JP2001183966A - Acoustic environment experiencing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide acoustic environment experiencing equipment which is easily installable in a room, such as a model room, and is easy in movement, etc., with a lessened space by constituting the equipment in such a manner that the reproduction of stereoscopic sounds and the sound insulation to the outside are made possible with simple constitution. SOLUTION: An acoustic environment experiencing space 11 is formed by freely openable and closable curtains 2 for partitioning the angle parts and other parts of a model room 10. In the acoustic environment experiencing space 11, the environmental sounds, such as floor impact sounds, reproduced by an acoustic device 6d are generated from first speakers 6a mounted at speaker holding frames toward the head 5a of an experiencing person 5 sitting on a chair 4 and the erasing sounds reproduced by the acoustic device 6d are generated from second speakers 6b mounted toward the outside 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound environment sensation facility in which a house purchaser or the like can experience in advance the environmental sound considered to enter the interior of an apartment house or a detached house.

[0002]

2. Description of the Related Art Conventionally, floor impact sounds such as the sound of running around on the upper floor or the sound of dropping objects, the piano of the next door, or the like, when construction designers, developers, prospective home buyers, etc. Units as shown in FIG. 8 and FIG. 9 as sound environment sensation facilities for confirming, by own hearing, environmental sounds such as airborne sounds such as television sounds and external noises such as road traffic noises and railway noises. -Type sound environment experience equipment is used.

FIG. 8 is a front view showing the interior of a conventional sound environment experiencing facility, which comprises a rectangular parallelepiped box 20 having a space in which an experienced person can sit.
The outer wall 21 is made of a sound insulating material and a sound absorbing material in order to isolate sound from outside and prevent sound from leaking to the outside. Inside the box 20, as a space for experiencing the sound environment, there is provided a rectangular parallelepiped sensation chamber 22 which is formed slightly smaller than the box 20.
2, a space 30 is provided between an inner wall 22 a located on the front side and an outer wall 21 of the box 20 when a person who is not shown sits down.
Are formed.

In the sensation chamber 22, two flat speakers 23, 23 are mounted side by side on the wall surface of the inner wall 22a. The flat speakers 23,
23, a display 31a of a computer 31 arranged in the space 30 is mounted so as to be embedded in the inner wall 22a.
A flat plate 31b extending in a direction perpendicular to the inner wall 22a is attached to a position below a, and a mouse or the like (not shown) for operating the computer 31 is placed on the flat plate 31b. Also, two treble speakers 24, 24 and one bass speaker 25 are mounted on the ceiling 22b of the sensation room 22, and the bass speaker 25 is a speaker of the treble speaker 24, 24. It is arranged to be sandwiched between. A door 26 is provided on another inner wall 22c of the sensation room for the sensible person to enter and exit.

In the space 30, as shown in the block diagram of FIG. 9, a D / A converter for converting a digital signal from the computer 31 as well as a computer 31 for controlling the correction of the recorded sound and the like. An equalizer 33 for compensating for the deterioration of the signal from the D / A converter 32;
A power amplifier 34 for amplifying a signal from the equalizer 33 and outputting the amplified signal to each of the speakers 23 to 25 is provided.

[0006] In the conventional sound environment experiencing equipment configured as described above, as shown in FIG.
Thus, the correction is performed with the attenuation value calculated based on the beam position, the beam size, the type and thickness of the floor slab, the wall thickness, and the like of the building as the object to be sensed, and output to the D / A converter 32. The analog signal converted by the D / A converter passes through an equalizer 33 to compensate for the deterioration of the signal, is amplified by a power amplifier 34, and is provided with a flat speaker 23 provided in the sensation room 22 and a treble speaker. 24
And the bass speaker 25. Thus, the sensible person in the sensation room 22 operates the computer 31 to experience a sound environment such as a floor impact sound in a specific room such as an apartment house by his / her hearing in an environment isolated from external sounds. be able to.

[0007]

However, the conventional sound environment experiencing equipment requires an external wall composed of a sound insulating material and a sound absorbing material for sound insulation from the outside, so that the unit having a certain size is required. It was formed in a mold. Therefore, since a certain amount of installation space is required, it has been difficult to install it in a room such as a model room. Also,
Installation of this equipment and moving work were also relatively difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a simple structure capable of providing sound insulation to the outside, so that it can be easily installed in a room such as a model room, and can save space. It is another object of the present invention to provide a sound environment sensation facility that can be easily moved.

[0009]

According to a first aspect of the present invention, there is provided a space in which a sound environment is sensed in a room, and the room is installed in the space and an environmental sound reproduced by an acoustic device is reproduced in the space. A speaker for environmental sound generation arranged so as to be generated toward the head of the sensible person and a speaker for generation of cancellation sound arranged to generate the cancellation sound reproduced by the acoustic device to the outside. It is provided. According to a second aspect of the present invention, in the acoustic device, the environmental sound signal is generated based on an inverse acoustic transfer function with respect to an acoustic transfer function between the environmental sound generating speaker and the head of the sensible person. An erasing sound creating means for creating an erasing sound is provided. Further, according to a third aspect of the present invention, in the sound device,
A sound reproducing means for reproducing the environmental sound by a multi-channel multi-channel reproducing method is provided. According to a fourth aspect of the present invention, there is provided an image display device for displaying an image linked to the environmental sound to a sensible person.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 3 are diagrams showing a sound environment experiencing facility according to an embodiment of the present invention. In these figures, reference numeral 1 denotes an L-shaped rail 1m, 1m which movably holds a partition member. For example, a cross-sectional shape is formed in a C-shape that opens downward, and a hook body (not shown)
The curtain, which will be described later, is suspended from the hook body as the partition member. The rails 1m, 1m are fixed to the ceiling of the model room 10 such that both ends thereof are in contact with the two side walls 10a, 10b at the corners of the model room 10, respectively. The rail 1 is provided with a support 1a extending from the L-shaped corner in the direction of the floor 10c to support the corner of the rail 1 on the floor 10c of the model room 10.

Reference numeral 2 denotes a bellows-like curtain serving as a partition member for partitioning the interior of the model room 10.
By being hung by hooks (not shown) attached along m and 1 m, the rails are held by the rails 1 m and 1 m so as to be movable in the horizontal direction. The curtain 2 is divided into two at the position of the support 1a of the rail portion 1 and can be freely opened and closed. By closing the curtains 2, 2,
The wall surfaces 10a and 10b at the corners of the model room 10 and the curtains 2 and 2 form a substantially cuboid sound environment experience space 11. In other words, the curtains 2 and 2 have a function of shielding the sound environment experience space 11 from other portions (hereinafter, referred to as “outside”) 12 in the model room 10 and have a certain degree of resistance to sound from the outside 12. It will have a sound insulation function. When the corners of the rails 1 of the curtains 2 and 2 are opened, the openings serve as entrances and exits of the sound environment experience space 11.

Reference numeral 3 denotes a speaker holding frame installed in the sound environment experience space 11, and as shown in FIGS. 2 and 3, four prismatic legs extending upward from the floor 10c of the model room 10. It comprises a portion 3a and a rectangular frame 3b as a speaker fixing portion having a bottom surface attached to the upper end of the leg portion 3a. The legs 3a of the speaker holding frame 3 are arranged in the sound environment sensation space 11 so as not to hinder the movement of the sensible person 5 such as going in and out and sitting.

Reference numeral 6 denotes a speaker device installed in the sound environment experience space 11, and four first speakers for generating environmental sounds mounted on the inner peripheral side of the frame 3b, and the frame 3b.
And two second loudspeakers for generating an erasing sound mounted on the outer peripheral side of the loudspeaker, and mounted on a wall 10a constituting the sound environment sensing space 11, and connected to the speakers 6a and 6b by connection lines 6c. And an audio device 6d.
As shown in FIGS. 2 and 3, one first speaker 6a is attached to each of the four inner side surfaces 3c of the frame 3b at a position substantially at the center in the length direction, and generates a sound. The rectangular frame 3 is oriented such that the direction faces the head 5a of the sensible person 5 sitting on the chair 4 installed in the sound environment sensation space 11.
It is fixed to the frame 3b in a state of being inclined slightly downward from b. In addition, the second speaker 6b is a first speaker 6a located on the back side of the outer surface 3d facing the outside 12 direction among the four outer surfaces 3d of the frame 3b.
Is fixed to the frame 3b with an upper body inclined obliquely downward at a position substantially at the center in the length direction so as to be symmetrical.

As shown in FIG. 4, the acoustic device 6d includes:
A computer 35 comprising sound reproducing means for reproducing a pre-recorded environmental sound signal by a multi-channel multi-channel reproducing method and erasing sound generating means for generating an erasing sound based on an inverse sound transfer function described later;
5, a D / A converter 32a for converting the digital signal from
32b, equalizers 33a and 33b for compensating for deterioration of signals from the D / A converters 32a and 32b, and power amplifiers 34a for amplifying signals from the equalizers 33a and 33b and outputting the amplified signals to the speakers 6a and 6b. 34
b. Note that the acoustic device 6d does not necessarily need to be installed in the sound environment experience space 11, and may be installed outside to be operated by a person other than the experienced person.

In this embodiment, after the speaker holding frames 3, chairs 4, and speaker devices 6 are arranged at predetermined positions in the corners of the model room 10, the curtains 2, 2 suspended on the rails 1 are closed. Model room 10
A sound environment sensation space 11 is formed at the corners of.
The size of the sound environment experience space 11 formed as described above is, as a minimum, the speaker holding frame 3 and the speaker device 6.
And any space that allows the sensible person 5 to sit down or the like can be secured. In addition,
As shown in FIG. 1, by selecting and providing a place where the window 10d is provided on the wall surfaces 10a and 10b as a place where the sound environment sensation space 11 is formed, daylighting is possible during daytime, and illumination is provided. Equipment can be made unnecessary, and the sense of oppression felt by the sensible person 5 in the sound environment sensation space 11 can be reduced.

By operating the speaker device 6 in a state where a sensible person 5 such as a prospective purchaser of an apartment house is seated on the chair 4 installed in the sound environment sensation space 11, four first loudspeakers are operated. Environmental sound such as floor impact sound is generated from 6a,
The sensible person 5 can experience the sound environment in a specific room or the like through his / her own hearing. In this case, the sound to be reproduced includes floor impact sound inside the building, sound insulation from walls, sound based on the natural environment such as the sea and rivers, and the actual sound of the environmental sound based on the external environment such as noise from automobiles and railways. (Hereinafter referred to as “environmental sound”). The environment sound is reproduced by the four first speakers 6a using sound reproduced by a sound reproduction means of the sound device 6d in a multi-channel sound recording / reproducing system in which the sound is distributed to a plurality of channels, for example, 6ch to 4ch. Thereby, three-dimensional sound reproduction can be realized, and the perceived person can experience a situation closer to the actual sound environment. The sound device 6d may be capable of reproducing in the Dolby system, and may use a bodysonic method or the like for reproducing the low-pitched sound range.

When the environmental sound is reproduced, an erasing sound having the same sound pressure in the opposite phase to the environmental sound generated from the first speaker 6a is generated from the second speaker 6b toward the outside 12 direction. Thus, the sound is muted by the interference of the sound waves. Regarding this silencing, first, around the ears of the head 5a of the sensible person 5 sitting on the chair 4 in the sound environment sensation space 11 and the first speaker 6 for each multi-channel in advance.
After obtaining the sound transfer function between a and a, an inverse sound transfer function is calculated based on the sound transfer function within a range of 20 dB from the peak level so as not to distort the signal of the environmental sound to be reproduced. Then, when the environmental sound is reproduced by the first speaker 6a, the erase sound is created by controlling the correction of the environmental sound signal based on the inverse sound transfer function by the erase sound creating means of the computer 35. In this case, external 1
For 2, the synthesized sound of the first speaker 6a leaks for each multi-channel, so that the inverse acoustic transfer function calculated for each multi-channel is added. Based on the sound, the environmental sound is corrected and controlled to create an erasing sound. By generating the generated erasing sound from the second speaker 6b toward the outside 12, sound interference between the environmental sound and the erasing sound occurs, and a sound insulation effect of about 10 dB is provided for the outside 12. Obtainable.

As described above, the sound environment experiencing facility according to the present embodiment includes the second loudspeaker for generating an erasing sound arranged to generate the erasing sound reproduced by the acoustic device to the outside. A loudspeaker device for generating an erasing sound generated from the environmental sound signal based on an inverse sound transfer function to the sound transfer function between the speaker for generating the environmental sound and the head of the sensible person to the outside. Since the sound insulation effect by the sound wave interference is obtained, it is possible to prevent other visitors or the like in the model room or the like from feeling uncomfortable without using an outer wall or the like for sound insulation. Also,
Since the above-mentioned sound device is provided with the sound reproducing means for reproducing the above-mentioned environmental sound by a multi-channel reproduction method of a plurality of channels, it is possible to easily and space-saving in a room such as a model room, and to experience the environmental sound closer to the actual sound. Can be. Also, since the sound environment experience space is shielded from the outside by the curtain as a partition member, it is possible to eliminate the visual influence from the outside which the sensible person receives at the time of the experience, and to concentrate on the environment sound. it can. In the present embodiment, a substantially rectangular sound environment experience space is formed by the partition member held by the L-shaped rail portion. However, the present invention is not necessarily limited to this shape. Any shape can be used as long as the necessary space can be secured. Therefore, for example, the rail portion as the holding member may be formed in an arc shape or the like. In the present embodiment, the sound environment experience space is formed by the curtain as the partition member. However, in order to form the sound environment experience space, it is not always necessary to attach a partition member such as a curtain. Further, the speaker device is not limited to the one supported by the four legs,
For example, by attaching a long-sided base or the like to the lower end of the leg to stabilize it, the leg may be supported by two or one leg, and the leg may be fixed to a chair on which the experienced person sits. Is also good. Also, the number of the first speakers may be less than or more than four as long as three-dimensional sound can be realized. In addition, the number of the second speakers is not limited as long as a noise reduction effect to the outside can be obtained.
Less or more than two may be attached. Further, it is not always necessary to fix the speaker so as to be symmetrical with the first speaker, and the mounting position, the inclination, and the like may be set arbitrarily as long as the speaker is arranged so as to face the external direction.

Embodiment 2 5 (a) and 5 (b) are plan views showing a partition member constituting a sound environment experiencing facility according to Embodiment 2 of the present invention. In the first embodiment described above, the sound environment experience space is formed by partitioning the corners of the room with the partition members held by the L-shaped rails. However, as shown in FIG. Flat wall 10 below
The sound environment sensation space 13 may be formed so as to be partitioned by an openable and closable partition member 8A held by, for example, a semicircular rail portion 7A opposed to a. In this case, the second speaker 6b is formed of four outer surfaces 3d of the frame 3b,
It will be attached to three outer surfaces 3d facing the outside 12 direction. In addition, as shown in FIG.
The sound environment sensed space 13 may be formed by partitioning with the partition member 8B held by the square rail portion 7B without using the 0a or the like. In this case, the second
The speakers 6b are attached to all of the four outer side surfaces 3d of the frame 3b. Thus, the frame 3
b of the outer surface 3d, the outer surface 3d facing the outside 12 direction
By mounting the second speaker 6b on the other hand, it is possible to form the sound environment experience space 13 at a free position other than a corner in a room such as a model room without reducing the noise reduction effect. Note that the shape of the rail portion in the present embodiment is not limited to the above, and various shapes can be used.For example, when a wall is used, a U-shaped shape may be used. When a wall is not used, a circular or elliptical shape may be used.

Embodiment 3 FIG. 6 is a side view showing a speaker holding frame included in the sound environment experiencing facility according to the third embodiment of the present invention. As an example, similar to the first embodiment, a sound environment feeling is provided at a corner of a model room. The case where a space is formed is shown. In the first embodiment, the first speaker 6a is tilted obliquely downward and fixed to the frame 3b so that the first speaker 6a is directed toward the head 5a of the sensible person 5. For example, as shown in FIG. The first speaker is mounted horizontally on the speaker holding frame, and the legs of the speaker holding frame are made to expand and contract in the upward and downward directions. You may be able to do it. In the present embodiment, the second speaker is also mounted horizontally on the outer side surface of the frame body in a portion facing the outside direction so as to correspond to the first speaker. As shown in FIG. 6, for example, the speaker holding frame 9 includes a frame 9b, a first cylindrical leg 9d supporting the frame 9b on the floor 10c, and a cylindrical leg 9d. A cylindrical second leg 9e that is inserted movably upward and downward on the inner peripheral side.
It consists of. On the side surface of the second leg 9e,
A plurality of screw holes 9f are formed in a straight line below, and a through hole 9g having the same diameter as the screw hole 9f is formed in the first leg 9d. The speaker holding frame 9 is in a state where the screw holes 9f and the through holes 9g are aligned.
The height of the frame 9b is fixed by screwing the fixing screws 9h. In this case, in FIG. 6, two screw holes 9f are provided above and below, but the position and the number of the screw holes 9f are not limited thereto, and the number of the screw holes 9f is increased. This allows finer height adjustment. In this case, the first speaker 6a is mounted horizontally so as to face the center of the frame 9b. Note that FIG. 6 shows a case where the sound environment experience space is formed at the corner of the model room, as in the first embodiment, and therefore, the wall direction (left direction and rear direction with respect to the sensation person 5). Is not attached. In FIG. 6, the first speaker 6
For a, only those located in front of and behind the sensible person 5 and for the second speaker 6b only those located in the forward direction of the sensible person 5 are shown, and those located in the left and right directions (second The illustration of only the speaker positioned rightward is omitted.

In the speaker holding frame 9, before the sensible person 5 sits on the chair 4, the second leg 9 e is moved upward in the first leg 9 d as shown by a dashed line in FIG. And the screw hole 9f provided at the lowermost position is aligned with the through hole 9g and fixed with the screw 9h. Then, when the sensible person 5 is seated on the chair 4, the screw 9h is removed, and the first speaker 6a horizontally mounted on the frame 9b is screwed at a predetermined position so as to surround the head 5a of the sensible person 5. Hole 9
f is fixed to the through hole 9g with the screw 9h. As described above, before the sensible person 5 is seated, the frame body 9b is fixed to the upper position, so that the movement of the sensible person 5 such as movement is not disturbed. Also, after the experienced person 5 is seated,
By arranging the first speaker 6a so as to surround the head 5a of the sensible person 5, the sound output generated from the first speaker 6a can be reduced.
The influence of the sound from the speaker can be reduced, and the sensible person 5 can be more concentrated on the environmental sound generated from the first speaker 6a. Note that the legs of the speaker holding frame according to the present embodiment are not limited to those positioned by screw fitting as long as the legs can expand and contract vertically. In addition, when the sensible person is seated on a chair, it shrinks downward in accordance with the sensible person's head, and expands and contracts upward and downward so that the sensible person extends upward while standing up from the chair. May be controlled. Further, in the present embodiment, the first speaker 6a and the second speaker 6b are described as being mounted horizontally. However, the present invention is not limited to this, and the speaker holding frame can be expanded and contracted up and down to various heights. In addition to being settable, the first and second speakers may be fixed at various inclinations other than horizontal. Further, it is not always necessary to fix the inclination of the first and second speakers, and the first and second speakers may be adjusted to an arbitrary inclination during bodily sensation and movement. Also, as in the first embodiment, it is not necessary to fix the second speaker so as to be symmetrical to the first speaker. If the second speaker is arranged so as to face the external direction, the mounting position, the inclination, etc. It may be set arbitrarily. Further, the speaker holding member according to the present embodiment is not limited to the case where the sound environment experience space is formed at the corner of the model room 10, and as described in the second embodiment, any other arbitrary inside the model room. It can also be used when a sound environment experience space is formed in a place. In this case, the number of the second speakers is not limited to the number and the position shown in FIG.

Embodiment 4 FIG. 7 is a perspective view showing a speaker holding member according to a sound environment experiencing facility according to Embodiment 4 of the present invention. As an example, as in Embodiment 1 described above, sound environment feeling is provided at a corner of model room 10. The case where a space is formed is shown. In this figure, reference numeral 15 denotes a speaker holding member formed in a dome (hemispherical shape) opening downward, and a hinge or the like (not shown) is attached to the upper end of a backrest portion 14a of a chair 14 installed in the sound environment experience space. It is attached so as to be able to rotate about 90 degrees through the same. The opening 1
A plurality of first speakers 6a (four in the present embodiment) are mounted at equal intervals in the circumferential direction near the lower end of the inner peripheral surface 15b of the inner peripheral surface 15b, and the first speakers 6a are mounted on the outer peripheral surface 15a.
A plurality of second speakers are attached so as to correspond to the positions where are attached. A display mounting portion 15b is formed so that a part of the lower end of the speaker holding member 15 extends vertically downward, and a display 16 as an image display device is mounted on an inner peripheral surface thereof.
The display mounting portion 15b is formed such that the mounted display 16 is located in front of the head of an imagined person sitting on the chair 14 (not shown). Note that FIG. 7 shows a case where the sound environment experience space is formed at the corner of the model room as in the first embodiment. The second speaker located in the rear direction) is not attached. Also, in FIG. 7, the first speaker 6a and the second speaker 6b attached to the speaker holding member indicated by a chain line.
The illustration of the display 16 is omitted. The size of the speaker holding member 15 is determined by its opening 15a.
The first speaker 6a and the display 16 attached to the inner peripheral surface of the first speaker 6a are positioned at a fixed distance (the first speaker 6a when the person moves the head). And the extent that the display 16 does not hit the display 16). In the speaker holding member 15, before the sensible person sits on the chair 14, the opening 15 a is supported so as to face in the horizontal direction as shown by a dashed line in FIG. In this state, the opening 15a is supported so that the opening 15a faces the floor in a state in which the first speaker 6a is turned forward by about 90 degrees, so that the first speaker 6a attached to the inner peripheral surface of the first speaker 6a is moved to the head of the sensible person. And a display 16 is arranged in front of the head of the sensible person. In this state, the environmental sound is reproduced from the first speaker 6a, and in conjunction with the environmental sound reproduced from the first speaker 6a by the display 16, the image of the external environment such as the cause of the generation of the environmental sound is displayed. Is displayed. In this case, as the image displayed on the display 16, image data of a moving image obtained by recording or simulating an external environment causing an environmental sound at a planned construction site or the like is used in advance. As described above, by attaching the speaker holding member to the chair, the number of components can be reduced and the space can be further reduced. Further, since the dome-shaped speaker holding member is used, the influence of external sound or the like can be reduced, and the sensible person can concentrate more on the environmental sound generated from the first speaker. In addition, a display is provided inside the dome-shaped speaker holding member, and the environmental sound reproduced by the audio device and the image data based on the image of the external environment are linked to be given to the perceived person. In addition to being able to concentrate, the sound environment can be experienced with a feeling closer to actuality, and the soundproofing effect and the like of the target building in the model room or the like can be determined. In addition,
The speaker holding member according to the present embodiment may be manually rotated, or the rotation may be controlled by detecting a state in which a sensible person is seated on a chair.
In the present embodiment, the display is attached to the speaker holding member. However, the display may be attached to the speaker holding frame shown in the first and third embodiments, and the display may be provided with a separate support leg or the like. It may be.

Embodiment 5 In each of the above embodiments, the microphone sensor for taking in noise that enters the sound environment experience space from the outside is attached to a predetermined position in the sound environment experience space or in the vicinity of the sound environment experience space in the outside. The second sound may be reproduced from the second speaker to the outside by the acoustic device alone or together with the erasing sound for the environmental sound by using the acoustic device.
This makes it possible to muffle the sound due to interference with external noise in the vicinity of the sound environment sensation space, and in the sound environment sensation space, let the perceived person hear almost only the environment sound reproduced from the first speaker. Therefore, it is possible to further concentrate on the environmental sound without affecting the sensible person due to external noise. In the present embodiment, the elimination sound for the external noise is reproduced from the second speaker together with the elimination sound for the environmental sound.
A speaker may be separately provided.

[0024]

According to the first aspect of the present invention, a space for experiencing a sound environment is formed in a room, and an environment sound reproduced by an acoustic device is installed in the space and a head of a sensible person in the space. For sound insulation comprising a speaker for generating environmental sound arranged to be directed toward the unit and a speaker for generating an erased sound arranged to generate an erasing sound reproduced by the audio device to the outside It is possible to obtain a sound insulation effect to the outside without using an outer wall or the like, and to prevent discomfort to other visitors or the like in a model room or the like. According to a second aspect of the present invention, in the acoustic device, the environmental sound signal is generated based on an inverse acoustic transfer function with respect to an acoustic transfer function between the environmental sound generating speaker and the head of the sensible person. Since an erasing sound generating means for generating an erasing sound is provided, it is possible to generate an erasing sound that can more reliably provide a sound insulating effect. Claim 3
According to the invention described in (1), the acoustic device includes an acoustic reproduction unit that reproduces the environmental sound by a multi-channel reproduction method of a plurality of channels. In addition to the above, it is possible for the sensible person to experience the environmental sound closer to the actual sound. According to the fourth aspect of the present invention, since the image display device for displaying the image linked to the environmental sound to the sensible person is provided, the user can concentrate more on the environmental sound, and furthermore, the sound can be sensed closer to the actual one. The user can experience the environment, and can judge the soundproofing effect and the like of the building targeted by the model room and the like.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing a configuration of a sound environment experiencing facility according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a sound environment experiencing facility according to one embodiment of the present invention.

FIG. 3 is a side view showing an example of a speaker holding frame included in the sound environment experiencing facility according to the embodiment of the present invention.

FIG. 4 is a simplified block diagram illustrating a configuration of a speaker device according to the present invention.

FIG. 5 is a plan view showing another example of the rail section constituting the sound environment experiencing facility according to another embodiment of the present invention.

FIG. 6 is a side view showing a speaker holding frame included in a sound environment experiencing facility according to another embodiment of the present invention.

FIG. 7 is a perspective view showing a speaker holding frame included in a sound environment experiencing facility according to another embodiment of the present invention.

FIG. 8 is a front view showing the configuration of a conventional sound environment experiencing facility by a perspective method.

FIG. 9 is a block diagram showing a configuration of a conventional sound environment experiencing facility.

[Explanation of symbols]

1, 7A, 7B rail, 2, 8A, 8B curtain, 3, 9 speaker holding frame, 3a, 9d, 9e leg, 3b, 9b frame, 6 speaker device, 6a first
Speaker, 6b Second speaker, 6d Sound device, 4,
14 chairs, 15 speaker holding members, 16 displays.

Claims (4)

[Claims] 1. A space for experiencing a sound environment in a room,
A speaker for environmental sound generation arranged in the space and arranged to generate environmental sound reproduced by the audio device toward the head of the sensible person in the space, and erasure reproduced by the audio device. A sound environment experiencing facility comprising: a speaker device having a speaker for generating a cancellation sound arranged so as to generate a sound to the outside. 2. The erasing device according to claim 2, wherein the acoustic device generates an erasing sound from the environmental sound signal based on an inverse acoustic transfer function to an acoustic transfer function between the environmental sound generating speaker and the head of the sensible person. The sound environment experiencing facility according to claim 1, further comprising a sound creating means. 3. The sound environment according to claim 1, wherein the sound device includes sound reproduction means for reproducing the environmental sound by a multi-channel reproduction method of a plurality of channels. Experience equipment. 4. The sound environment experiencing facility according to claim 1, further comprising: an image display device for displaying a video linked to the environmental sound to the sensible person in the space. The sound environment experience equipment described in any of them.