Microphone with automatic gain and mute functions

Abstract

The utility model relates to the field of audio processing, in particular to a microphone with automatic gain and mute functions. The microphone comprises a microphone shell and a base used for supporting the microphone shell. A microphone core and a circuit board are arranged in the microphone shell. The microphone core is used for receiving a sound signal and transmitting the signal to the circuit board. The circuit board comprises a distance detection module, a mute control module, a gain control module and a feedback optimization module. And a distance measuring device is arranged outside the microphone shell and is used for measuring the distance between a user and the microphone and transmitting a signal to the distance detection module. The mute control module implements automatic mute control according to an output signal of the distance detection module, and the gain control module implements automatic gain according to the output signal of the distance detection module. The distance between a user and the microphone is measured in real time through the distance measuring device, a sound signal is automatically increased when the distance is long, and the microphone is automatically muted when the distance is too long. The sound quality is improved, the complexity of manual adjustment of a user is reduced, environmental noise interference is effectively prevented, and the sound quality control device is suitable for various scenes such as a conference system, recording equipment and a voice recognition system.

Description

Technical Field

[0001] This utility model relates to the field of audio processing, specifically to a microphone with automatic gain control and mute function. Background Technology

[0002] In modern communication and audio processing, microphones, as core devices for sound acquisition, are widely used in various scenarios such as conference systems, recording equipment, and speech recognition systems. Traditional microphones typically require users to manually adjust gain and mute, which is inconvenient. For example, during meetings or presentations, users need to frequently adjust the microphone gain to adapt to different distances and ambient noise levels, and manually mute the microphone when not in use to prevent interference from ambient noise. These operations not only increase the user's burden but are also prone to sound quality degradation and noise interference due to untimely operation or improper settings.

[0003] To enhance microphone intelligence and user experience, several automatic gain control and mute control solutions have emerged in recent years. However, existing technologies often rely on complex algorithms and sensors for automatic gain control and mute functionality, resulting in high costs and insufficient accuracy and response speed to meet the high demands of users in practical applications. To address these issues, this invention proposes a microphone with automatic gain control and mute functionality. Utility Model Content

[0004] The purpose of this invention is to provide a microphone with automatic gain control and mute function. By integrating a ranging device and optimizing the circuit design, it achieves faster and more accurate automatic gain control and mute control, providing better sound quality and user experience, and adapting to various application scenarios.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a microphone with automatic gain control and mute function, comprising a microphone housing and a base for supporting the microphone housing; the microphone housing contains a microphone core and a circuit board; the microphone core is used to receive sound signals and transmit the signals to the circuit board; the circuit board includes a distance detection module, a mute control module, a gain control module, and a feedback optimization module; the microphone housing is provided with a distance measuring device on its exterior for measuring the distance between the user and the microphone and transmitting the signal to the distance detection module; the mute control module implements automatic mute control based on the output signal of the distance detection module, and the gain control module implements automatic gain control based on the output signal of the distance detection module.

[0006] Furthermore, the ranging device is an ultrasonic sensor, an infrared sensor, or a laser ranging sensor.

[0007] Furthermore, the microphone housing is provided with uniformly distributed sound-receiving holes that penetrate the inside and outside of the microphone housing, and a protective mesh sleeve is fitted over the outside of the microphone housing, with the protective mesh sleeve positioned at the location of the sound-receiving holes.

[0008] Furthermore, the protective mesh cover is fitted to the microphone housing, and the protective mesh cover is a sponge cover, a pop filter, or a windproof cover.

[0009] Furthermore, a distance indicator light is provided on the outside of the microphone housing. The distance indicator light is connected to the distance detection module and is used to dynamically display the value of the current distance between the user and the microphone.

[0010] Furthermore, the microphone housing is also equipped with an operation button on the outside. The operation button is connected to the feedback optimization module. After the user adjusts the parameters through the operation button, the signal is sent to the feedback optimization module to achieve customized sound source output.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) This utility model can automatically adjust the gain according to the distance between the user and the microphone, so that the volume is kept at a suitable level, thereby improving the sound quality and reducing the tediousness of manual adjustment by the user.

[0013] (2) When the user moves away from the microphone, the mute function is automatically triggered to prevent environmental noise interference or privacy leakage, and to improve the audio quality in scenarios such as meetings and recordings.

[0014] (3) The integrated ranging device can accurately measure the distance between the user and the microphone in real time and transmit it to the internal circuit board to achieve fast-response automatic control.

[0015] (4) The distance indicator light and operation button settings allow users to view and adjust parameters intuitively, making operation simple and adaptable to different usage needs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the principle of this utility model.

[0019] Label Explanation:

[0020] 1. Microphone core; 2. Circuit board; 21. Distance detection module; 22. Mute control module;

[0021] 23. Gain control module; 24. Feedback optimization module; 3. Ranging device; 4. Receiver hole;

[0022] 5. Protective mesh cover; 6. Distance indicator light; 7. Operation button. Detailed Implementation

[0023] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0024] Please refer to Figures 1-3 As shown, the technical solution adopted by this utility model is as follows: a microphone with automatic gain and mute functions, comprising a microphone housing and a base for supporting the microphone housing; the microphone housing is provided with a microphone core 1 and a circuit board 2 inside; the microphone core 1 is used to receive sound signals and transmit the signals to the circuit board 2; the circuit board 2 includes a distance detection module 21, a mute control module 22, a gain control module 23 and a feedback optimization module 24; the microphone housing is provided with a distance measuring device 3 outside, used to measure the distance between the user and the microphone and transmit the signal to the distance detection module 21; the mute control module 22 implements automatic mute control according to the output signal of the distance detection module 21, and the gain control module 23 implements automatic gain control according to the output signal of the distance detection module 21.

[0025] As can be seen from the above description, the distance measuring device 3 can accurately measure the distance between the user and the microphone in real time and transmit the signal to the distance detection module 21 in the internal circuit board 2; the mute control module 22 and the gain control module 23 implement corresponding automatic mute control or automatic gain according to the output signal of the distance detection module 21, so that the volume is kept at an appropriate level, thereby improving the sound quality and reducing the tediousness of manual adjustment by the user.

[0026] Preferably, the ranging device 3 is an ultrasonic sensor, an infrared sensor, or a laser ranging sensor.

[0027] As can be seen from the above description, ultrasonic sensors have low requirements for environmental conditions and are not affected by factors such as light and the color of the object being measured; infrared sensors are suitable for scenarios that require high measurement accuracy and fast response; laser ranging sensors are suitable for complex application scenarios that require high-precision measurement and data processing; therefore, the appropriate type of ranging device can be selected according to the user's needs.

[0028] Preferably, the microphone housing is provided with uniformly distributed sound-receiving holes 4 that penetrate the inside and outside of the microphone housing, and the microphone housing is covered with a protective mesh sleeve 5, which is positioned at the sound-receiving holes 4.

[0029] As can be seen from the above description, by setting a protective mesh cover 5 on the outside of the microphone hole 4, it can play a role in preventing wind, spray, and dust.

[0030] Preferably, the protective mesh cover 5 is fitted to the microphone housing, and the protective mesh cover 5 is a sponge cover, a pop filter, or a windproof cover.

[0031] As can be seen from the above description, the protective netting 5 can be of various types. Depending on the actual use needs, it can be a sponge cover, a blowout shield, a wind shield, a dust shield, etc., or multiple protective netting covers can be used in combination.

[0032] Preferably, a distance indicator light 6 is provided on the outside of the microphone housing. The distance indicator light 6 is connected to the distance detection module 21 and is used to dynamically display the value of the current distance between the user and the microphone.

[0033] As can be seen from the above description, the distance indicator 6 can display the distance between the user and the microphone, so as to provide real-time feedback to the user and make it easy to understand and use.

[0034] Preferably, the microphone housing is further provided with an operation button 7 on the outside. The operation button 7 is connected to the feedback optimization module 24. After the user adjusts the parameters through the operation button 7, the signal is sent to the feedback optimization module 24, thereby realizing the customized sound source output.

[0035] As can be seen from the above description, operation button 7 can realize power on / off, volume adjustment, mode switching, parameter setting, etc., which facilitates user interaction.

[0036] The working principle of this utility model:

[0037] The sound will be transmitted through the sound hole 4 to the microphone core 1 inside the microphone housing. The microphone core 1 will acquire the sound source and convert it into an electrical signal, which will then be transmitted to the circuit board 2.

[0038] The ranging device 3 measures the distance between the user and the microphone using ultrasonic waves, infrared rays, or lasers, and transmits the data signal to the distance detection module 21; at the same time, the distance indicator light 6 displays the corresponding measured distance value.

[0039] Circuit board 2 processes the acquired sound signal and distance signal. In the mute control module 22, it determines whether to activate the mute mode based on the received distance data. If the determination is yes, it triggers mute and transmits the suppression signal to the gain adjustment module.

[0040] In the gain adjustment module 23, the amplitude of the sound that needs to be adjusted is calculated based on the received distance data, and the processed sound signal is output. However, if a suppression signal is received from the mute control module 22, the sound signal does not need to be processed due to mute.

[0041] In the feedback optimization module 24, the user can input instructions such as adjustment parameters through the operation button 7. This module transmits the adjusted parameters to the mute control module 22 and the gain adjustment module 23, and applies them in the subsequent control and adjustment process.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A microphone with automatic gain control and mute function, comprising a microphone housing and a base for supporting the microphone housing; characterized in that, The microphone housing contains a microphone core and a circuit board; the microphone core is used to receive sound signals and transmit the signals to the circuit board; the circuit board includes a distance detection module, a mute control module, a gain control module, and a feedback optimization module; The microphone housing is equipped with a distance measuring device on its exterior, which measures the distance between the user and the microphone and transmits the signal to the distance detection module; the mute control module implements automatic mute control based on the output signal of the distance detection module, and the gain control module implements automatic gain control based on the output signal of the distance detection module.

2. A microphone with automatic gain control and mute function according to claim 1, characterized in that, The ranging device is an ultrasonic sensor, an infrared sensor, or a laser ranging sensor.

3. A microphone with automatic gain control and mute function according to claim 1, characterized in that, The microphone housing is provided with uniformly distributed sound-receiving holes that penetrate the inside and outside of the microphone housing. A protective mesh cover is fitted over the outside of the microphone housing, and the protective mesh cover is fitted over the sound-receiving holes.

4. A microphone with automatic gain control and mute function according to claim 3, characterized in that, The protective mesh cover fits snugly against the microphone housing, and the protective mesh cover is a sponge cover, a pop filter, or a windproof cover.

5. A microphone with automatic gain control and mute function according to claim 1, characterized in that, The microphone housing is equipped with a distance indicator light on the outside. The distance indicator light is connected to the distance detection module and is used to dynamically display the current distance between the user and the microphone.

6. A microphone with automatic gain control and mute function according to claim 1, characterized in that, The microphone housing is also equipped with an operation button on the outside. The operation button is connected to the feedback optimization module. After the user adjusts the parameters through the operation button, the signal is sent to the feedback optimization module to achieve customized sound source output.

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