JP2023055174A - Sound experiencing method and sound experiencing system - Google Patents

Abstract

To provide a sound experiencing method and sound experiencing system easily acquiring desired pseudo sound by easily installing necessary apparatuses and constructing a system according to selection and change in a building and rooms.SOLUTION: A sound experiencing method includes: collecting and recording first sound propagating from an opening Sa of an anechoic space S to the inside of a first room P via a ceiling Ba, due to first external force applied by a user U1 to a floor Bb of a second room Q above the first room P corresponding to the boundary B; causing a second measuring part 12 to measure a physical quantity relating to second external force applied by a user U2 to a floor B1b of a third room R; calculating a physical quantity relating to second sound assumed to propagate in the third room R based on the stored physical quantity relating to the first external force and physical quantity relating to the first sound, and the physical quantity relating to the second external force; and causing a sound source part 6 to transmit the second sound in the third room R based on the physical quantity relating to the second sound, thereby to allow the user U3 to experience it.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound sensation method and a sound sensation system for simulating noise in adjacent rooms in, for example, an apartment complex.

Conventionally, noise countermeasures for each room have been an important issue for housing complexes and the like. For example, walls and floors made of materials with high sound absorption and sound insulation properties were expected to have the effect of making it difficult to hear sounds between adjacent rooms. However, it was not easy for the occupants of the other room to determine whether it was noise or not, depending on their lifestyle and time of day. For this reason, a system has been proposed in which the residents themselves listen to the sounds caused by their own actions and simulate whether or not they are noises.

For example, in Patent Document 1, a first external force is applied from a second room to a box-shaped anechoic space with an opening sealed at the boundary between a second room and an adjacent second room. , the excitation force (N) that vibrates the boundary and the vibration acceleration (m/s ² ) of the boundary as physical quantities related to the first external force are measured by a vibrometer and an accelerometer that are measurement units, and are measured from the boundary in an anechoic space. Collecting and recording propagating sound, calculating an impulse response as a physical quantity related to the sound based on the physical quantity related to the first external force, applying the second external force from the second room to the boundary, and obtaining the physical quantity related to the second external force. Measure the excitation force (N) that vibrates the boundary and the vibration acceleration (m/s ² ) of the boundary, and generate the corrected sound by combining the physical quantity and impulse response related to the second external force (so-called convolution) Then, a correction sound is emitted in the second room, thereby simulating the noise of the adjacent room (Claim 3, paragraphs "0013", "0029", and "0030"). "reference).

Japanese Patent Application Laid-Open No. 2020-64142

However, with the technology disclosed in Patent Document 1, there are restrictions on where to install the vibrometer that measures the vibration of the boundary and the accelerometer that measures the vibration acceleration of the boundary, and the installation method requires specialized knowledge. bottom. In other words, the size of the main body and measurement part of the vibration meter and accelerometer is small, and special jigs and methods for installation are required. Therefore, it was necessary to prepare equipment and build a system for each room where the simulated experience was to be implemented.

Therefore, if it is possible to flexibly prepare equipment and build a system according to the place and time you want to have a simulated experience, you can realize a simulated experience in any building or room. There are multiple types of building structures and room materials, and these properties may change due to aging or the environment. In particular, the inventors arrived at the end of their originality and ingenuity.

Also, the physical quantity related to the external force applied to the boundary from the second room varies depending on the source of the external force. That is, depending on whether the source of the external force is a human or a machine, and whether the contact portion with the boundary is hard or soft, the physical quantity related to the external force differs, and accordingly the physical quantity related to the sound propagated by the external force also differs. Therefore, the inventors have clarified the correlation between the physical quantity related to the external force, the physical quantity related to the sound, and the action source of the external force. I arrived at the end of my ingenuity.

Therefore, an object of the present invention is to provide a sound sensation method and a sound sensation system that facilitate installation of necessary equipment and construction of a system according to the selection or change of a building or room and obtain a desired pseudo sound. be.

That is, the present invention is a computer-implemented sound sensation method, which measures a physical quantity related to a first external force applied to the floor of a second room, which is the upper floor of the first room. Collecting and recording the first sound propagating in the first room, calculating the physical quantity related to the first sound,
A physical quantity related to the first external force and a physical quantity related to the first sound are stored in association with each other, a physical quantity related to the second external force applied to the floor of the third room is measured, and the stored physical quantity related to the first external force and the physical quantity related to the first sound are measured. Based on the physical quantity related to the first sound and the physical quantity related to the second external force, calculate the physical quantity related to the second sound assumed to propagate in the third room, and calculate the physical quantity related to the second sound based on the physical quantity related to the second sound. The method includes transmitting a second sound into the room.

Here, the physical quantity related to the first external force and the physical quantity related to the second external force are pressure, and the pressure can be measured by pressure sensors provided on the floor of the second room and the floor of the third room, respectively. desirable.

Also, the physical quantity related to the first external force is the acceleration of the source of the first external force, the physical quantity related to the second external force is the acceleration of the source of the second external force, and the acceleration is the source of the first external force and Preferably, the acceleration sensor is arranged to follow the motion of each of the second external force sources. Here, the type, specifications, features, etc. of the source of action of the first external force are the source information of the first external force, and the type, specification, features, etc. of the source of action of the second external force are the source information of the second external force. may be stored as

Furthermore, in the method described above, it is desirable that the first room, the second room, and the third room are located in different buildings and have different structures.

Further, the present invention is a computer-executed sound sensation method, which measures a physical quantity related to a first external force applied to the floor of a second room, which is the upper floor of the first room, and Collecting and recording a first sound propagating in a first room, calculating a physical quantity related to the first sound, calculating a physical quantity related to the first external force, information on the source of the first external force, and information related to the first sound the physical quantity associated with the second external force applied to the floor of the third room is measured; Using the learned prediction model, the action source of the second external force predicted from the physical quantity relating to the second external force is determined, and the stored physical quantity relating to the first sound and the determined action source of the second external force are determined. Based on the information, calculate the physical quantity related to the second sound assumed to propagate in the third room, and transmit the second sound into the third room based on the physical quantity related to the second sound. characterized by comprising

The present invention is also a computer-implemented sound sensation system, comprising a first room, a second room above the first room, a third room, and a predetermined room. a measuring unit that measures the physical quantity related to the external force, a computing unit that calculates the physical quantity related to the sound caused by the external force, a storage unit that stores the physical quantity related to the external force and the physical quantity related to the sound, and a sound collection that collects the sound that propagates in a predetermined room. It comprises a sound section, a sound recording section for recording sound collected by the sound collection section, and a sound source section for transmitting sound within a predetermined room. a first measuring unit that measures a physical quantity related to one external force; and a second measuring unit that measures a physical quantity related to a second external force applied to the floor of the third room. A first sound that is propagated in a first room by one external force is collected, and a computing unit calculates a physical quantity related to the first sound caused by the first external force, and a second external force. a second computing unit that calculates a physical quantity related to the second sound by the storage unit associates and stores the physical quantity related to the first external force and the physical quantity related to the first sound, and the second computing unit is a physical quantity related to the second sound assumed to propagate in the third room based on the physical quantity related to the first external force and the physical quantity related to the first sound stored in the storage unit, and the physical quantity related to the second external force is calculated, and the sound source unit emits the second sound into the third room based on the physical quantity related to the second sound.

The present invention is also a computer-implemented sound sensation system, comprising a first room, a second room above the first room, a third room, and a predetermined room. a measuring unit that measures the physical quantity related to the external force, a computing unit that calculates the physical quantity related to the sound caused by the external force, a storage unit that stores the physical quantity related to the external force and the physical quantity related to the sound, and a sound collection that collects the sound that propagates in a predetermined room. It comprises a sound section, a sound recording section for recording sound collected by the sound collection section, and a sound source section for transmitting sound within a predetermined room. a first measuring unit that measures a physical quantity related to one external force; and a second measuring unit that measures a physical quantity related to a second external force applied to the floor of the third room. A first sound that is propagated in a first room by one external force is collected, and a computing unit calculates a physical quantity related to the first sound caused by the first external force, and a second external force. and a second computing unit that calculates a physical quantity related to the second sound according to , and the second computing unit uses a prediction model machine-learned using the physical quantity related to the first external force and the action source information of the first external force stored in the storage unit as teacher data to perform a second calculation. Determine the action source information of the second external force predicted from the physical quantity relating to the external force, and based on the physical quantity relating to the first external force stored in the storage unit and the determined action source information of the second external force, the third A physical quantity related to the second sound assumed to propagate in the room is calculated, and the sound source section transmits the second sound into the third room based on the physical quantity related to the second sound.

According to the sound sensation method and the sound sensation system of the present invention, it is possible to expect an effect that it is easy to install the necessary equipment and construct the system according to the selection or change of the building or room, and to easily obtain the desired pseudo sound. It can be used not only for field tests and performance evaluations of the materials of floors, ceilings, walls, etc., which correspond to boundaries between adjacent rooms, but also for architectural exhibitions, museums, amusement parks, etc.

FIG. 4 is a conceptual diagram showing the state of database generation (a) and sound experience (b) in the method of experiencing sound according to an embodiment of the present invention. It is a functional block diagram explaining a part of the system which performs the said sound sensation method. FIG. 4 is a diagram showing the flow of database generation (a) and sound experience (b) in the above-described sound sensation method. FIG. 10 is a diagram showing the flow of another database generation time (a) and sound experience time (b) in the sound sensation method.

Hereinafter, with reference to FIGS. 1 and 2, an example of the sound sensation method (hereinafter also referred to as "real sound sensation method") in one embodiment of the present invention will be described. Also referred to as a bodily sensation system.). In these figures, there are portions where only one portion is numbered for the same portions that exist in plural numbers.

<Environment for executing the real intention experience method>
As shown in FIG. 1(a), this method of experiencing sound is, for example, a first room P in an apartment building, and a human footstep received from a second room Q corresponding to the upper floor of the first room P. As shown in FIG. 1(b), the sound such as the collision sound of an object is a method of experiencing a pseudo sound in a second room Q or a third room R corresponding to a different room, The sounds generated in the second room Q and heard in the first room P are stored in a database, and the pseudo sounds generated based on the databased sounds and the sounds generated in the third room R are generated in the third room. Make a call in room R of . The floor of the third room R may be assumed to be the first floor or the second floor or higher of the housing complex.

This sound experience method is not limited to collective housing, but can also be used for detached houses, temporary housing, schools, hospitals, facilities for the elderly, facilities for the disabled, and various commercial facilities.・The structure and size of the wooden structure are not limited, and vehicles such as automobiles and ships may be assumed. The first room P and the second room Q may be adjacent living rooms on the same floor or adjacent living rooms in the same room. Each room can be of any size and layout. Boundary B may be a partition wall between rooms, an opening door between rooms, or a viewing window within each room. The size and material of the boundary B may be any.

<Details of anechoic space>
As shown in FIG. 1(a), the anechoic space S suppresses the reverberation of the sound generated in the second room Q and heard in the first room P; Since it is used to collect and record the only sound, its absence does not adversely affect the performance of the method for experiencing the true sound. The anechoic space S is of a size that can be accommodated in the first room P, and has the shape of a living room with sound-absorbing panels lined inside, and has a rectangular opening Sa at the upper end, in other words, does not have a ceiling. With the anechoic space S standing on the floor of the first room P, the upper edge of the anechoic space S is in contact with the boundary B and the opening Sa is blocked. The anechoic space S is installed near the wall of the first room P, but may be installed in the center.

The anechoic space S may be formed by covering the inside of the first room P or a living room in the first room P with sound absorbing panels. The anechoic space S may match the layout or size of the first room P. For example, in the case of 3LDK, the position and size of the anechoic space S are equivalent to the position and size of one of the living rooms. good too. The anechoic space S may have a door through which a person can enter and exit. The opening Sa may be a through hole provided in the sound absorbing panel forming the anechoic space S. The anechoic space S may be assembled in the first room P, or an existing one may be installed in the first room P.

<Details of the measurement unit>
As shown in FIGS. 1 and 2, the measurement unit 1 measures physical quantities related to external forces generated in a predetermined room. A first measuring unit 11 installed on the floor Bb and a second measuring unit 12 installed on the floor B1b of the third room R may be provided. The first measurement unit 11 and the second measurement unit 12 may be described as the measurement unit 1 because they have the same specifications regardless of where they are installed.

The first measuring unit 11 measures the physical quantity related to the first external force applied to the floor Bb of the second room Q, and the second measuring unit 12 measures the second external force applied to the floor B1b of the third room R. measure the physical quantity related to the external force of The measurement unit 1 is a pressure sensor that measures the pressure (unit: Pa, N/m ² ) applied to the floor as a physical quantity related to external force, and is not limited to the strain gauge type. Any sensor may be used, preferably a sheet-type pressure sensor.

The measurement unit 1 may be an acceleration sensor that measures the acceleration (unit: m/s ² ) of the action source of the external force as a physical quantity related to the external force, other than the pressure sensor. may be a wearable acceleration sensor that can be attached to and detached from a human leg as a source of external force. The action source of the external force means the source of action of the external force itself and/or the contact part of this source of action with the floor. The contact part includes human bare feet, footwear such as shoes and slippers worn on the human bare foot, and the tip part of the machine. may be defined as

The measurement unit 1 may be a vibration meter that measures the excitation force (unit: N) with which the action source of the external force vibrates the floor, or a vibration accelerometer that measures the vibration acceleration (unit: m/s ² ) of the floor. The measurement unit 1 is not limited to a pressure sensor, and may be configured by combining two or more types of acceleration sensors, vibration meters, and vibration accelerometers.

<Sound collection/recording unit>
As shown in FIG. 1(a), the sound collector 2 is a microphone installed in the center of the anechoic space S or other locations. As shown in FIG. 2, the recording unit 3 is a recording device connected to the sound collection unit 2 or a general-purpose computer device with a recording function, which converts analog data of recorded sound into digital data such as MP3 and converts it into electronic data. It is intended to be able to process effectively. The sound collecting unit 2 and the recording unit 3 may be provided integrally, or they may be included in a general-purpose computer device.

<Calculation unit/storage unit>
As shown in FIG. 2, the calculation unit 4 includes a first calculation unit 41 that calculates a physical quantity related to a first sound generated by a first external force, and a physical quantity related to a second sound generated by a second external force. and a second calculation unit 42 for calculating. The first arithmetic unit 41 and the second arithmetic unit 42 are executed as functions installed in the arithmetic unit 4, respectively, but are physically different parts that are executed as the arithmetic unit 4. may be

The first computing unit 41 receives digital data of sound from the recording unit 3, and uses sound pressure (unit: dB), which is the volume of the sound, and frequency (unit: dB), which is the pitch of the sound, as physical quantities related to the first sound. Hz). The first calculation unit 41 receives the physical quantity related to the first external force from the first measurement unit 11 . The first computing unit 41 associates the physical quantity related to the first external force with the physical quantity related to the first sound, and provides the storage unit 5 with the physical quantity.

The second calculation unit 42 receives the physical quantity regarding the second external force from the second measurement unit 12 . The second calculation unit 42 assumes that the sound propagates in the third room R based on the physical quantity related to the first external force, the physical quantity related to the first sound, and the physical quantity related to the second external force stored in the storage unit 5. A physical quantity relating to the pseudo second sound to be played is calculated. The second calculation unit 42 provides the physical quantity related to the second sound to the storage unit 5, and stores the physical quantity related to the second sound as the physical quantity related to the first external force, the physical quantity related to the first sound, and the physical quantity related to the second external force. may be provided to the storage unit 5 in association with at least one of

The storage unit 5 stores a physical quantity related to the first external force, stores a physical quantity related to the first sound, associates and stores the physical quantity related to the first external force and the physical quantity related to the first sound, and stores the physical quantity related to the first external force. The physical quantity related to the second external force is stored, the physical quantity related to the second sound is stored, and the physical quantity related to the second sound is stored as at least the physical quantity related to the first external force, the physical quantity related to the first sound, and the physical quantity related to the second external force. Storing in association with one, storing the action source information of the first external force, storing the action source information of the second external force, or storing the action source information of the first external force and the action source of the second external force Information may be stored in association with the various physical quantities described above, but not limited to these, various types of information such as structural information and numerical information related to buildings are stored, and these are added, deleted, overwritten, and modified at any timing. It may be possible. The calculation unit 4 may generate a waveform by appropriately selecting or combining physical quantities related to external force, physical quantities related to sound, source information of the external force, and information related to these stored in the storage unit 5 .

The calculation unit 4 may calculate an impulse response as a physical quantity related to sound based on the physical quantity related to the external force. The calculation unit 4 may generate a sound correction sound by combining a physical quantity and an impulse response related to another external force (so-called convolution). Calculation 4 automatically converts digital data of sounds generated based on physical quantities related to other sounds or correction sounds of sounds into analog data after a predetermined time has elapsed or in accordance with electronic commands such as switch signals. You can call from

<Sound source section>
As shown in FIG. 1(b), the sound source unit 6 is a speaker installed on the ceiling of the third room R, and may be installed anywhere in the room. It may be provided at a position that facilitates improvement, and more preferably at a position in the third room R that is farthest from the measuring section 12 . The sound source unit 6 may be a movable headphone or earphone instead of a fixed speaker, and these may be wired type or wireless type.

<System configuration including measurement unit, sound collection unit, recording unit, calculation unit, storage unit, sound source unit>
The recording unit 3, the computing unit 4, the storage unit 5, and various other devices may be installed in the first room P, the second room Q, the third room R, or other rooms. The recording unit 3, the computing unit 4, and the storage unit 5 may be integrated general-purpose computer devices, or may be various parts that make up or function them. In order to connect the measurement unit 1, sound collection unit 2, recording unit 3, calculation unit 4, storage unit 5, and sound source unit 6, the internet, intranet, extranet, LAN, CATV communication network, VPN, telephone line, Communication equipment that performs communication by mobile communication network, satellite communication network, IEEE1394, power line carrier, telephone line, IrDA, Bluetooth (registered trademark), 802.11 wireless, mobile phone network, satellite circuit, terrestrial digital network, etc. Be prepared.

The above-mentioned general-purpose computer device corresponds to, for example, a personal computer, an electronic terminal device such as a smartphone, or a server device. CPU for processing and control, ROM for storing electronic data such as software, programs, characters, images, etc. related to various operations, RAM for loading programs and electronic data, keyboard, mouse, touch panel, camera, voice recorder etc., output devices such as screen/audio output speakers, drives for removable media such as magnetic disks, optical disks, magneto-optical disks, and semiconductor memories that write and read electronic data, and for connecting these to each other One or more of the buses may be provided. There may be one general-purpose computer device or two or more general-purpose computer devices, and the functions may be concentrated in one or distributed in two or more as long as each function is performed.

<Flow of real feeling experience method>
First, as shown in FIGS. 1A and 2, an anechoic space S in a first room P, a sound collector 2 in the anechoic space S, and a first floor Bb in a second room Q A sheet-type pressure sensor is installed as the measurement unit 11, and a recording unit 3, a first calculation unit 41, and a storage unit 5 are installed at predetermined locations other than the first room P and the second room Q, respectively. The first room P and the second room Q may be located, for example, in an exhibition room that is not open to the public, and the user U1 may belong to a laboratory or an exhibition room.

Then, as shown in FIGS. 1(a), 2, and 3, the user U1 in the second room Q faces the anechoic space S in the first room P. When a first external force is applied to the first measuring unit 11 by stepping on the floor Bb in the second room Q from directly above while making a "thumping" sound, the first measuring unit 11 moves to the first is detected, the pressure is measured as a physical quantity related to the first external force (step S110), and the measured pressure is provided to the first calculator 41. FIG. Almost at the same time, the first sound due to the first external force travels along the boundary B and propagates from the ceiling Ba of the first room P into the anechoic space S. The first sound propagated in the anechoic space S does not reverberate, and the sound collector 2 and the recording unit 3 collect and record only the propagated first sound (step S120). The recording unit 3 provides the recorded first sound to the first calculation unit 41, and the first calculation unit 41 calculates sound pressure and/or frequency as physical quantities related to the first sound (step S130). .

The first computing unit 41 associates the physical quantity related to the first external force with the physical quantity related to the first sound and stores them in the storage unit 5 (step S140). As an example of a specific storage method, the first calculation unit 41 analyzes the correspondence relationship between the pressure of the first external force and the sound pressure and/or frequency of the first sound, and for example, per unit time These may be associated with each other, or the amount of change thereof per unit time may be calculated and associated, and these may be stored as analysis results.

Next, as shown in FIGS. 1(b) and 2, a sheet-type pressure sensor as the second measuring unit 12 is installed on the floor B1b in the third room R, and a speaker is installed as the sound source unit 6 on the ceiling. . The third room R may or may not be the second room Q itself shown in FIG. 1(a). If so, the third room R is the second room Q with pre-installed speakers on the ceiling. Otherwise, no speakers are installed in the ceiling of the third room R, and headphones may be employed instead. The third room R may be in a location open to the public, such as an exhibition room. The user U2 may or may not be the same person as the user U1, and may be a visitor visiting the laboratory or exhibition room.

Then, as shown in FIGS. 1(b), 2 and 4, the user U2 in the third room R steps on the floor B1b with his/her leg while making a "thumping" sound, and the second measuring unit 12 When a second external force is applied to the second measuring unit 12, the second measuring unit 12 detects the second external force, measures the pressure as a physical quantity related to the second external force (step S210), and outputs the measured pressure to the second computing unit 42.

The second computing unit 42 calls the pressure of the first external force and the sound pressure and/or frequency of the first sound stored from the storage unit 5, and based on the pressure of the second external force, The sound pressure and/or frequency of the second sound that is assumed to propagate in R is calculated (step S220). As an example of a specific calculation method, the sound pressure per unit pressure calculated from the amount of change in the pressure of the first external force per unit time and the amount of change in the sound pressure and/or frequency of the first sound and/or Alternatively, the sound pressure and/or frequency of the second sound assumed to occur in response to the pressure of the second external force may be calculated based on the frequency, and the first sound pressure distribution close to the pressure distribution of the second external force may be calculated. and adjusting the sound pressure and/or frequency of the first sound associated with the pressure portion of the selected first external force to calculate the sound pressure and/or frequency of the second sound You may Digital data of the second sound based on the sound pressure and/or frequency of the second sound calculated by the second calculation unit 42 is converted into analog data via a predetermined amplifier and reproduced by the sound source unit 6 (step S230).

A user U3 in the third room R experiences a pseudo sound reproduced from the sound source unit 6 as sound transmitted to a virtual room (not shown) corresponding to the lower floor of the third room R. The user U3 may or may not be the same as the user U2, and if they are the same, the user U3 may arbitrarily turn ON/OFF the reproduction of the simulated sound from the sound source unit 6 with a switch or the like.

According to this method, a sheet-type pressure sensor that is easy to carry and detachable from the floor is adopted as the measurement unit 1, and the correspondence relationship between the pressure of the first external force and the sound pressure and/or frequency of the first sound. Analyze the analysis results into a database, and based on these analysis results, the effect of facilitating calculation of the sound pressure and / or frequency of the pseudo second sound assumed to be caused by the pressure of the new second external force can be expected.

<Flow of real sound sensory method by different measurement units>
Also, the measurement unit 1 may be a wearable acceleration sensor provided to follow the motion of the legs of the user U1 or U2 instead of the sheet-type pressure sensor. In this case, the first computing unit 41 analyzes the correspondence relationship between the leg acceleration of the user U1 as the physical quantity related to the first external force and the sound pressure and/or frequency of the first sound. These may be associated with each other, or the amount of change thereof per unit time may be calculated and associated, and these may be stored as analysis results. When the first external force is applied by a banging machine, a tapping machine, or the like instead of the user U1, an acceleration sensor may be provided so as to follow these motion sources.

Then, the second computing unit 42 measures the acceleration of the leg of the user U2 as a physical quantity related to the second external force, the acceleration of the first external force, the sound pressure and/or frequency of the first sound, and the second The sound pressure and/or frequency of the second sound assumed to propagate within the third room R may be calculated based on the acceleration of the external force. As an example of a specific calculation method, the sound pressure per unit acceleration calculated from the amount of change in the acceleration of the first external force per unit time and the amount of change in the sound pressure and/or frequency of the first sound. Alternatively, the sound pressure and/or frequency of the second sound that is assumed to occur in response to the acceleration of the second external force may be calculated based on the frequency, and the first sound pressure close to the acceleration of the second external force may be calculated. The acceleration of the external force may be selected and the sound pressure and/or frequency of the second sound may be calculated by adjusting the sound pressure and/or frequency of the first sound associated with the selected acceleration of the first external force. good.

According to this method, a wearable acceleration sensor detachable on a human leg is adopted as the measurement unit 1, and the correspondence between the acceleration of the leg related to the first external force and the sound pressure and/or frequency of the first sound is determined. Analyze the relationship and create a database of the analysis results, and based on the analysis results, the sound pressure of the pseudo second sound that is assumed to change according to the acceleration of the human leg related to the new second external force and / Or an effect that the frequency can be easily calculated can be expected.

Next, with regard to another function provided in the calculation unit 4 shown in FIG. 2 and the true sound sensory method executed by this function, only the portions different from the above example will be described, and the portions not described are equivalent methods and systems. It shall have a configuration, a function, and an operational effect.

As shown in FIGS. 2 and 4A, the first computing unit 41 associates and stores the physical quantity related to the first external force received from the first measuring unit 11 and the action source information of the first external force. Stored in unit 5 (step S310). The action source information of the first external force may be stored in the storage unit 5 in advance. The first computing unit 41 associates the physical quantity related to the first external force, the action source information of the first external force with the physical quantity related to the first sound, and stores them in the storage unit 5 (step S320). The first calculation unit 41 generates a prediction model by performing machine learning using the physical quantity related to the first external force and the action source information of the first external force stored in the storage unit 5 as teacher data (step 330).

The prediction model may be generated by a means having processing functions equivalent to those of the calculation unit 4, or may be generated using a known machine learning algorithm such as deep learning using a neural network. The teacher data is structural information of the first room P, the second room Q and the third room R shown in FIG. Information identifying flooring, etc., numerical information, such as length, thickness, area, and volume may be included, and the prediction model may be generated by machine learning these, and in addition to the floor of each room These may be predicted and determined from the physical quantity related to the second external force. The prediction model may be stored in the storage unit 5, or may be stored in another general-purpose computer provided via a network.

As shown in FIGS. 2 and 4(b), the calculation unit 4 uses the predictive model to determine action source information of the second external force from physical quantities relating to the second external force applied to the floor (step 410). . The calculation unit 4 calculates a second sound that is assumed to propagate in the first room by the second external force based on the stored physical quantity related to the first sound and the determined action source information of the second external force. A physical quantity is calculated (step 420). As an example of a specific calculation method, the calculation unit 4 calculates the change per unit time of the physical quantity related to the first sound associated with the first external force action source information common to the second external force action source information. A physical quantity relating to the second sound may be calculated based on the physical quantity calculated from the quantity, and a physical quantity relating to the first external force associated with the action source information of the first external force that is the same as the action source information of the second external force select a physical quantity related to the first external force that is close to the physical quantity related to the second external force, adjust the physical quantity related to the first sound related to the selected physical quantity related to the first external force, and obtain a physical quantity related to the second sound may be calculated.

According to this method, by determining the action source information of the second external force by the predictive model, an effect of facilitating calculation of the physical quantity related to the second sound can be expected. That is, the analysis results obtained by analyzing the correspondence relationship between the physical quantity of the first external force and the physical quantity related to the first sound are classified for each action source information of the first external force and compiled into a database, and this analysis result and the judgment result by the prediction model are combined. Based on this, it is possible to expect an effect of facilitating calculation of the physical quantity related to the pseudo second sound, which is assumed to change according to the new physical quantity related to the second external force.

It should be noted that the present embodiment is not limited to the contents described above, and includes all methods, system configurations, software, hardware, functions, and interrelationships thereof as long as equivalent effects can be obtained.

P first room Q second room R third room 1 measurement unit 11 first measurement unit 12 second measurement unit 2 sound collection unit 3 recording unit 4 calculation unit 41 first measurement unit 42 second measurement unit Measurement unit 5 Storage unit 6 Sound source unit

Claims (7)

A computer-implemented sound experience method comprising:
Measure the physical quantity related to the first external force applied to the floor of the second room, which is the upper floor of the first room,
Collecting and recording a first sound propagated in the first room by the first external force;
calculating a physical quantity related to the first sound;
storing a physical quantity related to the first external force and a physical quantity related to the first sound in association with each other;
measuring a physical quantity related to the second external force applied to the floor of the third room;
calculating a physical quantity related to the second sound assumed to propagate in the third room based on the stored physical quantity related to the first external force, the physical quantity related to the first sound, and the physical quantity related to the second external force;
A sound experience method including transmitting a second sound into a third room based on physical quantities related to the second sound. A computer-implemented sound experience method comprising:
Measure the physical quantity related to the first external force applied to the floor of the second room, which is the upper floor of the first room,
Collecting and recording a first sound propagated in the first room by the first external force;
calculating a physical quantity related to the first sound;
storing in association with a physical quantity related to the first external force and source information of the first external force and a physical quantity related to the first sound;
measuring a physical quantity related to the second external force applied to the floor of the third room;
Using a prediction model that is machine-learned using the stored physical quantity related to the first external force and the action source of the first external force as teacher data, the source of the second external force predicted from the physical quantity related to the second external force is calculated. judge,
calculating a physical quantity related to the second sound assumed to propagate in the third room based on the stored physical quantity related to the first sound and the determined action source information of the second external force;
A sound experience method including transmitting a second sound into a third room based on physical quantities related to the second sound. The physical quantity related to the first external force and the physical quantity related to the second external force are pressure,
3. The sound sensation method according to claim 1 or 2, comprising measuring the pressure with pressure sensors provided on the floor of the second room and the floor of the third room, respectively. The physical quantity related to the first external force is the acceleration of the source of the first external force,
The physical quantity related to the second external force is the acceleration of the source of the second external force,
3. The sound sensation method according to claim 1 or 2, comprising: measuring the acceleration with an acceleration sensor provided to follow respective motions of the action source of the first external force and the action source of the second external force. 5. The apparatus according to any one of claims 1 to 4, wherein the first room, the second room, and the third room are located in different buildings and have different structures. Sound sensation method A computer-implemented audio system comprising:
a first room, a second room above the first room, a third room,
a measuring unit that measures a physical quantity related to an external force generated in a predetermined room;
a calculation unit that calculates a physical quantity related to sound caused by an external force;
a storage unit that stores a physical quantity related to external force and a physical quantity related to sound;
a sound collecting unit that collects sound propagating in a predetermined room;
a recording unit that records the sound collected by the sound collecting unit;
and a sound source unit that emits sound in a predetermined room,
The measuring part
a first measurement unit that measures a physical quantity related to a first external force applied to the floor of the second room;
a second measuring unit that measures a physical quantity related to a second external force applied to the floor of the third room;
The sound collecting unit collects a first sound propagating in the first room due to a first external force,
The calculation part is
a first calculator that calculates a physical quantity related to the first sound caused by the first external force;
a second calculation unit that calculates a physical quantity related to a second sound caused by a second external force;
the storage unit associates and stores a physical quantity related to the first external force and a physical quantity related to the first sound;
The second computing unit is based on the physical quantity related to the first external force and the physical quantity related to the first sound stored in the storage unit, and the physical quantity related to the second external force. Calculate the physical quantity related to the sound of 2,
A sound sensation system, wherein the sound source unit transmits the second sound into the third room based on the physical quantity related to the second sound. A computer-implemented audio system comprising:
a first room, a second room above the first room, a third room,
a measuring unit that measures a physical quantity related to an external force generated in a predetermined room;
a calculation unit that calculates a physical quantity related to sound caused by an external force;
a storage unit that stores a physical quantity related to external force and a physical quantity related to sound;
a sound collecting unit that collects sound propagating in a predetermined room;
a recording unit that records the sound collected by the sound collecting unit;
and a sound source unit that emits sound in a predetermined room,
The measuring part
a first measurement unit that measures a physical quantity related to a first external force applied to the floor of the second room;
a second measuring unit that measures a physical quantity related to a second external force applied to the floor of the third room;
The sound collecting unit collects a first sound propagating in the first room due to a first external force,
The calculation part is
a first calculator that calculates a physical quantity related to the first sound caused by the first external force;
a second calculation unit that calculates a physical quantity related to a second sound caused by a second external force;
The storage unit associates and stores the physical quantity related to the first external force, the action source information of the first external force, and the physical quantity related to the first sound,
The second computing unit uses a prediction model that is machine-learned using the physical quantity related to the first external force and the action source information of the first external force stored in the storage unit as teacher data, and uses the physical quantity related to the second external force to Determine the predicted action source information of the second external force, and propagate in the third room based on the physical quantity related to the first external force stored in the storage unit and the determined action source information of the second external force Then, calculate the physical quantity related to the second sound assumed,
A sound sensation system, wherein the sound source unit transmits the second sound into the third room based on the physical quantity related to the second sound.

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