CN213634456U - Sound card device with frequency gain adjusting function - Google Patents
Sound card device with frequency gain adjusting function Download PDFInfo
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- CN213634456U CN213634456U CN202023169559.7U CN202023169559U CN213634456U CN 213634456 U CN213634456 U CN 213634456U CN 202023169559 U CN202023169559 U CN 202023169559U CN 213634456 U CN213634456 U CN 213634456U
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- clippers
- frequency gain
- adjusting
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- rcv420
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Abstract
The utility model discloses a sound card device with frequency gain adjustment function, including the body and wrap up the shell on the body, the front end of shell is provided with adjusting panel, and adjusting panel's middle part region sets up 4 groups of tuning clippers side by side, and 4 groups of tuning clippers are live broadcast volume tuning clippers, gain adjustment clippers, reverberation adjustment clippers, monitoring volume adjustment clippers from left to right in proper order; a frequency gain adjusting circuit is integrated in the body, and the signal-to-noise ratio of the sound signal is adjusted through the frequency gain adjusting circuit according to the pushing amount of the gain adjusting clipper; the utility model discloses a sound card device has increased frequency gain control circuit on the basis of former regulation volume, through gain control circuit governing system's gain to can adjust the signal-noise ratio according to the environment, make the sound reduction degree after handling better.
Description
Technical Field
The utility model relates to a sound card device especially involves a sound card device with frequency gain regulatory function.
Background
Along with the gradual heat of live net, professional anchor all can be equipped with sound card equipment, handles sound through sound card equipment, can make sound more will be mellow and smooth, and the sound card exposes in outside noisy environment, and the noise all can have great influence to audio regulation and final music presentation.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems of the prior art to a certain extent. Therefore, the utility model aims at providing a sound card device which can improve the signal-to-noise ratio.
A sound card device with a frequency gain adjusting function comprises a body and a shell wrapped on the body, wherein an adjusting panel is arranged at the front end of the shell, 4 groups of tuning clippers are arranged in the middle area of the adjusting panel side by side, and the 4 groups of tuning clippers sequentially comprise a live volume tuning clipper, a gain adjusting clipper, a reverberation adjusting clipper and a monitoring volume adjusting clipper from left to right; a frequency gain adjusting circuit is integrated in the body, and the signal-to-noise ratio of the sound signal is adjusted through the frequency gain adjusting circuit according to the pushing amount of the gain adjusting clipper.
Preferably, the frequency gain adjusting circuit comprises an RCV420 amplifier, a resistor R1 and a capacitor C1 connected to a non-inverting input terminal of the RCV420 amplifier, a capacitor C2 connected to an inverting input terminal of the RCV420 amplifier, a resistor RX connected to an input terminal of the resistor R1 and the inverting input terminal of the RCV420 amplifier, an adjustable resistor R2 provided to a positive power supply terminal of the RCV420 amplifier, a capacitor C3 provided to an output terminal of the RCV420 amplifier, and a speaker connected in series with the capacitor C3.
The utility model has the advantages that:
the utility model discloses a sound card device has increased frequency gain control circuit on the basis of former regulation volume, through gain control circuit governing system's gain to can adjust the signal-noise ratio according to the environment, make the sound reduction degree after handling better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a front view of an acoustic card device with frequency gain adjustment function according to the present invention;
fig. 2 is a circuit diagram of the frequency gain adjustment circuit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, inner and outer, and the center … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Example 1:
as shown in fig. 1, the sound card device with the frequency gain adjustment function comprises a body and a shell 1 wrapped on the body, wherein an adjustment panel is arranged at the front end of the shell 1, 4 groups of tuning clippers are arranged in the middle area of the adjustment panel side by side, and the 4 groups of tuning clippers sequentially comprise a live broadcast volume tuning clipper 11, a gain adjustment clipper 12, a reverberation adjustment clipper 13 and a monitoring volume adjustment clipper 14 from left to right;
the direct broadcast volume tuning clipper 11 and the monitoring volume tuning clipper 14 are connected with potentiometers at the bottoms, and adjust the level of the potentiometers, so as to process the flowing sound signals and adjust the volume of the sound.
It should be noted that reverberation is generally echo intensity in unit time and space, and the factors influencing reverberation are mainly the size of a live broadcast room and reflection intensity; therefore, the reverberation adjustment clipper 13 is properly adjusted by utilizing the two groups of factors, and the delay time of reverberation is adjusted, so that the optimal reverberation effect can be achieved.
The frequency gain adjusting circuit shown in fig. 2 comprises an RCV420 amplifier, a resistor R1 and a capacitor C1 connected to the non-inverting input terminal of the RCV420 amplifier, a capacitor C2 connected to the inverting input terminal of the RCV420 amplifier, and a resistor RX connected to the input terminal of the resistor R1 and the inverting input terminal of the RCV420 amplifier, and further comprises an adjustable resistor R2 provided to the positive power terminal of the RCV420 amplifier, a capacitor C3 provided to the output terminal of the RCV420 amplifier, and a speaker connected in series with the capacitor C3, wherein the adjustable resistor R2 is connected to the input terminal of the capacitor.
In the present embodiment, setting the resistance value of R2 to 300 ohms, R1 to 100 ohms, and RX to 1000 ohms, the gain adjustment range can be calculated by the following gain calculation formula:
VOUT/IIN＝0.3RX/(RX+R1+R2)
in the above formula, VOUTTo output a voltage, IINIs the input current;
according to the formula, R1, R2 and R3, the gain adjustment range is 0.21-0.27, and the adjustment range is realized by the up-and-down shifting of the gain adjustment clipper 12. The gain adjustment circuit is used for carrying out gain adjustment on the audio signal at the input end of the sound card, so that noise can be effectively filtered, and a clean and distortion-free audio signal can be restored; the audio input device may be a live device, a headset, etc.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A sound card device with frequency gain adjustment function is characterized in that: the multifunctional volume adjusting device comprises a body and a shell wrapped on the body, wherein an adjusting panel is arranged at the front end of the shell, 4 groups of tuning clippers are arranged in the middle area of the adjusting panel side by side, and the 4 groups of tuning clippers sequentially comprise a live volume tuning clipper, a gain adjusting clipper, a reverberation adjusting clipper and a monitoring volume adjusting clipper from left to right; a frequency gain adjusting circuit is integrated in the body, and the signal-to-noise ratio of the sound signal is adjusted through the frequency gain adjusting circuit according to the pushing amount of the gain adjusting clipper.
2. The sound card device with frequency gain adjustment function according to claim 1, characterized in that: the frequency gain adjusting circuit comprises an RCV420 amplifier, a resistor R1 and a capacitor C1 which are connected with the non-inverting input end of the RCV420 amplifier, a capacitor C2 which is connected with the inverting input end of the RCV420 amplifier, a resistor RX which is connected with the input end of the resistor R1 and the inverting input end of the RCV420 amplifier, an adjustable resistor R2 which is arranged with the positive power supply end of the RCV420 amplifier, a capacitor C3 which is arranged at the output end of the RCV420 amplifier, and a loudspeaker which is connected with the C3 in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023169559.7U CN213634456U (en) | 2020-12-25 | 2020-12-25 | Sound card device with frequency gain adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023169559.7U CN213634456U (en) | 2020-12-25 | 2020-12-25 | Sound card device with frequency gain adjusting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213634456U true CN213634456U (en) | 2021-07-06 |
Family
ID=76640426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023169559.7U Active CN213634456U (en) | 2020-12-25 | 2020-12-25 | Sound card device with frequency gain adjusting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213634456U (en) |
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2020
- 2020-12-25 CN CN202023169559.7U patent/CN213634456U/en active Active
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