Microphone with noise suppression function
By combining a dual-diaphragm structure and an ANC sensor, the microphone achieves effective noise suppression and improved speech clarity in noisy environments, solving the problems of poor noise suppression and speech distortion in existing microphones under complex conditions.
Patent Information
- Application Number
- CN202520163751.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing noise suppression microphones struggle to effectively distinguish target sounds from background noise in noisy environments, resulting in poor suppression performance, and complex processing can lead to speech distortion.
The microphone features a dual-diaphragm structure, with inner and outer diaphragms connected by a precision spring system. Combined with an ANC sensor and a sound-absorbing buffer layer, it achieves separation of noise and speech signals and physical noise reduction.
Effectively suppresses noise in complex environments, improves speech clarity, avoids speech distortion, and ensures microphone stability and noise reduction performance in different environments.
Smart Images
Figure CN223859208U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to microphone technical field especially microphone with noise suppression function. BACKGROUND
[0002] In today's highly developed information age, whether it is daily communication, or professional recording production, clear and accurate sound transmission is particularly important, with the continuous progress of science and technology, microphone as the key equipment of sound collection, its function and performance are also upgrading, in the field of audio communication and recording, the microphone with noise suppression function gradually becomes the mainstream product of the market, this kind of microphone effectively reduces the interference of background noise to target sound through built-in electronic components and algorithms, improves the intelligibility and recognition of voice, however, the structure of the existing noise suppression microphone is not perfect, and there are still some deficiencies and drawbacks in practical application.
[0003] In noisy public environment or outdoor environment, the existing noise suppression microphone often has difficulty in accurately distinguishing target sound from background noise, and the suppression effect of some types of noise is not ideal, which affects the intelligibility of voice signal, secondly, the structure of the existing microphone often needs to process the input audio signal complexly, although this processing can reduce the noise level, but it may also cause voice distortion, such as tone change, pitch distortion, etc. UTILITY MODEL CONTENTS
[0004] The utility model provides a microphone with noise suppression function, solve the problem that the existing microphone with noise suppression function is not good in noise suppression effect under complex environment and voice distortion.
[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0006] A microphone with noise suppression function, including base, the bottom side of base is provided with mounting groove, and the inside of mounting groove is provided with support leg through pivot, the top of base is provided with detachable telescopic sleeve, and the inside of telescopic sleeve is provided with telescopic support rod, the top of support rod is provided with mounting block, and the outside of mounting block is provided with adjustable hinged seat, the top of hinged seat is provided with mounting seat, and the inside of mounting seat is provided with microphone body, the outside of microphone body is provided with sound insulation shell, and the sound insulation shell and microphone body are provided with buffer layer and sound insulation layer, the side of sound insulation shell is provided with noise reduction mechanism, and the outside of microphone body is provided with detachable noise reduction cover.
[0007] Preferably, the bottom of telescopic sleeve is provided with threaded column, and the inside of base is provided with threaded hole matched with threaded column and connected movably.
[0008] Preferably, the supporting rod and the telescopic sleeve are provided with matching through holes inside, and the through holes are provided with limiting pins outside, and the supporting rod and the telescopic sleeve are limited and clamped through the limiting pins.
[0009] Preferably, the side surface of one end of the hinge seat is provided with a nut inside, and the side surface of the other end of the hinge seat is provided with a knob bolt matched with the nut, and the knob bolt is connected to the nut inside the mounting block through the hinge seat and is limited and connected.
[0010] Preferably, the noise reduction mechanism comprises an ANC sensor, a first diaphragm, a second diaphragm and a spring, the side surface of one end of the microphone body is provided with the ANC sensor, the inside of the other end of the microphone body is provided with the first diaphragm, and the side surface of the first diaphragm is connected with the second diaphragm through a precision spring to form a noise reduction structure.
[0011] Preferably, the side surface of the microphone body is provided with a threaded hole inside, and the side surface of the noise reduction cover is provided with a threaded block matched with the threaded hole and movably connected.
[0012] Compared with the prior art, the microphone has the advantages that:
[0013] 1. The microphone has a noise suppression function, the side surface of the first diaphragm is connected with the second diaphragm through a precision spring to form a noise reduction structure, a double diaphragm structure is innovatively adopted, the inner and outer two-layer diaphragms are connected through a precision spring system, a differential pressure sensor is formed, the outer diaphragm is more sensitive to environmental noise, and the inner diaphragm is more focused on capturing target voice signals; when environmental noise and target voice act on the microphone at the same time, the sensitivity and response characteristics of the two-layer diaphragms can be adjusted to separate noise and voice signals, and a basis is provided for noise suppression in a complex environment.
[0014] 2. The sound insulation shell and the microphone body are provided with a buffer layer and a sound insulation layer, the buffer layer is composed of an acrylate rubber layer, and additional sound insulation effect is provided, the sound insulation shell is internally provided with the buffer layer and the sound insulation layer, part of noise can be effectively absorbed and reflected, so that the interference of the noise on target voice is reduced, secondly, the supporting leg is installed in the mounting groove through a rotating shaft, the telescopic supporting rod is sleeved in the telescopic sleeve, and the telescopic sleeve is detachable, so that the stability of the microphone in different environments is ensured, and unnecessary noise is avoided.
[0015] 3. The microphone body is provided with an ANC sensor, the sensor can monitor surrounding environmental noise in real time, generate sound waves opposite in phase to the noise, and offset the noise through a physical way, so that the noise reduction effect is further improved, and phenomena such as voice distortion caused by complex audio processing are avoided, and meanwhile, the microphone body is provided with a detachable noise reduction cover, so that noise and voice signals can be preliminarily separated and reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model.
[0018] Figure 3 It is a schematic diagram of the microphone body structure of the utility model.
[0019] Figure 4 It is another perspective schematic diagram of the microphone body structure of the utility model.
[0020] Marked number in the figure: 1, base; 2, mounting groove; 3, rotating shaft; 4, support leg; 5, telescopic sleeve; 6, support rod; 7, mounting block; 8, hinged seat; 9, mounting seat; 10, microphone body; 11, soundproof shell; 12, buffer layer; 13, soundproof layer; 14, noise reduction cover; 15, threaded column; 16, threaded hole; 17, through hole; 18, limit bolt; 19, nut; 20, knob bolt; 21, ANC sensor; 22, first diaphragm; 23, second diaphragm; 24, spring; 25, screw hole; 26, threaded block. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0022] Reference Figures 1-4 The utility model provides a kind of technical scheme: a microphone with noise suppression function, including base 1, base 1 lower side is provided with mounting groove 2, and mounting groove 2 is installed with support leg 4 by rotating shaft 3 inside, base 1 top is provided with detachable telescopic sleeve 5, and telescopic sleeve 5 is provided with telescopic support rod 6 inside, and support rod 6 top is provided with mounting block 7, and mounting block 7 outside is provided with adjustable hinged seat 8, and hinged seat 8 top is provided with mounting seat 9, improve the adaptability of support structure, guarantee the stability of whole, and mounting seat 9 is provided with microphone body 10 inside, microphone body 10 outside is provided with soundproof shell 11, and soundproof shell 11 and microphone body 10 between are provided with buffer layer 12 and soundproof layer 13, buffer layer 12 is composed of acrylate rubber layer, provide additional soundproof effect, effectively suppress noise, soundproof shell 11 side is provided with noise reduction mechanism, and microphone body 10 outside is provided with detachable noise reduction cover 14.
[0023] Reference Figure 1 , Figure 2The bottom of the telescopic sleeve 5 is provided with a threaded column 15, and the inside of the base 1 is provided with a threaded hole 16 matched with the threaded column 15 in a movable connection; the support rod 6 and the telescopic sleeve 5 are provided with matched through holes 17, and the outside of the through hole 17 is provided with a limiting pin 18, and the support rod 6 and the telescopic sleeve 5 are limitedly connected through the limiting pin 18; the inside of the one end of the hinged seat 8 is provided with a nut 19, and the side of the other end of the hinged seat 8 is provided with a knob bolt 20 matched with the nut 19, and the knob bolt 20 penetrates the hinged seat 8 and is connected to the nut 19 in the inside of the mounting block 7 in a limiting connection, so as to ensure the stability of the microphone in different environments and avoid unnecessary noise.
[0024] Referring to Figure 3 , Figure 4 The noise reduction mechanism includes an ANC sensor 21, a first diaphragm 22, a second diaphragm 23, and a spring 24, and the side of the one end of the microphone body 10 is provided with the ANC sensor 21, the inside of the other end of the microphone body 10 is provided with the first diaphragm 22, and the side of the first diaphragm 22 is connected with the second diaphragm 23 through the precise spring 24 to form a noise reduction structure, and a double diaphragm structure is innovatively adopted, the inner and outer diaphragms are connected through the precise spring 24, forming a differential pressure sensor, the outer diaphragm is more sensitive to environmental noise, and the inner diaphragm is more focused on capturing target voice signals, when the environmental noise and the target voice act on the microphone at the same time, the sensitivity and response characteristics of the two diaphragms can be adjusted to separate the noise and the voice signal, and provide a basis for noise suppression in a complex environment; the inside of the side of the microphone body 10 is provided with a threaded hole 25, and the side of the noise reduction cover 14 is provided with a threaded block 26 matched with the threaded hole 25 in a movable connection, so as to preliminarily separate and reduce the noise and the voice signal.
[0025] Specifically, in use, the microphone with the noise suppression function is first installed on the base 1 through the threaded column 15, then the height of the support rod 6 is adjusted through the limiting pin 18, and the angle of the microphone body 10 is adjusted through the hinged seat 8 and the knob bolt 20 matched with the nut 19, and the support legs 4 under the base 1 stably support the microphone body 10 on the ground to avoid unnecessary noise;
[0026] Then, the complex sound in different environments is firstly separated and denoised by the noise reduction cover 14, then the first diaphragm 22 and the second diaphragm 23 adopt the double diaphragm structure, the inner and outer diaphragms are connected through the precise spring 24 system, form a differential pressure sensor, separate the noise and voice signal, the outside buffer layer 12 and the sound insulation layer 13 can effectively absorb and reflect part of the noise, thereby reducing the interference on the target voice, finally the ANC sensor 21 generates the sound wave opposite to the phase of the noise, cancels the noise through the physical way, further improves the denoising effect, and realizes the noise suppression.
[0027] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A microphone having a noise suppression function, comprising a base (1), characterized in that, The bottom of the base (1) is provided with a mounting groove (2), and the inside of the mounting groove (2) is provided with a supporting leg (4) through a rotating shaft (3); the top of the base (1) is provided with a detachable telescopic sleeve (5), and the inside of the telescopic sleeve (5) is sleeved with a telescopic supporting rod (6); the top of the supporting rod (6) is provided with a mounting block (7), and the outside of the mounting block (7) is provided with an adjustable hinged seat (8); the top of the hinged seat (8) is provided with a mounting seat (9), and the inside of the mounting seat (9) is provided with a microphone body (10); the outside of the microphone body (10) is provided with a soundproof shell (11), and the soundproof shell (11) and the microphone body (10) are provided with a buffer layer (12) and a sound insulation layer (13) therebetween; the side of the soundproof shell (11) is provided with a noise reduction mechanism, and the outside of the microphone body (10) is provided with a detachable noise reduction cover (14). The noise reduction mechanism comprises an ANC sensor (21), a first diaphragm (22), a second diaphragm (23) and a spring (24), one end of the microphone body (10) is provided with an ANC sensor (21), and the other end of the microphone body (10) is provided with a first diaphragm (22) inside; the first diaphragm (22) is connected with a second diaphragm (23) through a precision spring (24) on the side to form a noise reduction structure.
2. The microphone having a noise suppression function according to claim 1, characterized by, The bottom of the telescopic sleeve (5) is provided with a threaded column (15), and the inside of the base (1) is provided with a threaded hole (16) matched with the threaded column (15) to be movably connected.
3. The microphone having a noise suppression function according to claim 1, characterized by, The supporting rod (6) and the telescopic sleeve (5) are provided with matched through holes (17) inside, and the outside of the through holes (17) is provided with a limiting latch (18), and the supporting rod (6) and the telescopic sleeve (5) are limitingly clamped through the limiting latch (18).
4. The microphone having a noise suppression function according to claim 1, characterized by, One end of the hinged seat (8) is provided with a nut (19) inside, and the other end of the hinged seat (8) is provided with a knob bolt (20) matched with the nut (19); the knob bolt (20) penetrates the hinged seat (8) and is connected to the nut (19) inside the mounting block (7) to be limitingly connected.
5. The microphone having a noise suppression function according to claim 1, characterized by, The side of the microphone body (10) is provided with a threaded hole (25) inside, and the side of the noise reduction cover (14) is provided with a threaded block (26) matched with the threaded hole (25) to be movably connected.