JP2023535119A - Acoustic space architectural structure that creates sound amplification and optimal reverberation sound without acoustic equipment through sound focusing - Google Patents

Abstract

The acoustic space building structure of the present invention comprises a large number of acoustic guiding blades which are erected on a reference floor surface with a predetermined interval therebetween and generally exhibit the shape of a curved frame on a plane; a sound-reflecting wall that is connected to the guide slats and has the same curved shape on a plane and forms an acoustic space surrounded by the inside of the wall surface; and a rooftop viewing floor extending outward at a height of , wherein the acoustic guide slats are laid out radially on the reference floor with the center point on the plane as the center of the arc. and protrudes inward from the wall surface of the acoustic reflection wall by a certain length. As described above, according to the present invention, the sound emitted from the outdoor stage is amplified by sound focusing and resonance phenomenon, so that the original sound can be reproduced at a satisfactory volume without additional sound equipment. Hearing becomes possible, and sound reflection, sound absorption, and interference form an appropriate harmony, which has the effect of producing an optimal reverberation with a clear, transparent feeling.

Description

The present invention relates to an open-top architectural structure having an open-top space in the center of the architectural plane, and more particularly, in the open space, outdoor events such as music performances, speeches, and weddings are held. When opening, the sound emitted from the center stage is amplified by the sound focusing and resonance phenomenon caused by the structural characteristics of the building, so the audience does not need a separate sound system such as speakers or amplifiers. Alternatively, it is possible for the audience to hear the pure original sound at a volume that is satisfactory to them. The present invention relates to a structural feature of a building structure capable of producing optimum reverberation with clear transparency by induction.

In recent years, various types of events and events, such as music concerts, wedding ceremonies, cultural and artistic events, lectures, speeches, etc., have been held in existing indoor performance halls. In order to pursue sensibility, uniqueness, free atmosphere, etc., there is a tendency to rapidly increase the number of outdoor events and events that are held outside indoors. In this way, in the case of performance events held outdoors, the behavior and actions of the audience are not restricted, so there are merits such as being able to create a free atmosphere and give the audience a unique and fresh feeling. , is fundamentally very sensitive to the effects of weather and climate, and in conjunction with this, the sound spreads unaltered into an open external space, unlike the spatially enclosed indoor space. loss of sound is significant, and the sound is difficult to reach the audience.

In particular, to explain in more detail the shortcomings from the acoustical side that are considered problematic in such outdoor performances, in the case of performances and performances held indoors, the sound emitted from the stage is the wall, ceiling, and floor. The reflected sound reverberates in a closed indoor space and creates reverberant sound, which creates a feeling of acoustic fullness and space. Because the sound emitted from the stage is not reflected and spreads as it is to the open outside, the loss of sound is so severe that it is difficult to appreciate it at a sufficient volume, and the sound does not reverberate. Therefore, there was a drawback that it reached the audience as a poor and dry sound. In addition, even though performers must perform while listening to the sound of their performance during the performance, in outdoor performances, the sound of their performance or singing does not reach the performer through reflected sound. Therefore, it is very difficult to monitor the performance in this way, and on the contrary, the surrounding noise is heard by the performers in a distracted state, resulting in a decrease in the concentration of the performers and a high-level performance. There was an inconvenience that it was difficult to carry out.

Therefore, in such events and events such as outdoor performances, conventionally, separate speakers, amplifiers, and other acoustic equipment have been indispensable items for the audience to hear the sound of the stage performance at a sufficient volume. However, as a result, it takes a lot of time, money and effort to install the above sound equipment in advance and collect it after the performance. There was a drawback that the satisfaction level of the audience was lowered because they listened to the sound flowing through the speakers instead of listening to the original sound as it was.

In addition, in the case of indoor performances, the audience listens to the original sound of the stage as well as the reflected and reverberating sounds from the walls, floor, ceiling, etc., so that the audience can experience a three-dimensional and rich acoustic experience. However, when listening to a performance using audio equipment as described above, the sound is heard through speakers installed in a certain position, so the sound is not as good as the indoor performance as described above. There was a limit that it could not be delivered as a flat and dry sound. In order to overcome these drawbacks, conventionally, in addition to the main speakers, a large number of separate surround speakers are arranged around the outside of the performance hall to produce substantially the same reflected and reverberant sounds as in indoor performances. The effects are artificially created, and representative examples of such conventional technology include Korean Registered Utility Model Nos. 20-0295451 and 20-0316692.

The above-mentioned prior registered utility model is a device related to an outdoor reverberation addition system and a speaker device. As shown in FIG. Equipped with a large number of sound speakers and reverberation speakers, and by arranging these speakers in a shape that surrounds the outdoor performance hall, the effect is almost the same as if a reflective wall was artificially installed around the performance hall during an outdoor performance. while creating a sense of space that can be felt from the reflected and reverberating sounds of an indoor performance hall.

However, according to the conventional technology as described above, the additional installation of such speakers causes the cost of the performance to rise significantly. Because of the need for removal work, it takes a lot of time and effort to prepare for the performance and clean up after the performance. Even if an attempt was made to create the effects of reflected and reverberating sounds, there was a drawback that there was a limit to the three-dimensional effect and reverberation of an indoor performance through artificial effects using such speakers.

Therefore, when an event such as a music performance, a speech, a wedding ceremony, etc. is held outdoors, the sound emitted from the central stage is amplified due to the structural characteristics of the building. An architectural structure that can be used to hold events such as outdoor performances without separate acoustic equipment such as speakers or amplifiers, because the audience or spectators can hear it clearly enough to be comparable to indoor performances and at a satisfactory volume. The problem to be solved is to provide

In addition, the present invention can greatly enhance the satisfaction of the audience because the audience can appreciate the performance with the pure original sound without using the acoustic equipment at the time of the above outdoor events and events. From the aspect of sound quality, another technical aspect is to provide a building structure that can create optimal reverberation with a clear and transparent feeling by appropriately harmonizing sound reflection, sound absorption, and interference. Make it an issue.

In order to solve the technical problems as described above, the acoustic space architectural structure provided in the present invention is an open-top architectural structure that is constructed and installed on a standard floor surface. The upper point is set as the central point on the plane, and they are erected on the upper part of the reference floor at a predetermined interval, and are radially arranged at a distance from the central point on the reference floor, and are generally on the plane. and a wall structure erected on the reference floor surface and connected to the acoustic guide slats. A sound reflection wall that has the same curved shape on the plane as the sound guide blade plate and is installed so as to form a certain acoustic space inside, and is installed at a certain height away from the reference floor surface. and a rooftop viewing floor extending in the opposite direction to the central point on the plane of the reference floor surface above the acoustic reflecting wall.

Here, the sound-guiding blade plate is a columnar member whose cross-sectional shape generally has long sides and short sides and is vertically connected. The sound guide blades are installed in a radial layout so as to face the center point on the plane of the reference floor, and all or part of the cross section of the sound guide blades extends from the surface of the sound reflection wall to the plane. It is installed so as to protrude by a certain length in the direction facing the upper center point.

At this time, the sound guide blades are installed at equal distances from the center point of the reference floor surface, so that when viewed from above, the sound guide blades are in the shape of a perfect circle on the plane, or one side is partially open. It is preferable that they are installed so as to exhibit a circular arc shape.

In addition, as a further preferred component for the acoustic space building structure of the present invention as described above, the acoustic guide blades are made of a material having a higher absorption coefficient than the acoustic reflecting wall. A sound absorbing finishing layer made of a material having a higher sound absorption coefficient than that of the sound reflecting wall may be further formed on the surface of the sound guiding slats.

Furthermore, according to the acoustic space building structure of the present invention, horizontal sound guide slats having the same cross-sectional shape as the sound guide slats are further installed horizontally between the sound guide slats. good too.

According to the acoustic space building structure of the present invention as described above, when an event such as a music performance, a speech, a wedding ceremony, etc. is held outdoors, the sound emitted from the central stage is affected by the structural characteristics of the building. The sound focusing and resonance phenomenon caused by the sound amplification effect itself causes the audience or spectators to hear the sound clearly and at a satisfactory volume comparable to indoor performances. When an outdoor performance is held, the audience can appreciate the sound of the stage performance as it is without the need for additional acoustic equipment such as speakers and amplifiers, so the satisfaction level of the audience can be greatly increased. There is

In addition, according to the acoustic space architectural structure of the present invention, the original sound of the stage, the resonance sound, and the reverberation sound can be heard together from the aspect of sound quality, so it has been pointed out as a drawback of outdoor performances. In addition, it is possible to overcome the fact that the sound is perceived as dry and weak, and to appreciate the sound that is three-dimensional and rich in reverberations and reverberations like in indoor performances. In conjunction with this, according to the preferred configuration of the present invention, sound reflection, sound absorption, and interference form an appropriate harmony, thereby producing an optimal reverberation sound with appropriate reverberation and clear transparency. It has the advantage of being able to

Furthermore, for the performers of the central stage, it was difficult for them to monitor their own performances in a normal outdoor performance because the sound of the performance spreads out as it is to the open outside. According to the acoustic space architectural structure, it is possible to perform performances while listening to the sound of one's own performance through reflected sounds, so it is possible to monitor performances. The difference in level between the theater and the viewing floor can block surrounding noise from reaching the performers, which is advantageous for maintaining the concentration of the performers and maintaining a high level of performance. The effect of becoming possible can also be expected.

1 is a top plan view of an acoustic space architectural structure of the present invention; FIG. FIG. 2 is an elevation cross-sectional view of the acoustic space architectural structure of the present invention, taken along line A-A' of FIG. 1; 1 is a perspective view of the acoustic space architectural structure of the present invention viewed from one side; FIG. FIG. 4 is a perspective view of the acoustic space architectural structure of the present invention viewed from another side; FIG. 2 is a diagrammatic representation of acoustic effects in the acoustic space building structure according to the present invention; 1 is a layout diagram of speakers for a conventional outdoor performance reverberation addition system; FIG.

The present invention will be described in more detail below with reference to the accompanying drawings.

In the present invention, the building structure is erected on the ground, but since no ceiling is provided in the central part of the building plane, the upper part is open and is surrounded by the structure. This invention relates to a courtyard-type building structure having a space of a shape, and in particular, the present invention does not require separate acoustic equipment when holding outdoor performances, performances, etc. in the upper open space corresponding to the courtyard as described above. To structurally construct and realize an acoustic space in which an audience listening to a musical performance can feel a sense of space and reverberant sound comparable to those of a musical performance in an indoor space.

FIG. 1 is a top plan view of the acoustic space building structure of the present invention as described above, and FIG. 2 is an elevation view of the same. The structure as a whole is erected on a reference floor 100 at predetermined intervals, and has a large number of acoustic guide blades 10 that generally exhibit a curved frame shape on the plane, and the acoustic guide. A sound reflecting wall 20 connected to the slats 10 and having the same curved shape on a plane and forming an acoustic space 200 surrounded by the inside of the wall surface, and the sound guiding slats erected as described above. 10 and a rooftop viewing floor 30 extending outward from the center point CP of the arc at a certain height above the sound reflecting wall 20, and in addition to these, It can be seen that the sound source stage section 50 installed at the center on the reference floor 100 is further provided.

Further, according to the embodiment shown in FIGS. 1 and 2, in the acoustic space building structure of the present invention as described above, the acoustic guide vanes 10 are arranged on the reference floor 100 so that the central point CP on the plane is an arc. is installed so as to form a radial layout with a certain distance from the center of the sound reflecting wall 20. It is characterized in that it is installed in a shape that protrudes inward (that is, toward the center of the arc) from the wall surface by a certain length.

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

First, the acoustic guide vane 10 is a columnar member that is erected and installed on the reference floor surface 100. In the acoustic space architectural structure of the present invention, the acoustic guide vane 10 is 1 and 2, a large number of sound guiding blades 10 are placed on a reference floor 100 at regular intervals from each other. as a center point CP, and are radially arranged at a constant distance from this center point CP, so as to form a curved frame structure on a plane as shown in FIG.

Further, as shown in FIGS. 1 and 2, the acoustic guide vane plate 10 is a columnar member having a generally uniform cross-sectional shape that is vertically connected in a long length. The shape of the cross section of the plate 10 is generally a rectangular column having long sides and short sides, and the direction of the long side is the direction of the inner space, that is, the center point CP on the plane of the reference floor surface. They are installed in the same direction so that they face each other. That is, as will be described in more detail in the column of effects of the present invention described later, the present invention is such that the sound emitted from the sound source stage section 50 in the center is reflected by the sound reflecting wall 20, and the reflected sound (In the present invention, the amplification effect due to the concentration of sound is called Sound Focusing effect.) Without sound equipment, In order to obtain a large sound volume, in the present invention, as described above, by arranging each sound guide vane 10 so as to face the center point CP, the diffusely reflected sound is kept constant. It is especially considered that the sound focusing phenomenon as described above occurs smoothly by guiding the reflected sound to be concentrated in the central portion.

On the other hand, according to the embodiment shown in FIGS. 1 and 2, when the acoustic guide blades 10 as described above are installed on the reference floor surface 100, they are arranged respectively from the center point CP on the plane of the reference floor surface. By being equidistantly installed, they can be installed so as to present an arc shape with one side open when viewed from above. That is, according to the main technical feature of the present invention, as will be described later, the sound reflecting wall 20 is connected to the sound guiding blade 10, and the sound emitted from the inside of the acoustic space 200 is a sound source stage. 1, but if the distances from the center point CP on the plane of the acoustic guide vane 10 are equal to each other, unlike the embodiment shown in FIG. If the implementation is performed so that there is a partial difference instead of the distance, the reflected sound from the acoustic reflection wall 20 will have a difference in the time it takes to reach the center point CP, resulting in a difference in the reflected sound with the same content. If the sound arrives continuously from different directions in a relay manner with a parallax, there is a risk that the performers performing on the sound source stage section 50 will perceive it in the form of an echo sound.

Therefore, in order to prevent confusion of the performer due to the parallax of the reflected sound as described above, the distance from the center point CP of the arc of the sound guide vanes 10 is substantially equidistant, as in the embodiment shown in FIG. Therefore, it can be said that a circular layout is particularly preferable. It can also be configured in other curvilinear shapes such as an elliptical shape or in an undulating curvilinear shape. should be understood to fall within the scope of

On the other hand, in FIG. 1, when implementing the above-described sound guide vane plate 10, as an example in which the circular shape is configured in an arc shape in which a part is opened, , showing an open form. At this time, as shown in FIG. 1, when the acoustic guide vanes 10 are arranged and constructed in an arc shape with one side partially open on a plane, the range of this open angle is from the center of the arc. It is preferable not to exceed a range of 120°, and if it is opened beyond this range (e.g. a semi-circular plane), the sound focusing effect corresponding to the main technical feature of the present invention will be sufficient. It is not preferable because it is difficult to obtain.

In addition to this, due to the structural features of the present invention, when implementing the acoustic guide vane 10, the acoustic guide vane 10 is compared with the acoustic reflecting wall 20 described later, in terms of sound absorption performance. It is more preferable to make it from a material that has a higher apparent absorption coefficient or sound absorption coefficient. That is, as described above, in the present invention, the acoustic guiding blade 10 is a component for inducing a sound focusing phenomenon by concentrating the sound reflected by the acoustic reflecting wall 20 toward the center. At this time, however, if the reflected sound becomes too excessive, there is a risk that the reverberation will be a little harsh and the sound quality will be poor. Therefore, with respect to such a problem, the present invention, as described above, is configured so that the sound guide blade plate 10 has a higher sound absorption coefficient than the sound reflection wall body 20, thereby partially absorbing the original sound. The present invention can be configured to adjust the level of the reflected sound in such a manner that the absorption and reflection of sound are appropriately harmonized. In this way, it is possible to expect the effect of making it possible to emit optimal reverberant sound. On the other hand, in addition to the above structure, there is a method of forming a sound absorbing finish layer (not shown) by attaching or coating a material having a high sound absorption coefficient on the surface of the sound guide blade 10. Since substantially the same effect can be obtained by implementing the method using the above method, it is sufficiently possible to implement the method in this manner.

According to the preferred configuration of the present invention as described above, the sound guide blades 10 may be made of a wooden material having a certain degree of sound absorption. It may be implemented by a method of finishing by attaching a wood panel to the surface of a column member made of other material such as a square pipe made of steel. In the case of wood, the sound absorption coefficient is about 5 to 10%, although it varies depending on the frequency. Since the sound absorption coefficient is greatly increased, the sound absorption coefficient (or sound absorption coefficient) can be appropriately adjusted as needed by adjusting the space occupation ratio inside the wooden member.

At this time, in the case of a 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-guiding vane plate 10 may be made of, for example, a sound-absorbing material attached to the surface of a metal square pipe, in addition to the wooden material as described above, according to the selection of a person skilled in the art. It can also be implemented by a method of applying paint color or spray coating, using members made of other materials such as synthetic resin members or precast concrete members, or performing other methods such as concrete casting molding.

On the other hand, as shown in FIG. 1, according to the present invention, the sound-guiding vanes 10 are positioned inward from the surface of the sound-reflecting wall 20 by a certain length (that is, at the center point on the plane). CP), 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. be. That is, when the sound is reflected on the surface of the sound reflecting wall 20, a substantially constant portion of the sound is diffusely reflected on the surface of the sound reflecting wall 20, thereby dispersing the reflected sound to the stage. Since it is not possible to sufficiently return to the center direction, in the present invention, when installing and configuring the sound guide blades 10 as described above, a certain length from the surface of the sound reflecting wall 20 toward the center of the stage is required. , the sound reflected by the sound reflecting wall 20 is guided toward the center and concentrated (sound focusing effect). According to the technical features of the present invention, the sound guide slats 10 should protrude by a sufficient length so that the sound focusing action as described above can occur smoothly. The length should basically be at least 8 cm, preferably 15-30 cm is suitable. However, if the protruding length of the sound guiding blade plate 10 is less than 8 cm, it is not preferable because the sound focusing effect cannot be expected. can be adjusted to some extent within the range where there are no problems in space design and construction.

Further, as in the preferred embodiment shown in FIGS. 1 and 2, the acoustic space building of the present invention includes horizontal sound guide slats 15 in addition to the vertical sound guide slats 10 as described above. Further may be installed. The horizontal sound guide slats 15 may be horizontally installed so as to be aligned with the reference floor 100 with basically the same cross-sectional shape as the sound guide slats 10 described above.

At this time, the horizontal sound guide slats 15 are also the main components that make the sound focusing effect more smooth in the present invention. Since it is possible to effectively suppress the spread and dispersion of the sound in the upper part, it is possible to further enhance the sound focusing effect of the present invention. Also, for the performer performing on the sound source stage 50 in the center, the reflected sound that rises upward due to the action of the horizontal sound guide blades 15 as described above is guided back to the center of the lower stage. This has the advantage of providing a very advantageous effect for monitoring while listening to the sound of your performance. It is preferable that the vertical position of the horizontal sound guide blade 15 is approximately the height of the central portion of the overall height of the sound guide blade 10, and this installation position is the sound guide blade. The total height of the plate 10 and the sound-reflecting wall 20 and the distance from the center of the arc can vary more or less.

Next, the acoustic reflecting wall 20 is a wall-like structure having a certain thickness, and the acoustic reflecting wall 20 is formed of the above-described acoustic guide blades as shown in FIGS. 1 and 2 . 10 and installed upright on the reference floor surface 100 . As shown in FIG. 1, the acoustic reflection wall 20 can be implemented to have an arcuate curved shape in a plan view in the same manner as the acoustic guide vanes 10 described above. The surface of the reflecting wall 20 is perpendicular to the direction of the central point CP of the arc, so that the sound incident from the central point CP of the central arc can be reflected and returned to the original direction. be done.

As described above, in the present invention, the sound reflecting wall 20 is a component that reflects sound and causes the sound to amplify itself by using a resonance phenomenon. , correspond to the core components that produce the sound focusing action of the present invention.

The acoustic reflection wall 20 as described above has a smooth surface so that the incident sound can be reflected back as it is, and can be made of a member having a high acoustic reflectance. Glass panels are most suitable for use. In addition, as the material of the sound reflecting wall 20, other materials such as metal panels such as aluminum, synthetic resin panels, smooth surrogate stone, and smooth exposed concrete can also be adopted. , a combination of one or more of the above material members, such as a combination of a glass panel and an aluminum panel.

On the other hand, according to the embodiment shown in FIGS. 1 and 2, in the aspect in which the sound guide vane plate 10 and the sound reflecting wall 20 are combined, the sound reflecting wall 20 is constructed as an integrated wall. , shows an example in which the sound guide blade plate 10 is attached and constructed as a separate member in close contact with the inner surface of the sound reflecting wall 20 (that is, toward the center of the arc). Alternatively, a window frame may be constructed from the sound guide blades 10, and a separate glass panel may be sandwiched between the sound guide blades 10 and fixed.

The sound-guiding vane 10 and the sound-reflecting wall 20 combined as described above exhibit the shape of a generally circular wall structure, as in the embodiment shown in FIGS. 1 and 2, and , which is a courtyard-shaped space inside thereof, forming a certain acoustic space 200 . In addition, as in the illustrated embodiment, a sound source stage section 50 may be installed in the central portion of the plane within the acoustic space 200, and the sound generated by the performance/performance on the sound source stage section 50 may be provided. The sound is amplified by the reflection and concentrated induction of the sound on the sound reflection wall 20 and the sound guide blade 10, so that the sound can be viewed on the rooftop viewing floor 30 without additional sound equipment. It will produce enough volume for the audience to appreciate it.

The rooftop viewing floor 30, as shown in FIGS. 1 and 2, is a ceiling structure extending horizontally outward from the upper side of the sound reflecting wall 20. As in the embodiment shown in FIGS. 1 and 2, an indoor space is formed and used, and the upper part is in the form of a rooftop, and the audience can climb up to the acoustic space with the sound source stage 50. It may also be configured such that a performance held at 200 can be viewed. According to the illustrated embodiment, the rooftop viewing floor 30 is installed horizontally at a height slightly below the top edge of the acoustic reflecting wall 20, so that the acoustic reflecting wall 20 and the acoustic induction Although an example in which the height of the slats 10 is maximized is shown, a rooftop viewing floor 30 is installed at the height of the top end of the acoustic reflection wall 20, and a safety handrail (not shown) is provided. It is also possible to install and construct safety facilities such as. In addition, 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 according to a specific implementation design.

3 and 4 are diagrams stereoscopically showing the overall shape of the acoustic space architectural structure of the present invention configured as described above. As shown in FIGS. Spatial architectural structures are arranged at a certain distance from the center of the arc as a whole to form a courtyard-shaped space with an open top in the center of the architectural plane. It can be seen that it exhibits a shape. At this time, as described above, in the acoustic space architectural structure of the present invention, the surface forming the courtyard space is formed by erecting a wall structure made up of a combination of a large number of sound guide vanes and sound reflecting walls. A circular acoustic space with an open top is formed in the center of the plane by the acoustic guiding blades and the acoustic reflecting wall. On the other hand, in FIGS. 3 and 4, separate identification codes are omitted in order to avoid congestion in the figures.

In the concrete implementation of such an acoustic space building structure of the present invention, the distance from the center of the arc to the acoustic guide blades and the acoustic reflection wall, that is, the radius of the arc is generally in the range of 15 to 35 m. It is preferable to do so. This range consists of the distance from the sound source stage in the center to the audience on the rooftop viewing floor, the time difference between the sound hitting the sound reflection wall and returning to the center, and the resonance due to the harmony between the original sound and the reflected sound. The distance at which the phenomenon can occur smoothly is taken into consideration comprehensively, and from the above point of view, a distance of 15 to 25 m is considered to be the most suitable for producing the optimum reverberant sound.

In addition, the height of the sound-guiding vanes and the sound-reflecting wall structure can be determined in proportion to the distance from the center of the arc to the sound-reflecting wall structure, and is approximately 3 to 8 m. It is possible.

In the following, the acoustic effect due to the sound focusing phenomenon occurring in the acoustic space architectural structure of the present invention as described above will be described in more detail with reference to the accompanying drawings. FIG. 5 is a schematic diagram showing the acoustic effect in the acoustic space building structure according to the present invention. Based on FIG. 5, the action related to the acoustic effect of the present invention will be described as follows. .

As described above, according to the present invention, the acoustic space 200 is formed in the central part of the architectural plane so as to be surrounded by the sound reflecting wall 20 and the sound guiding blades 10, and music performances, etc., are performed in the acoustic space 200. When holding an outdoor event or event, the sound emitted from the central stage section is amplified by the sound focusing and resonance phenomena caused by the above-mentioned structure of the sound guide blade 10 and the sound reflection wall 20. Therefore, the main technical feature is to enable the audience on the upper part of the rooftop viewing floor 30 to hear the pure original sound at a satisfactory volume without the need for additional loudspeaker equipment such as speakers and amplifiers. Invention.

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 vanes 10 and the sound reflecting wall 20, the original sound S0 of the performance spreads, The sound collides with the sound reflection wall 20 and is reflected, thereby generating a reflected sound S1. Here, as shown in FIG. 1, the sound reflecting wall 20 is installed so as to have a circular shape on the plane with the center point CP on the reference floor surface 100 as the center of the arc. S1 basically returns to the center of the stage where the original sound S0 was generated.

However, as described above, when the original stage sound S0 is reflected by the acoustic reflection wall 20, even if the acoustic reflection wall 20 has a smooth surface suitable for sound reflection, all of the reflected sound S1 is The sound does not exactly return to the center of the stage, and in reality, diffused reflection occurs on the surface of the sound reflecting wall 20 only in a certain portion, resulting in dispersion of the reflected sound. On the other hand, in the present invention, as described above, the sound guide vane plate 10 is installed in a shape that protrudes from the inner side of the acoustic reflection wall 20 by a length corresponding to a certain length. As described above, the reflected sound that is diffusely reflected and scattered on the surface of the acoustic reflection wall 20 is guided by the sound guide vanes 10 in the projecting direction, thereby suppressing the dispersion of the reflected sound S1 toward the center of the stage. (In particular, in the present invention, the action of guiding and concentrating the reflected sound to the center is called a sound focusing action and used.).

Due to the sound focusing action, which is the main technical feature of the present invention, as described above, the reflected sound S1, which is concentrated in the central part of the stage and reflected back, is returned from the original stage sound S0 and other directions. While encountering the incoming reflected sound and causing interference and resonance, a resonant sound S2 is generated, and this resonant sound S2 escapes to the upper part of the acoustic space 200 and extends to the outside of the upper part of the acoustic reflection wall 20. It will reach and be heard by spectators viewing on the rooftop viewing floor 30 . Therefore, the audience on the rooftop viewing floor 30 can hear the direct stage sound S0 together with the resonance sound S2 and reverberation sound generated by the reflection and resonance of the sound inside the acoustic space 200. Therefore, it is possible to appreciate the performance with sound that is three-dimensional and rich in reverberation and reverberation, just like an indoor performance.

In addition, according to the present invention as described above, unlike the existing outdoor performances in which the original sound of the stage spreads to the outside, resulting in a significant loss of volume, a separate loudspeaker is required. In the present invention, the original stage sound S0 does not immediately spread to the outside, but is reflected through the sound reflecting wall 20 to generate the resonance sound S2 inside the certain acoustic space 200 and deliver it to the audience. The sound energy can be greatly reduced, so that according to the acoustic space architectural structure of the present invention, sufficient volume can be obtained without acoustic equipment such as speakers, and the audience can enjoy the sound of the stage performance. has the advantage of being able to appreciate the pure original sound.

That is, as shown in FIGS. 2 and 5 as described above, according to the acoustic space architectural structure of the present invention, the acoustic reflection wall 20 is positioned at a height lower than the rooftop viewing floor 30 where the audience is viewing. An enclosed acoustic space 200 is formed, and such an acoustic space 200 in the present invention amplifies the original sound of the stage to a loud sound by functioning like a resonator of a musical instrument. , on the rooftop viewing floor 30 above. Therefore, when the sound of a performance is emitted from the central sound source stage section 50, the sound of the performance is confined in the acoustic space 200 and does not immediately escape. After being amplified into a loud sound by the interference and overlapping phenomenon, it escapes to the upper part of the acoustic space 200 and is heard by the audience on the rooftop viewing floor 30, along with the reverberating sound caused by repeated sound reflections. By listening one after another as if they are connected without interruption, it is possible to hear the sound with a clear three-dimensional effect as the pure original sound that has not been through audio equipment. of.

On the other hand, in relation to reverberant sound as described above, in general, when there is almost no absorption of the original sound when the sound is reflected, and the reverberant sound consists only of reflected sound, the reverberation is very intense and the reverberation time is prolonged, making it look like an echo. There may be a phenomenon (cave effect) in which the sound slows down as if it were being applied. Therefore, the present invention provides a certain level of sound absorption performance to the sound guide vanes 10 connected to the sound reflection wall 20 that reflects the sound as described above. Therefore, it is proposed as a more preferable configuration related to the present invention that the optimum reverberant sound can be produced by adjusting sound absorption and reflection.

That is, according to the preferred configuration of the present invention as described above, the sound guide vanes 10 are made of a material having a higher sound absorption coefficient than the sound reflection wall 20, or are made of a sound absorbing finishing material on the surface. (or by coating) to form a sound absorbing finish layer, when the original stage sound S0 collides with the sound reflecting wall 20 and is reflected, a part of the sound is absorbed by the sound guiding blade 10 By adjusting the sound absorption performance of the acoustic guide vanes 10, the intensity of the reflected sound S1 can be appropriately adjusted to optimize the reverberation sound. be possible.

Therefore, according to the technical features of the present invention as described above, in an event such as a music performance held in an open outdoor space, the sound emitted from the central stage section is automatically generated by sound focusing and resonance phenomena. By amplifying the sound, it becomes possible for the audience to hear the pure original sound at a satisfactory volume without the need for a separate speaker or amplifier. As you can see, overcoming the fact that the sound is perceived as dry and weak, which has been pointed out as a drawback of outdoor performances, it is three-dimensional and has a rich feeling as in indoor performances. In addition, there is an advantage that it is possible to create an optimum reverberation sound with an appropriate reverberation and a clear sense of transparency by making an appropriate harmony of sound reflection, sound absorption, and interference.

In the above, the present invention has been described in detail with reference to the embodiments described above. It is understood that various substitutions, additions and diversions are possible within the scope of the present invention, and such modified embodiments also belong to the protection scope of the present invention as defined by the claims. should.

INDUSTRIAL APPLICABILITY The present invention is a technology related to the field of architecture and construction, and is applicable to the design and construction of building structures.

10: Acoustic guide vanes 15: Horizontal acoustic guide vanes 20: Acoustic reflection wall 30: Rooftop viewing floor 50: Sound source stage section 100: Standard floor surface 200: Acoustic space S0: Original stage sound S1: Reflected sound S2: Resonance sound

Claims (10)

A building structure with an open top that is constructed and installed on a standard floor surface,
One point on the reference floor is set as the center point on the plane,
Standing above the reference floor at a predetermined interval, radially arranged at a distance from the center point on the reference floor, and having a curved shape when viewed from above on the plane as a whole a large number of acoustic guide blades installed to provide
A wall structure erected and installed on the reference floor surface, which is connected to the sound guide slats and has the same curved shape on the plane as the sound guide slats, an acoustic reflecting wall installed to form a certain acoustic space;
a rooftop viewing floor installed at a certain height from the reference floor and extending in the opposite direction to the central point on the plane of the reference floor above the acoustic reflection wall; ,
and
The sound guide slat is a columnar member whose cross section has long sides and short sides and is vertically connected. It is installed in a radial layout so as to face the center point on the plane of the surface, and all or part of the cross section of the acoustic guide blades extends from the surface of the acoustic reflecting wall to the center on the plane. An acoustic space architectural structure characterized by being installed so as to protrude by a certain length in a direction facing a point. 2. The architectural structure of acoustic space according to claim 1, further comprising a sound source stage section above the center point of the reference floor. When viewed from above, the sound guide blades are arranged equidistant from the center point of the reference floor, so that when viewed from above, the sound guide blades are in the shape of a perfect circle on the plane, or a circle with one side partially open. 2. The acoustic space building structure according to claim 1, which is installed in an arc shape. 2. The architectural structure of acoustic space according to claim 1, wherein the sound guiding slats are made of a material having a higher sound absorption coefficient than the sound reflecting wall. 2. The method according to claim 1, further comprising a sound absorbing finish layer formed on the surface of the sound guide slats and made of a material having a higher sound absorption coefficient than the sound reflecting wall. An acoustic space architectural structure as described. The acoustic guide blades are entirely made of wood or have wooden plates attached to their surfaces, and the acoustic reflecting walls are made of glass panels. Item 1. The acoustic space architectural structure according to item 1. 7. The sound guide slats according to any one of claims 1 to 6, further comprising horizontal sound guide slats having the same cross-sectional shape as the sound guide slats and horizontally installed between the sound guide slats. Acoustic space building structure according to the paragraph. 7. The length by which a part of the cross section of the acoustic guide blade protrudes from the surface of the acoustic reflecting wall is 8 to 30 cm, according to any one of claims 1 to 6. Acoustic space architectural structure. When the sound-guiding blade plate has an arc shape with one side partially opened on the plane when viewed from above, the angle range of the opening is 0° to 120° from the center of the arc. 4. The acoustic space building structure according to claim 3, which is installed so as to be within the range of °. The distance from the center of the sound source stage to the sound reflecting wall is 15 to 30 m, the height of the sound guide vane is 3 to 8 m, and a part of the cross section of the sound guide vane is the sound reflector. The architectural structure for acoustic space according to any one of claims 1 to 6, wherein the projection length of the reflecting wall with respect to the plane is 8 to 30 cm.