Voiceprint acquisition device

Abstract

The utility model relates to the technical field of sound processing devices, in particular to a voiceprint acquisition device, which comprises a sound horn for receiving sound, an anti-interference component is arranged outside the sound horn, and the anti-interference component is supported by elastic force to reduce interference of external environment to voiceprint acquisition of the device. The recording head is arranged in the sound horn, a noise reduction assembly is arranged between the recording head and the inner wall of the sound horn, the noise reduction assembly reduces noise transmitted to the recording head when a person inputs voiceprints, the recording head is connected with a fixing part, and the fixing part adjusts the orientation of a horn opening of the sound horn. According to the utility model, the technical problem that the accuracy of voiceprint acquisition is influenced by vibration noise of an external environment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sound processing devices, and more specifically, to a voiceprint acquisition device. Background Art

[0002] Voiceprint acquisition is a technology that collects and records the voice characteristics of a person speaking for identity verification and recognition. As a unique biometric feature, voiceprint can be used as an effective means of identity authentication. When the current devices for voiceprint acquisition are used for voiceprint acquisition, they are easily affected by external environmental interference factors such as noise and vibration, resulting in the need for repeated voiceprint acquisitions to obtain a complete collection.

[0003] The Chinese utility model patent with the patent name "Voiceprint Acquisition and Analysis Device" and the publication number CN219418502U has been publicly disclosed. This patent includes a recorder and a protective cylinder. The protective cylinder has a cylinder body and a sound inlet. A mesh cylinder is movably sleeved outside the cylinder body of the protective cylinder. A sponge cylinder is fixed on the inner wall of the cylinder body of the mesh cylinder. A low-speed motor is fixed at the end of the cylinder body of the protective cylinder. The output shaft of the low-speed motor is fixed to the bottom end of the cylinder body of the mesh cylinder. A covering tube is fitted and sleeved outside the mesh cylinder. An opening aligned with the sound inlet is provided on the covering tube. By combining components such as the protective cylinder, the mesh cylinder, the sponge cylinder, the low-speed motor, and the covering tube, it is more convenient to replace the dust-proof layer between the opening and the sound inlet. However, when voiceprint acquisition is carried out in an actual environment, in order to ensure the accuracy of their own voice collection, the acquisition personnel will frequently touch or hold the outside of the device, making the sound inlet of the device face themselves. Frequent touching of the device by human hands will generate vibrations on the device, causing noise and interfering with the acquisition accuracy of the voiceprint. Summary of the Utility Model

[0004] The purpose of this application is to provide a voiceprint acquisition device, including a sound horn tube for receiving sound and an anti-interference component for preventing external environmental interference with voiceprint acquisition.

[0005] Preferably, an anti-interference component is provided outside the sound horn tube. The anti-interference component is connected to the sound horn tube through an elastic connecting member. A sliding groove is provided at the horn opening of the sound horn tube. The anti-interference component includes a shock-absorbing cover. The sound horn tube and the shock-absorbing cover are matched through the sliding groove. The shock-absorbing cover cannot contact the sound horn tube by deflecting the axis. When the anti-interference component is externally touched or collided, under the action of the elastic connecting member, it does not contact the outer wall of the sound horn tube.

[0006] Preferably, a recording head for voiceprint acquisition is provided inside the sound horn tube. The recording head is connected to the top of a fixing component. The fixing component includes a base box. The base box includes a base box body and a data storage chip therein. The recording head is connected to the data storage chip in the base box through a signal line.

[0007] Preferably, the elastic connecting member is a spring.

[0008] The sound horn tube and the shock-absorbing cover chute are matched. A plurality of springs are arranged between the shock-absorbing cover and the sound horn tube. The springs apply elastic force to support the shock-absorbing cover. A chute is arranged on the outer edge of the opening of the sound horn tube. The outer edge of the opening of the shock-absorbing cover extends outward and protrudes, and is slidably matched with the outer edge chute of the sound horn tube.

[0009] Preferably, the anti-interference component further includes a replaceable shock-absorbing pad. The shock-absorbing pad is arranged on the top of the shock-absorbing cover. The bottom layer of the shock-absorbing pad is an adhesive layer, and the top layer is provided with a plurality of columnar sponges. There are gaps between the columnar sponges; when the shock-absorbing pad is subjected to an external force, the columnar sponges of the shock-absorbing pad contract on the surface of the top layer of the shock-absorbing pad, and the columnar sponges roll between the gaps on its surface.

[0010] Preferably, a noise reduction component is further arranged between the inner walls of the recording head and the sound horn tube. The noise reduction component includes noise reduction cotton and a mesh cover.

[0011] Preferably, the noise reduction cotton is fixed on the inner wall of the sound horn tube, completely wrapping the inner wall of the sound horn tube corresponding to the position of the recording head. The mesh cover is fixed in the inner wall of the sound horn tube, covering the recording head and the noise reduction cotton in the sound horn tube.

[0012] Preferably, the fixing member includes a rotating column.

[0013] Preferably, the top of the rotating column is fixedly connected to the sound pattern acquisition end of the recording head, and the bottom of the rotating column is rotatably connected to the base box.

[0014] The technical solution of the present application has at least the following advantages and beneficial effects:

[0015] By arranging an anti-interference component outside the horn tube and the recording head, the anti-interference component reduces the conduction of vibration through the contraction of the columnar sponges of the shock-absorbing pad at the top, and then offsets the remaining vibration through the elastic force of the spring. No noise is generated when the spring expands and contracts; inside, the noise reduction component reduces the noise towards the recording head in the horn tube when the personnel input the sound pattern, increasing the accuracy of the sound pattern acquisition of the recording head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present utility model.

[0017] Figure 2 It is a sectional structural schematic diagram of the present utility model.

[0018] Figure 3 It is a sectional structural schematic diagram of the present utility model from another angle.

[0019] Figure 4 For Figure 2 the enlarged structural schematic diagram of A in

[0020] In the figure: 1 - base box; 2 - rotating column; 3 - recording head; 4 - sound horn; 5 - spring; 6 - shock-absorbing cover; 7 - shock-absorbing pad; 8 - noise-reducing cotton; 9 - mesh cover. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. If terms such as "center", "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this application is normally placed. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this application. It should also be noted that unless otherwise clearly defined and limited, if terms such as "set", "installed", "connected" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0023] Embodiment

[0024] Please refer to Figures 1-4 , the present invention provides a voiceprint acquisition device, including a recording head 3, a sound horn 4, and an anti-interference component.

[0025] The sound horn 4 is in the shape of a horn, and the horn opening faces the sound collection place. The recording head 3 is coaxially fixed inside the sound horn 4. The recording head 3 collects the sound transmitted from the outside into the inside for voiceprint collection.

[0026] An anti-interference component is arranged around the outside of the sound horn 4 in a horn-shaped imitation of the sound horn 4. The anti-interference component is connected to the outer wall of the sound horn 4 and is supported by elasticity. The anti-interference component reduces the interference of the external environment on the sound pattern collection of the device. When the anti-interference component is touched or collided externally, the outside of the anti-interference component is stressed. First, the vibration will be reduced by the shock-absorbing layer at the top of the anti-interference component, and then the remaining force applied externally will be offset by the elasticity and will not be transmitted to the sound horn 4, interfering with the sound pattern collection of the recording head 3 inside the sound horn 4.

[0027] Furthermore, the anti-interference component includes a spring 5, a shock-absorbing cover 6, and a shock-absorbing pad 7.

[0028] One end of the spring 5 is fixedly connected to the outer wall of the sound horn 4, and the other end is connected to the inner wall of the shock-absorbing cover 6. At least two springs 5 are arranged horizontally between the sound horn 4 and the shock-absorbing cover 6, and at least four springs 5 are arranged circumferentially around the axis of the sound horn 4. The spring 5 applies an elastic force to support the shock-absorbing cover 6 and offsets the vibration force conducted from the shock-absorbing cover 6. The expansion and contraction of the spring 5 will not affect the stationary sound horn 4.

[0029] A chute is provided at the circular outer edge of the horn opening of the sound horn 4, and the horn conical surface of the sound horn 4 is the sound collection part for the outside; the shock-absorbing cover 6 is horn-shaped and completely wraps the recording head 3 and the sound collection part of the sound horn 4. The circular outer edge of the horn-shaped opening of the shock-absorbing cover 6 extends outwards and just slidably mates with the outer edge chute of the sound horn 4. When different positions on the outer wall of the shock-absorbing cover 6 are subjected to external forces, if there is no chute of the sound horn 4 to limit the movement of the shock-absorbing cover 6, the shock-absorbing cover 6 may be severely deflected on one side due to excessive force at a certain end point, causing the inner wall of one side of the shock-absorbing cover 6 to touch the outer wall of the sound horn 4, generating noise and affecting the sound pattern collection. Therefore, by setting the matching of the chutes of the sound horn 4 and the shock-absorbing cover 6, restricted by the chute plane, when the shock-absorbing cover 6 receives excessive force at the end point, it cannot deflect its axis and can only move circularly as a whole through the base box 003 under the restriction of the chute plane on the outer edge of the sound horn 4 without touching the sound horn 4.

[0030] A shock-absorbing pad 7 is covered on the outer wall of the top of the shock-absorbing cover 6. The shock-absorbing pad 7 is adhered to the shock-absorbing cover 6 and can be directly torn off for quick replacement. The adhesive layer of the shock-absorbing pad 7 is of sponge structure. Several cylindrical soft sponges are arranged on the outer surface of the adhesive layer. There are gaps between the columnar sponges, and it completely covers the outer surface of the adhesive layer (the outer surface structure of polar fleece clothing in the clothing field can be referred to). When a certain endpoint of the shock-absorbing pad 7 is subjected to an external impact force, the shock-absorbing pad 7 absorbs part of the impact force through the sponge-like adhesive layer. However, when the single adhesive layer is subjected to continuous impact forces (such as the serrated structure rubbing the outer surface of the shock-absorbing pad 7), the adhesive layer of the shock-absorbing pad 7 cannot effectively absorb the impact force. Therefore, the columnar sponge structure on the adhesive layer is provided. When the tooth surface rubs the shock-absorbing pad 7, the columnar sponges can freely roll between their gaps through their own contraction and the columnar surface, so that the tooth surface cannot directly contact the adhesive layer, reducing the impact force generated externally, effectively reducing the conduction effect of the external force, and preventing the noise generated by the external force from affecting the voiceprint collection effect of the device.

[0031] In some embodiments, a noise reduction component is further included in a voiceprint collection device. The noise reduction component is located between the inner walls of the recording head 3 and the sound horn tube 4.

[0032] The noise reduction component includes a noise reduction cotton 8 and a mesh cover 9.

[0033] The noise reduction cotton 8 is fixed on the trumpet-shaped inner wall of the sound horn tube 4, completely wrapping the inner wall of the sound horn tube 4 corresponding to the recording head 3. The noise reduction cotton 8 is of mesh structure. The mesh cover 9 is fixed in the inner wall of the sound horn tube 4, covering the recording head 3 and the noise reduction cotton 8 in the sound horn tube 4. The mesh cover 9 is of mesh structure. When collecting the voiceprint of a person, the base box 007 structure of the mesh cover 9 can isolate saliva, sundries, etc. when the person is speaking from contacting the recording head 3 and affecting the voiceprint collection. When the sound is conducted, it will also be conducted into the sound horn tube 4. Because the recording head 3 is fixed on the sound horn tube 4, the sound conducted in the sound horn tube 4 will also affect the voiceprint collection of the recording head 3. Therefore, the noise reduction cotton 8 attached to the sound horn tube 4 reduces the sound conduction in the sound horn tube 4 and improves the voiceprint collection accuracy of the recording head 3.

[0034] In some embodiments, a fixing component is further included in a voiceprint collection device. The fixing component collects, stores and processes the voiceprint data and adjusts the orientation of the horn mouth of the sound horn tube 4.

[0035] The fixing component includes a base box 1 and a rotating column 2.

[0036] The bottom frustum of the rotating column 2 is rotatably connected to the base box 1. The base box 1 includes a base box body and a data storage chip therein. The real-time voiceprint data collected by the recording head 3 is transmitted through the signal line inside the rotating column 2 to the data storage chip in the base box 1 for storage. The signal line connecting the recording head 3 and the base box 1 extends from the end connecting rod of the voiceprint collection of the recording head 3 and enters the inside of the rotating column 2. There is a hollow line duct at the central axis inside the rotating column 2. The signal line passes through the line duct in the rotating column 2, extends into the inside of the base box 1 connected to the rotating column 2, and is connected to the data storage chip inside the base box 1 to achieve voiceprint signal transmission.

[0037] So far, the embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions of the present invention based on the above description. The scope of the present invention is defined by the appended claims.

Claims

1. A voiceprint collection device, characterized in that: It includes a sound speaker (4) for receiving sound and an anti-interference component for preventing the external environment from interfering with the voiceprint collection; An anti-interference component is arranged on the outside of the sound horn (4), and the anti-interference component is connected to the sound horn (4) via an elastic connecting piece. A slide groove is arranged at the speaker opening of the sound horn (4). The anti-interference component includes a shock-absorbing cover (6). The sound horn (4) and the shock-absorbing cover (6) are matched via the slide groove, and the shock-absorbing cover (6) cannot deflect its axis to contact the sound horn (4); when the anti-interference component is touched or collided with from the outside, it will not contact the outer wall of the sound horn (4) under the action of the elastic connecting piece.

2. A voiceprint collection device according to claim 1, characterized in that: A recording head (3) for collecting voiceprints is arranged inside the sound speaker (4); the recording head (3) is connected to the top of a fixed component; the fixed component includes a base box (1); the base box (1) includes a base box body and a data storage chip therein; the recording head (3) is connected to the data storage chip in the base box (1) via a signal line.

3. A voiceprint collection device according to claim 1, characterized in that: The elastic connecting member is a spring (5); The sound horn (4) and the shock absorbing cover (6) have matching sliding grooves, a plurality of springs (5) are arranged between the shock absorbing cover (6) and the sound horn (4), the springs (5) exert elastic force on the shock absorbing cover (6) to support it, a sliding groove is arranged on the outer edge of the opening of the sound horn (4), the outer edge of the opening of the shock absorbing cover (6) extends outward and slidably matches with the outer edge sliding groove of the sound horn (4).

4. A voiceprint collection device according to claim 3, characterized in that: The anti-interference component also includes a quick-change shock-absorbing pad (7), which is arranged on the top of the shock-absorbing cover (6), the bottom layer of the shock-absorbing pad (7) being an adhesive layer, and the top layer being provided with a plurality of columnar sponges, with gaps between the columnar sponges; when the shock-absorbing pad (7) is subjected to external force, the columnar sponges of the shock-absorbing pad (7) shrink on the surface of the top layer of the shock-absorbing pad (7), and the columnar sponges roll between the gaps on its surface.

5. The voiceprint collection device according to claim 1, characterized in that: It also includes a noise reduction component arranged between the recording head (3) and the inner wall of the sound speaker (4), and the noise reduction component includes noise reduction cotton (8) and a mesh cover (9); The noise reduction cotton (8) is fixed on the inner wall of the sound horn (4) to completely wrap the inner wall of the sound horn (4) corresponding to the position of the recording head (3); the mesh cover (9) is fixed in the inner wall of the sound horn (4) to cover the recording head (3) and the noise reduction cotton (8) in the sound horn (4).

6. A voiceprint collection device according to claim 2, characterized in that: The fixing component comprises a rotating column (2); The top of the rotating column (2) is fixedly connected to the voiceprint collection end of the recording head (3), and the bottom of the rotating column (2) is rotatably connected to the base box (1).

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