SGM 721.
IN the above structure, the chip U6 has an OUT pin, a VS-pin, an IN + pin, an IN-pin and a VS + pin;
the microphone input end is provided with a first end and a second end, a capacitor C2 and a resistor R3 are connected IN series between the first end of the microphone input end and the IN-pin, the second end of the microphone input end is grounded, and a capacitor C5 and a resistor R4 which are connected IN parallel are arranged between the IN-pin and the OUT-pin;
the power supply is provided with a power supply end V33, a resistor R1 and a resistor R2 are connected in series between the power supply end V33 and the first end of the microphone input end, the end point between the resistor R1 and the resistor R2 is a common end, a capacitor C3 and a capacitor C4 which are connected in parallel are arranged between the common end and the grounding end, a capacitor C1 is arranged between the first end of the microphone input end and the grounding end, and a capacitor C9 is arranged between the power supply end V33 and the grounding end;
a resistor R5 is arranged between the power supply end V33 and the IN + pin, and a capacitor C6, a capacitor C7 and a resistor R6 which are connected IN parallel are arranged between the IN + pin and the grounding end; an inductor L2 is arranged between the power supply end V33 and the VS + pin, and a capacitor C10 and a capacitor C11 which are connected in parallel are arranged between the VS + pin and the ground end.
In the above structure, the frequency divider circuit includes a capacitor C8, a first signal output terminal AU1, a second signal output terminal AU2, and a third signal output terminal AU 3;
one end of the capacitor C8 is connected to an OUT pin, the other end of the capacitor C8 is a signal end, a resistor R11 and a capacitor C15 which are connected in series are arranged between the signal end and the first signal output end AU1, a resistor R9 and a capacitor C16 which are connected in series are arranged between the signal end and the second signal output end AU2, and a resistor R12 and a capacitor C17 which are connected in series are arranged between the signal end and the third signal output end AU 3;
a resistor R14 is arranged between the first signal output end AU1 and a grounding end, a resistor R13 is arranged between the second signal output end AU2 and the grounding end, and a resistor R15 is arranged between the third signal output end AU3 and the grounding end.
In the above structure, the MCU signal processing circuit includes a chip U2, and the model of the chip U2 is NV 13T.
In the above structure, the left road spectrum lamp, the middle road spectrum lamp and the right road spectrum lamp all include a blue lamp, a yellow lamp and a red lamp which are connected in parallel.
The utility model has the advantages that: when the input end of the microphone receives a voice signal, the voice signal is amplified through the preamplifier circuit, then the voice signal is subjected to frequency division processing through the frequency division circuit, then the voice signal is sent to the MCU signal processing circuit to be subjected to signal processing to obtain a left signal, a middle signal and a right signal, the three signals respectively drive the frequency spectrum lamps to flicker according to signal changes, more interest in the singing process can be added, and the whole singing joyful atmosphere is more hot.
Drawings
Fig. 1 is a block diagram of a microphone with spectrum function for automatic detection of a live sound card of the present invention.
Fig. 2 is a structural diagram of the preamplifier circuit and the frequency divider circuit of the present invention.
Fig. 3 is a structural diagram of the MCU signal processing circuit of the present invention.
Fig. 4 is a schematic structural diagram of the left-side spectrum lamp of the present invention.
Fig. 5 is a schematic structural diagram of the middle-way spectrum lamp of the present invention.
Fig. 6 is a schematic structural diagram of the right-side spectrum lamp of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.
Referring to fig. 1 and 2, the present invention discloses a microphone with a frequency spectrum function for automatic detection of a live sound card, specifically, the microphone comprises a microphone input terminal 10, a preamplifier circuit 20, a frequency dividing circuit 30, an MCU signal processing circuit 40 and a display circuit 50; the microphone input end 10, the preamplifier circuit 20 and the frequency dividing circuit 30 are electrically connected in sequence, the preamplifier circuit 20 is used for dividing the voice signal received by the microphone input end 10, and the frequency dividing circuit 30 is used for dividing the amplified signal into a left signal 301, a middle signal 302 and a right signal 303; the MCU signal processing circuit 40 is connected to the frequency dividing circuit 30, the display circuit 50 is electrically connected to the MCU signal processing circuit 40, the display circuit 50 is composed of a left-way spectrum lamp 501, a middle-way spectrum lamp 502 and a right-way spectrum lamp 503, and the MCU signal processing circuit 40 is used for receiving the left-way signal 301, the middle-way signal 302 and the right-way signal 303 and controlling the left-way spectrum lamp 501, the middle-way spectrum lamp 502 and the right-way spectrum lamp 503 to change and flash.
In the above circuit structure, the power supply 60 is further included, and the power supply 60 is electrically connected to the preamplifier circuit 20 and the MCU signal processing circuit 40, respectively. In this embodiment, as shown in fig. 2, the preamplifier circuit 20 includes a chip U6, and the model of the chip U6 is SGM 721. The chip U6 is provided with an OUT pin, a VS-pin, an IN + pin, an IN-pin and a VS + pin; the microphone input end 10 is provided with a first end and a second end, a capacitor C2 and a resistor R3 are connected IN series between the first end of the microphone input end 10 and an IN-pin, the second end of the microphone input end 10 is grounded, and a capacitor C5 and a resistor R4 which are connected IN parallel are arranged between the IN-pin and an OUT pin; the power supply 60 is provided with a power supply end V33, a resistor R1 and a resistor R2 are connected in series between the power supply end V33 and the first end of the microphone input end 10, an end point between the resistor R1 and the resistor R2 is a common end, a capacitor C3 and a capacitor C4 which are connected in parallel are arranged between the common end and a ground end, a capacitor C1 is arranged between the first end of the microphone input end 10 and the ground end, and a capacitor C9 is arranged between the power supply end V33 and the ground end; a resistor R5 is arranged between the power supply end V33 and the IN + pin, and a capacitor C6, a capacitor C7 and a resistor R6 which are connected IN parallel are arranged between the IN + pin and the grounding end; an inductor L2 is arranged between the power supply end V33 and the VS + pin, and a capacitor C10 and a capacitor C11 which are connected in parallel are arranged between the VS + pin and the ground end.
With continued reference to fig. 2, the frequency divider circuit 30 includes a capacitor C8, a first signal output terminal AU1, a second signal output terminal AU2, and a third signal output terminal AU 3; one end of the capacitor C8 is connected to an OUT pin, the other end of the capacitor C8 is a signal end, a resistor R11 and a capacitor C15 which are connected in series are arranged between the signal end and the first signal output end AU1, a resistor R9 and a capacitor C16 which are connected in series are arranged between the signal end and the second signal output end AU2, and a resistor R12 and a capacitor C17 which are connected in series are arranged between the signal end and the third signal output end AU 3; a resistor R14 is arranged between the first signal output end AU1 and a grounding end, a resistor R13 is arranged between the second signal output end AU2 and the grounding end, and a resistor R15 is arranged between the third signal output end AU3 and the grounding end.
As shown in fig. 3, the MCU signal processing circuit 40 includes a chip U2, and the model of the chip U2 is NV 13T. As shown in fig. 4, 5 and 6, the left road spectrum lamp 501, the middle road spectrum lamp 502 and the right road spectrum lamp 503 each include a blue lamp, a yellow lamp and a red lamp connected in parallel.
By combining the structure, when the input end of the microphone receives a voice signal, the voice signal is amplified by the preamplifier circuit, then the voice signal is subjected to frequency division processing by the frequency division circuit, and then the voice signal is sent to the MCU signal processing circuit to be subjected to signal processing to obtain a left signal, a middle signal and a right signal, and the frequency spectrum lamps are respectively driven by the three signals to flicker according to signal changes, so that more interest can be added in the singing process, and the whole singing joyful atmosphere is more hot.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (7)
1. The utility model provides a be used in microphone of live broadcast sound card automated inspection area frequency spectrum function which characterized in that: the device comprises a microphone input end, a pre-amplifier circuit, a frequency dividing circuit, an MCU signal processing circuit and a display circuit;
the microphone input end, the pre-amplifier circuit and the frequency dividing circuit are electrically connected in sequence, the pre-amplifier circuit is used for dividing the amplified signal into a left signal, a middle signal and a right signal;
MCU signal processing circuit connect on frequency dividing circuit, display circuit electric connection on MCU signal processing circuit, display circuit constitute by left way spectrum lamp, well way spectrum lamp and right way spectrum lamp, MCU signal processing circuit be used for receiving left way signal, well way signal and right way signal to control left way spectrum lamp, well way spectrum lamp and right way spectrum lamp change the scintillation.
2. The microphone for the live sound card automatic detection band spectrum function according to claim 1, wherein: the power supply is electrically connected with the preamplifier circuit and the MCU signal processing circuit respectively.
3. The microphone for the live sound card automatic detection band spectrum function according to claim 2, wherein: the preamplifier circuit comprises a chip U6, and the model of the chip U6 is SGM 721.
4. A microphone for use in a live sound card for automatic detection of banded spectrum functionality according to claim 3, wherein: the chip U6 is provided with an OUT pin, a VS-pin, an IN + pin, an IN-pin and a VS + pin;
the microphone input end is provided with a first end and a second end, a capacitor C2 and a resistor R3 are connected IN series between the first end of the microphone input end and the IN-pin, the second end of the microphone input end is grounded, and a capacitor C5 and a resistor R4 which are connected IN parallel are arranged between the IN-pin and the OUT-pin;
the power supply is provided with a power supply end V33, a resistor R1 and a resistor R2 are connected in series between the power supply end V33 and the first end of the microphone input end, the end point between the resistor R1 and the resistor R2 is a common end, a capacitor C3 and a capacitor C4 which are connected in parallel are arranged between the common end and the grounding end, a capacitor C1 is arranged between the first end of the microphone input end and the grounding end, and a capacitor C9 is arranged between the power supply end V33 and the grounding end;
a resistor R5 is arranged between the power supply end V33 and the IN + pin, and a capacitor C6, a capacitor C7 and a resistor R6 which are connected IN parallel are arranged between the IN + pin and the grounding end; an inductor L2 is arranged between the power supply end V33 and the VS + pin, and a capacitor C10 and a capacitor C11 which are connected in parallel are arranged between the VS + pin and the ground end.
5. The microphone for the live sound card automatic detection band spectrum function according to the claim 4, characterized in that: the frequency division circuit comprises a capacitor C8, a first signal output end AU1, a second signal output end AU2 and a third signal output end AU 3;
one end of the capacitor C8 is connected to an OUT pin, the other end of the capacitor C8 is a signal end, a resistor R11 and a capacitor C15 which are connected in series are arranged between the signal end and the first signal output end AU1, a resistor R9 and a capacitor C16 which are connected in series are arranged between the signal end and the second signal output end AU2, and a resistor R12 and a capacitor C17 which are connected in series are arranged between the signal end and the third signal output end AU 3;
a resistor R14 is arranged between the first signal output end AU1 and a grounding end, a resistor R13 is arranged between the second signal output end AU2 and the grounding end, and a resistor R15 is arranged between the third signal output end AU3 and the grounding end.
6. The microphone for the live sound card automatic detection band spectrum function according to claim 1, wherein: the MCU signal processing circuit comprises a chip U2, and the model of the chip U2 is NV 13T.
7. The microphone for the live sound card automatic detection band spectrum function according to claim 1, wherein: the left road frequency spectrum lamp, the middle road frequency spectrum lamp and the right road frequency spectrum lamp respectively comprise a blue lamp, a yellow lamp and a red lamp which are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020835665.5U CN212413422U (en) | 2020-05-19 | 2020-05-19 | Microphone with frequency spectrum function for automatic detection of live sound card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020835665.5U CN212413422U (en) | 2020-05-19 | 2020-05-19 | Microphone with frequency spectrum function for automatic detection of live sound card |
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| Publication Number | Publication Date |
|---|---|
| CN212413422U true CN212413422U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020835665.5U Expired - Fee Related CN212413422U (en) | 2020-05-19 | 2020-05-19 | Microphone with frequency spectrum function for automatic detection of live sound card |
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| Country | Link |
|---|---|
| CN (1) | CN212413422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113784257A (en) * | 2021-09-08 | 2021-12-10 | 深圳市长丰影像器材有限公司 | Multifunctional microphone |
-
2020
- 2020-05-19 CN CN202020835665.5U patent/CN212413422U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113784257A (en) * | 2021-09-08 | 2021-12-10 | 深圳市长丰影像器材有限公司 | Multifunctional microphone |
| CN113784257B (en) * | 2021-09-08 | 2024-03-19 | 深圳市长丰影像器材有限公司 | Multifunctional microphone |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |