Test head equipment for testing sound insulation effect of voice
By designing a test head device to simulate different user vocal conditions and facial movements, the problem of inaccurate testing of the sound insulation effect of electronic noise-canceling masks in existing technologies has been solved, and more accurate test results have been achieved.
Patent Information
- Application Number
- CN202422683313.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Existing technologies cannot effectively simulate the impact of different user vocal conditions and facial movements on the sound insulation effect of electronic noise-canceling masks, resulting in inaccurate test results.
Design an experimental human head device comprising a skeletal part and a skull part, with a movable component installed in the lower jaw, an adjustable component connected to the skull part, a speaker device inside the oral cavity, and an adjustable facial pad and a human-shaped headgear to simulate different vocal conditions and facial movements.
It can flexibly simulate the facial movements of a person when speaking, providing diverse and comprehensive testing conditions, and improving the accuracy and comprehensiveness of testing electronic silencer masks.
Smart Images
Figure CN223565633U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to acoustic test technology, more particularly to a test human head device for testing speech sound insulation effect. BACKGROUND
[0002] For the electronic sound elimination mask products with sound insulation capacity in the market, the sound insulation effect is the core index of the products, and people exist very different sound conditions from whispering to shouting in real life, once the sound condition changes, the acoustic parameters such as the fitting pressure of the sound elimination mask and the face, the volume of the acoustic cavity in the mask, the acoustic resistance and the acoustic reactance will change greatly, therefore, more face activity factors need to be considered in the test process, and at the present stage, almost all human head devices in the industry mostly test the near-field sound field capacity generated by the near-field acoustic equipment, and there is no human head device for testing the sound insulation performance of the products under the same sound condition of the human.
[0003] Therefore, how to provide a test jig for simulating different sound conditions and face activities of users is an urgent problem to be solved. UTILITY MODEL CONTENT
[0004] The main purpose of the utility model is to provide a test human head device for testing speech sound insulation effect, aiming at solving the technical problem of how to provide a test jig for simulating different sound conditions and face activities of users.
[0005] In order to realize the above-mentioned utility model purpose, the first aspect of the present application provides a test human head device for testing speech sound insulation effect, comprising: a skeleton part, the skeleton part comprises: a lower jaw part, the lower jaw part is provided with a movable assembly for realizing the movement of the lower jaw part; a skull part, the skull part is connected with an adjusting assembly on the side close to the inner wall of the oral cavity of the lower jaw part, for controlling the size of the opening amount, and a loudspeaker device with a sweep frequency signal is also installed in the oral cavity, for simulating human voice.
[0006] Further, the lower jaw part comprises a temporomandibular joint, and the movable assembly is installed on the temporomandibular joint.
[0007] Further, the movable assembly comprises an L-shaped hinge, and the hinge shaft of the L-shaped hinge is matched and installed with the movable position of the temporomandibular joint.
[0008] Further, the adjusting assembly comprises a threaded rotating rod, one end of the threaded rotating rod is rotationally connected with the skull part, the other end of the threaded rotating rod is threadedly connected with one side of the lower jaw part and passes through the lower jaw part, and the end of the threaded rotating rod passing out of the lower jaw part is connected with a hand-held part.
[0009] Further, a face pad layer is arranged on the surface of the bone part, and the thickness of the face pad layer is adjustable to simulate different user features.
[0010] Further, the face pad layer is coated with a human head cover.
[0011] Further, the material of the human head cover comprises silica gel.
[0012] Beneficial effects:
[0013] The utility model discloses a movable adjusting component is installed to the lower jaw part of the experimental human head equipment and the inside oral cavity adjustment component is connected cranium and lower jaw part, and the movable adjusting property of the whole lower jaw part of experiment can simulate the face activity state of person when sounding flexibly, and the built-in loudspeaker device with sweep frequency signal in oral cavity can simulate the pronunciation of different audio of person, and the change of whole face under different pronunciation situation is realized together with adjustment component, and it provides the diverse, comprehensive test condition for testing electronic silencing mask. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the structural schematic drawing of the embodiment of the utility model testing voice sound insulation effect's experimental human head equipment;
[0015] Among them: 1, lower jaw part;2, cranium;3, L hinge;4, screw rod;
[0016] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the embodiment. DETAILED DESCRIPTION
[0017] It should be understood that the specific embodiments described herein are merely intended to explain the utility model, and are not used to limit the utility model.
[0018] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise specifically limited.
[0019] In the description of the utility model, it should be explained that, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.
[0020] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0021] Reference Figure 1 The utility model proposes a kind of test speech sound insulation effect's test human head equipment, comprising: skeleton part, the skeleton part includes: jaw part 1, movable assembly is installed in the jaw part 1, for realizing jaw part 1 movement;Skull part 2, the skull part 2 is connected with the side of the jaw part 1 close to oral cavity inner wall with adjusting assembly, for controlling the size of opening amount, and the oral cavity is also installed with the loudspeaker device with sweep frequency signal, for simulating human voice.
[0022] In the embodiment, the bone part is combined by the lower jaw part 1 and the skull part 2, wherein the lower jaw part 1 is installed with a movable assembly for realizing the stable movable connection and the movement of the lower jaw part 1 relative to the skull part 2, and the inside of the oral cavity is provided with an adjusting assembly for connecting the skull part 2 and the lower jaw part 1, for controlling the size of the opening amount, and through the adjusting assembly, the opening and closing degree of the oral cavity can be simulated, and then the sound propagation and the fitting sound insulation effect of the mask are affected, and in addition, the oral cavity is also provided with a loudspeaker device with a sweep signal for simulating the human voice. The loudspeaker device can emit sound signals with different frequencies, which change in the range from bass to treble. In this way, the sound effect of the human body at different tones and pitches can be simulated; wherein the adjusting assembly can be manually adjusted through the handheld part, and can also be automatically adjusted through the driving device, and in the case of automatic adjustment, the audio size of the loudspeaker device is associated, and the opening and closing adjustment of the adjusting assembly is controlled by the required audio size, wherein the adjustment signal of the adjusting assembly can be remotely controlled and adjusted by the user, and can also be associated with the audio size of the loudspeaker device, and then triggered through the communication connection.
[0023] In an embodiment, the lower jaw part 1 includes a temporomandibular joint, and the movable assembly is installed on the temporomandibular joint.
[0024] In the embodiment, the lower jaw part 1 includes a temporomandibular joint, and the movable assembly is installed on the temporomandibular joint. This movable assembly can realize the stable movable connection of the lower jaw part 1 relative to the skull part 2, so as to simulate the movement of the human lower jaw, support the movement of the lower jaw part 1, and through this design, the test head device can more accurately simulate the opening and closing of the oral cavity and the movement state of the lower jaw, so as to evaluate the performance and quality of the speech sound insulation effect.
[0025] In an embodiment, the movable assembly includes an L-shaped hinge, and the hinge shaft of the L-shaped hinge is matched and installed with the movable position of the temporomandibular joint.
[0026] In the embodiment, the movable component comprises an L-shaped hinge, the hinge shaft of which is matched with the movable position of the temporomandibular joint and is installed, wherein the L-shaped hinge is composed of two vertical rods connected by a hinge shaft, in the embodiment, one rod of the L-shaped hinge is connected to the lower jaw part 1, and the other rod is connected to the skull part 2, and the main body of the rod is fixedly connected to the contact surface, specifically, one rod of the L-shaped hinge is connected to the lower jaw part 1, which can simulate the movement of the lower jaw part 1, and the hinge shaft is matched with the movable position of the temporomandibular joint and is fixed on the skull part 2 to ensure stable movement connection, through the design, the L-shaped hinge can provide the movable support of the lower jaw part 1, simulate the opening and closing movement of the lower jaw part 1 during human voice production, and the test head device can more accurately simulate the opening degree of the oral cavity by means of the L-shaped hinge, thereby affecting the production and propagation of sound.
[0027] In an embodiment, the adjusting component comprises a threaded rotating rod 4, one end of the threaded rotating rod 4 is rotatably connected to the skull part 2, the other end of the threaded rotating rod 4 is threadedly connected to one side of the lower jaw part 1 and passes through the lower jaw part 1, and the end passing out of the lower jaw part 1 is connected to a hand-held part.
[0028] In the embodiment, the adjusting component comprises a threaded rotating rod 4, one end of the threaded rotating rod 4 is rotatably connected to the skull part 2, the other end of the threaded rotating rod 4 is threadedly connected to one side of the lower jaw part 1 and passes through the lower jaw part 1, and the end passing out of the lower jaw part 1 is connected to a hand-held part.
[0029] In an embodiment, the surface of the bone part is provided with a face pad layer, the thickness of the face pad layer is adjustable, and is used for simulating different fatness characteristics of users.
[0030] In the embodiment, the face pad layer is provided on the surface of the bone part, and the real face shape of a person can be better simulated by providing the face pad, and the face shape and fatness characteristics of a person can be adjusted by the corresponding adjustment of the face pad layer, which is beneficial to simulate the wearing process of different audience users of the mask and obtain more accurate experimental data.
[0031] In an embodiment, the face pad layer is coated with a humanoid head cover.
[0032] In the embodiment, the presence of the humanoid head cover can further enhance the fixation of the face pad layer and ensure the accuracy and stability of the test.
[0033] In an embodiment, the material of the mannequin head cover comprises silicone.
[0034] In the present embodiment, the material of the mannequin head cover is selected as silicone because silicone is relatively close to the acoustic transmission performance of human skin and subcutaneous tissue in acoustics, silicone has certain acoustic transmission performance, can better simulate the sound transmission of the human body, when the acoustic characteristics need to be considered in the test, using silicone as the material of the head cover can more accurately restore the sound conduction process in the head area, so that more real and accurate acoustic experimental data can be obtained, so that the reliability of the experimental results can be ensured.
[0035] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. A test artificial head device for testing the sound insulating effect of a voice, characterized in that, The utility model relates to a human head model, comprising: a skeleton part, the skeleton part comprising: a lower jaw part, the lower jaw part being provided with a movable assembly for realizing the movement of the lower jaw part; a skull part, the skull part being connected with the lower jaw part on the side close to the inner wall of the oral cavity and provided with an adjusting assembly for controlling the size of the opening, and the oral cavity is further provided with a speaker with a sweep signal for simulating human voice.
2. The artificial head device for testing the sound-insulating effect of a voice according to claim 1, characterized in that, The lower jaw part comprises a temporomandibular joint, and the temporomandibular joint is provided with a movable assembly.
3. The artificial head device for testing the sound-insulating effect of a voice according to claim 2, characterized in that, The movable assembly comprises an L-shaped hinge, and the hinge shaft of the L-shaped hinge is matched and installed with the movable position of the temporomandibular joint.
4. The artificial head device for testing the sound-insulating effect of a voice according to claim 1, characterized in that, The adjusting assembly comprises a threaded rotating rod, one end of the threaded rotating rod being rotationally connected with the skull part, the other end of the threaded rotating rod being threadedly connected with one side of the lower jaw part and passing through the lower jaw part, and the end passing out of the lower jaw part being connected with a hand-held part.
5. The artificial head device for testing the sound-insulating effect of a voice according to claim 1, characterized in that, The surface of the skeleton part is provided with a face pad layer, the thickness of the face pad layer being adjustable for simulating the characteristics of users with different body shapes.
6. A test artificial head device for testing the sound insulating effect of a voice according to claim 5, characterized in that The face pad layer is externally coated with a human head cover.
7. The artificial head device for testing the sound-insulating effect of a voice according to claim 6, characterized in that The material of the human head cover comprises silicone.