An acoustic space architectural structure that amplifies sound and creates optimal reverberation without the need for acoustic equipment through sound focusing

Abstract

The acoustic space architectural structure of the present invention comprises a number of acoustic guide slats that are erected at predetermined intervals on a reference floor surface and that present an overall curved frame shape on a plane; acoustic reflecting walls that are connected to the acoustic guide slats and have the same curved shape on a plane, forming an acoustic space surrounded by the inside of the wall surfaces; and a rooftop viewing floor that extends outward at a certain height above the acoustic guide slats and acoustic reflecting walls, and is characterized in that the acoustic guide slats are installed on the reference floor surface so as to form a radial layout with the center point on the plane as the center of an arc, and protrude inward a certain length from the wall surfaces of the acoustic reflecting walls. According to the present invention, the sound emitted from the outdoor stage is amplified by itself through sound focusing and resonance, making it possible to hear the original sound at a satisfactory volume without any additional sound equipment. In addition, the reflection, absorption, and interference of sound create an appropriate harmony, creating an optimal reverberation with a clear and transparent sound.

Description

[Technical field]

[0001] The present invention relates to an open-top architectural structure having an open space at the center of the architectural plan, and more specifically, when an outdoor event or function such as a music performance, speech, or wedding is held in the open space, the sound emitted from the central stage is amplified by the sound focusing and resonance caused by the structural characteristics of the building, so that the audience or spectators can hear the original sound at a satisfactory volume without the need for separate sound amplification equipment such as speakers or amplifiers. In addition, the present invention relates to the structural characteristics of the architectural structure that can create an optimal reverberation with a clear and transparent sound by inducing the reflection, absorption, and interference of sound to create an appropriate harmony in terms of sound quality. [Background technology]

[0002] Recently, various types of events and activities that were previously usually held in indoor performance venues, such as music concerts, weddings, cultural and artistic events, lectures, speeches, etc., are increasingly being held as outdoor events and activities in pursuit of a sense of openness, uniqueness, and freedom. In this way, outdoor performance events have the advantage of creating a free atmosphere and giving the audience a unique and fresh feeling because the audience's behavior and actions are not restricted, but they are basically very sensitive to the effects of weather and climate, and in addition, unlike indoors where the space is closed, there is a disadvantage that the sound spreads directly into the open outside space, resulting in significant sound loss and making it difficult for the sound to reach the audience well.

[0003] In particular, to elaborate on the acoustical drawbacks of such outdoor performances, in indoor performances, the sound emitted from the stage is reflected by the walls, ceiling, and floor, and this reflected sound reverberates in the enclosed indoor space, creating a feeling of acoustical fullness and a sense of space, but in outdoor performances, the sound emitted from the stage is not reflected but spreads directly to the open outside, causing severe acoustic loss, making it difficult to appreciate the sound at a sufficient volume, and since the sound does not reverberate, it reaches the audience as a weak and dry sound. Furthermore, although performers must listen to their own playing sounds during the performance, in outdoor performances, their own playing or singing sounds do not reach the performers through reflected sounds, making it very difficult to monitor the performance, and conversely, the performers hear the surrounding noise as it is in a distracted state, which reduces the performers' concentration and makes it difficult to perform a high-level performance.

[0004] Therefore, in the past, in events and festivals such as outdoor performances, separate sound equipment such as speakers and amplifiers were essential items for the audience to hear the stage performance sound at a sufficient volume. However, this required a lot of time, cost and effort to set up such sound equipment beforehand and to remove it after the performance. In addition, there was a drawback in that the audience's satisfaction was reduced because they did not enjoy the stage performance sound in its pure original form, but heard the sound coming through the speakers.

[0005] In addition, in the case of indoor performances, the audience can enjoy the sound reflected and reverberated from the walls, floor, ceiling, etc., together with the original sound from the stage, so that the audience can enjoy a three-dimensional and rich sound quality. However, when the audience enjoys a performance using the above-mentioned acoustic equipment, the audience enjoys the sound coming from speakers installed at certain positions, so the sound is flatter than the indoor performances described above, and the audience cannot help but feel that the sound is dry. In order to overcome this drawback, in the past, a large number of separate surround speakers were placed around the outside of the performance hall in addition to the main speaker to artificially create an effect that is almost the same as the reflected and reverberated sound produced during indoor performances. Representative examples of this conventional technology are listed in Korean Utility Model Registration Nos. 20-0295451 and 20-0316692.

[0006] The above-mentioned prior registered utility model is an invention relating to a system and speaker device for adding reverberation outdoors. As shown in FIG. 6, in addition to a main speaker that outputs direct sound, the prior registered utility model is equipped with a number of early reflection sound speakers and reverberation sound speakers, and these speakers are arranged in a shape that surrounds the outdoor performance venue, thereby creating approximately the same effect as when a reflective wall is artificially installed around the performance venue during an outdoor performance, while also creating a sense of space felt through the reflected sound and reverberation in an indoor performance venue.

[0007] However, with the above-mentioned conventional technology, the installation of additional speakers significantly increases the cost of performances. Moreover, since the installation and removal of sound equipment by skilled technicians is required every time an outdoor performance is held, not only does it require a great deal of time and effort in preparation for and cleanup after the performance, but also, from an acoustic standpoint, even if an attempt is made to indirectly create the effects of reflected sound and reverberation by installing additional speakers, there is a drawback in that the artificial effects using such speakers limit the sense of three-dimensionality and lingering sound that can be felt in an indoor performance. Summary of the Invention [Problem to be solved by the invention]

[0008] Therefore, the present invention aims to provide an architectural structure that allows outdoor performances and other events and festivals to be held without the need for separate audio equipment such as speakers or amplifiers, since when events and festivals such as music performances, speeches, and weddings are held outdoors, the sound emitted from the central stage is amplified by the structural characteristics of the building itself, allowing the audience or spectators to hear the sound as clearly as an indoor performance and at a satisfactory volume.

[0009] Another technical objective of the present invention is to provide an architectural structure that can create optimal reverberation with a clear and transparent sound by appropriately harmonizing the reflection, absorption, and interference of sound in the sound quality of outdoor events and festivals such as those described above, thereby greatly increasing audience satisfaction by allowing audience members to enjoy performances and other events with pure, original sound without the use of sound equipment. [Means for solving the problem]

[0010] In order to solve the above technical problems, the acoustic space architectural structure provided in the present invention is an open-top architectural structure constructed and installed on a reference floor surface, comprising: a number of acoustic induction slats erected at a predetermined interval above the reference floor surface, with one point on the reference floor surface as the center point on the plane, and arranged radially at a distance from the center point on the reference floor surface to form a curved frame shape on the plane as a whole; a wall structure erected and installed on the reference floor surface, an acoustic reflection wall connected to the acoustic induction slats to have the same curved shape as the acoustic induction slats on the plane and to form a certain acoustic space inside; and a rooftop viewing floor installed at a certain height from the reference floor surface and extending in the opposite direction to the center point on the plane of the reference floor surface on the upper part of the acoustic reflection wall.

[0011] Here, the acoustically guiding blades are columnar members with a cross-sectional shape having long and short sides that are connected vertically, and the acoustically guiding blades are installed so that the long sides of their cross sections face toward the center points on the plane of the reference floor surface in a radial layout, and the acoustically guiding blades are installed so that all or part of their cross sections protrude a certain length from the surface of the acoustically reflecting wall in a direction facing the center point on the plane.

[0012] In this case, it is preferable that the acoustic induction vanes are each installed at an equal distance from the center point of the reference floor surface so that when viewed from above, they present a perfect circle on a plane, or an arc shape with one side partially open.

[0013] As a further preferred component of the acoustic space architectural structure of the present invention as described above, the acoustic guide slats may be made of a material having a higher sound absorption coefficient than the acoustic reflection wall, and a sound absorbing finishing layer made of a material having a higher sound absorption coefficient than the acoustic reflection wall may be further formed on the surface of the acoustic guide slats.

[0014] Furthermore, according to the acoustic space architectural structure of the present invention, horizontal acoustic guide vane plates having the same cross-sectional shape as the acoustic guide vane plates may be further installed horizontally between the acoustic guide vane plates. Effect of the Invention

[0015] According to the acoustic space architectural structure of the present invention, when an event or festival such as a music performance, speech, or wedding is held outdoors, the sound emitted from the central stage is amplified by the sound focusing and resonance caused by the structural characteristics of the building, allowing the audience or spectators to hear the sound with a clarity comparable to that of an indoor performance and at a satisfactory volume. Therefore, when an outdoor performance is held, the audience can enjoy the stage performance sound in its pure original sound without the need for separate sound equipment such as speakers or amplifiers, which has the effect of greatly increasing the audience satisfaction.

[0016] In addition, according to the acoustic space architectural structure of the present invention, from the viewpoint of sound quality, the original stage sound, the resonant sound and the reverberant sound can be heard together, thus overcoming the drawback of outdoor performances that the sound is perceived as dry and weak, and allowing the audience to enjoy a rich sound with three-dimensional resonance and lingering sound, just like an indoor performance. In addition, according to the preferred configuration of the present invention, there is an advantage that the reflection, absorption and interference of the sound create an appropriate harmony, creating an optimal reverberation sound with an appropriate resonance and clear transparency.

[0017] Furthermore, in normal outdoor performances, it is difficult for performers on the central stage to monitor their own performance because the sound of the performance spreads directly to the open outside. However, with the acoustic space architectural structure of the present invention, the performers can listen to the sound of their own performance through reflected sound while performing, making it possible to monitor the performance. In addition, the level difference between the stage where the performance is held and the viewing floor makes it possible to block out surrounding noise that reaches the performers, which is advantageous for maintaining the performers' concentration and is also expected to have the effect of making it possible to maintain a high level of performance performance. [Brief description of the drawings]

[0018] [Figure 1]FIG. 2 is a top plan view of the acoustic space architectural structure of the present invention. [Diagram 2] FIG. 2 is a cross-sectional elevation view of the acoustic space architectural structure of the present invention, taken along line A-A' in FIG. [Diagram 3] FIG. 2 is a perspective view of the acoustic space architectural structure of the present invention as viewed from one side. [Figure 4] FIG. 2 is a perspective view of the acoustic space architectural structure of the present invention as viewed from another side. [Diagram 5] FIG. 2 is a diagram showing the acoustic effect in the acoustic space architectural structure according to the present invention. [Figure 6] FIG. 1 is a speaker layout diagram for a conventional outdoor performance reverberation addition system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The present invention will now be described in more detail with reference to the accompanying drawings.

[0020] This invention relates to a courtyard-type architectural structure in which an architectural structure is erected on the ground, but no ceiling is provided in the central part of the architectural plan, leaving the upper part open and surrounded by structures. In particular, this invention aims to structurally create an acoustic space that allows audience members to feel a sense of spaciousness and reverberation comparable to that of an indoor performance when holding outdoor performances and shows in an open-top space equivalent to the courtyard described above, without the need for separate acoustic equipment.

[0021] FIG. 1 is a plan view of the upper part of the acoustic space architectural structure of the present invention as described above, and FIG. 2 is an elevation view of the same. As shown in FIGS. 1 and 2, the acoustic space architectural structure of the present invention is basically composed of a number of acoustic guide slats 10 which are erected at a predetermined interval on a reference floor surface 100 and which form a curved frame shape on a plane as a whole, acoustic reflecting walls 20 which are connected to the acoustic guide slats 10 and have the same curved shape on a plane, forming an acoustic space 200 surrounded by the inside of the wall surface, and a rooftop viewing floor 30 which is extended outward from the center point CP of the arc at a certain height above the acoustic guide slats 10 and acoustic reflecting walls 20 erected as described above, and in addition to these, it further comprises a sound source stage section 50 which is installed in the center of the reference floor surface 100.

[0022] According to the embodiment shown in Figures 1 and 2, in the acoustic space architectural structure of the present invention as described above, the acoustic guide vanes 10 are installed on the reference floor surface 100 in a radial layout at a certain distance from the center point CP on the plane as the center of the arc, and at this time, the acoustic guide vanes 10 are characterized in that, when connected to the acoustic reflecting wall 20, they are installed in a shape that protrudes inward (i.e., toward the center of the arc) by a certain length from the wall surface of the acoustic reflecting wall 20.

[0023] The components constituting the acoustic space architectural structure of the present invention having the above-mentioned configuration will be described in more detail below with reference to the accompanying drawings.

[0024] First, the sound-guiding slats 10 are columnar members that are erected on the reference floor surface 100. In the acoustic space architectural structure of the present invention, a large number of the sound-guiding slats 10 are installed on the reference floor surface 100 at regular intervals as shown in Figs. 1 and 2. At this time, the sound-guiding slats 10 are arranged radially at a certain distance from a central point CP on the reference floor surface 100, so that they form a curved frame structure on a plane as shown in Fig. 1.

[0025] As shown in Figures 1 and 2, the acoustic guide blade plate 10 is a columnar member having a constant cross-sectional shape that is connected vertically in a long shape. Here, the cross-sectional shape of the acoustic guide blade plate 10 is a rectangular columnar shape having long and short sides, and the acoustic guide blade plate 10 is installed with the long side facing toward the inner space, i.e., toward the center point CP on the plane of the reference floor surface. That is, as will be explained in more detail in the section on the effects of the present invention described later, the present invention allows the sound emitted from the central sound source stage 50 to be reflected by the sound reflecting walls 20, and this reflected sound is concentrated in the center, causing a resonance phenomenon (in the present invention, this amplification effect caused by the concentration of sound is called the sound focusing effect), thereby making it possible to obtain a large volume of sound without using any other acoustic equipment. Therefore, in the present invention, as described above, by arranging each sound-guiding slat 10 so that it faces the center point CP, the diffusely reflected reflected sound is made uniform and the reflected sound is led to concentrate in the center, so that the sound focusing phenomenon as described above occurs smoothly.

[0026] On the other hand, according to the embodiment shown in Fig. 1 and Fig. 2, the sound guide slats 10 as described above are installed on the reference floor surface 100 at equal distances from the center point CP on the plane of the reference floor surface, so that when viewed from above, they can be installed to present the shape of a circular arc with one side open. That is, according to the main technical feature of the present invention, as described later, the sound guide slats 10 are connected to the sound reflection wall 20 so that the sound generated from inside the acoustic space 200 is reflected and returned toward the sound source stage 50. However, if the distances from the center point CP on the plane of the sound guide slats 10 are not all equal, but are partially different, unlike the embodiment shown in Fig. 1, there will be a difference in the time it takes for the reflected sound from the sound reflection wall 20 to reach the center point CP, and as a result, the reflected sound of the same content will arrive continuously from different directions in a relay manner with parallax, and the performers performing on the sound source stage 50 may hear it as if it were an echo.

[0027] Therefore, in order to prevent the confusion of the performer due to the parallax of the reflected sound as described above, it is particularly preferable to adopt a circular layout by making the distance from the center point CP of the arc of the sound-guiding slats 10 substantially equidistant, as in the embodiment shown in Figure 1. However, if the above-mentioned disadvantages are taken into consideration to some extent, it can be configured in other curved shapes such as ellipses or undulating curves instead of perfect circles or arcs. However, such embodiments also do not fundamentally deviate from the technical idea of ​​the present invention and should be understood to fall within the technical scope of the present invention.

[0028] On the other hand, Fig. 1 shows an example of an arc-shaped sound guide plate 10 that is partially open in a circular shape, with an opening angle of about 90° at the bottom of the figure. In this case, when the sound guide plate 10 is arranged and installed on a plane in an arc-shaped shape with one side partially open as shown in Fig. 1, it is preferable that the opening angle does not exceed 120° from the center of the arc. If the opening exceeds this range (for example, a semicircular plane), it is not preferable because the sound focusing effect, which corresponds to the main technical feature of the present invention, is not sufficiently obtained.

[0029] In addition, due to the structural features of the present invention, it is more preferable that the sound-inducing slat 10 is made of a material having a higher sound absorption coefficient or sound absorption factor in terms of sound absorption ability than the sound-reflecting wall 20 described later. That is, as described above, in the present invention, the sound-inducing slat 10 is a component for concentrating the sound reflected at the sound-reflecting wall 20 toward the center to induce the sound focusing phenomenon, but if the reflected sound is too excessive, the sound quality may feel somewhat harsh and rough. Therefore, in order to solve this problem, the present invention is configured to have a higher sound absorption coefficient than the sound-reflecting wall 20 as described above, so that a part of the original sound is absorbed and the level of the reflected sound can be adjusted, and due to this preferred structural form of the present invention, the present invention can be expected to have the effect of emitting optimal reverberation by properly harmonizing the absorption and reflection of sound. On the other hand, in addition to the above-mentioned configuration, it is also possible to form a sound-absorbing finishing layer (not shown) by attaching or coating a material having a high sound absorption coefficient on the surface of the sound-inducing slat 10, since substantially the same effect can be obtained.

[0030] In the case of the preferred configuration of the present invention as described above, the sound guide slats 10 may be made of wood having a certain degree of sound absorbing ability, and may be basically implemented by using a wooden pillar or by attaching a wooden panel to the surface of a pillar member made of other material such as a metal square pipe. In addition, in the case of wood, although it varies depending on the frequency, the sound absorption coefficient is about 5 to 10%, which is basically not high, but the more empty space there is inside the member, the more the sound absorption coefficient increases, so by adjusting the space occupancy rate inside the wood member, the sound absorption coefficient (or sound absorption coefficient) can be appropriately adjusted as necessary.

[0031] In this case, in the case of the wooden pole or wooden panel as described above, since it is installed outdoors, it is more preferable to use preservative-treated and deformed wood. In addition, in the present invention, the sound guide slats 10 can be realized by, for example, attaching, painting or spraying a sound absorbing material to the surface of a metal square pipe, using other materials such as synthetic resin materials and precast concrete materials, or by other construction such as pouring concrete, in addition to the above-mentioned wood-based materials, according to the selection of a person skilled in the art.

[0032] On the other hand, as shown in Fig. 1, according to the present invention, the sound guide slats 10 are configured to protrude inward (i.e., toward the center point CP on the plane) by a certain length from the surface of the sound reflecting wall 20, which is one of the structural features considered in the present invention to induce the sound focusing phenomenon, which is the main technical effect of the present invention. That is, when sound is reflected on the surface of the sound reflecting wall 20, a substantially certain portion of the sound is diffusely reflected on the surface of the sound reflecting wall 20, and the reflected sound is dispersed and cannot return sufficiently toward the center of the stage. Therefore, in the present invention, as described above, when the sound guide slats 10 are installed and configured, they are configured to protrude by a certain length from the surface of the sound reflecting wall 20 toward the center of the stage, thereby leading and concentrating the sound reflected on the sound reflecting wall 20 toward the center (sound focusing effect). According to the technical features of the present invention, the sound guide slats 10 must protrude sufficiently long to smoothly achieve the sound focusing effect, and the protruding length must be at least 8 cm, preferably 15-30 cm. However, if the protruding length of the sound guide slats 10 is less than 8 cm, it is not preferable because the sound focusing effect is difficult to expect, but if the protruding length is more than 30 cm, it can be adjusted to some extent within the range of no problem in spatial design and construction.

[0033] 1 and 2, the acoustic space architecture of the present invention may further include a horizontal acoustic guide slat 15 in addition to the vertical acoustic guide slat 10. The horizontal acoustic guide slat 15 may be installed horizontally so as to be aligned with the reference floor surface 100 and have the same cross-sectional shape as the acoustic guide slat 10.

[0034] At this time, the horizontal sound guide slats 15 are also a main component that allows the sound focusing function of the present invention to be performed more smoothly, and when the horizontal sound guide slats 15 are added, the sound can be effectively prevented from spreading upward and being dispersed, so that the sound focusing function of the present invention can be further strengthened. Also, for the performers performing at the central sound source stage 50, the reflected sound rising upward is guided and returned to the center of the lower stage by the action of the horizontal sound guide slats 15 as described above, so that it is very advantageous for them to monitor while listening to their own performance sound. The vertical position of such horizontal sound guide slats 15 is preferably approximately at the height of the center of the overall height of the sound guide slats 10, and this installation position can be changed somewhat depending on the overall height of the sound guide slats 10 and the sound reflecting wall body 20 and the distance from the center of the arc.

[0035] Next, the sound reflection wall 20 is a wall-like structure having a certain thickness, and as shown in Figures 1 and 2, the sound reflection wall 20 is connected to the outside of the sound guide vane board 10 and is installed upright on the reference floor surface 100. As shown in Figure 1, the sound reflection wall 20 can be implemented to have an arc-shaped curved shape in a plan view, similar to the sound guide vane board 10, and thus the surface of the sound reflection wall 20 is installed so as to be perpendicular to the direction facing the center point CP of the arc, thereby reflecting the sound incident from the center point CP of the arc in the center and returning it to the original direction.

[0036] As described above, in the present invention, the sound reflecting wall 20 is a component that reflects sound and amplifies the sound by using the resonance phenomenon, and corresponds to a core component that produces the sound focusing effect of the present invention together with the sound guide slats 10.

[0037] The above-mentioned acoustic reflection wall 20 has a smooth surface so that it can reflect back the incident sound as it is, and can be made from a material with high acoustic reflectivity, and glass panels are the most suitable material for this purpose. Other materials such as metal panels such as aluminum, synthetic resin panels, smooth surface-treated stone, and smooth exposed concrete can also be used as the material for the acoustic reflection wall 20, and it is also possible to use a combination of one or more of the above materials, for example, a combination of a glass panel and an aluminum panel.

[0038] On the other hand, according to the embodiment shown in Figures 1 and 2, in a mode in which the above-mentioned sound-guiding slats 10 and sound-reflecting wall 20 are combined, the sound-reflecting wall 20 is constructed as an integrated wall, and the sound-guiding slats 10 are attached tightly to the inner surface of the sound-reflecting wall 20 (i.e., in the direction of the center of the arc) as a separate member and connected and constructed. However, in addition to this embodiment, a window frame may be formed from the sound-guiding slats 10, and a separate glass panel may be sandwiched and fixed between these sound-guiding slats 10.

[0039] The sound guide slats 10 and sound reflecting walls 20 assembled as described above form a circular wall structure as shown in the embodiment of Fig. 1 and Fig. 2, and form a certain sound space 200 as a courtyard-type space inside. As shown in the embodiment, a sound source stage 50 may be installed in the center of the plane of the sound space 200, and the sound generated by a performance / play on the sound source stage 50 is amplified by the reflection and concentration of the sound in the sound reflecting walls 20 and the sound guide slats 10, so that the sound volume is sufficient for the audience to enjoy the performance on the rooftop viewing floor 30 without any additional sound equipment.

[0040] The rooftop viewing floor 30 is a ceiling structure that extends horizontally from the upper side of the sound reflecting wall 20 toward the outside, as shown in Figs. 1 and 2, and the lower part of the rooftop viewing floor 30 may be used to form an indoor space as in the embodiment shown in Figs. 1 and 2, and the upper part may be in the form of a rooftop so that visitors can climb up and enjoy performances held in the sound space 200 with the sound source stage 50. According to the embodiment shown in the figures, the rooftop viewing floor 30 is horizontally installed at a height slightly lower than the top end of the sound reflecting wall 20, thereby maximizing the height of the sound reflecting wall 20 and the sound guide slats 10, but it is also possible to install the rooftop viewing floor 30 at the height of the top end of the sound reflecting wall 20 and install safety facilities such as safety railings (not shown) and other safety facilities. According to Fig. 2, the rooftop viewing floor 30 is shown as being horizontal with the ground, but it may be constructed in a slightly inclined shape depending on the specific implementation design.

[0041] Figures 3 and 4 are three-dimensional views showing the overall shape of the acoustic space architectural structure of the present invention constructed as described above. As shown in Figures 3 and 4, the acoustic space architectural structure of the present invention has a shape in which architectural structures are arranged at a certain distance from the center of the arc as a whole, forming a courtyard-type space with a circular plan and an open top in the center of the architectural plan. As described above, the surface forming the courtyard space in the acoustic space architectural structure of the present invention is formed by erecting a wall structure consisting of a combination of a number of sound-guiding slats and sound-reflecting walls, and a circular acoustic space with an open top is formed in the center of the plan by these sound-guiding slats and sound-reflecting walls. Meanwhile, in Figures 3 and 4, separate identification symbols are omitted to prevent cluttering.

[0042] In concretely implementing such an acoustic space architectural structure of the present invention, it is preferable that the distance from the center of the arc to the sound-guiding slats and the sound-reflecting walls, i.e., the radius of the arc, is in the range of approximately 15 to 35 m. This range is determined by comprehensively taking into consideration the distance from the central sound source stage to the audience at the top of the rooftop viewing floor, the time difference when the sound hits the sound-reflecting walls and returns to the center, and the distance at which the resonance phenomenon due to the harmony between the original sound and the reflected sound can occur smoothly, and from the above perspective, it is recognized that a distance of 15 to 25 m is the most suitable for creating the optimal reverberation sound.

[0043] The height of the sound guide vane and sound reflecting wall structure can be determined in proportion to the distance from the center of the arc to the sound reflecting wall, and can be set to a height of about 3 to 8 m.

[0044] The acoustic effect caused by the sound focusing phenomenon occurring in the acoustic space architectural structure of the present invention will be described in more detail below with reference to the accompanying drawings. Figure 5 is a diagram showing the acoustic effect in the acoustic space architectural structure of the present invention, and the operation related to the acoustic effect of the present invention will be described with reference to Figure 5 as follows.

[0045] As described above, the present invention forms an acoustic space 200 in the center of an architectural plan surrounded by the acoustic reflection wall 20 and the acoustic guide slats 10, and when an outdoor event such as a music performance is held in the acoustic space 200, the sound emitted from the central stage is amplified by the sound focusing and resonance caused by the configuration of the acoustic guide slats 10 and the acoustic reflection wall 20, so that the audience on the rooftop viewing floor 30 can hear the original sound at a satisfactory volume without the need for separate sound amplification equipment such as speakers or amplifiers. This is the main technical feature of the invention.

[0046] To explain this in more detail, when sound is generated by a performance or the like in the acoustic space 200 formed by being surrounded by the sound-guiding slats 10 and the sound-reflecting walls 20, the original sound S0 from the performance spreads and hits the sound-reflecting walls 20 and is reflected, generating the accompanying reflected sound S1. Here, as shown in Fig. 1, the sound-reflecting walls 20 are installed so as to present a circular shape on a plane with the center point CP on the reference floor surface 100 as the center of the arc, so that the reflected sound S1 basically returns in the direction of the center of the stage where the original sound S0 was generated.

[0047] However, as described above, when the original stage sound S0 is reflected by the sound reflecting wall 20, even if the sound reflecting wall 20 has a smooth surface suitable for sound reflection, not all of the reflected sound S1 returns precisely to the center of the stage, and in fact, the reflected sound is dispersed due to diffuse reflection only in a certain portion of the surface of the sound reflecting wall 20. In contrast, the present invention, as described above, is configured to install the sound guide slats 10 in a shape that protrudes by a certain length from the inside of the sound reflecting wall 20, so that the reflected sound that is diffusely reflected and scattered on the surface of the sound reflecting wall 20 is guided in the protruding direction by the sound guide slats 10 as described above, thereby suppressing dispersion of the reflected sound S1 and concentrating it toward the center of the stage (in the present invention, the effect of guiding and concentrating the reflected sound to the center in this way is particularly named and used as the sound focusing effect).

[0048] Due to the sound focusing effect, which is the main technical feature of the present invention, the reflected sound S1, which is concentrated at the center of the stage and reflected back as described above, meets the original stage sound S0 and the reflected sounds returning from other directions, causing interference and resonance, generating a resonant sound S2, which escapes to the top of the acoustic space 200 and reaches the audience on the rooftop viewing floor 30 that extends outside the top of the acoustic reflecting wall 20, and is heard by the audience. Therefore, the audience on the rooftop viewing floor 30 can hear the direct original stage sound S0 as well as the resonant sound S2 and reverberation sound generated by the reflection and resonance of the sound inside the acoustic space 200, so that it is possible to enjoy the performance with a three-dimensional sound with rich resonance and lingering sound, just like an indoor performance.

[0049] In addition, according to the present invention as described above, unlike the conventional outdoor performances in which the original stage sound spreads directly to the outside, resulting in a large loss of sound volume and requiring a separate sound amplification device, the original stage sound S0 does not spread immediately to the outside, but is reflected by the acoustic reflection wall 20, and a resonant sound S2 is generated within a certain acoustic space 200 and delivered to the audience, so that the lost sound energy can be significantly reduced. Therefore, the acoustic space architectural structure of the present invention has the advantage that sufficient sound volume can be obtained without acoustic equipment such as speakers, allowing the audience to enjoy the pure original sound of the stage performance.

[0050] That is, as shown in Figures 2 and 5 above, according to the acoustic space architectural structure of the present invention, an acoustic space 200 is formed surrounded by sound-reflecting walls 20 at a height lower than the rooftop viewing floor 30 where the audience watches. This acoustic space 200 of the present invention functions like the resonating body of a musical instrument, amplifying the original stage sound to a louder sound so that it can be heard on the rooftop viewing floor 30 above. Therefore, when the sound of the performance is emitted from the central sound source stage 50, this sound is confined within the acoustic space 200 and does not immediately escape, but is reflected multiple times by the acoustic reflecting walls 20 and is amplified into a loud sound due to the interference and overlapping of sounds, and then escapes to the upper part of the acoustic space 200 and is heard by the audience on the rooftop viewing floor 30. At the same time, the reverberation caused by the repeated sound reflections is heard one after the other as if they were connected without interruption, making it possible to hear the pure original sound with a clear acoustic three-dimensional effect without going through any acoustic equipment.

[0051] On the other hand, in relation to the reverberation sound as described above, generally, when the original sound is hardly absorbed during the reflection of sound, and the reverberation sound is only composed of the reflected sound, the sound becomes very loud and the reverberation time is prolonged, resulting in a phenomenon (cave effect) in which the sound becomes slow as if there is an echo. Therefore, in order to address such inconvenience, the present invention presents a more suitable configuration according to the present invention, which is to give a certain level of sound absorption performance to the sound-guiding slats 10 connected to the sound-reflecting wall 20 where sound is reflected as described above, thereby adjusting the sound absorption and reflection to create an optimal reverberation sound.

[0052] That is, according to the preferred configuration of the present invention as described above, the sound-guiding slats 10 are made of a material having a higher sound absorption rate than the sound-reflecting wall 20, or a sound-absorbing finishing layer is formed by attaching (or coating) a sound-absorbing finishing material to the surface, so that when the original stage sound S0 hits the sound-reflecting wall 20 and is reflected, a portion of the sound is absorbed by the sound-guiding slats 10 and returns. By adjusting the sound-absorbing performance of the sound-guiding slats 10, it is possible to appropriately adjust the strength of the reflected sound S1 and optimize the reverberation.

[0053] Therefore, according to the technical features of the present invention as described above, in events and festivals such as music performances held in open outdoor spaces, the sound emitted from the central stage is amplified by itself through sound focusing and resonance, allowing the audience to hear the original sound at a satisfactory volume without the need for additional sound amplification equipment such as speakers or amplifiers. In addition, from the perspective of sound quality, the problem of outdoor performances being perceived as dry and weak is overcome, allowing the audience to enjoy the sound with a three-dimensional and rich feeling like an indoor performance. In addition, the reflection, absorption and interference of sound create an appropriate harmony, creating an optimal reverberation sound with appropriate resonance and clear transparency.

[0054] The present invention has been described in detail above with reference to the embodiments described, but it goes without saying that a person having ordinary knowledge in the technical field to which the present invention pertains can make various substitutions, additions and diversions within the scope of the technical ideas described above, and it should be understood that such modified embodiments also fall within the scope of protection of the present invention defined by the claims. [Industrial Applicability]

[0055] The present invention relates to technology related to the fields of architecture and construction, and can be applied to the design and construction of architectural structures. [Explanation of symbols]

[0056] 10: Acoustic induction blade 15: Horizontal acoustic induction blade 20: Acoustic reflective wall 30: Rooftop viewing floor 50: Sound Stage Department 100: Reference floor level 200: Acoustic Space S0: Stage sound S1: Reflected sound S2: Resonance sound

Claims

1. An open-top architectural structure constructed and installed on a reference floor surface, A point on the reference floor surface is set as the center point on the plane, A number of acoustic guide vanes are erected at a predetermined interval on the upper part of the reference floor surface, and are arranged radially at a distance from the center point on the reference floor surface so as to present a curved shape when viewed from above on the plane as a whole; a wall structure that is erected and installed on the reference floor surface, the wall being connected to the sound-guiding slats and having the same curved shape as the sound-guiding slats on the plane, and an acoustic reflection wall that is installed to form a certain acoustic space inside; A rooftop viewing floor is installed at a certain height from the reference floor surface and extends in the opposite direction to the center point of the reference floor surface on the upper part of the acoustic reflection wall. It is equipped with The acoustic space architectural structure is characterized in that the acoustic guide vanes are columnar members with a cross-sectional shape having long and short sides that are connected vertically, the acoustic guide vanes are installed so that the long sides of their cross sections face the center points on the plane of the reference floor surface in a radial layout, and all or part of the cross sections of the acoustic guide vanes protrude a certain length from the surface of the acoustic reflecting wall in a direction facing the center point on the plane.

2. 2. The acoustic space architectural structure of claim 1, further comprising a sound source stage installed above the center point of the reference floor.

3. The acoustic space architectural structure according to claim 1, characterized in that the acoustic guide vanes are installed at equal distances from the center point of the reference floor surface, so that when viewed from above, they present a perfect circle or an arc shape with one side partially open on the plane.

4. 2. The acoustic space architectural structure of claim 1, wherein the sound guide slats are made of a material having a higher sound absorption coefficient than the sound reflecting wall.

5. The acoustic space architectural structure according to claim 1, wherein a sound absorbing finish layer made of a material having a higher sound absorption coefficient than the sound reflecting wall is further formed on the surface of the sound guide slats.

6. 2. The acoustic space architectural structure of claim 1, wherein the acoustic guide slats are entirely made of wood or have wood boards attached to their surfaces, and the acoustic reflection wall is provided with a glass panel.

7. The acoustic space architectural structure according to any one of claims 1 to 6, characterized in that a horizontal acoustic induction slat having the same cross-sectional shape as the acoustic induction slat is further installed horizontally between the acoustic induction slats.

8. 7. The acoustic space architectural structure according to claim 1, wherein the length by which a portion of the cross section of the acoustic guide vane plate protrudes from the surface of the acoustic reflecting wall is 8 to 30 cm.

9. The acoustic space architectural structure of claim 3, characterized in that when the acoustic guide vane is viewed from above, it is installed so that when it presents an arc shape with one side partially open on the plane, the range of the open angle is within the range of 0° to 120° from the center of the arc.

10. The acoustic space architectural structure according to any one of claims 1 to 6, characterized in that the distance from the center point of the reference floor surface to the acoustic reflection wall is 15 to 30 m, the height of the acoustic guide vane is 3 to 8 m, and the length of a part of the cross section of the acoustic guide vane protruding from the plane of the acoustic reflection wall is 8 to 30 cm.

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