Reaction acoustic transducer system

Abstract

The invention relates to an acoustic transducer system (100) comprising a full-range acoustic transducer (110) and a low-frequency acoustic transducer (120). In comparison with the prior art, a significantly improved frequency dynamics is achieved in such an acoustic transducer system, since the diaphragms (111) of the full-range acoustic transducer (110) and the low-frequency acoustic device (120) are arranged in two separate housings (150, 155) so as to have opposite emission directions, and a spatial region (122) of predetermined volume is enclosed behind each acoustic transducer by means of a respective partition wall (113).

Description

[0001] This invention relates to an acoustic transducer system having a full-frequency acoustic transducer and a low-frequency acoustic transducer.

[0002] The acoustic transducer system of this type is used in the prior art to supplement the limited spectrum of each acoustic transducer, so as to achieve the most uniform quality possible when generating the frequency components of the acoustic signal in the range of about 20 Hz to 20,000 Hz.

[0003] However, known acoustic transducer systems all suffer from the following drawback: the overall transfer function still contains frequency gaps, within which the frequencies of the broadband acoustic signal are transmitted poorly compared to adjacent frequency ranges. This results in a defective reproduction of the original acoustic signal as a whole.

[0004] Therefore, the objective of this invention is to provide an acoustic transducer system whose transfer function is more uniform and stable over a wide frequency range than that of known acoustic transducer systems.

[0005] For the type of acoustic transducer system described at the beginning, this task is solved according to the invention by arranging the diaphragms of the full-frequency acoustic transducer and the low-frequency acoustic transducer in two separate housings in a manner that radiates in opposite directions, wherein a space region with a predetermined volume behind each acoustic transducer is enclosed by means of a corresponding separating element.

[0006] The preferred embodiments of the present invention are the subject of the dependent claims, and their elements function in the sense of further improving the method as a solution to the task on which the present invention is based.

[0007] The acoustic transducer system according to the invention, through the combination of the above-described features, enables the improvement and adaptation of the transfer function of each individual acoustic transducer by largely eliminating rearward-radiated sound waves. This allows the transfer functions of the individual acoustic transducers to be combined as a whole in a seamlessly computable, designable, and optimizable manner. Therefore, the performance and sound quality of the system according to the invention are significantly superior to those of comparable-sized acoustic transducer systems in the prior art.

[0008] According to a first preferred embodiment of the acoustic transducer system of the present invention, a cavity with a predetermined volume is provided between two separating elements.

[0009] The cavity is preferably filled with a gas, such as air, and is configured such that it generates a backward counter-pressure against the vibration of the partition element of the acoustic transducer.

[0010] According to an important preferred embodiment of the acoustic transducer system of the present invention, a partition ring is installed between a partition element that encloses the space behind a full-frequency acoustic transducer and a partition element that encloses the space behind a low-frequency acoustic transducer, the partition ring having a predefined width of the cavity between the partition elements.

[0011] The separator ring is preferably constructed to taper outwards.

[0012] According to another important preferred embodiment of the acoustic transducer system of the present invention, the partition element arranged behind the full-frequency acoustic transducer is formed of an elastic or solid vibrating material and is connected to the inner surface of the relevant housing wall in a vibrating manner, and the partition element arranged behind the low-frequency acoustic transducer is also formed of an elastic or solid vibrating material and is connected to the inner surface of the relevant housing wall in a vibrating manner.

[0013] The solid material of the partition element arranged behind the low-frequency acoustic transducer is preferably formed of a multilayer composite material.

[0014] Furthermore, a connecting chamfer is preferably provided in the region where each partition element is adjacent to the inner surface of the associated housing wall. The outer surface of the connecting chamfer is preferably arranged at an angle of 15° to 65° relative to the inner wall of the housing.

[0015] As an alternative to the connecting chamfer, a concave or convex groove can also be provided in the area where each partition element is adjacent to the inner surface of the relevant housing wall.

[0016] Therefore, it is preferable to provide a groove formed as a recess in the region adjacent to the inner surface of each separating element (113, 123) and the corresponding housing wall (151, 156). This groove reduces mechanical stress and serves for precise sound guidance by effectively redirecting sound waves and ensuring a more uniform distribution of sound energy. The groove preferably has a length measured from the outside in that is 5% to 30% of the diameter of the corresponding separating element, and is configured to effectively focus sound waves and minimize unwanted interference.

[0017] For the purpose of sound guidance, the groove can be constructed in a logarithmic or parabolic shape, and can be constructed in a concave or convex shape, wherein the curvature angle of the groove is determined to be between 5° and 65°, so as to achieve targeted control of the sound waves.

[0018] For the purpose of sound guidance, the groove can be constructed as a logarithmic concave or logarithmic convex shape, or alternatively as a parabolic concave or parabolic convex shape, wherein the curvature angle of the groove can be determined to be between 5° and 65°.

[0019] Alternatively, for the purpose of sound guidance, the groove may be constructed in a parabolic concave or convex shape on one side and in a logarithmic concave or convex shape on the other side, wherein the corresponding curvature angle of the groove is determined to be between 5° and 65°.

[0020] The separating elements (113, 123) can be formed, for example, by separating walls (1131, 1231).

[0021] The separating elements (113, 123) preferably comprise a diaphragm (241) supported in a vibratory manner, the support of which is elastic, the elasticity being determined to efficiently convert acoustic energy into kinetic energy. The diaphragm may be configured in a logarithmic or parabolic shape, convex or concave, to ensure optimal vibration adaptation and acoustic control, and is made of composite materials.

[0022] In addition, the separating element (113, 123) may have a silencing pressure chamber (240) comprising a diaphragm (241) supported in a vibrating support (242) or a folding ring (242), and a sealing plate (243) provided with a valve (244), wherein the internal pressure of the pressure chamber can be adjusted by the valve (244).

[0023] The folds are preferably provided with the same or different structures that affect the vibration behavior.

[0024] For the purpose of sound guidance, the folded ring may include a recess configured in a logarithmic or parabolic shape, or a concave or convex shape, wherein the curvature angle of the folded ring is determined to be between 5° and 65°.

[0025] Alternatively, for the purpose of sound guidance, the fold may include a recess configured as parabolic or logarithmic, concave or convex, wherein the curvature angle of the fold is determined to be between 5° and 65°.

[0026] Alternatively, for the purpose of sound guidance, the fold may include a recess configured as a parabolic concave or convex shape on one side and a recess configured as a logarithmic concave or convex shape on the other side, wherein the corresponding curvature angle of the fold is determined to be between 5° and 65°.

[0027] Parabolic geometry, or logarithmic form, is here constructed to precisely focus sound waves and guide them to a logarithmic absorber, thus ensuring the interaction of acoustic fits while avoiding linear forms.

[0028] In a simplified embodiment of the acoustic transducer system according to the present invention, the separating element is formed by a separating wall.

[0029] In a particularly effective embodiment of the acoustic transducer system according to the invention, the separating element comprises a diaphragm supported in a vibratory manner, the support of which is elastic, the elasticity being determined to be capable of efficiently converting acoustic energy into kinetic energy.

[0030] The separating element here particularly has a silencing pressure chamber, which includes a diaphragm supported in a vibrating support (folded ring), and a sealing plate with a valve provided opposite to the diaphragm, wherein the internal pressure of the pressure chamber can be adjusted by the valve.

[0031] A pressure chamber ring is preferably provided between the diaphragm and the sealing plate, wherein a connecting chamfer or groove is provided in a manner similar to a partition wall in the region where the pressure chamber ring is adjacent to the inner surface of the relevant housing wall.

[0032] In another preferred embodiment of the acoustic transducer system according to the present invention, in order to further reduce the acoustic waves radiated rearward into the housing by each acoustic transducer, a logarithmic acoustic absorber is arranged behind each acoustic transducer.

[0033] The sound absorber can be held within the housing, for example, by means of a cross-shaped connecting rib, wherein the tip of the sound absorber is firmly connected to the center of the cross-shaped connecting rib, and the end of the connecting rib away from the center is firmly connected to the inner wall of the housing.

[0034] The acoustic absorbers are preferably constructed in a conical shape and arranged in the housing such that the tip of each absorber is positioned near the rear side of each acoustic transducer.

[0035] Furthermore, the base surface of the absorber, with its open structure opposite to the tip, is preferably arranged near the corresponding separating element. The associated housing is preferably constructed in a cylindrical shape.

[0036] According to another preferred embodiment of the acoustic transducer system of the present invention, the acoustic absorber includes an absorber having an inlet opening for the entry of acoustic waves to be attenuated and an outlet opening opposite the inlet opening. The absorber has a first end in the form of a tip near the inlet opening and another end opposite the first end near the outlet opening, the other end being in the form of an open base surface. The first end and the other end are connected to each other by a central axis. One or more open or closed acoustic guide walls are formed laterally to the central axis between the first end and the other end. The acoustic guide walls begin near the central axis at the inlet opening, increase in width outward toward the other end, and terminate at a terminating edge in the region of the other end. The starting point of the terminating edge is adjacent to the central axis, and its ending point is arranged at a predetermined distance from the central axis.

[0037] The width of the relevant acoustic guide wall preferably increases linearly, logarithmically, or parabolically from the inlet opening near the central axis toward the other end, wherein the first end of the absorber is opposite the endpoint of the terminating edge away from the central axis by a preferably straight connecting line, and wherein the corresponding outer edge of the acoustic guide wall lies on the connecting line.

[0038] The following provides a brief definition of the various components of this invention and their functions.

[0039] Full-range acoustic transducer (110) and low-frequency acoustic transducer (120):

[0040] These acoustic transducers are arranged in separate housings and radiate in opposite directions to avoid destructive interactions.

[0041] - Full-range acoustic transducers cover high and mid frequencies up to low frequencies, while low-frequency acoustic transducers are responsible for particularly low frequencies.

[0042] Separator element (113, 123):

[0043] These separating elements divide the rear areas of the full-frequency acoustic transducer and the low-frequency acoustic transducer and are installed in the respective housings.

[0044] - The partition element of a full-frequency acoustic transducer can vibrate and is connected to the inner wall of the housing, while the partition element of a low-frequency acoustic transducer is rigid and made of solid material.

[0045] - The partition element of the full-frequency acoustic transducer is vibrating and can be made of solid or elastic composite material, and is connected to the inner wall of the housing in a vibrating manner; while the partition element of the low-frequency acoustic transducer can be rigid or vibrating, and can also be made of solid or elastic composite material.

[0046] - Function: They define the spatial geometry, prevent sound from propagating backward, and minimize sound transmission through structures.

[0047] Cavity (130):

[0048] - The cavities between the separating elements are filled with acoustically optimized gases, such as air.

[0049] - Function: The cavity acts as a pressure balancing space and affects the vibration of the partition element. It reduces acoustic reflections, ensures phase coherence, and prevents distortion in the acoustic spectrum without affecting the vibration of the partition element.

[0050] Separator ring (140):

[0051] - The separator ring mechanically separates the separator elements and ensures that structural acoustic vibrations are not transmitted between the housings.

[0052] - Tapered outwards: It is pointed on the outside to prevent mechanical interference between the shell walls.

[0053] Connect the chamfer (152):

[0054] - This chamfer is used to mechanically connect the partition element to the housing wall.

[0055] - Function: It stabilizes the geometry at weak points, reduces mechanical stress, and minimizes structural sound transmission by creating a clean transition zone between the partition element and the shell wall.

[0056] Groove:

[0057] - The groove is a specific acoustic design element located at the edge of the housing wall and the partition element.

[0058] - Function: It reduces mechanical stress and prevents material fatigue, while achieving effective acoustic guidance by optimally redirecting sound waves and minimizing phase shift.

[0059] Sound wave absorber (1000):

[0060] These absorbers are located behind the acoustic transducers and are logarithmic-conical in shape.

[0061] - Function: The sound absorber reduces rearward-radiated sound waves through its arrangement by effectively and without interference absorbing sound deflected by slots and partition elements or pressure chamber silencers, and avoiding reflections and frequency crosstalk. This prevents feedback and improves the clarity of the radiated sound because compression within the housing can be used without interference to generate sound.

[0062] Pressure chambers with diaphragms (240, 241, 243):

[0063] - A pressure chamber silencer with a vibrating diaphragm controls and buffers vibrations within the housing, ensuring that sound is generated without intrusive feedback or resonance.

[0064] - Function: A diaphragm with a pressure chamber absorbs sound energy and prevents rearward-radiated sound waves from affecting the sound source. The geometrically and structurally adjustable diaphragm ensures optimal vibration control, sound control, and absorption.

[0065] Cross-shaped connecting rib (170):

[0066] - The connecting rib keeps the acoustic absorber inside the housing.

[0067] - Function: It stably fixes the absorber in the optimal position behind the acoustic transducer, so that the tip of the absorber is located near the rear side of the acoustic transducer. This position is adapted to the corresponding specific acoustic flow.

[0068] Low-frequency steering:

[0069] - Function: Low-frequency steering is a key component of this system, ensuring that low frequencies arrive at the listener in a manner coherent with the mid and high frequencies. It utilizes the spatial delay of low frequencies to produce constructive interference by steering them.

[0070] - Mechanism: Low-frequency shifting is achieved through a parabolic or logarithmic housing, or simply by being close to a wall, where geometrically adapted reflections compress the bass more powerfully but without interference. This allows the low frequencies to be returned to the listener earlier and in time synchronized with higher frequencies.

[0071] - Effect: This results in improved spatial low-frequency reproduction and ensures that low frequencies are accurately and coherently integrated into the overall sound picture, thus achieving a realistic and natural sound perception.

[0072] Inertia optimization:

[0073] The natural delay in the low-frequency range is not only compensated for, but even specifically utilized to compensate for the time difference between high and low frequencies through steering. This significantly improves sonic coherence by adapting the corresponding inertia.

[0074] Achieving phase coherence through sound diversion:

[0075] - Supplement to low-frequency steering: The rotational phase position of the low-frequency range is corrected by steering, so that the low frequencies arrive in space synchronously with the higher frequencies due to the longer total path length, although they are usually only perceived more distantly and weakly due to the longer wavelength.

[0076] - Combination with inertial optimization: These two mechanisms, namely targeted low-frequency steering and targeted use of inertia, together bring enhanced error-free compression and coherent sound perception across the entire spectrum.

[0077] The acoustic transducer system according to the invention provides optimal phase coherence and minimal distortion across the entire frequency range through its precise separation of mechanical vibrations and sound waves. A separating ring mechanically isolates the housing and housing walls, a cavity ensures pressure balance through counter-pressure, and a sound absorber eliminates disruptive return sound reflections. The synergistic effect of these components ensures true and undistorted sound reproduction in multiple areas.

[0078] The acoustic transducer system according to the present invention will now be described with reference to the preferred embodiment shown in the accompanying drawings. In the drawings:

[0079] Figure 1 A schematic cross-sectional view of a preferred embodiment of the acoustic transducer system according to the present invention is shown;

[0080] Figure 2 It shows Figure 1 A side view of the partition ring according to a preferred embodiment of the acoustic transducer system of the present invention is shown.

[0081] Figure 3 It shows Figure 1 A side view of a sound wave absorber according to a preferred embodiment of the sound transducer system of the present invention is shown.

[0082] Figure 4 It shows Figure 1 A top view of a preferred embodiment of the acoustic transducer system according to the present invention is shown.

[0083] Figure 5 It shows Figure 1 A bottom view of a sound wave absorber according to a preferred embodiment of the sound transducer system of the present invention is shown.

[0084] Figure 6 A side view of a preferred embodiment of the silencing device according to the present invention is shown;

[0085] Figure 7 It shows Figure 6 The image shown is a top-angle view of the silencing device according to the present invention;

[0086] Figure 8 It shows Figure 6 The image shown is a lower oblique view of the silencing device according to the present invention;

[0087] Figure 9 A perspective view of the absorber of the system according to the present invention is shown;

[0088] Figure 10 A bottom view of the absorber of the system according to the present invention is shown.

[0089] Figures 1 to 10 The acoustic transducer system 100 shown according to the invention includes a full-frequency acoustic transducer 110 and a low-frequency acoustic transducer 120, wherein the diaphragms 111, 121 of the full-frequency acoustic transducer 110 and the low-frequency acoustic transducer 120 are arranged in two separate housings 150, 155 in a radial manner in opposite directions, and wherein a space region 112, 122 with a predetermined volume behind each acoustic transducer is enclosed by means of a corresponding partition wall 113, 123.

[0090] A closed or semi-open cavity of predetermined volume is provided between two partition walls 113 and 123. The cavity is filled with gas and configured to generate a backward counterpressure that vibrates against the partition walls 113 and 123. The partition walls 113 and 123 enclose the spatial regions 112 and 122 of the acoustic transducers 110 and 120.

[0091] A partition ring 140 is installed between the first partition wall 113 of the space region 112 behind the enclosed full-frequency acoustic transducer 110 and the second partition wall 123 of the space region 122 behind the enclosed low-frequency acoustic transducer 120. The partition ring has a predetermined width of the cavity between the partition walls 113 and 123 and is configured to taper outwards.

[0092] The partition ring 140 ensures that mechanical vibrations are not transmitted from one housing to another, thereby preventing structural sound transmission.

[0093] The partition wall 113 located behind the full-frequency acoustic transducer 110 can be formed of a vibrating material or a solid composite material, and can be connected to the inner surface of the housing wall 151 in a vibrating manner. Similarly, the partition wall 123 located behind the low-frequency acoustic transducer 120 can be made of a vibrating material or a solid composite material, and can be connected to the inner surface of the housing wall 156 in a vibrating manner or rigidly.

[0094] The solid material of the partition wall 123 arranged behind the low-frequency acoustic transducer 120 is formed of a multi-layer composite material and may have a structure.

[0095] In addition, a connecting chamfer 152 is provided in the region where each partition wall 113, 123 is adjacent to the inner surface of the housing wall 151, wherein the outer surface of the connecting chamfer 152 is arranged relative to the inner wall of the housing 150 at an angle of 15° to 65°.

[0096] A groove 1133, which is formed as a recess, is provided on the inner surface of the relevant housing walls 151 and 156 to reduce mechanical stress.

[0097] The groove 1133 has a length measured from the outside to the inside, which is 3% to 40% of the diameter of the relevant separating element.

[0098] For the purpose of sound guidance, the groove 1133 is constructed in a logarithmic or parabolic shape, concave or convex shape, wherein the curvature angle of the groove is determined to be 5° to 65°.

[0099] The separating elements 113 and 123 are formed by separating walls 1131 and 1231, which include a diaphragm 241 supported in a vibratory manner. The support of the diaphragm is elastic, and the elasticity is determined to be able to effectively convert acoustic energy into kinetic energy.

[0100] The separating elements 113 and 123 have a silencing pressure chamber 240, which includes a diaphragm 241 supported in a vibration support 242 or a folding ring 242, and a sealing plate 243 provided with a valve (244), wherein the internal pressure of the pressure chamber can be adjusted by the valve 244.

[0101] The folded ring and diaphragm are provided with structures that affect vibration behavior.

[0102] For the purpose of sound guidance, the fold includes a recess configured in a logarithmic or parabolic, concave or convex shape, wherein the curvature angle of the fold is determined to be between 5° and 65°.

[0103] The logarithmic or parabolic form is configured here to focus and guide sound waves to the logarithmic absorber in a precise and adapted manner, so as to ensure the acoustic adaptation interaction while avoiding the linear form.

[0104] according to Figures 6 to 8 In the embodiment of the acoustic transducer system according to the invention shown, each separating element 113, 123 is formed by a logarithmic or parabolic diaphragm 241 supported in a vibratory manner, the support of which is elastic, the elasticity being determined to be able to effectively convert acoustic energy into kinetic energy.

[0105] The corresponding diaphragms 241 of the partition elements 113 and 123 constructed in this way are arranged in the silencing pressure chamber 240, which on the one hand includes the diaphragm 241 supported in the vibration support 242 (folded ring), and on the other hand includes a sealing plate 243 with a valve 244 provided opposite to the diaphragm 241, wherein the internal pressure of the pressure chamber 240 can be adjusted by the valve 244 installed in the sealing plate 243.

[0106] A pressure chamber ring 223 is provided between the diaphragm 241 and the sealing plate 243, wherein a connecting chamfer (252) or groove (1142) is provided in the area where the pressure chamber ring (223) is adjacent to the inner surface of the relevant housing wall (151, 156).

[0107] To further reduce the sound waves radiated rearward into the housing 150 by each acoustic transducer, a logarithmic sound absorber 1000 is arranged behind each acoustic transducer. The absorber is held within the housing 150 by means of a cross-shaped connecting rib 170, wherein the tip 1113 of the sound absorber 1000 is firmly connected to the center of the cross-shaped connecting rib 170, and the end 172 of the connecting rib 170 away from the center 171 is firmly connected to the inner wall of the housing 150.

[0108] Each logarithmic acoustic absorber 1000 is constructed in a conical shape and arranged in the housing 150 such that the tip 1113 of each acoustic absorber 1000 is located near the rear side of each acoustic transducer 110, 120, and the base surface 1114 of the acoustic absorber 1000 opposite to the tip 1113 is located near the corresponding partition wall 113, 123.

[0109] The shell is constructed in a cylindrical shape.

[0110] The logarithmic sound wave absorber 1000 includes an absorber 1110 having an inlet opening 1111 for the entry of sound waves to be attenuated and an outlet opening 1112 opposite to the inlet opening 1111. The absorber 1110 has a first end 1113 near the inlet opening 1111 and another end 1114 opposite to the first end 1113 and near the outlet opening 1112. The first end and the other end are connected to each other by a central axis 1115. One or more acoustic guide walls 1120 are formed laterally to the central axis 1115 between the first end 1113 and the other end 1114. The acoustic guide walls begin near the central axis at the inlet opening 1111, increase in width outward toward the other end 1114, and terminate in the region of the other end 1114 at a terminating edge 1130. The starting point 1131 of the terminating edge is adjacent to the central axis 1115, and its ending point 1132 is arranged at a predetermined distance from the central axis 1115.

[0111] The width of the associated acoustic guide wall 1120 increases linearly or logarithmically from the inlet opening 1111 near the central axis toward the other end 1114, wherein the first end 1113 of the absorber 1110 is opposite the end point 1132 of the termination edge 1130 away from the central axis 1115 via a straight connecting line 1140, and wherein the corresponding outer edge of the acoustic guide wall 1120 lies on the connecting line 1140.

[0112] The embodiments of the invention described above are only for a better understanding of the teachings of the invention as defined by the claims, and the teachings themselves are not limited to these embodiments.

[0113] List of reference numerals

[0114] 100 Acoustic Transducer System

[0115] 110 Full-Range Acoustic Transducer

[0116] 111 Vibrating diaphragm

[0117] 112 Spatial Region

[0118] 113 Separating element

[0119] 1131 partition wall

[0120] 114 Rear side of acoustic transducer

[0121] 120 Low-frequency acoustic transducer

[0122] 121 Vibrating diaphragm

[0123] 122 Spatial Region

[0124] 123 Separating element

[0125] 1231 partition wall

[0126] 124 Low-frequency acoustic transducer rear side

[0127] 130 cavity

[0128] 140 Separator Ring

[0129] 150 First shell

[0130] 155 Second shell

[0131] 151 The shell wall of the first shell

[0132] 152 Connecting chamfer

[0133] 156 The shell wall of the second shell

[0134] 170 Connecting Rib

[0135] 171 Center

[0136] 172 Remote

[0137] 223 Pressure chamber ring

[0138] 240 pressure chamber

[0139] 241 Membrane

[0140] 242 Vibration support, folding ring

[0141] 243 Enclosure Panel

[0142] 244 valve

[0143] 250 closed loop

[0144] 252 Chamfered connection of pressure chamber

[0145] 1000 Sound Absorber

[0146] 1110 Absorber

[0147] 1111 Entrance opening

[0148] 1112 Exit opening

[0149] 1113 Tip, first end

[0150] 1114 Base plane, second end

[0151] 1115 Central Axis

[0152] 1120 Sound-guided wall

[0153] 1130 Termination Edge

[0154] 1131 Starting Point

[0155] 1132 Finish Line

[0156] 1133 Groove

[0157] 1140 connecting cable

Claims

1. A sound transducer system (100), comprising a full-frequency sound transducer (110) and a low-frequency sound transducer (120), characterized in that, The diaphragms (111) and (121) of the full-frequency acoustic transducer (110) and the low-frequency acoustic transducer (120) are arranged in two separate housings (150, 155) in a radial manner in opposite directions, wherein a space region (112) and (122) with a predetermined volume behind each of the acoustic transducers (110) and (120) is closed or partially closed by means of corresponding separating elements (113) and (123).

2. The acoustic transducer system (100) according to claim 1, characterized in that, A cavity (130) with a predetermined volume is provided between the two separating elements (113) and (123).

3. The acoustic transducer system (100) according to claim 2, characterized in that, The cavity (130) is filled with an acoustically optimized gas that specifically affects the vibration of the separating elements (113, 123) so that acoustic reflections are minimized and the reaction to diaphragm movement is reduced.

4. The acoustic transducer system (100) according to claim 2 or 3, characterized in that, The cavity (130) ensures the phase coherence of the sound waves and avoids distortion caused by pressure imbalance in the sound spectrum.

5. The acoustic transducer system (100) according to claim 4, characterized in that, The separating ring (140) is configured to taper outwards to prevent mechanical and acoustic interference between the housings; the tapering ring mechanically separates the separating element from the housing wall to prevent the transmission of structural acoustic vibrations.

6. The acoustic transducer system (100) according to any one of the preceding claims, characterized in that, The partition element (113) arranged behind the full-frequency acoustic transducer (110) is formed of a vibrating, solid or elastic material that is connected to the inner surface of the associated housing wall (151), and the partition element (123) arranged behind the low-frequency acoustic transducer (120) is also formed of a vibrating, solid or elastic material that is connected to the inner surface of the associated housing wall (156) in a vibrating manner.

7. The acoustic transducer system (100) according to claim 6, characterized in that, The solid or elastic material of the partition element (123) arranged behind the low-frequency acoustic transducer (120) is formed of a multilayer composite material.

8. The acoustic transducer system (100) according to claim 6 or 7, characterized in that, A connecting chamfer (152) is provided in the region where each separator element (113), (123) is adjacent to the inner surface of the associated housing wall (151, 156).

9. The acoustic transducer system (100) according to claim 8, characterized in that, The outer surface of the connecting chamfer (152) is arranged at an angle of 4° to 40° relative to the inner wall of the housing (150).

10. The acoustic transducer system (100) according to claim 6 or 7, characterized in that, A groove (1133) is provided in the region adjacent to the inner surface of the associated housing wall (151, 156) of each separating element (113, 123), which reduces mechanical stress and acoustic interference.

11. The acoustic transducer system (100) according to claim 10, characterized in that, The groove (1133) has a length measured from the outside to the inside, which is 5% to 30% of the diameter of the relevant separating element.

12. The acoustic transducer system (100) according to claim 10 or 11, characterized in that, For the purpose of sound guidance, the groove (1133) is constructed in a logarithmic shape, or a concave or convex shape, wherein the curvature angle of the groove is determined to be 5° to 65°.

13. The acoustic transducer system (100) according to claim 10 or 11, characterized in that, For the purpose of sound guidance, the groove (1133) is constructed as a parabolic concave or convex shape, wherein the curvature angle of the groove is determined to be 5° to 65°.

14. The acoustic transducer system (100) according to claim 10 or 11, characterized in that, For the purpose of sound guidance, the groove (1133) is configured as a parabolic concave or convex shape on one side and as a logarithmic concave or convex shape on the other side, wherein the corresponding curvature angle of the groove is determined to be 5° to 65°.

15. The acoustic transducer system (100) according to any one of claims 1 to 10, characterized in that, The separating elements (113, 123) are formed by separating walls (1131, 1231).

16. The acoustic transducer system (100) according to any one of claims 1 to 15, characterized in that, The separating element (113, 123) comprises a logarithmic or parabolic diaphragm (241) supported in a vibratory manner, the support of which is elastic and is determined to be capable of efficiently converting acoustic energy into kinetic energy.

17. The acoustic transducer system (100) according to claim 16, characterized in that, The separating element (113, 123) has a silencing pressure chamber (240) comprising a logarithmic or parabolic diaphragm (241) supported in a vibrating support (242) or a folded ring (242), and a sealing plate (243) provided with a valve (244), wherein the internal pressure of the pressure chamber can be adjusted by the valve (244).

18. The acoustic transducer system (100) according to claim 17, characterized in that, The folded ring is provided with a structure that affects vibration behavior.

19. The acoustic transducer system (100) according to claim 17 or 18, characterized in that, For the purpose of sound guidance, the fold includes a recess configured as a logarithmic concave or convex shape, wherein the curvature angle of the fold is determined to be between 5° and 65°.

20. The acoustic transducer system (100) according to claim 17 or 18, characterized in that, For the purpose of sound guidance, the fold includes a recess configured as a parabolic concave or convex shape, wherein the curvature angle of the fold is determined to be between 5° and 65°.

21. The acoustic transducer system (100) according to claim 17 or 18, characterized in that, For the purpose of sound guidance, the fold includes a recess configured as a parabolic concave or convex shape on one side and a recess configured as a logarithmic concave or convex shape on the other side, wherein the corresponding curvature angle of the groove is determined to be between 5° and 65°.

22. The acoustic transducer system (100) according to any one of claims 17 or 18 and 20 or 21, characterized in that, Parabolic geometry or logarithmic form is constructed to precisely focus sound waves and guide them to a logarithmic absorber in order to ensure the interaction of acoustic fits while avoiding linear forms.

23. The acoustic transducer system (100) according to any one of claims 17 to 22, characterized in that, A pressure chamber ring (223) is provided between the diaphragm (241) and the sealing plate (243), wherein a connecting chamfer (252) or groove (1133) is provided in the region where the pressure chamber ring (223) is adjacent to the inner surface of the relevant housing wall (151, 156).

24. The acoustic transducer system (100) according to any one of the preceding claims, characterized in that, To reduce the sound waves radiated rearward into the housing (150), a logarithmic sound absorber (1000) is arranged behind each acoustic transducer (110, 120).

25. The acoustic transducer system (100) according to claim 24, characterized in that, The logarithmic sound absorber (1000) is held within the housing (150, 155) by means of a cross-shaped connecting rib (170), wherein the tip (1113) of the associated sound absorber (1000) is firmly connected to the center (171) of the cross-shaped connecting rib (170).

26. The acoustic transducer system (100) according to claim 24 or 25, characterized in that, The logarithmic acoustic absorber (1000) is constructed in a conical shape and arranged in a housing (150) such that the tip (1113) of each absorber (1000) is located near the rear side (114), (124) of each acoustic transducer (110), (120).

27. The acoustic transducer system (100) according to any one of claims 24 to 26, characterized in that, The base surface (1114) of the absorber (1000) opposite to the tip (1113) is arranged near the corresponding separating elements (113), (123).

28. The acoustic transducer system (100) according to any one of claims 24 to 27, characterized in that, The relevant shell (150, 155) is constructed in a cylindrical shape.

29. The acoustic transducer system (100) according to any one of claims 24 to 28, characterized in that, The logarithmic sound wave absorber (1000) includes an absorber (1110) having an inlet opening (1111) for the sound wave to be attenuated to enter and an outlet opening (1112) opposite to the inlet opening (1111).

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