Acoustic assembly

Abstract

The invention relates to an acoustic arrangement for sound absorption, comprising at least two sound-absorbing acoustic modules (2), wherein each acoustic module (2) has a front side (3) and a back side (4) which are connected to each other around their narrow sides (5), wherein at least one fixed connection (6), preferably at least two fixed connections (6), is provided on each narrow side (5), and comprising a first holding device (7) for attaching at least one acoustic module (2), wherein a first acoustic module (2) can be attached to the first holding device (7) via the at least one fixed connection (6) of a narrow side (5) by means of a fastening device (8) and hangs down from the first holding device (7) in a vertical orientation when attached.It is proposed that one of the narrow sides (5) of the first acoustic module (2) facing away from the first holding device (7) and one narrow side (5) of at least one further acoustic module (2) are arranged opposite each other and spaced apart from each other in the assembled state, and that the first acoustic module (2) and the respective further acoustic module (2) can be connected to each other via the connections (6) of the opposite narrow sides (5) by means of a fastening device (8).

Description

[0001] The invention relates to an acoustic arrangement for sound absorption according to the preamble of claim 1.

[0002] The acoustic arrangement in question is therefore used to improve acoustics and to absorb sound, for example in offices, meeting rooms, exhibition rooms or sales rooms.

[0003] In modern architecture, the principle of the open floor plan is often used for functional spatial division. Here, the entire enclosed volume is viewed as a coherent continuum without creating separate sub-spaces. Rather, individual rooms flow into one another and are separated only by visual elements. The open floor plan is intended to promote communication and visual connections between employees and / or customers, particularly in offices, meeting rooms, or sales rooms, as well as at trade fairs and museums, and to create synergy effects. Furthermore, an open floor plan also leads to a more generous room volume and creates a feeling of spaciousness. However, this type of room design often leads to unpleasant acoustic effects, such as a constant background noise.

[0004] The acoustics of a room depend on sound propagation and sound attenuation. Sound attenuation is primarily defined as the obstruction of sound propagation through sound absorption. Sound absorption converts sound energy into inaudible vibration energy, thus reducing the reflection of sound energy from a surface. Elements with open pores and a large internal surface area have proven particularly advantageous in this regard. If sound penetrates the cavities created by the porosity, it is absorbed, dispersed, and thus absorbed.

[0005] The acoustic arrangement known from DE 10 2010 012 202 A1 comprises mobile partition wall elements that are used simultaneously for sound absorption and room division. For sound absorption, the partition wall elements have a frame construction with paneling, with a perforated acoustic panel on the paneling. To divide an entire room, several partition walls are often detachably connected to one another. The individual partition walls run on rails, allowing the rooms to be resized quickly and easily. Further acoustic arrangements are described in KR 2011 0060177 A and US Pat. No. 4,107,887 A.

[0006] The disadvantage of this solution is that the movable partition walls cannot be positioned flexibly within the room, as they are always tied to the predefined rails. Furthermore, the partition walls create individually separated spaces, disrupting the open design of a room.

[0007] DE 197 54 107 C1 describes an acoustic arrangement in which a large number of individual perforated panels or micro-perforated foils are arranged one behind the other at a certain distance and suspended from a ceiling for sound absorption.

[0008] The catalog "Acoustic panels MODUS" dated January 19, 2014, discloses a generic acoustic arrangement for sound absorption with acoustic modules.

[0009] The disadvantage here is that a large number of elements are required to ensure sound absorption. This involves considerable installation effort. Furthermore, the individual elements do not allow for the division of a large volume into interconnected spaces.

[0010] The invention is based on the problem of designing and developing the known acoustic arrangement in such a way that the sound in an open space can be absorbed in a simple manner.

[0011] The above problem is solved in an acoustic arrangement for sound absorption according to the preamble of claim 1 by the features of the characterizing part of claim 1.

[0012] The proposed solution is based on the idea that acoustic modules suspended vertically, i.e., in the direction of gravity, from a support structure, such as a ceiling, can be used as room dividers while simultaneously ensuring sound absorption within a room. This is particularly advantageous in spaces based on the open floor plan principle.

[0013] At least one further acoustic module is arranged horizontally adjacent to the first acoustic module. The respective further acoustic module can be fastened to the first holding device via the at least one stationary connection of a narrow side by means of a fastening device and, in the fastened state, hangs vertically from the first holding device. In the assembled state, a narrow side of the first acoustic module and a narrow side of the horizontally adjacent further acoustic module are arranged opposite one another and spaced from one another, wherein the first acoustic module and the horizontally adjacent further acoustic module are connected to one another via the connections of the opposing narrow sides by means of a fastening device.

[0014] Such an acoustic arrangement ensures the spaciousness of the open spaces while positively influencing the room acoustics. Accordingly, the rooms can be designed flexibly and openly without creating a persistent and disturbing noise level. Due to the modular design of the acoustic arrangement, it can be adapted to almost any spatial requirements.

[0015] It is conceivable for several acoustic modules to be arranged horizontally, hanging next to each other in a row. This allows the size of the arrangement to be easily adapted to the customer's specific wishes, the spatial conditions, and the acoustic requirements of the respective acoustic arrangement.

[0016] In this case, it is preferably the case according to claim 2 that at least one further acoustic module is arranged vertically adjacent below the respective acoustic module, which hangs horizontally next to or vertically below the first acoustic module.

[0017] It is conceivable to arrange several acoustic modules vertically in a row, hanging one below the other. Furthermore, it is possible to combine acoustic modules hung horizontally next to each other and vertically one below the other. The more acoustic modules are combined and connected, the better and easier it is to adapt the acoustics of a room and its division to its specific use.

[0018] It's also conceivable to omit individual centrally located acoustic modules or replace them with non-acoustically effective ones. This loosens up the spatial design, allowing the division and acoustics of a room to be adapted to the customer's specific use. A non-acoustically effective module could be, for example, a screen, a picture frame, or a Plexiglas module.

[0019] In principle, according to claim 3, a second support device, e.g., a floor, can be provided opposite the first support device, e.g., a ceiling. The at least two acoustic modules are arranged between the first support device and the second support device. At least one acoustic module, which is different from the first acoustic module, can be attached to the at least one stationary connection of a narrow side of a second support device by means of a fastening device.

[0020] This allows the acoustic assembly to be clamped between the first and second fastening devices. This clamping reduces the back-and-forth movement of the acoustic assembly in the event of a gust of wind or impact on the acoustic modules by passing people, etc.

[0021] According to claim 4, the fastening device comprises a connecting means for connecting the connections to the fastening device. This connecting means connects the connections to one another in a form-fitting and / or force-fitting manner.

[0022] According to a preferred embodiment according to claim 4, a rigid connecting means or a flexible connecting means is provided as the connecting means. A rigid connecting means is understood in particular to be a rod, a bolt, or a sleeve. While a flexible connecting means is understood in particular to be a wire rope, a synthetic fiber rope, or a natural fiber rope. Flexible connecting means refers to a dimensionally unstable connection.

[0023] In order to ensure simple assembly and to ensure that each acoustic module can be mounted in as many different positions as possible in the acoustic arrangement, it is particularly preferred according to claim 5 if the connection or connections are arranged at the same height on each narrow side of a respective acoustic module.

[0024] Furthermore, according to claim 6, it is particularly preferred if the connections of opposing narrow sides of adjacent acoustic modules are located opposite each other. This supports the modular design of the acoustic arrangement and simplifies assembly.

[0025] In the preferred embodiment according to claim 7, the opposing narrow sides of all adjacent acoustic modules run parallel to each other. Alternatively or additionally, the horizontal and / or vertical spacing of all adjacent acoustic modules is the same.

[0026] To positively influence the room acoustics, it is advantageous according to claim 8 if the material layer forming the front side and / or the material layer forming the rear side of the respective acoustic module each has a plurality of continuous openings. Sound can enter these openings, thereby influencing the reverberation time and reducing the sound.

[0027] In principle, according to claim 9, it can also be provided that the front, rear, and narrow sides, or a frame structure running along the narrow side, of the acoustic module enclose at least one cavity. The openings in the material layer forming the front side and / or the openings in the material layer forming the rear side open into the at least one cavity. If sound enters the cavity through the openings, its escape is prevented, thus dampening the sound.

[0028] In a preferred embodiment according to claim 10, the at least two acoustic modules have the same or different geometry in a section parallel to the front and / or back. It is preferred if the respective acoustic module has the geometry of a circle, an ellipse, or a polygon, in particular a rectangle, in the section parallel to the front and / or back.

[0029] The size and geometry of each acoustic module, and thus the acoustic arrangement, can be adapted to the spatial conditions. This allows for any combination of sizes and geometries of the acoustic modules, allowing a customer-specific design of the acoustic arrangement to be adapted to the acoustic requirements.

[0030] According to the embodiment according to claim 11, it is particularly preferred that the at least two acoustic modules have a length in the longitudinal direction and a width in the width direction in a ratio of the length to the width of the respective acoustic module of 2.0 to 2.25, or 1.2 to 1.4, or 0.9 to 1.1, or 0.7 to 0.8, or 0.4 to 0.5. This enables a diverse combination of individual acoustic modules of different or identical geometries and dimensions.

[0031] It is also possible to arrange the respective acoustic modules in the acoustic arrangement rotated by 90° around an axis orthogonal to the front or the back, whereby the ratio of the length to the width of the respective acoustic module can then also change.

[0032] According to the embodiment according to claim 12, it is advantageous if the narrow sides have a depth of 20 to 100 mm, preferably 30 to 80 mm, more preferably 40 to 60 mm, in the depth direction orthogonal to the front side and / or the rear side.

[0033] In the further preferred embodiment according to claim 12, the material layer forming the front side and / or the material layer forming the back side each have a depth of 2 to 15 mm, preferably 3 to 10 mm, more preferably 4 to 6 mm, in the depth direction.

[0034] According to an embodiment according to claim 13, the distance between the opposite narrow sides of the respective acoustic modules is preferably 50 to 200 mm, preferably 70 to 150 mm, more preferably 90 to 120 mm. Furthermore, it is advantageous if the horizontal distance and / or the vertical distance is the same for all adjacent acoustic modules.

[0035] The distance between the respective acoustic modules ensures the open spatial design of the desired rooms without having to forego sound-absorbing solutions.

[0036] In principle, it can be advantageous according to claim 14 if the material layer forming the front side and / or the material layer forming the rear side and / or the material layer forming the narrow side and / or the frame construction of the respective acoustic module is or are made of a chipboard and / or a fiberboard, in particular a medium-density fiberboard (MDF) with soft fiber wool, and / or an OSB board and / or a veneer and / or a laminate, in particular an HPL laminate.

[0037] Alternatively, it may be advantageous if the material layer forming the front side and / or the material layer forming the rear side and / or the material layer forming the narrow side and / or the frame construction of the respective acoustic module comprises a chipboard and / or a fiberboard, in particular a medium-density fiberboard (MDF) with soft fiber wool, and / or an OSB board and / or a veneer and / or a laminate, in particular an HPL laminate.

[0038] Medium-density fiberboard has a porous structure and is not compressed too tightly. This results in a low weight and also improves the acoustic effect. A laminate is a composite material or laminate consisting of several layers of different materials, especially several layers of paper with a hardening synthetic resin. HPL is a special type of laminate and stands for "high-pressure laminate," meaning a laminate created by high-pressure compression.

[0039] In the preferred embodiment according to claim 15, the front and / or back of the respective acoustic module has a smooth or structured surface or a pattern. It is particularly advantageous if the orientation of the structure or pattern of neighboring acoustic modules is different.

[0040] By adjusting the surface texture of each acoustic module, the acoustics of the room and thus the sound absorption can be further improved and adjusted.

[0041] In the following, the invention is explained with reference to a drawing which merely represents an exemplary embodiment. In the drawing, Fig.1 a proposed acoustic arrangement with several acoustic modules, Fig. 2 a cross-section through acoustic modules of different dimensions.

[0042] The acoustic arrangement 1 for sound absorption shown in the drawing has at least two sound-absorbing acoustic modules 2. Each acoustic module is plate-shaped and acoustically effective. It has a front side 3 and a rear side 4, which are connected to one another circumferentially via narrow sides 5. At least one stationary connection 6 is provided on each narrow side 5 of the respective acoustic module 2. Here and preferably, at least two stationary connections 6 are provided on each narrow side 5. Furthermore, the acoustic arrangement 1 has a first holding device 7, here a ceiling beam, a room ceiling, or the like, for attaching at least one acoustic module 2. The first acoustic module 2 can be attached to the first holding device 7 by means of a fastening device 8 via the at least one stationary connection 6 of a narrow side 5.In the attached state, a first acoustic module 2 hangs vertically from the holding device 7.

[0043] In the illustrated and, in this respect, preferred embodiment, a narrow side 5 of the first acoustic module 2 facing away from the first holding device 7 and a narrow side 5 of at least one further acoustic module 2 are arranged opposite one another and spaced apart from one another in the assembled state. Furthermore, the first acoustic module 2 and the respective further acoustic module 2 are connected to one another via the connections 6 of the opposing narrow sides 5 by means of a fastening device 8.

[0044] Such a suspended modular acoustic arrangement 1 increases flexibility in the design of office spaces, for example. This not only positively influences the acoustics of a room, but can also divide the rooms without compromising their spaciousness.

[0045] According to the proposal, at least one additional acoustic module 2 is arranged horizontally adjacent to the first acoustic module 2. The respective additional acoustic module 2 can be attached to the first holding device 7 via a narrow side 5 by means of a fastening device 8.

[0046] Furthermore, it may be preferred that at least one further acoustic module 2 is arranged vertically adjacent to the respective further acoustic module 2.

[0047] In the illustrated and preferred embodiment according to Fig. 1 , it is preferably provided that several acoustic modules 2 are arranged horizontally adjacent to one another, while at the same time several acoustic modules 2 are arranged vertically adjacent to one another. Such a combination of acoustic modules 2 arranged horizontally adjacent to one another and vertically suspended below one another results in an acoustic arrangement 1 that enables a simple room division and adaptation of the acoustics.

[0048] It is particularly preferred if, as in Fig. 1 shown, a second holding device 9, e.g. a floor, is provided opposite the first holding device 7, which enables bracing of the acoustic arrangement 1 to prevent unwanted back and forth movement of the acoustic arrangement 1. The at least two acoustic modules 2 are arranged between the first holding device 7 and the second holding device 9. At least one acoustic module 2, which is different from the first acoustic module 2, can be fastened to the second holding device 9 via the at least one stationary connection 6 of a narrow side 5 by means of a fastening device 8. The fastening device 8 preferably has a connecting means 10 which connects the connections 6 to one another in a form-fitting manner. Alternatively or additionally, the connections 6 can be connected to one another in a force-fitting manner.

[0049] The connecting means 10 can be mechanical or electrical. A mechanical connection can be, for example, a screwed, crimped, clamped, pressed, clamped, or glued connection. The electrical connection can be provided separately or additionally. For example, a lighting device can be integrated into the respective acoustic module 2.

[0050] Such a connection increases the stability of the hanging acoustic arrangement 1, in particular when the respective acoustic modules 2 are connected to one another vertically and horizontally via the connecting means 10 of the fastening device 8.

[0051] In the illustrated and, in this respect, preferred embodiment, a flexible connecting means 10, in particular a wire rope, a synthetic fiber rope, or a natural rope, is provided. However, it may also be advantageous to provide a rigid connecting means 10, in particular a rod, a bolt, or a sleeve.

[0052] It is particularly preferred if, as in Fig. 1 As shown, the arrangement of the connection 6 or connections 6 is the same on each narrow side 5 of a respective acoustic module 2. This enables simplified assembly, since the arrangement of the connections 6 and thus the assignment to another acoustic module 2 is independent of the side.

[0053] A simplified assembly is particularly advantageous if the arrangement of the connections 6 of opposite narrow sides 5a, 5b of adjacent acoustic modules 2 are opposite one another.

[0054] Here, and preferably, it is provided that the opposing narrow sides 5a, 5b of all adjacent acoustic modules 2 run parallel to each other. Alternatively or additionally, it may be advantageous if the horizontal distance A h and / or the vertical distance A v of all adjacent acoustic modules 2 is the same.

[0055] The room acoustics can be influenced particularly advantageously if the material layer 11 forming the front side 3 and / or the material layer 12 forming the rear side 4 of the respective acoustic module 2 each has a plurality of continuous openings 13 ( Fig. 2b )). This allows the sound to enter the openings 13, which affects the reverberation time and reduces the sound.

[0056] As in Fig. 2 As shown, it is preferably provided here that the front side 3, the rear side 4, and the narrow side 5 and / or a frame structure 14 of the acoustic module 2 running along the narrow sides 5 enclose at least one cavity 15. The openings 13 of the material layer 11 forming the front side 3 and / or the openings 13 of the material layer 12 forming the rear side 4 open into the at least one cavity 15.

[0057] By the entry of the sound through the openings 13 into the at least one cavity 15, the sound attenuation is improved, since at least the majority of the sound cannot escape from the cavity 15 again.

[0058] It may be advantageous for the at least two acoustic modules 2 to have the same or different geometry in a section parallel to the front 3 and / or the rear 4. Preferably, the respective acoustic module 2 has the geometry of a circle, an ellipse, or a polygon in a section parallel to the front 3 and / or the rear 4. Here, and preferably, the respective acoustic modules 2 have the geometry of a rectangle.

[0059] With regard to the dimensions of the acoustic modules 2, it is advantageous if the ratio of a length L in the length direction X and a width B in the width direction Y of the at least two acoustic modules 2 is, for example, 2.0 to 2.25 or 1.2 to 1.4 or 0.9 to 1.1 or 0.7 to 0.8 or 0.4 to 0.5. The length L is a dimension in the length direction X, wherein the length direction X runs vertically and parallel to the front side 3 or the back side 4 of the acoustic module 2. The width B is a dimension in the width direction Y, wherein the width direction Y runs horizontally and parallel to the front side 3 or the back side 4 of the respective acoustic module 2. The length direction X is perpendicular to the width direction B.

[0060] As in Fig. 1As shown, it is possible to combine acoustic modules with different ratios of length L to width B. It is also possible to rotate some acoustic modules 2 by 90° and integrate them into the acoustic arrangement 1. The acoustic modules 2 can be modularly combined to form an acoustic arrangement 1, depending on the desired acoustics in the room and the spatial conditions.

[0061] The narrow sides 5 have a depth T 1 in the depth direction Z orthogonal to the front side 3 and / or the rear side 4. The depth T 1 is preferably 20 to 100 mm, more preferably 30 to 80 mm, more preferably 40 to 60 mm. The depth direction Z is perpendicular to the length direction X and the width direction Y.

[0062] The material layer 11 forming the front side 3 and the material layer 12 forming the rear side 4 also each have a depth T 2 in the depth direction Z. Here, too, the depth direction Z is perpendicular to the length direction X and width direction Y. The depth T 2 of the respective material layer 11, 12 is preferably 2 to 15 mm, more preferably 3 to 10 mm, more preferably 4 to 6 mm.

[0063] Based on the depth T2, the path of the sound through the openings 13 into the cavity 15 can be determined. This allows the sound absorption of the respective acoustic module 2 to be easily adapted to the acoustic requirements of the respective room, for example, an office space or an exhibition space.

[0064] It is particularly advantageous for the spatial design if the horizontal distance A h and / or the vertical distance A v between the opposite narrow sides 5a, 5b of the respective acoustic modules 2 is preferably 50 to 200 mm, more preferably 70 to 150 mm, more preferably 90 to 120 mm. Here and preferably, the horizontal distance A h and / or the vertical distance A v is the same for all adjacent acoustic modules 2.

[0065] In order to ensure simple and cost-effective production of the respective acoustic modules 2 of the acoustic arrangement 1, it is particularly advantageous if the material layer 11 forming the front side 3 and / or the material layer 12 forming the rear side 4 and / or the material layer 16 forming the narrow side 5 and / or the frame construction 14 of the respective acoustic module 2 is made of a chipboard and / or fiberboard and / or an OSB board and / or a veneer and / or a laminate.

[0066] It may also be advantageous if the front 3 and / or the back 4 of the respective acoustic module 2 have a smooth or structured surface or pattern. The orientation of the structure or pattern of neighboring acoustic modules 2 may be different.

Claims

1. Acoustic assembly for sound absorption, comprising at least three sound-absorbing acoustic modules (2), each acoustic module (2) having a front side (3) and a back side (4) interconnected around the edge via narrow sides (5), wherein at least one positionally fixed connection (6), preferably at least two positionally fixed connections (6), is / are provided on each narrow side (5), and comprising a first holding device (7) for attaching at least one acoustic module (2), a first acoustic module (2) via the at least one positionally fixed connection (6) on a narrow side (5) being attachable to the first holding device (7) by means of an attachment device (8) and, in the attached state, being suspended from the first holding device (7) in a vertical orientation, wherein multiple acoustic modules (2) are suspended one below another in a row in a vertical orientation, wherein a narrow side (5), remote from the first holding device (7), of the first acoustic module (2) and a narrow side (5) of at least one further acoustic module (2) face and are spaced apart from one another in the mounted state and wherein the first acoustic module (2) and the respective further acoustic module (2) are interconnected via the connections (6) of the mutually facing narrow sides (5) by means of an attachment device (8), characterized in that at least one further acoustic module (2) is horizontally adjacently next to the first acoustic module (2), the respective further acoustic module (2) via the at least one positionally fixed connection (6) on a narrow side (5) being attachable to the first holding device (7) by means of an attachment device (8) and, in the attached state, being suspended from the first holding device (7) in a vertical orientation, in that a narrow side (5) of the first acoustic module (2) and a narrow side (5) of the horizontally adjacent further acoustic module (2) face and are spaced apart from one another in the mounted state, wherein the first acoustic module (2) and the horizontally adjacent further acoustic module (2) are interconnected via the connections (6) of the mutually facing narrow sides (5) by means of an attachment device (8).

2. Acoustic assembly according to Claim 1, characterized in that at least one further acoustic module (2) is vertically adjacently below the respective further acoustic module (2).

3. Acoustic assembly according to Claim 1 or 2, characterized in that a second holding device (9) facing the first holding device (7) is provided, the at least two acoustic modules (2) being located between the first holding device (7) and the second holding device (9), wherein at least one acoustic module (2), which is different from the first acoustic module (2), via the at least one positionally fixed connection (6) on a narrow side (5) is attachable to the second holding device (9) by means of an attachment device (8).

4. Acoustic assembly according to one of the preceding claims, characterized in that the attachment device (8) has a connecting means (10) which interconnects the connections (6) in form-fitting and / or force-fitting fashion, preferably in that the connecting means (10) is a rigid connecting means (10), in particular a rod or a bolt or a sleeve, or a flexible connecting means (10), in particular a wire rope or a synthetic fibre rope or a natural fibre rope.

5. Acoustic assembly according to one of the preceding claims, characterized in that the at least one connection (6) on each narrow side (5, 5a, 5b) of a respective acoustic module (2) is located at the same level along the narrow side (5, 5a, 5b).

6. Acoustic assembly according to one of the preceding claims, characterized in that the connections (6) on mutually facing narrow sides (5a, 5b) of adjacent acoustic modules (2) face one another.

7. Acoustic assembly according to one of the preceding claims, characterized in that the mutually facing narrow sides (5a, 5b) of all mutually adjacent acoustic modules (2) extend parallel to one another and / or the horizontal spacing (Ah) and / or the vertical spacing (Av) of all mutually adjacent acoustic modules (2) are / is the same.

8. Acoustic assembly according to one of the preceding claims, characterized in that the material layer (11) forming the front side (3) and / or the material layer (12) forming the back side (4) of the respective acoustic module (2) has in each case a multiplicity of through-openings (13).

9. Acoustic assembly according to Claim 8, characterized in that the front side (3), the back side (4) and the narrow side (5) or a frame structure (14), extending along the narrow sides (5), of the acoustic module (2) enclose at least one cavity (15), the openings (13) in the material layer (11) forming the front side (3) and / or the openings (13) in the material layer (12) forming the back side (4) emerging into the at least one cavity (15).

10. Acoustic assembly according to one of the preceding claims, characterized in that, in a section parallel to the front side (3) and / or the back side (4), the at least two acoustic modules (2) have the same or different geometries, preferably in that, in a section parallel to the front side (3) and / or the back side (4), the respective acoustic module (2) has the geometry of a circle, an ellipse or a polygon, in particular a rectangle.

11. Acoustic assembly according to one of the preceding claims, characterized in that the at least two acoustic modules (2) have a length (L) in a length direction (X) and a width (B) in a width direction (Y), the ratio of the length (L) to the width (B) of the respective acoustic module (2) being 2.0 - 2.25 or 1.2 - 1.4 or 0.9 - 1.1 or 0.7 - 0.8 or 0.4 - 0.5.

12. Acoustic assembly according to one of the preceding claims, characterized in that the narrow sides (5) have a depth (T1) in a depth direction (Z) orthogonal to the front side (3) and / or the back side (4), the depth (T1) being 20-100 mm, preferably 30-80 mm, further preferably 40-60 mm, and / or in that the material layer (11) forming the front side (3) and / or the material layer (12) forming the back side (4) each has a depth (T2) in the depth direction (Z), the depth (T2) being 2-15 mm, preferably 3-10 mm, further preferably 4-6 mm.

13. Acoustic assembly according to one of the preceding claims, characterized in that the horizontal spacing (Ah) and / or the vertical spacing (Av) between mutually facing narrow sides (5a, 5b) of the respective acoustic modules (2) is 50 - 200 mm, preferably 70 - 150 mm, further preferably 90 - 120 mm, preferably in that the horizontal spacing (Ah) and / or the vertical spacing (Av) is the same for all mutually adjacent acoustic modules (2).

14. Acoustic assembly according to one of the preceding claims, characterized in that the material layer (11) forming the front side (3) and / or the material layer (12) forming the back side (4) and / or the material layer (16) forming the narrow side (5) and / or the frame structure (14) of the respective acoustic module (2) are / is or comprise / comprises a chipboard and / or a fibreboard, in particular a medium-density fibreboard (MDF) comprising soft fibre wool, and / or an oriented strand board, and / or a veneer and / or a laminate, in particular a high-pressure laminate.

15. Acoustic assembly according to one of the preceding claims, characterized in that the front side (3) and / or the back side (4) of the respective acoustic module (2) have / has a smooth or structured surface or a pattern, preferably in that an orientation of the structure or of the pattern of adjacent acoustic modules (2) is different.

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