JP2016144202A - Sensory acoustic system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sensory acoustic system capable of pseudo experiencing ballottement of dancing to music in an acoustically isolated space such as a dance studio out of the space.SOLUTION: The sensory acoustic system includes: a microphone for outputting a microphone signal by collecting sound inside a partitioned space; a vibrating device disposed outside of the space; a speaker for emitting sound outside of the space; and an amplification device for driving the vibration device and the speaker by amplifying the microphone signal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a body sensation sound system.

  Dance studios and ateliers (hereinafter also simply referred to as studios) for lessons such as butoh where choreography can be performed in various dance steps are known. Wide windows are often provided on the walls that divide the space inside the studio. To view the lesson scene in the studio, you have to stand outside the window provided in the studio and listen to the sound leaked outside the studio from the walls and windows. Was required to enter the studio directly. However, it is usually prohibited for visitors to enter the studio, and even if they can enter with permission, there are cases where the practice of dance performed in the studio is hindered.

  On the other hand, as a body acoustic device, a foot-mounted body acoustic device (Patent Document 1) mounted inside a footrest on which an electromechanical vibration converter is installed on the floor, or a transducer on a frame constituting a frame of a seat via a belt An in-vehicle sensory sound device (Patent Document 2) with a ring-shaped vibration frame that supports the base, and a bass woofer placed inside the seating part, and a duct that extends to the ear position of the backrest part. A personal sound field system (Patent Document 3) that connects and outputs a low-frequency component sound output from a woofer from an ear position via a duct is known.

Japanese Patent Publication No. 7-106215 Japanese Utility Model Publication No. 6-23389 International Publication WO2006 / 109389

  However, none of the body sensation sound apparatuses described in any of the documents is suitable as a device for simulating the state of a sound-insulated studio.

  As a problem to be solved by the present invention, there is provided a sensory sound system capable of experiencing a dynamic feeling of dance according to music in a sound-insulated space like a dance studio outside the space. Is given as an example. In addition, as a problem to be solved by the present invention, the provision of a facility such as a studio equipped with the above-described body sensation sound system is given as an example.

The body sensation acoustic system according to claim 1 is a microphone that collects sound and outputs a microphone signal in a partitioned space;
A vibration device disposed outside the space;
A speaker that emits sound outside the space;
An amplifying device for amplifying the microphone signal to drive the vibration device and the speaker;
It is characterized by comprising.

FIG. 1 is a schematic plan view showing an embodiment of a bodily sensation sound system arranged in a dance studio according to the present invention. FIG. 2 is a partial perspective view illustrating a part of the outside of the dance studio according to the first embodiment. FIG. 3 is a schematic plan view showing Embodiment 2 of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. In all the drawings, the same reference numerals are given to the same components, and the description will be omitted as appropriate.

  The outline of the body sensation sound system installed in the building of the present embodiment will be described with reference to the drawings. FIG. 1 shows a schematic plan view of a dance studio, except for the ceiling. FIG. 2 is a partial perspective view of the dance studio as viewed from the outer wall side, except for the ceiling.

  As shown in FIG. 1 and FIG. 2, the body sensation sound system 1 of the present embodiment is provided inside and outside the studio 11. The studio 11 has a space 13a defined by sound insulating walls 13 made of, for example, inner and outer wall portions and fillers therein. The studio 11 is constructed so as to have, for example, a D value defined in JIS A 1419-1, for example, D45 to D60, as a sound insulation performance value.

  The interior space 13a of the studio 11 is provided with an internal speaker 15 that radiates sound, for example, suspended from a ceiling (not shown) in order to perform dance lessons in accordance with various music. . A playback device 17 and an amplifier 19 that are signal sources for signals output to the internal speaker 15 are provided in a room adjacent to the studio 11, for example. For example, a reproduction signal (acoustic signal) from a reproduction device 17 such as a CD player or a DVD player is output to the amplifier 19. Connection wiring between the internal speaker 15 and the amplifier 19 is appropriately installed on the floor, wall, and ceiling of the studio 11.

  For example, a passage 21 is provided outside the studio 11. A window 23 is provided in a part of the wall 13 that partitions the space 13a so that the inside of the studio 11 can be viewed from the passage 21. The window 23 is formed from transparent laminated glass, for example.

  The body sensation sound system 1 has a microphone 25 provided inside the studio 11. The microphone 25 collects not only the music emitted from the internal speaker 15 but also various sounds such as the dance instructor's voice and the dance step sound of people dancing to the music, and outputs a microphone signal. The microphone 25 is preferably a hemispherical omnidirectional microphone (referred to as a boundary microphone) provided on the wall surface or ceiling in the studio 11. Of course, the microphone 25 may be an omnidirectional microphone provided on a stand built on the floor in the studio 11. Further, the microphone 25 may be a directional microphone. The directional microphone collects sound at a desired location where the atmosphere in the studio can be felt. The number of microphones 25 is not limited to one, and two or more microphones arranged at different positions may be used.

  The body sensation sound system 1 includes a vibration device 27 disposed outside the studio 11, for example, in the passage 21. The vibration device 27 is disposed on the floor surface of the passage 21 where the viewer H can view the inside of the studio 11 through the window 23. More specifically, the vibration device 27 is arranged in accordance with a position where a viewer who views the inside of the studio 11 through the window 23 stands. The vibration device 27 is a vibration device that is driven by an amplified signal having a low-frequency component obtained by removing a high-frequency component from the microphone signal output from the microphone 25. The vibration device 27 is held at the same level as the floor surface of the passage 21 and has a flat top plate having a surface bonded to the floor surface so as to vibrate freely, and an electromechanical transducer (not shown) fixed to the back surface of the top plate. Consists of. The electromechanical transducer is driven by an amplified signal obtained by amplifying the low frequency component of the microphone signal, and vibrates the top plate. Therefore, the top plate of the vibration device 27 gives vibration to the viewer H standing on it. Note that one vibration device 27 may be provided, or two or more vibration devices 27 may be arranged side by side.

  Furthermore, the body sensation sound system 1 includes a speaker 29 that emits sound in a passage 21 that is outside the space 13a. Two speakers 29 are embedded side by side along the window 23 on the ceiling (not shown) above the viewer H standing on the vibration device 27. If the ceiling is high, the speaker 29 can be installed on the outer wall surface of the studio above the viewer H standing on the vibration device 27.

  The speaker 29 is not particularly limited, but may be a directional speaker. For example, if the speaker 29 has a narrow directivity, the speaker 29 is provided on the passage ceiling so as to face the viewer H, that is, the vibration device 27. The speaker 29 may be designed to have directivity capable of delivering sound within a predetermined distance from the studio window 23, for example, in a range equal to or larger than the total area of the vibration device 27.

  The speaker 29 may be a headphone 29a that can be worn by the viewer H. As shown in FIG. 2, the headphones 29a may be hooked on the wall 13 near the viewer H standing on the vibration device 27, for example.

  The body sensation sound system 1 includes an amplification device 31 that amplifies the microphone signal output from the microphone 25 and drives the vibration device 27 and the speaker 29. The amplifying device 31 amplifies the microphone signal from the microphone 25 and outputs the amplified signal to the speaker 29. Therefore, the sound in the studio collected by the microphone 25 is radiated in real time from the overhead of the viewer H on the vibration device 27. As shown in the drawing, installing the speaker 29 on the ceiling above the viewer H standing on the vibration device 27 brings about an effect that the viewer H can hear the sound in the studio effectively. Even if the speaker 29 does not have a narrow directivity, it is possible to minimize the sound in the studio radiated from the speaker 29 from reaching other facilities provided on the same floor as the studio 11.

  The amplifying device 31 also generates a low-frequency component signal (subwoofer signal) obtained by removing the high-frequency component of the microphone signal from the microphone 25 with a low-pass filter, and drives the vibration device 27 with the signal. Therefore, the vibration in the studio collected by the microphone 25 is transmitted to the viewer H on the vibration device 27 in real time.

  Connection wiring between the amplifier 31 and the microphone 25, the vibration device 27, and the speaker 29 is appropriately installed on the floor, wall, and back of the ceiling of the studio 11.

  Furthermore, the body sensation sound system 1 can also include a human sensor Se system such as an infrared sensor. As shown in FIG. 2, the human sensor Se detects whether or not the viewer H stands on or near the vibration device 27, for example.

  When the human sensor Se detects that the viewer H is standing on or in the vicinity of the vibration device, the human sensor Se outputs a start signal to the amplifying device 31, and the amplifying device 31 receiving the start signal receives the start signal. Driving of the vibration device 27 and the speaker 29 is started. When the human sensor Se detects that the viewer H is not standing on or near the vibration device, the human sensor Se outputs a stop signal to the amplifying device 31, and the amplifying device 31 includes the vibration device 27 and the speaker. 29 is stopped immediately or after a predetermined time.

  Thus, according to the sensation sound system 1 of the present embodiment, the viewer H on the vibration device 27 can experience the sound and vibration in the studio while watching the dance lesson from the studio window 23. That is, the viewer H can experience the state in the studio in a simulated manner.

  The position where the studio window 23 is attached is merely an example, and the present embodiment is not limited to this. For example, most of the area of the wall 13 may be composed of a window 23 using a plastic plate such as a soundproof glass plate or transparent acrylic.

  Here, the present embodiment has been described as a studio (facility) to which the window 23 is attached, but is not particularly limited as long as it is a desired studio without the window 23. For example, the studio 11 may be a recording studio, a rehearsal studio, or the like. In addition, these are illustrations, and the studio (facility) of a present Example is not limited to these. In the case of a studio without the window 23, a thin display (not shown) may be provided instead of the window. In this thin display, for example, the outer wall of the wall 13 at the position of the viewer H standing on the vibration device 27 is thin enough to support 8K (7680 × 4320 pixels, about 33 million pixels of ultra-high definition video). A display may be used. Then, an 8K video camera (not shown) is provided in the studio 2, and the camera captures the state of the dance lesson, and the state in the studio is displayed on the 8K thin display. Also by this, the same effect as the embodiment in the case of the studio having the window 23 can be obtained. When a display is used instead of a window, it is possible not only to display a camera image on the display but also to display a dance lesson advertisement or the like simultaneously with the camera image or by switching to the camera image.

  The outline | summary of the bodily sensation sound system 1 installed in the building of a present Example is demonstrated using FIG. The body sensation sound system 1 of the present embodiment is the same as that of the first embodiment except that it further includes a selection device 33 for switching the microphone signal of the microphone 25 and the output signal from the playback device 17. The description of the same components as those in the first embodiment is omitted.

  The selection device 33 connected to the microphone 25 and the playback device 17 selects the output signal of the playback device 17 and the microphone signal from the microphone 25 and outputs one of the signals to the amplification device 31. The selection device 33 includes a manual switch (not shown) that switches between the output signal of the playback device 17 and the microphone signal from the microphone 25. The manual switch can be attached to the outer wall under the window 23 of the studio so that the viewer H standing on the vibration device 27 can operate, for example. Connection wiring between the selection device 33 and its manual switch is appropriately constructed on the floor of the studio 11 and the back side of the wall.

  According to the second embodiment, the selection device 33 selectively obtains a pseudo-experience effect similar to that of the first embodiment and an opportunity for the viewer H standing on the vibration device 27 to directly view music flowing in the studio. be able to.

1 sensory sound system 23 window 25 microphone 27 vibration device 29 speaker 31 amplifying device Se human sensor H viewer

Claims (9)

A microphone that collects sound inside the partitioned space and outputs a microphone signal;
A vibration device disposed outside the space;
A speaker that emits sound outside the space;
An amplifying device for amplifying the microphone signal to drive the vibration device and the speaker;
A bodily sensation acoustic system characterized by comprising: A window is provided on the wall that divides the space,
The body sensation sound system according to claim 1, wherein the vibration device is arranged on a floor surface on which a viewer who views the space through the window can stand on the vibration device.   The body sensation sound system according to claim 2, wherein the speaker is disposed above a viewer standing on the vibration device.   The body sensation sound system according to claim 2, wherein the speaker is a headphone that can be worn by a viewer standing on the vibration device. The bodily sensation sound system further includes a human sensor that detects whether or not a viewer stands on or near the vibration device,
5. The amplification device drives the vibration device and the speaker when the human sensor detects that a viewer stands on or near the vibration device. 6. The bodily sensation sound system as described in any one.   6. The body sensation acoustic system according to claim 1, wherein the amplifying device drives the vibration device by an amplified signal from which a high frequency component of the microphone signal has been removed. The bodily sensation sound system is
An internal speaker provided inside the space;
A playback device for outputting an acoustic signal to the internal speaker;
A selection device that selects and outputs either the acoustic signal or the microphone signal to the amplification device;
The body sensation sound system according to claim 1, wherein the body sensation sound system is provided.   The bodily sensation sound system is installed in a building, the vibration device is arranged outside the space in the building, and the speaker radiates sound outside the space in the building. The body sensation acoustic system according to any one of claims 1 to 7. A microphone that collects and outputs a microphone signal;
A vibration device;
Speakers,
An amplification device configured to amplify the microphone signal and drive the vibration device and the speaker;
A bodily sensation sound system.

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