Electronic sound building method
By using electronic sound building boxes with strong vertical and horizontal directionality in large stadiums, the problem of high cost and poor effect of sound building in the existing technology is solved, and the reverberation time is significantly shortened and the sound building effect is achieved. The improvement has reduced the cost of building sound.
Patent Information
- Application Number
- CN202411214013.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2024-12-20
AI Technical Summary
The existing electronic sound building technology is expensive and ineffective in large stadiums, and cannot effectively reduce the reverberation time and improve the quality of the sound reinforcement environment, resulting in high cost of sound building and failure to solve the natural sound problem.
Using centralized hanging electronic sound box with strong vertical and horizontal directionality, by determining the audience seats and areas where sound reinforcement is needed, avoiding places where sound reinforcement is not needed, and forming multiple electronic sound box groups to ensure that the sound covers the entire venue. , and add electronic sound box when the distance is long to enhance sound effect and delay adjustment to maintain consistency.
It significantly shortens the reverberation time, reduces the cost of building sound, improves the sound building effect, and makes the sound reinforcement environment meet national standards, and saves more than 50%.
Smart Images
Figure CN119170042A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of electronic sound construction, and in particular to an electronic sound construction method. Background Art
[0002] Building sound does not only belong to the construction industry. Recently, we have found that the reverberation sound in sound reinforcement can also be reduced by electronic means, and this method of reducing reverberation sound is called electronic building sound. Electronic building sound generally adopts the method of arranging electronic building sound boxes to reduce the relative reverberation time. Electronic building sound can not only solve the problem of sound reinforcement environment quality at a low cost, but also greatly reduce the engineering cost of sound reinforcement. However, the current purpose of building sound is to cooperate with audio as the main and natural sound as the auxiliary. The current situation is that most people give up improving the quality of sound reinforcement environment and saving costs due to the high cost of building sound. Especially for large stadiums, tens of millions of yuan are needed for traditional building sound, and neither the problem of sound reinforcement nor the problem of natural sound is solved. The cost of building sound is high and the effect of building sound is poor. Therefore, in order to avoid the shortcomings existing in the prior art, it is necessary to improve the prior art. Summary of the invention
[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art and to provide an electronic sound generation method which is cost-saving and has good sound generation effect.
[0004] The present invention is achieved through the following technical solutions:
[0005] An electronic sound generation method comprises the following steps:
[0006] Step 1: In a sound reinforcement environment where the reverberation time exceeds the national standard, determine the auditorium area, the area that needs sound reinforcement, and other areas that do not need sound reinforcement;
[0007] Step 2: Install the electronic sound box. According to the vertical and horizontal angle characteristics of its sound amplification, aim it at the auditorium area and other areas that need sound amplification, while avoiding places that do not need sound amplification. The higher the avoidance, the better.
[0008] Step 3: Hang a number of first electronic sound box groups above the rostrum area to form a first hanging electronic sound box group area, hang a number of second electronic sound box groups above the auditorium area opposite the rostrum area to form a second hanging electronic sound box group area, hang a number of third electronic sound box groups and a number of fourth electronic sound box groups above the auditorium areas on the left and right sides to form a third hanging electronic sound box group area and a fourth hanging electronic sound box group area;
[0009] Step 4: Each electronic sound box group in the first hanging area points in a different direction, and the sound covers the entire audience area;
[0010] Step 5: When the distance is far, the sound effects can be enhanced by adding electronic sound boxes nearby. At the same time, delay is required to ensure that the sound effects of the auditorium area on the left and right sides of the sound reinforcement environment are consistent with the podium area and the auditorium area opposite the podium area.
[0011] Furthermore, the electronic sound box is a sound box with strong vertical and horizontal directivity.
[0012] Furthermore, the electronic sound box is a rectangular parallelepiped electronic sound box, and the electronic sound box is provided with 4 or more tweeters and woofers linearly arranged along the length direction.
[0013] Furthermore, the electronic sound box is stacked vertically to form an electronic sound box group.
[0014] Furthermore, the electronic sound box is suspended horizontally, and is provided with 4 or more mid-range and high-frequency speakers.
[0015] Furthermore, when the electronic building sound box is fixedly installed, unnecessary reflective surfaces are avoided as much as possible, and a centralized hanging method is adopted.
[0016] Furthermore, all electronic sound box groups are hung on the horseway of the sound reinforcement environment, and the highest hanging point does not exceed the height of the horseway.
[0017] Furthermore, by using the electronic building sound box in conjunction with other audio equipment, all audio equipment systems except the speakers can be used as the electronic building sound box to improve the sound effect.
[0018] Compared with the prior art, the present invention reduces the relative reverberation time by centrally hanging electronic sound boxes in the sound reinforcement environment. The highly directional electronic sound boxes are used to keep the sound away from the reflective surfaces that do not need to be amplified, thus avoiding the excitation of excessive reflected sound, thereby greatly shortening the relative reverberation time, playing the role of sound reinforcement, solving the sound reinforcement problem, reducing the sound reinforcement cost, and achieving a good sound reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a schematic diagram of the structure of the electronic sound box of the present invention arranged in a sound reinforcement environment;
[0021] Figure 2 It is a structural schematic diagram of the electronic sound box of the present invention.
[0022] In the figure: 1-the first electronic building sound box group; 2-the first hanging electronic building sound box group area; 3-the second electronic building sound box group; 4-the second hanging electronic building sound box group area; 5-the third electronic building sound box group; 6-the fourth electronic building sound box group; 7-the third hanging electronic building sound box group area; 8-the fourth hanging electronic building sound box group area; 9-electronic building sound box; 10-tweeter; 11-woofer; 12-speaker. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.
[0024] like Figure 1 and Figure 2 An electronic sound generation method of the present invention comprises the following steps:
[0025] Step 1: In a sound reinforcement environment where the reverberation time exceeds the national standard, determine the auditorium area, the area that needs sound reinforcement, and other areas that do not need sound reinforcement;
[0026] Step 2: Install the electronic sound box 9, and aim it at the auditorium area and other areas that need sound amplification according to the vertical and horizontal angle characteristics of its sound amplification, while avoiding places where sound amplification is not required, the higher the degree of avoidance, the better;
[0027] Step 3: Hang a number of first electronic sound box groups 1 above the rostrum area to form a first hanging electronic sound box group area 2, hang a number of second electronic sound box groups 3 above the auditorium area opposite the rostrum area to form a second hanging electronic sound box group area 4, hang a number of third electronic sound box groups 5 and a number of fourth electronic sound box groups 6 above the auditorium areas on the left and right sides respectively to form a third hanging electronic sound box group area 7 and a fourth hanging electronic sound box group area 8;
[0028] Step 4: Each electronic sound box group in the first hanging area 2 points in a different direction, and the sound covers the entire auditorium area;
[0029] Step 5: When the distance is far, the sound effects can be enhanced by adding electronic sound boxes nearby. At the same time, delay is required to ensure that the sound effects of the auditorium area on the left and right sides of the sound reinforcement environment are consistent with the podium area and the auditorium area opposite the podium area.
[0030] The electronic sound box 9 is a sound box with strong vertical and horizontal directivity to avoid sound interference.
[0031] The electronic sound box 9 is a rectangular electronic sound box, and the electronic sound box 9 is provided with 4 or more tweeters 10 and woofers 11 linearly arranged along the length direction. The horizontal sound diffusion angle of the electronic sound box 9 is formed by beneficial interference, and the flat directivity is very strong.
[0032] The electronic building sound boxes 9 are stacked vertically to form an electronic building sound box group, forming vertical sound interference, and sound is emitted both horizontally and vertically through sound interference, so there is a strong sound directivity.
[0033] The electronic sound box 9 is suspended horizontally, and the electronic sound box 9 is provided with 4 or more mid-high frequency speakers, and the horizontal directivity of the sound is very strong through the sound interference.
[0034] When the electronic building sound box 9 is fixedly installed, unnecessary reflective surfaces should be avoided as much as possible, and a centralized hanging method should be adopted.
[0035] All electronic sound box groups are hung on the pavement of the sound reinforcement environment, and the highest point of the hanging shall not exceed the height of the pavement.
[0036] The electronic building sound box 9 is used in conjunction with other sound equipment, and the sound equipment system except the sound box can be used as the electronic building sound box to improve the sound effect.
[0037] Example
[0038] In a stadium that can accommodate 12,000 people, the reverberation time is 3.7 seconds, which is much different from the national standard of 2.2 seconds. Therefore, electronic sound is used here to make up for the lack of sound. The specific method is to use electronic sound box.
[0039] In terms of fixed installation, the electronic sound box adopts a unique centralized hanging method to avoid unnecessary reflective surfaces as much as possible.
[0040] There are 7 groups of hanging above the rostrum, forming a hanging area. There are 3 groups above the opposite audience seats, forming a hanging area. There are 4 groups of hanging areas on the left and right sides, forming two hanging areas. There are 4 electronic sound box hanging areas in total. The horizontal angle of each group of electronic sound boxes is 80 degrees, and the vertical angle is determined by the number of vertical arrangements and the bending angle.
[0041] Two groups of electronic sound boxes are hung above the rostrum, facing the middle of the sports field. They are 9 meters apart from each other, with 6 in each group, each covering half of the field.
[0042] There is also a set of speakers directly behind them, which are single 18-inch bass speakers 12, two in each set, which are used for sound reinforcement and have nothing to do with electronic sound.
[0043] There are 12 electronic sound boxes in the middle of the square on the rostrum, which can meet the sound needs of the rostrum, the upper and lower auditoriums, and the auditoriums within 25 meters on the left and right.
[0044] 25 meters to the left and right of the rostrum, there are two groups of symmetrical electronic sound boxes on the outermost side of the hanging area, facing both sides, with 9 in each group, extending the sound to the farthest end of the audience seats.
[0045] The electronic sound box hanging area of the auditorium opposite the rostrum is that the middle group has a total of 12 electronic sound boxes 9, which meet the needs of the upper and lower auditoriums and the left and right coverage areas for the sound needs of each extending 25 meters.
[0046] A group of 9 electronic sound boxes 9 on each symmetrical side covers the audience seats 25 meters away on the left and right, all the way to the sound needs of the farthest audience seats on the left and right.
[0047] The left and right ends of the stadium are already covered by the rostrum and two sets of electronic sound boxes (9 in each set) symmetrically opposite the rostrum. However, due to the distance of nearly 100 meters, the effect of the electronic sound boxes is weakened, so it is necessary to increase the sound effect by adding electronic sound boxes nearby, and at the same time, delay is needed to make the sound effects of the left and right audience areas of the stadium consistent with the rostrum and the audience seats opposite the rostrum.
[0048] There are four sets of electronic sound boxes above the audience seats in the left and right areas of the museum, with a distance of 15 meters between each set and two in each set, which are responsible for making up for the lack of sound in this area.
[0049] All the electronic sound boxes in the museum are hung on the horse track, and the highest point does not exceed the height of the horse track.
[0050] The product structure of electronic building sound box is as follows:
[0051] It is roughly rectangular, with multiple (at least 4) high and low frequency speakers arranged linearly along the length, and their sounds form beneficial sound interference. That is, the electronic sound box is laid down on the ground with the speaker facing forward, and its horizontal sound diffusion angle is formed through beneficial interference, so the horizontal directivity is very strong.
[0052] If multiple electronic sound boxes with strong horizontal diffusion angles are stacked upward, vertical sound interference will be formed. Sound is emitted both horizontally and vertically through sound interference, which has strong sound directivity. Using this feature, electronic sound boxes can be customized to avoid excess sound overflowing when satisfying the audience seats, thereby greatly shortening the reverberation time in the hall.
[0053] The original reverberation time of this stadium with 12,000 seats is 3.7 seconds. After the above operation, the reverberation time actually tested by these fixed electronic sound boxes is only 1 second. The German ease software also predicts that it is very close to 1 second (0.99 seconds).
[0054] The original reverberation time was 3.7 seconds, which was the result of a sound engineering project costing RMB 100 million. Now, with an additional RMB 10 million for electronic sound engineering, the 3.7-second sound reinforcement environment can be reduced to 1 second, a full reduction of 2.7 seconds. According to the budget at the time, if the traditional sound engineering project was increased by another RMB 10 million, the reverberation time of the sound reinforcement environment could only be reduced by 0.5 seconds.
[0055] Another thing to say is that having money does not necessarily mean that traditional building acoustics can be done well. It also needs to meet the architectural style of the design institute. From this perspective, super-large stadiums (with more than 12,000 seats) can hardly solve the problem of building acoustics, unless you have money and don't care about architectural style, which is actually impossible.
[0056] Let's talk about the current large stadiums. The acoustics are not up to standard because no one wants to spend 100 million or 200 million yuan. From this perspective, since the advent of electronic acoustics technology, the acoustics problem of large stadiums has been solved.
[0057] Electronic building sound technology is a technology that achieves great results with little money, is very energy-efficient, and does not affect the architectural style. Why not use it?
[0058] The purpose of electronic sound system is to reduce the reverberation time, while the purpose of entertainment sound system is to expand the sound with beautiful and pleasant timbre. Therefore, the entertainment line array speaker has strong vertical directivity but weak horizontal directivity. In general, its directivity is much worse than that of electronic sound system, which is determined by its purpose of use.
[0059] For large venues, entertainment audio must be combined with traditional sound to play a role. Electronic sound boxes are more advanced in difficult situations, and are more advantageous in harsh sound reinforcement environments. Otherwise, they cannot solve the most basic language sound reinforcement clarity problem.
[0060] Compared with the world-famous line array speakers on the market, the bass speakers only have two horizontal woofers, which form very weak acoustic interference, while the product of the present invention has more than four.
[0061] The tweeters of world-famous line array speakers are arranged vertically, and their horizontal directivity is also weak. However, in the product of the present invention, more than four tweeters are arranged horizontally, and the horizontal directivity of the sound is very strong through acoustic interference.
[0062] Electronic sound boxes only serve the sound reinforcement environment and have no effect on the natural sound environment.
[0063] Since the directivity issue is taken into consideration, it is possible to avoid the generation of large confusion sounds, so that the sound construction results can meet the national standards even in harsh sound reinforcement environments.
[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. An electronic sound generation method, characterized in that: The following steps are included: Step 1: In a sound reinforcement environment where the reverberation time exceeds the national standard, determine the auditorium area, the area that needs sound reinforcement, and other areas that do not need sound reinforcement; Step 2: Install the electronic sound box. According to the vertical and horizontal angle characteristics of its sound amplification, aim it at the auditorium area and other areas that need sound amplification, while avoiding places that do not need sound amplification. The higher the avoidance, the better. Step 3: Hang a number of first electronic sound box groups above the rostrum area to form a first hanging electronic sound box group area, hang a number of second electronic sound box groups above the auditorium area opposite the rostrum area to form a second hanging electronic sound box group area, hang a number of third electronic sound box groups and a number of fourth electronic sound box groups above the auditorium areas on the left and right sides to form a third hanging electronic sound box group area and a fourth hanging electronic sound box group area; Step 4: Each electronic sound box group in the first hanging area points in a different direction, and the sound covers the entire audience area; Step 5: When the distance is far, the sound effects can be enhanced by adding electronic sound boxes nearby. At the same time, delay is required to ensure that the sound effects of the auditorium area on the left and right sides of the sound reinforcement environment are consistent with the podium area and the auditorium area opposite the podium area.
2. The electronic sound generation method according to claim 1, characterized in that: The electronic sound box is a sound box with strong vertical and horizontal directivity.
3. The electronic sound generation method according to claim 1, characterized in that: The electronic sound box is a rectangular parallelepiped electronic sound box, and is provided with 4 or more tweeters and woofers linearly arranged along the length direction.
4. The electronic sound generation method according to claim 1, characterized in that: The electronic sound box is stacked vertically to form an electronic sound box group.
5. The electronic sound generation method according to claim 1, characterized in that: The electronic sound box is suspended horizontally and is provided with 4 or more mid-range and high-range speakers.
6. The electronic sound generation method according to claim 1, characterized in that: When the electronic sound box is fixedly installed, unnecessary reflective surfaces are avoided as much as possible and a centralized hanging method is adopted.
7. The electronic sound generation method according to claim 1, characterized in that: All electronic sound box sets are hung on the horseway of the sound reinforcement environment, and the highest hanging point does not exceed the height of the horseway.
8. The electronic sound generation method according to claim 1, characterized in that: Use electronic sound boxes in conjunction with other audio equipment. All audio equipment systems except speakers can be used as electronic sound boxes to improve sound effects.