JPH04221987A - External noise simulation device - Google Patents

Abstract

PURPOSE:To realize a device which enables the person, who is going to con struct his own house, to experience the difference of the noise level inside his house with a normal non-sound proofing wall and with a sound proofing wall, in the case there is an external noise source such as a speedway, airport near the lot. CONSTITUTION:An experiencing room A is located in the center. A projection screen R is provided at the location of a projection window 13 of the experiencing room A, an external noise source image is projected onto the projection screen R by an externally located projection device P, an acoustic system produces a noise level of the noise source corresponding to the noise level inside the room and the difference between the inside noise levels with a normal non-sound proofing wall and a sound proofing wall is realized too by varying the acoustic system volume.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention can be applied to
This is a device that allows you to experience and see how well it performs in soundproofing against external noise sources.

0002

[Prior Art] Walls with excellent soundproofing properties have been provided for a long time, but it is important to compare the level of soundproofing performance of soundproofing walls against external noise. was impossible.

0003

[Problems to be Solved by the Invention] The present invention aims to solve the problem of choosing between a non-soundproof wall and a strong soundproof wall when a person who is planning to build a house is located near an expressway or an airport. This makes it possible to know specifically whether the noise level will be at a certain level. The structure is also designed to allow the user to experience the level of noise inside the room at any given time due to differences in external noise sources. Also,
Since the human ear may not be able to distinguish between large and small noise levels, a sound level meter is installed and a display mechanism that can numerically display the noise level is provided. Furthermore, by providing this display mechanism inside the experience room, the noise level can be checked inside the experience room.

0004

[Means for Solving the Problems] The problems to be solved by the present invention are as described above, and next, the means for solving the problems will be explained. That is, one of the windows in the experience room A is used as the projection window 13, and the projection window 1
A sound system 19 is provided with a projection screen R disposed outside of the room A, a projection device P for projecting an external noise source onto the projection screen R, and a predetermined noise played in the experience room A in conjunction with the external noise image. 20, 21, and 22, and a display mechanism 1 is provided in the experience room A to display the external noise level and the internal noise level.

[0005]

[Function] Since the present invention is configured as described above, the experiencer can separate the noise sources outside the experience room A from the expressway, airport, general road, etc. by operating from inside the experience room. You can experience the noise level inside A. In addition, by operating the internal operation panel, you can check the difference in the noise level between the cases where the normal non-soundproof wall 8, the weak soundproof wall 9, the medium soundproof wall 10, and the strong soundproof wall 11 are installed.
・You can tell by the amount of noise coming from 21 and 22.

[0006]

[Embodiment] Next, the structure of the embodiment shown in the attached drawings will be explained. FIG. 1 is an overall plan view of the external noise simulation device of the present invention, and FIG. 2 is a projection window 1 viewed from inside the experience room A.
3 is a perspective view from the outside of the projection screen R placed outside the projection window 13, FIG. 4 is a perspective view of the projection device P installed in the projector room 23, and FIG. 5 is the display. FIG. 2 is a perspective view of mechanism 1;

This will be explained with reference to FIG. The external noise simulation device of the present invention has an experience room A in the center, and around the experience room A, there are normal non-soundproof walls 8, weak soundproof walls 9, medium soundproof walls 10, and strong soundproof walls 11 on all sides. Three types of soundproof walls are installed. On the outside of the normal non-soundproof wall 8, weak soundproof wall 9, medium soundproof wall 10, and strong soundproof wall 11, sealed external spaces 16, 17, 14, and 15 are constructed for each wall. That is, between each closed external space 16, 17, 14, 15,
It is sealed with soundproof walls 26, 27, 28, and 25, and a door for entering and exiting is provided, and this door is also made of soundproof walls. and closed external space 16, 17, 14, 15
Sound level meters S1, S2, S3, and S4 are placed at each
A sound level meter S5 is also placed inside the experience room A.

[0008] Only the sealed external space 17 has a special configuration, and a projector room 23 is configured to communicate with the outside of the sealed external space 17. A projection device P is arranged on the ceiling of the projector room 23. Weak soundproof wall 9
A projection screen R is provided outside the projection window 13 provided in the
The projection screen R is allowed to slide left and right inside the projection screen sliding frame 24. The projection screen R can be slid from side to side by pressing an operation button inside the experience room A.

[0009] The external noise simulation device of the present invention makes it possible to experience a comparison of how much noise is diffused into a room compared to an external noise source. That is, in this case, since the external noise cannot be specified, it is configured to be created and experienced through simulation. External noise sources include when an expressway passes right by, when a regular road passes through, when there is a factory nearby, when there is a shopping district next door, and when there is a residential area next door. Depending on the situation, such as when there is a quiet area such as a forest or a river next door, you can experience it inside the experience room A.

[0010] At the same time, an image projected on the projection screen R and the sound systems 19, 20, 21, 22 show how each soundproof wall acts against such external noise.
The experience is made possible by the noise generated by the machine. The projection screen R is movable along the projection screen sliding frame 24 to the outside of the projection window 13, and the operation can be performed indoors. The projection screen R is the projection window 1
3, by selecting the type of noise on the operation panel inside experience room A, you can choose whether it is a highway, a general road, a far road, a nearby road, or a store. It is possible to freely project images from the projection device P onto the projection screen R depending on whether the city is far away or close to the city. At the same time as the noise source of the projection device P is changed, the magnitude of the noise coming out from the sound systems 19, 20, 21, and 22 is also adjusted. In addition, although the type of soundproof wall is not actually changed, the simulation control mechanism in the acoustic systems 19, 20, 21, and 22 allows the normal non-noiseproof wall 8, weak soundproof wall 9, and medium soundproof wall 10 to be changed.
By selecting the strong soundproof wall 11, the projection window 1
Even if there is an expressway outside Room 3, noise will be transmitted into the interior of Experience Room A due to the difference in the soundproofing effect depending on the type of soundproofing wall. The noise is displayed on the noise generating room level display section 2 of the display mechanism 1, and the external noise is displayed on the weak soundproofing level display device 4 that displays the noise level at the position of the closed external space 17.

As mentioned above, the present invention deals with the noise level inside the experience room A in relation to external noise sources.
This device also allows users to experience how noise is diffused to the outside due to internal noise sources. That is, a noise generation source 18 is arranged inside the experience room A, and the noise generation source 18 may be any acoustic product, but the most common request when designing a soundproof room is for piano practice. In many cases, the piano room is designed to prevent noise damage to the neighbors, so in this configuration, the experience room A
The noise generating source 18 disposed inside is a player piano. By adjusting the volume of the player piano, the volume of the noise source can be adjusted freely.

The noise levels of the closed external spaces 16, 17, 14, and 15 and the experience room A are displayed on the display mechanism 1. The display mechanism 1 will be explained with reference to FIG. Display mechanism 1
is provided with a sensor position display panel 7 that displays the positions of the sound level meters S1, S2, S3, and S4, and a noise generating room level display section 2 is provided above the sensor position display panel 7. There is. Also, on the side of the noise generating room level display section 2, in order from above, there are closed external spaces 16 and 1.
Each sound level meter S1, S2, S3, S in the order of 7, 14, 15
Four display levels are illustrated. 3 is a normal non-soundproof wall level display section, 4 is a weak soundproof wall level display section,
5 is a medium soundproof wall level display section, and 6 is a strong soundproof wall level display section. In FIG. 5, the noise level generated by the noise source 18 in the experience room A is 48 db, while the normally closed external space 16 outside the non-soundproof wall 8
has almost no soundproofing effect, at 44db. Weak soundproof wall 9
The sealed external space 17 outside the building has a soundproofing effect of 36 db. Furthermore, the sealed external space 14 outside the middle soundproof wall 10 has a further soundproofing effect of 31 db. The case with strong soundproof wall 11 has the highest soundproofing effect, and 2
It has decreased to 7db.

[0013]

[Effects of the Invention] Since the present invention is constructed as described above, the following effects are achieved. In other words, it is not possible to actually compare and experience the effects of soundproof walls, and generally only receive explanations from catalogues, but with this residential soundproofing performance experience device, you can actually check with your own ears in an enclosed external space. Not only that, but the display mechanism 1 also allows you to numerically know the soundproofing effect, so if you are planning to build a house near an expressway or airport, you can clarify the soundproofing performance in advance. It is.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view of an external noise simulation device of the present invention.

FIG. 2 is a perspective view of the projection window 13 side viewed from inside the experience room A.

[Fig. 3] Projection screen R placed outside the projection window 13
FIG. 2 is a perspective view from the outside.

4 is a perspective view of a projection device P provided in a projector room 23. FIG.

FIG. 5 is a perspective view of the display mechanism 1.

[Explanation of symbols]

A　Experience room P Projection device R Projection screen S Sound level meter 1 Display mechanism 2　Experience room level display section 16　Enclosed external space

Claims (1)

[Claims] 1. One of the windows of the experience room A is a projection window 13, a projection screen R is disposed outside the projection window 13, and a projection device P for projecting an external noise source onto the projection screen R is provided, In conjunction with the external noise video, sound systems 19, 20, 21, and 22 that play a predetermined noise are arranged in the experience room A, and a display mechanism 1 that displays the external noise level and the internal noise level is installed in the experience room A. An external noise simulation device characterized by being installed inside.