A three-dimensional sound ray analysis method and system based on a parametric platform

Abstract

The present invention relates to a three-dimensional sound ray analysis method and system based on a parameterized platform, comprising: defining the positions of a sound source point, a receiving surface, and a reflecting surface in a three-dimensional building model; the sound source point is one or more points defined according to coordinates; the position of the receiving surface is determined according to the position of a curved surface where an auditorium is located; the position of the reflecting surface is the position of a curved surface where a wall or ceiling inside the building reflects sound; setting horizontal and vertical sound ray densities according to analysis accuracy requirements; generating effective reflected sound rays in the three-dimensional model according to the positions of the sound source point and the reflecting surface and the sound ray density; determining effective sound rays based on the intersection of the effective reflected sound rays and the receiving surface; and displaying the sound ray coverage area in the receiving surface based on the position of the effective sound rays; using curved surfaces instead of planes for analysis, thereby greatly improving analysis accuracy, and using the same platform with architectural designers, thereby greatly improving the interactive design efficiency between acoustic engineers and architectural designers.

Description

Technical Field

[0001] The present invention relates to the technical field of architectural acoustic design, and in particular to a three-dimensional sound ray analysis method and system based on a parameterized platform. Background Art

[0002] With the development of digital technology in the field of architectural design, interior special-shaped surfaces have been widely used in architectural design. Complex special-shaped curved surfaces are favored by architects and interior designers because of their streamlined, soft, light and dynamic characteristics.

[0003] In performing arts buildings primarily designed for auditory function or with acoustical requirements, the quality of their sound design is often a decisive factor in evaluating the architectural design. Indoor sound quality is determined by the spatial and temporal distribution of direct and reflected sound within the auditorium. The ray method is a widely used approach in architectural acoustic design. This involves analyzing the auditorium's shape and, based on the results, adjusting the side walls and ceiling to achieve the optimal spatial and temporal distribution of direct and reflected sound within the auditorium.

[0004] Traditional two-dimensional acoustic ray analysis is mostly performed on single sections and planes, rather than analyzing the entire three-dimensional space. The results are limited and cannot accurately represent the entire three-dimensional space. Currently, three-dimensional acoustic ray analysis also has certain limitations. The curved surfaces of the model are formed by multiple planes. For surfaces with multiple curvatures, errors will be generated when performing acoustic ray analysis in space. Furthermore, due to the lack of collaboration with architects on the same design platform, interactive design is cumbersome, time-consuming, and inefficient. Optimization results are often represented using CAD sections and planes, which cannot accurately represent changes in curvature in three-dimensional space. Summary of the Invention

[0005] In response to the technical problems existing in the prior art, the present invention provides a three-dimensional sound ray analysis method and system based on a parametric platform, which makes up for the shortcomings of traditional two-dimensional and three-dimensional sound ray analysis. It uses curved surfaces instead of planes for analysis, greatly improving the analysis accuracy. Moreover, it is on the same platform as architectural designers, greatly improving the interactive design efficiency between acoustic engineers and architectural designers.

[0006] According to a first aspect of the present invention, a three-dimensional acoustic ray analysis method based on a parameterized platform is provided, comprising:

[0007] Step 1: Define the locations of the sound source, receiving surface, and reflecting surface in the three-dimensional building model;

[0008] The sound source point is one or more points defined by coordinates; the position of the receiving surface is determined according to the position of the curved surface where the auditorium is located; the position of the reflecting surface is the position of the curved surface where the wall or ceiling inside the building reflects the sound;

[0009] Step 2: Set the horizontal and vertical sound line density according to the analysis accuracy requirements;

[0010] Step 3: Generate effective reflected sound rays in the three-dimensional model based on the positions of the sound source point and the reflecting surface and the sound ray density; determine effective sound rays based on the intersection of the effective reflected sound rays and the receiving surface; and display the sound ray coverage area in the receiving surface based on the position of the effective sound rays.

[0011] On the basis of the above technical solution, the present invention can also make the following improvements.

[0012] Optionally, the location of the sound source point is defined according to functional characteristics of the building.

[0013] Optionally, the process of determining the position of the receiving surface according to the position of the curved surface where the auditorium is located includes:

[0014] The vertical distance between the receiving surface and the auditorium is set according to the viewing mode, and the curved surface obtained by adding the vertical distance to the position of the curved surface where the auditorium is located is determined as the receiving surface.

[0015] Optionally, the walls inside the building that reflect sound include side walls and a suspended ceiling.

[0016] Optionally, in step 3, the effective reflected sound rays are generated respectively according to the positions of the sound source point and each reflecting surface;

[0017] The process of generating the effective reflected sound line according to the position of the sound source point and any selected reflecting surface includes:

[0018] Step 301, taking the reflecting surface as the center, generating a point array in the normal direction of the reflecting surface according to the sound line density;

[0019] Step 302: Draw a perpendicular line along the normal direction on the point array, and use the intersection of the perpendicular line and the reflecting surface as the reflection point;

[0020] Step 303: Connect the sound source point and the reflection point to generate an incident sound ray. If the number of intersections between the incident sound ray and the reflection surface is 1, the incident sound ray is determined to be a valid incident sound ray; otherwise, it is determined to be an invalid sound ray.

[0021] Step 304: generating a tangent plane of the reflection point relative to the reflection surface with the reflection point corresponding to the effective incident sound ray as the center, and generating a virtual sound source corresponding to the sound source with the tangent plane as the symmetry plane;

[0022] Step 305 : Connect the virtual sound source and the reflection point and extend the line to form a reflected sound ray. If the number of intersections between the reflected sound ray and the reflection surface is 1, the reflected sound ray is determined to be a valid reflected sound ray; otherwise, it is determined to be an invalid sound ray.

[0023] Optionally, the process of determining the effective sound ray based on the intersection of the effective reflected sound ray and the receiving surface in step 3 includes:

[0024] The effective reflected sound line is extended. When the extended reflected sound line intersects the receiving surface, the effective reflected sound line is determined to be an effective sound line; when the extended reflected sound line does not intersect the receiving surface, the effective reflected sound line is determined to be an invalid sound line.

[0025] Optionally, the process of displaying the sound ray coverage area in the receiving surface based on the position of the effective sound ray in step 3 includes:

[0026] Spherical receiving points are formed at the intersections of the extended reflected sound lines and the receiving surface, and all the receiving points constitute the sound line coverage area.

[0027] Optionally, after obtaining the sound ray coverage area in step 3, the step further includes: judging whether the building shape is reasonable based on the sound ray coverage area and the receiving surface, and performing an optimization decision.

[0028] According to a second aspect of the present invention, there is provided a three-dimensional sound ray analysis system based on a parameterized platform, comprising: a model generation module, a sound ray density setting module, and a sound ray coverage area generation module;

[0029] The model generation module is used to define the positions of the sound source point, the receiving surface and the reflecting surface in the three-dimensional building model;

[0030] The sound source point is one or more points defined by coordinates; the position of the receiving surface is determined according to the position of the curved surface where the auditorium is located; the position of the reflecting surface is the position of the curved surface where the wall or ceiling inside the building reflects the sound;

[0031] The sound line density setting module is used to set the sound line density in the horizontal and vertical directions according to the analysis accuracy requirements;

[0032] The sound ray coverage area generation module is configured to generate effective reflected sound rays in the three-dimensional model based on the positions of the sound source point and the reflecting surface and the sound ray density, determine effective sound rays based on the intersection of the effective reflected sound rays and the receiving surface, and display the sound ray coverage area in the receiving surface based on the position of the effective sound rays.

[0033] The present invention provides a three-dimensional sound ray analysis method and system based on a parametric platform. The method takes the relationship between the shape of the indoor ceiling, side walls and the auditorium of a performing arts building as the research object, takes into account the coverage area of ​​the indoor sound source reflected from the ceiling and side walls to the auditorium after the sound is emitted, provides a basis for optimizing the shape of the ceiling and side walls, and makes the design of the indoor ceiling and side walls of the building more reasonable; it overcomes the shortcomings and limitations of traditional two-dimensional sound rays that can only analyze a single plane, makes it possible to analyze sound rays reflected from special-shaped curved surfaces, and the analysis results are closer to the actual situation; the analysis is performed based on Rhino software, and its surface is a smooth NURBS surface rather than a mesh surface fitting, so the analysis results are more accurate; and it is on the same platform as the architectural design, which greatly improves the interactive design efficiency between acoustic engineers and architectural designers, assists acoustic engineers and architects in making design decisions, and has high practical value; it facilitates the interactive design between acoustic designers and architectural designers, and improves work efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A flowchart of a three-dimensional sound ray analysis based on a parametric platform provided by the present invention;

[0035] FIG2( a ) is a schematic diagram of a photograph of an example of a building with a special-shaped curved ceiling according to an embodiment of the present invention;

[0036] FIG2( b ) is a schematic diagram of a photograph of an example of a building as a side wall according to an embodiment of the present invention;

[0037] Figure 3 Schematic diagram of parameter analysis provided by an embodiment of the present invention;

[0038] Figure 4 Schematic diagram of the reflection surface lattice, intersection points and virtual sound sources provided by an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of reflected sound rays provided by an embodiment of the present invention;

[0040] Figure 6 A schematic diagram of a three-dimensional model provided by an embodiment of the present invention;

[0041] Figure 7 A schematic diagram of the three-dimensional acoustic analysis effect of a suspended ceiling provided by an embodiment of the present invention;

[0042] Figure 8 A schematic diagram of the three-dimensional sound ray analysis effect of the side wall provided by an embodiment of the present invention;

[0043] Figure 9 This is a structural block diagram of a three-dimensional sound ray analysis system based on a parameterized platform provided by the present invention. DETAILED DESCRIPTION

[0044] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0045] Figure 1 A flow chart of an embodiment of a three-dimensional sound ray analysis method based on a parameterized platform provided by the present invention is shown as follows: Figure 1 As shown, the analysis method includes:

[0046] Step 1: Define the locations of the sound source, receiving surface, and reflecting surface in the three-dimensional building model.

[0047] The sound source point is one or more points defined by coordinates; the position of the receiving surface is determined by the position of the curved surface where the auditorium is located; the position of the reflecting surface is the position of the curved surface where the wall and ceiling inside the building reflect the sound.

[0048] Step 2: Set the horizontal and vertical sound line density according to the analysis accuracy requirements.

[0049] Step 3: Generate effective reflected sound rays in the three-dimensional model based on the positions of the sound source point and the reflecting surface and the sound ray density, determine the effective sound rays based on the intersection of the effective reflected sound rays and the receiving surface, and display the sound ray coverage area in the receiving surface based on the position of the effective sound rays.

[0050] The present invention provides a three-dimensional acoustic ray analysis method based on a parametric platform, which makes up for the shortcomings of traditional two-dimensional and three-dimensional acoustic ray analysis. It uses curved surfaces instead of flat surfaces for analysis, greatly improving the analysis accuracy. It also shares the same platform with architectural designers, greatly improving the interactive design efficiency between acoustic engineers and architectural designers.

[0051] Example 1

[0052] Embodiment 1 of the present invention is an embodiment of a three-dimensional acoustic ray analysis method based on a parametric platform. FIG2(a) and FIG2(b) are schematic photographs of an example of a building with a special-shaped curved ceiling and side walls according to the embodiment of the present invention. Figure 3 The data analysis diagram of the genetic algorithm provided by the embodiment of the present invention is combined with Figure 1-Figure 3 It can be seen that embodiments of the analysis method include:

[0053] Step 1: Define the locations of the sound source, receiving surface, and reflecting surface in the three-dimensional building model.

[0054] The sound source point is one or more points defined by coordinates; the position of the receiving surface is determined by the position of the curved surface where the auditorium is located; the position of the reflecting surface is the position of the curved surface where the wall and ceiling inside the building reflect the sound.

[0055] In specific implementation, the 3D model of the original building can be imported, such as Figure 6 Shown is a schematic diagram of a three-dimensional model provided by an embodiment of the present invention.

[0056] In a possible embodiment, the location of the sound source point is defined according to functional characteristics of the building.

[0057] The building may be a performing arts building that is primarily for auditory functions or has acoustic requirements. In this embodiment, it is a theater with natural sound performances and is equipped with a lifting orchestra pit.

[0058] The position of the sound source point is defined according to the functional characteristics of the building, that is, a point is established in the model according to the coordinates (X, Y, Z) of the position of the device or musical instrument that emits sound in the functional characteristics of the building. In the theater provided by the embodiment of the present invention, the position of the sound source point is defined as a point 1 meter in front of the center of the stage entrance line and 1.5 meters above the stage surface.

[0059] In a possible embodiment, the process of determining the position of the receiving surface according to the position of the curved surface where the auditorium is located includes:

[0060] The vertical distance between the receiving surface and the auditorium is set according to the viewing mode, and the surface obtained by adding the vertical distance to the position of the auditorium is determined as the receiving surface.

[0061] In a specific implementation, the step surface can be selected as the curved surface where the auditorium is located, and the vertical distance between the receiving surface and the auditorium area is defined as 1.2 meters to simulate the height of a person's ear from the ground when sitting.

[0062] In a possible embodiment, the walls inside the building that reflect sound include side walls and a suspended ceiling.

[0063] Step 2: Set the horizontal and vertical sound line density according to the analysis accuracy requirements.

[0064] In a specific implementation, different sound ray densities may be set according to different analysis accuracy requirements. For example, the number of sound rays in the horizontal direction may be set to 100, and the number of sound rays in the vertical direction may be set to 50.

[0065] Step 3: Generate effective reflected sound rays in the three-dimensional model based on the positions of the sound source point and the reflecting surface and the sound ray density, determine the effective sound rays based on the intersection of the effective reflected sound rays and the receiving surface, and display the sound ray coverage area in the receiving surface based on the position of the effective sound rays.

[0066] In a possible embodiment, in step 3, effective reflected sound rays are generated respectively according to the positions of the sound source point and each reflecting surface.

[0067] In the specific implementation process, each ceiling surface and side wall surface can be selected as a reflection surface in turn, and the early reflection sound from the reflection surface can be analyzed to obtain the entire early reflection sound coverage area provided by all reflection surfaces for the auditorium area. Figure 7 and Figure 8 Shown are schematic diagrams of three-dimensional acoustic ray analysis effects of the suspended ceiling and side walls provided by embodiments of the present invention.

[0068] like Figure 4 The figure shows a schematic diagram of the reflection surface lattice, intersection and virtual sound source provided by the embodiment of the present invention, combined with Figure 4 It can be seen that the process of generating effective reflected sound rays based on the position of the sound source point and any selected reflecting surface includes:

[0069] Step 301 : With the reflecting surface as the center, a point array is generated in the normal direction of the reflecting surface according to the sound line density.

[0070] Step 302: Draw a perpendicular line along the normal direction on the point array, and use the intersection point of the perpendicular line and the reflection surface as the reflection point.

[0071] In step 303, a line is connected between the sound source point and the reflection point to generate an incident sound ray. If and only if the number of intersections between the incident sound ray and the reflection surface is 1, the incident sound ray is determined to be a valid incident sound ray and the sound ray is generated in the 3D model. Otherwise, the incident sound ray is determined to be an invalid sound ray and is not generated in the 3D model.

[0072] Step 304 : With the reflection point corresponding to the effective incident sound ray as the center, generate a section of the reflection point relative to the reflection surface, and with the section as the symmetry plane, generate a virtual sound source corresponding to the sound source.

[0073] Step 305 : Connect the virtual sound source and the reflection point and extend the line to form a reflected sound ray. If and only if the number of intersections between the reflected sound ray and the reflection surface is 1, the reflected sound ray is determined to be a valid reflected sound ray; otherwise, it is determined to be an invalid sound ray.

[0074] like Figure 5 The diagram shows the effective reflected sound line and receiving point provided by the embodiment of the present invention, combined with Figure 5 It can be seen that, in a possible embodiment, the process of determining the effective sound ray based on the intersection of the effective reflected sound ray and the receiving surface in step 3 includes:

[0075] The effective reflected sound line is extended. When the extended reflected sound line intersects the receiving surface, it is determined to be a valid sound line, the sound line stops extending, and this sound line is generated in the three-dimensional model; when the extended reflected sound line does not intersect the receiving surface, it is determined to be an invalid sound line and this sound line is not generated in the three-dimensional space.

[0076] In a possible embodiment, the process of displaying the sound ray coverage area in the receiving surface based on the position of the effective sound ray in step 3 includes:

[0077] Spherical receiving points are formed at the intersections of the extended reflected sound lines and the receiving surface, and all the receiving points constitute the sound line coverage area.

[0078] Example 2

[0079] Embodiment 2 provided by the present invention is an embodiment of a three-dimensional sound ray analysis system based on a parameterized platform provided by the present invention. Figure 9 A structural diagram of a three-dimensional sound ray analysis system based on a parameterized platform provided by an embodiment of the present invention, combined with Figure 9 It can be seen that the embodiment of the analysis system includes: a model generation module, a sound ray density setting module and a sound ray coverage area generation module.

[0080] The model generation module is used to define the positions of sound source points, receiving surfaces and reflecting surfaces in the three-dimensional model of the building.

[0081] The sound source point is one or more points defined by coordinates; the position of the receiving surface is determined by the position of the curved surface where the auditorium is located; the position of the reflecting surface is the position of the curved surface where the wall and ceiling inside the building reflect the sound.

[0082] The sound line density setting module is used to set the sound line density in the horizontal and vertical directions according to the analysis accuracy requirements.

[0083] The sound ray coverage area generation module is used to generate effective reflected sound rays in the three-dimensional model based on the positions of the sound source point and the reflecting surface and the sound ray density, determine the effective sound rays based on the intersection of the effective reflected sound rays and the receiving surface, and display the sound ray coverage area in the receiving surface based on the position of the effective sound rays.

[0084] In one embodiment of the present invention, the analysis system can be based on Grasshopper, a parametric design platform built into Rhino software, using NURBS surfaces instead of planes for analysis. This system, combined with the virtual sound source method, enables three-dimensional sound ray analysis within the Rhino platform. Rhino software uses smooth NURBS surfaces, rather than mesh-fitted surfaces, significantly improving the accuracy of reflected sound ray analysis and the efficiency of interactive design between acoustic designers and architects.

[0085] It can be understood that the three-dimensional sound ray analysis system based on a parametric platform provided by the present invention corresponds to the three-dimensional sound ray analysis method based on a parametric platform provided in the aforementioned embodiments. The relevant technical features of the three-dimensional sound ray analysis system based on a parametric platform can refer to the relevant technical features of the three-dimensional sound ray analysis method based on a parametric platform, and will not be repeated here.

[0086] The embodiments of the present invention provide a three-dimensional sound ray analysis method and system based on a parametric platform. The method studies the relationship between the shapes of the indoor ceilings and side walls of performing arts buildings and the auditorium, considers the coverage area of ​​the indoor sound source reflected from the ceilings and side walls to the auditorium after the sound is emitted, provides a basis for optimizing the shapes of the ceilings and side walls, and makes the design of the indoor ceilings and side walls of the building more reasonable. The method overcomes the shortcomings and limitations of traditional two-dimensional sound rays that can only analyze a single plane, makes it possible to analyze sound rays reflected from irregular curved surfaces, and the analysis results are closer to the actual situation. The analysis is performed based on Rhino software, whose surfaces are smooth NURBS surfaces rather than mesh surfaces, which makes the analysis results more accurate. The system is on the same platform as the architectural design software, which greatly improves the interactive design efficiency between acoustic engineers and architectural designers, assists acoustic engineers and architects in making design decisions, and has high practical value. It also facilitates the interactive design between acoustic designers and architectural designers, and improves work efficiency and accuracy.

[0087] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0088] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0089] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1A device that provides the functions specified in a block or multiple blocks.

[0090] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0091] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0092] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0093] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A three-dimensional sound ray analysis method based on a parametric platform, characterized in that: The analysis method comprises: Step 1: Define the locations of the sound source, receiving surface, and reflecting surface in the three-dimensional building model; The sound source point is one or more points defined by coordinates; the position of the receiving surface is determined according to the position of the curved surface where the auditorium is located; the position of the reflecting surface is the position of the curved surface where the wall or ceiling inside the building reflects the sound; Step 2: Set the horizontal and vertical sound line density according to the analysis accuracy requirements; Step 3: generating effective reflected sound rays in the three-dimensional model according to the positions of the sound source point and the reflecting surface and the sound ray density, determining effective sound rays based on the intersection of the effective reflected sound rays and the receiving surface, and displaying the sound ray coverage area in the receiving surface based on the position of the effective sound rays; In step 3, the effective reflected sound rays are generated respectively according to the positions of the sound source point and each reflecting surface; The process of generating the effective reflected sound line according to the position of the sound source point and any selected reflecting surface includes: Step 301, taking the reflecting surface as the center, generating a point array in the normal direction of the reflecting surface according to the sound line density; Step 302: Draw a perpendicular line along the normal direction on the point array, and use the intersection of the perpendicular line and the reflecting surface as the reflection point; Step 303: Connect the sound source point and the reflection point to generate an incident sound ray. If the number of intersections between the incident sound ray and the reflection surface is 1, the incident sound ray is determined to be a valid incident sound ray; otherwise, it is determined to be an invalid sound ray. Step 304: generating a tangent plane of the reflection point relative to the reflection surface with the reflection point corresponding to the effective incident sound ray as the center, and generating a virtual sound source corresponding to the sound source with the tangent plane as the symmetry plane; Step 305: Connect the virtual sound source and the reflection point and extend the line to form a reflected sound ray. If the number of intersections between the reflected sound ray and the reflection surface is 1, the reflected sound ray is determined to be a valid reflected sound ray; otherwise, it is determined to be an invalid sound ray. The process of determining the effective sound ray based on the intersection of the effective reflected sound ray and the receiving surface in step 3 includes: The effective reflected sound line is extended. When the extended reflected sound line intersects the receiving surface, the effective reflected sound line is determined to be an effective sound line; when the extended reflected sound line does not intersect the receiving surface, the effective reflected sound line is determined to be an invalid sound line.

2. The method according to claim 1, characterized in that The location of the sound source point is defined according to the functional characteristics of the building.

3. The analysis method according to claim 1, characterized in that The process of determining the position of the receiving surface according to the position of the curved surface where the auditorium is located includes: The vertical distance between the receiving surface and the auditorium is set according to the viewing mode, and the curved surface obtained by adding the vertical distance to the position of the curved surface where the auditorium is located is determined as the receiving surface.

4. The analysis method according to claim 1, characterized in that The walls inside the building that reflect sound include side walls and ceilings.

5. The analysis method according to claim 1, characterized in that The process of displaying the sound ray coverage area in the receiving surface based on the position of the effective sound ray in step 3 includes: Spherical receiving points are formed at the intersections of the extended reflected sound lines and the receiving surface, and all the receiving points constitute the sound line coverage area.

6. The analysis method according to claim 1, characterized in that After obtaining the sound ray coverage area in step 3, the method further includes: judging whether the building shape is reasonable based on the sound ray coverage area and the receiving surface, and performing an optimization decision.

7. An analysis system for the three-dimensional sound ray analysis method based on a parameterized platform according to any one of claims 1 to 6, characterized in that: The analysis system includes: a model generation module, a sound line density setting module and a sound line coverage area generation module; The model generation module is used to define the positions of the sound source point, the receiving surface and the reflecting surface in the three-dimensional building model; The sound source point is one or more points defined by coordinates; the position of the receiving surface is determined according to the position of the curved surface where the auditorium is located; the position of the reflecting surface is the position of the curved surface where the wall or ceiling inside the building reflects the sound; The sound line density setting module is used to set the sound line density in the horizontal and vertical directions according to the analysis accuracy requirements; The sound ray coverage area generation module is configured to generate effective reflected sound rays in the three-dimensional model based on the positions of the sound source point and the reflecting surface and the sound ray density, determine effective sound rays based on the intersection of the effective reflected sound rays and the receiving surface, and display the sound ray coverage area in the receiving surface based on the position of the effective sound rays.

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