Immersive theme follow-up 3D sound field restoration system

Abstract

The invention provides an immersive theme follow-up 3D sound field restoration system, which is characterized in that a plurality of first sound boxes are uniformly arranged on a first side surface and a second side surface in a target ship lock space along the length direction respectively, and at least one second sound box is mounted in each river side area which is separated from the outside of the target ship lock space by a first preset distance; at least one third loudspeaker box is installed at the top of each inlet of the two ends of the target ship lock space; at least one fourth loudspeaker box is installed in each river side area which is separated from the outside of the target ship lock space by a second preset distance; the position detection module detects a first position of the ship body and sends the first position to the control module to determine and start a target loudspeaker box. According to the system, the position of each loudspeaker box is accurately arranged, and according to the first position of the ship body, only the nearby target loudspeaker box needs to be turned on, so that the moving effect that sound moves along with the ship body can be achieved, the sound is always kept clear, and the immersive sightseeing experience of tourists is improved.

Description

Technical Field

[0001] The present invention relates to the field of audio technology, and in particular to an immersive theme-following 3D sound field restoration system. Background Art

[0002] In the related art, a closed lock space can be constructed on the water as a landscape corridor. When tourists enter the lock space by cruise ship, they can experience ultra-high-definition naked-eye 3D dynamic audio-visual effects on the water in the lock space. In the related art, one or two speakers are usually placed in the lock space. Since the river channel in the lock space is usually long, when tourists take a cruise ship to tour from one side to the other side of the lock space, the sound of the speakers will be far away, resulting in poor sound clarity, which reduces the tourists' sightseeing experience. Summary of the invention

[0003] The purpose of the present invention is to provide an immersive theme-following 3D sound field restoration system to improve sound clarity and enhance tourists' sightseeing experience.

[0004] The present invention provides an immersive theme-following 3D sound field restoration system, in which a plurality of first speakers are evenly arranged along the length direction at preset intervals on the first side and the second side of the interior of the target lock space, wherein the first side and the second side are each side of the interior of the target lock space in the length direction; at least one second speaker is installed at each riverside area spaced a first preset distance from the exterior of the target lock space; at least one third speaker is installed at the top at each entrance at both ends of the target lock space; at least one fourth speaker is installed at each riverside area spaced a second preset distance from the exterior of the target lock space, wherein the second preset distance is greater than the first preset distance; the system comprises: a position detection module and a control module; the position detection module is used to detect a first position of the hull and send the first position to the control module; the control module is used to determine, according to the first position, a target speaker within a preset range corresponding to the first position, and turn on the target speaker and turn off other speakers except the target speaker; wherein the target speaker is at least a part of all the first speakers, all the second speakers, all the third speakers and all the fourth speakers.

[0005] Furthermore, the control module pre-stores first correspondence information; the first correspondence information includes: designated speakers corresponding to multiple different positions and acoustic characteristic information of each designated speaker; the first correspondence information is obtained after simulating a pre-constructed virtual three-dimensional scene; the virtual three-dimensional scene is a scene that includes an immersive theme-following 3D sound field restoration system.

[0006] Furthermore, the control module is also used to search for a target designated speaker matching the first position from the first correspondence information based on the first position, determine the target designated speaker as the target speaker, turn on the target speaker, control each target speaker to play audio according to its corresponding acoustic characteristic information, and turn off other speakers except the target speaker.

[0007] Furthermore, the acoustic feature information includes at least one of the following: frequency and loudness.

[0008] Furthermore, each first speaker is mounted on an adjustable bracket.

[0009] Furthermore, the horizontal coverage angle of each first speaker is 110 degrees, and the vertical coverage angle is 70 degrees.

[0010] Furthermore, the consonant clarity loss rate of the target lock space ranges from 7.03% to 8.18%.

[0011] Furthermore, the range of the rapid speech transmission index of the target lock space is 0.560-0.588.

[0012] Furthermore, in the range of 100 Hz-6300 Hz, the average sound pressure level is 103.43 dB.

[0013] The present invention provides an immersive theme-following 3D sound field restoration device, comprising any of the above-mentioned immersive theme-following 3D sound field restoration systems.

[0014] The present invention provides an immersive theme-following 3D sound field restoration system, in which a plurality of first speakers are evenly arranged along the length direction at preset intervals on the first side and the second side of the interior of the target lock space, wherein the first side and the second side are each side of the interior of the target lock space in the length direction; at least one second speaker is installed at each riverside area spaced a first preset distance from the exterior of the target lock space; at least one third speaker is installed at the top at each entrance at both ends of the target lock space; at least one fourth speaker is installed at each riverside area spaced a second preset distance from the exterior of the target lock space, wherein the second preset distance is greater than the first preset distance; the system comprises: a position detection module and a control module; the position detection module is used to detect a first position of the hull and send the first position to the control module; the control module is used to determine, according to the first position, a target speaker within a preset range corresponding to the first position, and turn on the target speaker and turn off other speakers except the target speaker; wherein the target speaker is at least a part of all the first speakers, all the second speakers, all the third speakers and all the fourth speakers. The system precisely arranges the position of each speaker, and based on the first position of the hull, it only needs to turn on the nearby target speakers to achieve the effect of sound moving with the movement of the hull, and always keep the sound clear, enhancing the tourists' immersive tour experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] FIG1( a ) is a schematic diagram of an immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention;

[0017] FIG1( b ) is a schematic diagram of another immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention;

[0018] FIG1( c ) is a schematic diagram of another immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention;

[0019] FIG1( d ) is a cross-sectional schematic diagram of an immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention;

[0020] FIG. 1( e ) is a side view of an immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention.

[0021] FIG1( f ) is a side view of another immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of another immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention;

[0023] FIG3( a ) is a schematic diagram of another immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention;

[0024] FIG3( b ) is a schematic diagram of a consonant clarity loss rate provided by an embodiment of the present invention;

[0025] FIG4( a) is a schematic diagram of another immersive theme-following 3D sound field restoration system provided by an embodiment of the present invention;

[0026] FIG4( b ) is a schematic diagram of a fast speech transmission index provided by an embodiment of the present invention;

[0027] FIG5( a) is a schematic diagram of the arrangement of a speaker provided in an embodiment of the present invention;

[0028] FIG5( b) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0029] FIG5( c ) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0030] FIG5( d ) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0031] FIG5( e) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0032] FIG6( a) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0033] FIG6( b ) is a schematic diagram of a sound pressure level provided by an embodiment of the present invention;

[0034] FIG. 7( a) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0035] FIG7( b) is a schematic diagram of a sound pressure level provided by an embodiment of the present invention;

[0036] FIG8( a) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0037] FIG8( b ) is a schematic diagram of a sound pressure level provided by an embodiment of the present invention;

[0038] FIG9( a) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0039] FIG9( b) is a schematic diagram of a sound pressure level provided by an embodiment of the present invention;

[0040] FIG10( a) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0041] FIG10( b ) is a schematic diagram of a sound pressure level provided by an embodiment of the present invention;

[0042] FIG11( a) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0043] FIG11( b ) is a schematic diagram of a sound pressure level provided by an embodiment of the present invention;

[0044] FIG12( a) is a schematic diagram of another arrangement of speakers provided in an embodiment of the present invention;

[0045] FIG12( b ) is a schematic diagram of a sound pressure level provided by an embodiment of the present invention;

[0046] Fig.13 A schematic diagram of a transmission frequency characteristic curve provided by an embodiment of the present invention;

[0047] Fig.14 A summary table of sound pressure levels provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In the related art, the audio equipment used in the closed lock space serving as a landscape corridor is aging and the content is not updated, and there is a problem of poor sound clarity. It is urgent to optimize and transform the audio system. Based on this, an embodiment of the present invention provides an immersive theme-following 3D sound field restoration system, which can be applied to scenarios where water audio playback is required.

[0050] To facilitate understanding of this embodiment, an immersive theme-following 3D sound field restoration system disclosed in an embodiment of the present invention is first introduced. On a first side surface and a second side surface inside a target ship lock space, a plurality of first sound boxes are evenly arranged along a length direction at preset intervals, wherein the first side surface and the second side surface are each side surface inside the target ship lock space in a length direction;

[0051] The target lock space is usually a closed space, and the left / right / front / rear / top are all screens, which are relatively smooth planes; the preset interval can be set according to actual needs; because the target lock space is located on the water, the first speaker usually adopts a full-range surround channel waterproof speaker, which can cover a wider frequency range and provide more delicate and realistic sound effects; in actual implementation, in order to make the sound quality clearer and reduce the interference between the sounds of two adjacent speakers, the preset interval can be selected as 192 cm, etc., and each first speaker is installed in an embedded hidden manner; for example, as shown in FIG1(a), a schematic diagram of an immersive theme-following 3D sound field restoration system, 18 first speakers are installed in an embedded hidden manner on each of the two sides in the length direction of the interior of the target lock space, and are evenly distributed at an interval of 192 cm.

[0052] At least one second speaker is installed in each riverside area which is separated from the outside of the target lock space by a first preset distance. The first preset distance can be set according to actual needs, and is usually a shorter distance, for example, 50 cm. The second speaker usually adopts a single 10-inch subwoofer, which refers to a subwoofer with a 10-inch woofer unit, and can be used to enhance the sound effect of the low frequency band. In actual implementation, as shown in FIG1(a), four single 10-inch subwoofers can be evenly installed outside the target lock space, near the riverside areas at both ends of the target lock space.

[0053] At each entrance at both ends of the target lock space, at least one third speaker is installed on the top; the third speaker can be a full-range sound-filling speaker, which refers to an audio range that can cover from low frequency to high frequency, usually covering a frequency range of 20Hz to 20kHz. The design of this speaker enables it to play sounds from very low to very high, thereby providing a more comprehensive audio experience. In actual implementation, as shown in Figure 1(a), two third speakers can be mounted on the top of each entrance at both ends of the target lock space.

[0054] At least one fourth speaker is installed in each river side area which is separated from the outside of the target lock space by a second preset distance, wherein the second preset distance is greater than the first preset distance; the above-mentioned second preset distance can be set according to actual needs; the fourth speaker can adopt a full-range all-weather speaker, and a full-range all-weather speaker refers to an audio device that has the characteristics of both a full-range speaker and an all-weather speaker. A full-range speaker refers to an audio device that can cover the entire audio frequency range and can output evenly from bass to treble; an all-weather speaker refers to an audio device that has properties such as waterproof, dustproof, and shockproof, and can work normally in various outdoor environments. In actual implementation, as shown in Figure 1(a), four fourth speakers can be installed on both sides outside the river channel, that is, in each river channel side area separated from the outside of the target lock space by a second preset distance. From the schematic diagram of another immersive theme-following 3D sound field restoration system shown in Figure 1(b), the schematic diagram of another immersive theme-following 3D sound field restoration system shown in Figure 1(c), the cross-sectional schematic diagram of an immersive theme-following 3D sound field restoration system shown in Figure 1(d), the side view of an immersive theme-following 3D sound field restoration system shown in Figure 1(e), and the side view of another immersive theme-following 3D sound field restoration system shown in Figure 1(f), it can be seen that the target lock space is located above the water surface and there is a screen on each side.

[0055] like Figure 2 As shown, the system includes: a position detection module 10 and a control module 11; the position detection module 10 is used to detect a first position of the hull and send the first position to the control module 11; the control module 11 is used to determine a target speaker within a preset range corresponding to the first position according to the first position, and turn on the target speaker and turn off other speakers except the target speaker; wherein the target speaker is at least a part of all the first speakers, all the second speakers, all the third speakers and all the fourth speakers.

[0056] In actual implementation, when tourists take a cruise ship to enter the target lock space from the outside and visit the audio and video in the target lock space, the position detection module 10 can detect the first position of the cruise ship in real time and send it to the control module 11. The control module 11 can turn on the target speakers near the hull according to the first position. For example, when the hull moves in the target lock space, three speakers on each side of the hull can be turned on, and the other speakers can be turned off. Considering that if all the first speakers are turned on at the same time, reverberation and noise interference will be relatively large, which will reduce the tourist experience, all the first speakers in this embodiment are evenly distributed, and the area passed by the cruise ship is evenly covered. Only the target speakers near the hull need to be turned on, which can effectively control the turbidity of the spatial sound and effectively improve the sound clarity.

[0057] In the above-mentioned immersive theme-following 3D sound field restoration system, the position of each speaker is precisely arranged, and according to the first position of the hull, only the nearby target speakers need to be turned on to achieve the moving effect of sound following the movement of the hull, and the sound can always be kept clear, thereby enhancing the immersive tour experience of tourists.

[0058] Furthermore, the control module pre-stores first correspondence information; the first correspondence information includes: designated speakers corresponding to multiple different positions and acoustic characteristic information of each designated speaker; the first correspondence information is obtained after simulating a pre-constructed virtual three-dimensional scene; the virtual three-dimensional scene is a scene that includes an immersive theme-following 3D sound field restoration system.

[0059] The multiple different positions in the above-mentioned first correspondence information can be understood as corresponding to the positions of the hull; the above-mentioned designated speakers can be understood as speakers that need to be turned on when the hull is located at different positions; the above-mentioned acoustic feature information usually includes at least one of the following: frequency, loudness, and of course, other acoustic features can also be included according to actual needs; in actual implementation, a virtual three-dimensional scene including the above-mentioned immersive theme following 3D sound field restoration system can be pre-constructed, including: water environment, hull, target lock space, and the positions of each first speaker, second speaker, third speaker and fourth speaker relative to the target lock space are modeled in proportion according to the real scene, simulating the hull moving to different positions and turning on the speakers. Different numbers of speakers, and simulation of the sound effects of each turned-on speaker under different frequencies and loudness conditions. Through this simulation process, it is possible to determine the designated speakers that need to be turned on when the hull is in different positions to ensure the best sound effect, as well as the frequency, loudness, etc. corresponding to each designated speaker. The designated speakers corresponding to different positions are usually different, and the acoustic characteristic information of each designated speaker is usually different. This method can use advanced data signal processing technology to adjust the frequency, loudness, etc. of each designated speaker as needed according to the characteristics of spatial frequency. For example, it is necessary to suppress some high-pitched sounds with strong reflections and enhance some low-pitched sounds with weaker reflections, thereby improving the environmental adaptability of the system.

[0060] In practical applications, different music is matched with different video images, and different acoustic feature information needs to be superimposed on different music. Therefore, in the modeling and simulation process, simulation can be performed for different music, which can make the control more precise.

[0061] Furthermore, the control module is also used to search for a target designated speaker matching the first position from the first correspondence information based on the first position, determine the target designated speaker as the target speaker, turn on the target speaker, control each target speaker to play audio according to its corresponding acoustic characteristic information, and turn off other speakers except the target speaker.

[0062] In actual implementation, since each side of the target ship lock space is a relatively smooth plane, there will be a strong sound reflection phenomenon, which will cause the reverberation to be too long and the sound to be turbid and unclear. In this embodiment, the above-mentioned first correspondence information can be obtained in advance through modeling and simulation. When the control module obtains the first position of the hull, it can search for the target designated speaker matching the first position from the first correspondence information according to the first position, and turn on the target designated speaker as the target speaker, and turn off other speakers. Each turned-on target speaker plays audio according to the corresponding frequency, loudness, etc. in the first correspondence information. By controlling the superposition characteristics of the frequency, loudness, etc. of each turned-on target speaker, tourists can hear the clearest sound.

[0063] Furthermore, each first speaker is mounted on an adjustable bracket. Considering that the water level below the target lock space usually changes, for example, the water level changes in the range of 1.5 meters to 4.5 meters, by mounting the first speaker on the adjustable bracket, the adjustable bracket can be adjusted according to different water levels so that the first speaker is located in a suitable position; the horizontal coverage angle of each first speaker is 110 degrees, and the vertical coverage angle is 70 degrees; in this embodiment, according to the characteristics of the space and immersive theme-following 3D sound field restoration system, a speaker with a wider horizontal coverage angle is selected to ensure that the sound can evenly cover the listening area, and the effective coverage range can be adjusted according to actual needs.

[0064] Furthermore, the consonant clarity loss rate of the target lock space ranges from 7.03% to 8.18%. The consonant clarity loss rate Alcon uses the percentage of consonant pronunciation loss as a measurement standard. The smaller the value, the smaller the consonant pronunciation loss, and therefore the higher the language clarity. The schematic diagram of another immersive theme-following 3D sound field restoration system shown in Figure 3 (a) and the schematic diagram of a consonant clarity loss rate shown in Figure 3 (b) show that the minimum value of the consonant clarity loss rate is 7.03%, the maximum value is 8.18%, and the average value is 7.37%.

[0065] Furthermore, the range of the rapid speech transmission index of the target lock space is 0.560-0.588. The Rapid Speech Transmission Index (RASTI) is an important criterion for measuring speech clarity. The larger the value, the better the speech transmission index and the higher the speech clarity. As shown in FIG4(a), another schematic diagram of an immersive theme-following 3D sound field restoration system and FIG4(b), a schematic diagram of a rapid speech transmission index show that the minimum value of the rapid speech transmission index is 0.560, the maximum value is 0.588, and the average value is 0.580.

[0066] According to the operation manual of EASE4.1, speech intelligibility is reflected in the percentage of consonant intelligibility loss rate Alcon% and the rapid speech transmission index RASTI. The evaluation criteria of the percentage of consonant intelligibility loss rate Alcon% and the rapid speech transmission index RASTI are shown in Table 1 below:

[0067] Table 1

[0068]

[0069] The simulation results are compared with the standard and analyzed:

[0070] The percentage of consonant clarity loss (Alcon%) was 7.03%-8.18%, which was good in most areas. The rapid speech transmission index (RASTI) was 0.560-0.588, which was good in most areas.

[0071] Furthermore, in the range of 100 Hz-6300 Hz, the average sound pressure level is 103.43 dB.

[0072] The speakers used in the above system are all original parameters certified by the EASE official database, and the data is authentic and valid. The speakers are arranged in a sound holographic system to amplify the theater sound, as shown in Figure 5(a), another speaker arrangement diagram, another speaker arrangement diagram, another speaker arrangement diagram, another speaker arrangement diagram, another speaker arrangement diagram, and another speaker arrangement diagram. This sound reinforcement system is designed according to the acoustic characteristics index (level 1) of the multi-purpose sound reinforcement system in the "Design Specifications for Sound Reinforcement Systems for Halls and Stadiums" (GB / T 28049-2011), which can ensure the uniformity of the sound field. Another schematic diagram of the arrangement of loudspeakers as shown in FIG6(a) and a schematic diagram of the sound pressure level as shown in FIG6(b), which show information such as the average sound pressure level at 125 Hz being 103.20 dB, the minimum sound pressure level being 103.00 dB, and the maximum sound pressure level being 103.38 dB; another schematic diagram of the arrangement of loudspeakers as shown in FIG7(a) and another schematic diagram of the sound pressure level as shown in FIG7(b), which show information such as the average sound pressure level at 250 Hz being 103.21 dB, the minimum sound pressure level being 103. 00dB, the maximum sound pressure level is 103.36dB, etc.; another schematic diagram of the arrangement of speakers as shown in FIG8(a) and another schematic diagram of the sound pressure level as shown in FIG8(b), which show that the average sound pressure level at 500Hz is 103.24dB, the minimum sound pressure level is 103.00dB, the maximum sound pressure level is 103.34dB, etc.; another schematic diagram of the arrangement of speakers as shown in FIG9(a) and another schematic diagram of the sound pressure level as shown in FIG9(b), which show that the average sound pressure level at 1000Hz is 103.24dB, the minimum sound pressure level is 103.00dB, the maximum sound pressure level is 103.34dB, etc. The average sound pressure level is 103.25dB, the minimum sound pressure level is 103.00dB, the maximum sound pressure level is 103.39dB, etc.; another schematic diagram of the arrangement of loudspeakers as shown in FIG10(a) and another schematic diagram of the sound pressure level as shown in FIG10(b), which show that the average sound pressure level at 2000Hz is 104.00dB, the minimum sound pressure level is 103.72dB, and the maximum sound pressure level is 104.23dB; another schematic diagram of the arrangement of loudspeakers as shown in FIG11(a) and another schematic diagram of the sound pressure level as shown in FIG11(b) 12(a) and 12(b) are schematic diagrams of another sound pressure level, which show information such as the average sound pressure level at 8000 Hz is 103.47 dB, the minimum sound pressure level is 103.00 dB, and the maximum sound pressure level is 103.91 dB.

[0073] like Fig.13The schematic diagram of a transmission frequency characteristic curve is shown. The data of the transmission frequency characteristic of the audience area is obtained by EASE simulation calculation. The average sound pressure level of 100Hz-6300Hz is 103.43dB. It can be seen that the transmission frequency characteristic of the audience area can be achieved; the average sound pressure level of 100-6300Hz is 0dB, and -4dB~+4dB (1 / 3 octave measurement) is allowed in this frequency band, and the allowable variation range of 50Hz-100Hz and 6300Hz-12500Hz is within the design requirements.

[0074] like Fig.14 A summary table of sound pressure levels is shown, combined with Fig.13 and Fig.14 It can be seen that the average sound pressure level in the range of 100-6300Hz is 103.43dB, which is greater than the maximum sound pressure level (dB) of the standard: ≥103dB, meeting the standard requirements. 1000Hz and 4000Hz are less than or equal to 8dB, which is better than the requirements for steady-state sound field unevenness in the national standard GBT 28049-2011 "Design Specifications for Hall and Stadium Sound Reinforcement Systems" Multi-purpose Sound Reinforcement System Acoustic Characteristics Index (Level 1) standard.

[0075] The above-mentioned immersive theme-following 3D sound field restoration system is based on the reverberation control of multi-channel audio. Through precise speaker arrangement and digital signal processing, it overcomes the reverberation problem caused by sound reflection in the space and significantly improves the clarity and immersion of the sound.

[0076] Immersive sound multiple algorithms are used to optimize the horizontal movement effect of sound, so that the sound moves with the movement of the hull, enhancing the immersive experience of tourists. This technology has a significant effect in improving the tourist experience.

[0077] The system uses digital signal processing technology to adjust the audio frequency to adapt to environmental changes, improving the system's environmental adaptability. This technology performs well in dealing with complex aquatic environments and can stably provide high-quality sound effects.

[0078] The system uses speakers with wide-angle coverage to ensure that the sound can evenly cover the listening area, achieving highly uniform sound field coverage. The speaker's adjustable bracket and wide-angle design can adjust the coverage range according to different water level changes, improving the flexibility and adaptability of the audio system.

[0079] This immersive theme-based 3D sound field restoration system not only effectively solves the reverberation and sound fuzziness problems of traditional audio systems in aquatic environments, but also provides a clear and immersive audio experience through innovative sound algorithms and digital signal processing technologies. This technical solution has broad application prospects, especially for tourism and cultural projects that require high-quality audio experience.

[0080] By adopting the above-mentioned technical solutions, the visitor experience in the existing lock space will be significantly improved, creating a more immersive and clear audio effect. This technology not only meets national standards, but also performs well in practical applications and has important innovative value and application potential.

[0081] An embodiment of the present invention discloses an immersive theme-following 3D sound field restoration device, comprising any of the above-mentioned immersive theme-following 3D sound field restoration systems.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An immersive theme-following 3D sound field restoration system, characterized in that: A plurality of first sound boxes are evenly arranged along the length direction at preset intervals on the first side and the second side of the interior of the target ship lock space, wherein the first side and the second side are each side of the interior of the target ship lock space in the length direction; at least one second sound box is installed at each river channel side region spaced a first preset distance from the exterior of the target ship lock space; at least one third sound box is installed at the top at each entrance at both ends of the target ship lock space; at least one fourth sound box is installed at each river channel side region spaced a second preset distance from the exterior of the target ship lock space, wherein the second preset distance is greater than the first preset distance; The system comprises: a position detection module and a control module; The position detection module is used to detect a first position of the hull and send the first position to the control module; The control module is used to determine a target speaker within a preset range corresponding to the first position according to the first position, turn on the target speaker, and turn off other speakers except the target speaker; wherein the target speaker is at least a part of all the first speakers, all the second speakers, all the third speakers, and all the fourth speakers.

2. The system according to claim 1, characterized in that The control module pre-stores first corresponding relationship information; The first correspondence information includes: designated speakers corresponding to multiple different positions and acoustic feature information of each designated speaker; the first correspondence information is obtained after simulating a pre-constructed virtual three-dimensional scene; the virtual three-dimensional scene is a scene that includes the immersive theme-following 3D sound field restoration system.

3. The system according to claim 2, characterized in that The control module is also used to search for a target designated speaker matching the first position from the first correspondence information according to the first position, determine the target designated speaker as the target speaker, turn on the target speaker, control each of the target speakers to play audio according to the corresponding acoustic characteristic information, and turn off other speakers except the target speaker.

4. The system according to claim 2, characterized in that The acoustic feature information includes at least one of the following: frequency and loudness.

5. The system according to claim 1, characterized in that Each of the first speakers is mounted on an adjustable bracket.

6. The system according to claim 1, characterized in that The horizontal coverage angle of each of the first speakers is 110 degrees, and the vertical coverage angle is 70 degrees.

7. The system according to claim 1, characterized in that The consonant clarity loss rate of the target lock space ranges from 7.03% to 8.18%.

8. The system according to claim 1, characterized in that The range of the rapid language transmission index of the target lock space is 0.560-0.

588.

9. The system according to claim 1, characterized in that In the range of 100Hz-6300Hz, the average sound pressure level is 103.43dB.

10. An immersive theme-following 3D sound field restoration device, characterized in that: An immersive theme-following 3D sound field restoration system comprising any one of claims 1-9.

Images