WO2021192517A1 - Système de vibration, procédé de vibration, programme de vibration et support de stockage - Google Patents

Système de vibration, procédé de vibration, programme de vibration et support de stockage Download PDF

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Publication number
WO2021192517A1
WO2021192517A1 PCT/JP2021/000983 JP2021000983W WO2021192517A1 WO 2021192517 A1 WO2021192517 A1 WO 2021192517A1 JP 2021000983 W JP2021000983 W JP 2021000983W WO 2021192517 A1 WO2021192517 A1 WO 2021192517A1
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Prior art keywords
sound
sound collection
collection result
vibration
parameter
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PCT/JP2021/000983
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English (en)
Japanese (ja)
Inventor
洋人 河内
宣昭 田上
久司 大和田
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パイオニア株式会社
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Publication of WO2021192517A1 publication Critical patent/WO2021192517A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Definitions

  • the present invention relates to a vibration system, a vibration method, a vibration program, and a storage medium that radiate sound by transmitting vibration to an object to be attached by a vibrator.
  • the desired sound can be obtained, for example, the sound quality of the radiated sound is biased to the treble side or the bass side, or the volume is generally insufficient. It may not be. Therefore, in order to deal with such a case, it is conceivable to collect the sound actually radiated by the vibrator and adjust the sound radiated by the vibrator based on the sound collection result.
  • the subject of the present invention is to provide a vibration system, a vibration method, a vibration program, and a storage medium capable of adjusting the sound while protecting privacy.
  • the vibration system of the present invention has a vibrator that emits sound by transmitting vibration based on a sound signal to an object to be attached, and a vibrator around the vibrator.
  • the sound collection result acquisition unit that acquires the sound collection result and the adjustment parameters for adjusting the sound radiated by the transducer are the sound signal and the instantaneous sound collection result over a short period of time that cannot be discriminated as sound.
  • the vibration method of the present invention is a collection of sounds around a vibrator that emits sound by transmitting vibration based on a sound signal to an object to be attached.
  • the sound collection result acquisition process for acquiring the sound result and the adjustment parameter for adjusting the sound radiated by the vibrator are determined by the sound signal and the instantaneous sound collection result over a short period of time that cannot be discriminated as the sound. It is characterized by including a parameter acquisition step of acquiring a plurality of sound collection results collected at discrete times and an adjustment step of adjusting the sound emitted by the vibrator using the adjustment parameters. do.
  • the vibration program of the present invention is characterized in that the above-mentioned vibration method is executed by a computer.
  • the storage medium of the present invention is characterized in that the above-mentioned vibration program is stored.
  • FIG. 1 is a schematic view showing a first application example to which a vibration system for obtaining sound using a vibrator is applied. It is external perspective view of the vibrator which is schematically shown in FIG. It is a schematic diagram which shows the 2nd application example of a vibration system. It is a schematic diagram which shows the 3rd application example of a vibration system. It is a schematic diagram which shows the 4th application example of a vibration system. It is a schematic block diagram which shows the functional block in the vibration system shown in FIGS. 1 to 5. It is a flowchart which shows the processing flow of the vibration method executed by the vibration system shown in FIG. It is a figure which shows the modification of the embodiment shown in FIGS. 1 to 7 by the function block diagram of the modification corresponding to the function block diagram of FIG.
  • the vibration system includes a vibrator, a sound collection result acquisition unit, a parameter acquisition unit, and an adjustment unit.
  • the vibrator radiates sound by transmitting vibration based on a sound signal to the object to be attached.
  • the sound collection result acquisition unit acquires the sound collection result of the sound around the vibrator.
  • the parameter acquisition unit collects a plurality of adjustment parameters for adjusting the sound emitted by the vibrator, such as a sound signal and a plurality of instantaneous sound collection results over a short period of time that cannot be discriminated as voice, with a predetermined discrete time. Obtained based on the sound collection result group.
  • the adjusting unit adjusts the sound radiated by the vibrator using the adjustment parameters.
  • the sound collection result group used for acquiring the adjustment parameter is a collection of a plurality of instantaneous sound collection results over a short period of time, which cannot be discriminated as voice, at a predetermined discrete time. .. Then, it is extremely difficult to grasp the conversation content of the user from such a sound collection result group. That is, according to the vibration system described above, the sound can be adjusted while protecting privacy.
  • the vibration system of the present embodiment may be a system in which the parameter acquisition unit acquires adjustment parameters by performing calculation processing based on the sound signal and the sound collection result group.
  • the entire system including the calculation of parameters can be integrated in the vicinity of the object to be attached, so that the system configuration can be simplified and the cost etc. can be reduced.
  • the calculation process of the adjustment parameter based on the sound signal and the sound collection result group may be executed in the server device connected to the predetermined communication network.
  • the parameter acquisition unit sends a sound signal and a sound collection result group to the server device via the communication network, and receives the calculation result of the server device via the communication network to acquire the adjustment parameter.
  • the parameter calculation is executed by the server device having a sufficient processing capacity, and the parameter acquisition unit only receives the calculation result. Therefore, it is possible to construct a system in which the processing load can be further suppressed. can.
  • the vibration system of the present embodiment further includes a rearrangement processing unit that randomly rearranges the arrangement order of a plurality of instantaneous sound collection results arranged in the sound collection order to generate a sound collection result group. Then, the parameter acquisition unit acquires the adjustment parameter based on the sound signal and the sound collection result group generated by the rearrangement processing unit.
  • the order of a plurality of instantaneous sound collection results is irregularly rearranged to generate a sound collection result group, and it is difficult to grasp the conversation content of the user from the sound collection result group. Is further increased, so privacy can be further protected.
  • the vibration system of the present embodiment further includes a sound collection result storage unit that stores the sound collection result group and can read the stored contents by the processing unit in the subsequent stage.
  • the parameter acquisition unit acquires the average value of the parameters individually calculated for each of the plurality of instantaneous sound collection results in the sound collection result group as the adjustment parameter.
  • the vibration method includes a sound collection result acquisition step, a parameter acquisition step, and an adjustment step.
  • the sound collection result acquisition step is a step of acquiring the sound collection result around the vibrator that radiates the sound by transmitting the vibration based on the sound signal to the object to be attached.
  • the parameter acquisition process a plurality of adjustment parameters for adjusting the sound radiated by the vibrator are collected at a predetermined discrete time, with sound signals and instantaneous sound collection results over a short period of time that cannot be discriminated as voice. This is a process of acquiring based on the sound collection result group.
  • the adjustment step is a step of adjusting the sound radiated by the vibrator using the adjustment parameters.
  • the adjustment parameters are acquired based on the sound collection result group, which is extremely difficult to grasp the conversation content of the user, so that the sound can be adjusted while protecting privacy. can.
  • the vibration program according to the embodiment of the present invention is a program in which the above-mentioned vibration method is executed by a computer.
  • the sound can be adjusted while protecting privacy by executing the above vibration method by a computer.
  • the storage medium according to the embodiment of the present invention is a medium that stores the above-mentioned vibration program.
  • the sound can be adjusted while protecting privacy by reading the above vibration program and executing the above vibration method by a computer based on the vibration program.
  • FIG. 1 is a schematic view showing a first application example to which a vibration system for obtaining sound using a vibrator is applied
  • FIG. 2 is an external perspective view of the vibrator schematically shown in FIG. be.
  • the vibration system 1 of this embodiment is applied to the guide sign A1 of the bus stop.
  • the vibration system 1 is a system that provides voice information regarding bus operation, various advertisements, and the like, and includes an oscillator 11 and a drive unit 12.
  • the vibration system 1 can also provide interactive information that answers the questions of the users of the bus stop by voice.
  • the vibrator 11 radiates sound by transmitting vibration to the object to be attached, and includes a vibration actuator 111, a signal wire 112, and an attachment portion 113.
  • the vibration actuator 111 is a portion where a sound signal as an electric signal representing sound is supplied via a signal wire 112 and vibrates by itself in response to the sound signal.
  • the signal wire 112 is an input line for inputting a sound signal from the outside to the vibration actuator 111.
  • the sticking portion 113 is a plate-shaped portion formed integrally with the vibrating actuator 111 and is stuck to the sticking object.
  • the drive unit 12 is wiredly connected to the vibrator 11 via a signal wire 112, and a built-in microcomputer executes a sound signal generation process or the like according to the provided information. Then, the drive unit 12 supplies the generated sound signal to the vibrator 11 to drive the vibrator 11 and radiate the sound to provide information by voice.
  • two microphones M1 are connected by wire to the drive unit 12 in order to contribute to the adjustment for the sound obtained by the vibrator 11. That is, in the vibration system 1 of the present embodiment, the sound actually radiated by the vibrator 11 is collected by the microphone M1, and in the drive unit 12, the sound signal supplied to the vibrator 11 is collected by the microphone M1. By adjusting based on the sound result, the sound radiated by the vibrator 11 is adjusted.
  • the microphone M1 is also used for interactive information provision.
  • voice recognition processing is performed on the user's voice collected by the microphone M1, the question from the user is recognized, and a sound signal representing the answer voice to the question is generated. By driving the vibrator 11 based on this sound signal, a voice answer to the user's question is made.
  • the vibrator 11 is attached to the center of the back surface of the circular flat plate-shaped stop name display plate A11 on the guide sign A1, and the two microphones M1 are attached to the route map / timetable display plate A12. Is fixed, and the drive unit 12 is fixed to the base A13.
  • the vibration is transmitted to the stop name display plate A11, which is the object to which the vibrator 11 is attached, and the sound is radiated with the stop name display plate A11 as the main sounding unit.
  • FIG. 3 is a schematic diagram showing a second application example of the vibration system
  • FIG. 4 is a schematic diagram showing a third application example of the vibration system
  • FIG. 5 is a schematic diagram showing a fourth application example of the vibration system. It is a figure.
  • the second application example of FIG. 3 is an example in which the vibration system 1 is applied to the guide sign A2 of a park or the like.
  • the vibrator 11 is attached to the center of the back surface of the rectangular flat plate-shaped guide display plate A21 for displaying a map or the like.
  • one microphone M1 is fixed to each of the two columns A22 supporting the guide display board A21, and the drive unit 12 is fixed to the root of one column A22.
  • the third application example of FIG. 4 is an example in which the vibration system 1 is applied to the A-type stand signboard A3 for store guidance of a coffee shop or the like.
  • the vibrator 11 is attached to the center of the back surface of one of the two rectangular flat plate-shaped guide display plates A31 that display various store information.
  • one microphone M1 is fixed at a position below the vibrator 11 on the back surface of the same guide display plate A21, and at a position below the back surface of the guide display plate A31 on the side opposite to the mounting side of the vibrator 11 and the microphone M1.
  • the drive unit 12 is fixed.
  • the fourth application example of FIG. 5 is an example in which the vibration system 1 is applied to a guide signboard A4 that imitates the shape of an animal installed in a zoo or the like.
  • the vibrator 11, the microphone M1, and the drive unit 12 are all attached to the back surface of one guide signboard A4.
  • the vibrator 11 is attached to a position above the back surface of the guide signboard A4, and one microphone M1 is fixed to the position below the guide sign A4.
  • the drive unit 12 is fixed at the lowermost position on the back surface of the guide signboard A4.
  • the plate-shaped portion to which the vibrator 11 is attached is mainly pronounced. Sound is radiated as a part. As a result, various guidance information is provided by voice, and the user's question is answered by voice.
  • Such a vibration system 1 has the following functional blocks.
  • FIG. 6 is a schematic block diagram showing functional blocks in the vibration system shown in FIGS. 1 to 5.
  • the vibration system 1 has the vibrator 11, the sound collection result acquisition unit 121, the rearrangement processing unit 122, the sound collection result storage unit 123, the parameter acquisition unit 124, the parameter storage unit 125, the sound signal generation unit 126, and the sound signal generation unit 126 as functional blocks.
  • the adjusting unit 127 is provided. Since the vibrator 11 as a functional block referred to here is the same as the vibrator 11 as hardware shown in FIGS. 1 to 5, the same reference numerals are given without particularly distinguishing between the two. Will be explained.
  • the sound collection result acquisition unit 121, the rearrangement processing unit 122, the parameter acquisition unit 124, the sound signal generation unit 126, and the adjustment unit 127 operate the microcomputer and the like in the drive unit 12. Constructed by.
  • the sound collection result storage unit 123 and the parameter storage unit 125 are constructed by one storage area in the memory mounted on the drive unit 12.
  • the vibrator 11 radiates sound by transmitting vibration based on a sound signal to the object to be attached as described above.
  • the sound collection result acquisition unit 121 acquires the sound collection result when the sound around the vibrator 11 is collected by the microphone M1 from the microphone M1. The acquisition at this time is performed from a predetermined time before the vibrator 11 emits a sound such as a guidance voice based on the sound signal.
  • the sound collection result when the sound is radiated is used for acquiring both the sound quality parameter and the volume parameter described later, and the sound collection result before the sound is radiated is used for the acquisition of the volume parameter.
  • the rearrangement processing unit 122 extracts a plurality of instantaneous sound collection results over a short period of time, which cannot be discriminated as voice, from the sound collection results of the sound collection result acquisition unit 121 at a predetermined discrete time, and the remaining sound collection results. Discard. Specifically, sampling of an extremely short-time instantaneous sound collection result such as 0.1 second is executed at 0.1 second intervals for 100 seconds, leaving one instantaneous sound collection result per second and discarding the others. As a result, processing such as extracting 100 instantaneous sound collection results with a discrete time of 0.9 seconds is performed.
  • the rearrangement processing unit 122 was supplied to the vibrator 11 at the time of sound collection, which was the source of extraction of the sound collection result group, and radiated a sound such as a guidance voice in preparation for the calculation of the adjustment parameter later.
  • the same extraction is performed for the sound signal. That is, in a state where the sound signal is synchronized with the sound collection result of the extraction source, a plurality of short-time instantaneous sound signals, which are the same as the instantaneous sound collection result, are extracted from this sound signal with the same discrete time as the instantaneous sound collection result. do.
  • the instantaneous sound collection result and the instantaneous sound signal extracted in this way are both arranged in the order of sound collection, and the rearrangement processing unit 122 sets the order of the instantaneous sound collection result and the instantaneous sound signal. Sort irregularly while maintaining synchronization with.
  • a sound collection result group which is a set of instantaneous sound collection results before sound emission
  • a sound signal group which is a set of instantaneous sound signals during sound emission
  • the sound collection result storage unit 123 stores the sound collection result group and the sound signal group generated by the rearrangement processing unit 122 in a state of being synchronized with each other, and the stored contents are stored by the parameter acquisition unit 124 which is the subsequent processing unit. It is a part that can be read.
  • the parameter acquisition unit 124 bases the adjustment parameters for adjusting the sound radiated by the vibrator 11 on the sound collection result group and the sound signal group generated by the rearrangement processing unit 122 and stored in the sound collection result storage unit 123. To get.
  • the drive unit 12 is connected to the server device SV1 via a predetermined communication network N1. Then, in this server device SV1, the calculation process of the adjustment parameter based on the sound signal (here, the above-mentioned sound signal group) and the sound collection result group is executed.
  • the parameter acquisition unit 124 sends the sound collection result group and the sound signal group to the server device SV1 via the communication network N1 while maintaining mutual synchronization, and sends the calculation result of the server device SV1 to the server device SV1 via the communication network N1. Get the adjustment parameters by receiving.
  • the parameter acquisition unit 124 acquires a sound quality parameter for adjusting the sound quality and a volume parameter for adjusting the volume. That is, in the server device SV1, these parameters are calculated based on the sound collection result group and the sound signal group.
  • the sound quality parameter is calculated using the sound collection result group and the sound signal group during sound radiation. Then, in the calculation of the sound quality parameter, first, the following gain set is set for each combination of the instantaneous sound collection result forming the sound collection result group and the instantaneous sound signal forming the sound signal group that are synchronized with each other. Is required. That is, after synchronizing the instantaneous sound collection result of each set and the instantaneous sound signal with each other, the difference is obtained by comparing each of the plurality of frequency bands, and the gain for reducing the difference is calculated. In this way, a plurality of gain sets are required for each set of the instantaneous sound collection result and the instantaneous sound signal.
  • the average value of the corresponding frequency bands is calculated between a plurality of sets of gains. For example, when 100 sets of gains are obtained, the average value of 100 gains is obtained for each frequency band. The set of the average values of the gains obtained for each frequency band in this way becomes the sound quality parameter.
  • the volume parameter For the volume parameter, the sound collection result group and the sound signal group during sound emission, and the sound collection result group before sound emission corresponding to the background sound when the vibrator 11 does not emit sound are used. Then, in the calculation of the volume parameter, first, the noise level at the time of sound emission is calculated individually for each of the instantaneous sound collection results, and the optimum volume corresponding to each noise level is calculated. This noise level and volume are based on the instantaneous sound collection result that forms the sound collection result group before sound emission, the instantaneous sound collection result that forms the sound collection result group during sound emission, and the instantaneous sound signal that forms the sound signal group. Calculated. Then, the average value of the volumes calculated in the same number as the instantaneous sound collection results forming the sound collection result group at the time of sound emission is calculated as the volume parameter.
  • the parameter acquisition unit 124 receives the sound quality parameter and the volume parameter calculated in this way in the server device SV1 from the server device SV1.
  • the parameter storage unit 125 stores the sound quality parameter and the volume parameter acquired by the parameter acquisition unit 124.
  • the sound signal generation unit 126 generates sound signals representing various guidance voices. Further, in the present embodiment, in order to provide information in an interactive format, the sound signal generation unit 126 collects sound by the microphone M1 and obtains a voice for the user's question regarding the sound collection result acquisition unit. The user's question is grasped by the recognition process. Then, the sound signal generation unit 126 generates a sound signal representing the answer voice to the question.
  • the adjustment unit 127 adjusts the sound signal generated by the sound signal generation unit 126 by using the sound quality parameter and the volume parameter acquired by the parameter acquisition unit 124 and stored in the parameter storage unit 125, and the adjusted sound signal. Is supplied to the vibrator 11. By adjusting the sound signal and supplying the adjusted sound signal, the adjusting unit 127 adjusts the sound radiated by the vibrator 11.
  • FIG. 7 is a flowchart showing the processing flow of the vibration method executed by the vibration system shown in FIG.
  • the flowchart shown in FIG. 7 includes a parameter acquisition flow for acquiring and storing / updating adjustment parameters, a voice radiation flow for radiating a guidance voice at a predetermined timing, and a voice for answering a user's question. It consists of two flows. These two flows start when the drive unit 12 is powered on and are executed in parallel with each other.
  • the rearrangement processing step of generating the sound signal group is executed by the rearrangement processing unit 122 (step S12).
  • the sound collection result storage unit 123 executes a sound collection result storage step in which the generated sound collection result group is stored in a state of maintaining synchronization with the sound signal group (step S12). Then, the stored sound collection result group and sound signal group are sent to the server device SV1, and the parameter acquisition step of receiving the sound quality parameter and the volume parameter calculated based on these is executed by the parameter acquisition unit 124 (step S14). ). After that, the parameter storage unit 125 executes an update step of updating the stored contents with the acquired sound quality parameter and volume parameter (step S15).
  • the default volume parameter and sound quality parameter are stored in the parameter storage unit 125 at the initial stage when the vibration system 1 is installed at the installation site, and the update step (step S15) after the installation causes the parameter storage unit 125 to store the default volume parameter and sound quality parameter. Each parameter will be updated. After the end of this update step (step S15), the process returns to the sound collection result acquisition step (step S11), and the subsequent processes are repeated.
  • the sound signal generation unit 126 executes a sound signal generation step of generating a sound signal representing the sound radiated by the vibrator 11 (step S16).
  • this sound signal generation step step S16
  • sound signals representing various guidance voices are generated, a user's question is grasped by voice recognition processing, and a sound signal representing a response voice to the question is generated.
  • the adjusting unit 127 executes the adjusting step (step S17).
  • the sound produced by the vibrator 11 is adjusted using the volume parameter and the sound quality parameter stored in the parameter storage unit 125 at that time. That is, the sound signal generated in the sound signal generation step (step S16) is adjusted by various parameters, and the adjusted sound signal is supplied to the vibrator 11, so that the sound to be radiated is adjusted. If the update step (step S15) has not been executed for the stored contents of the parameter storage unit 125 at the time of this adjustment step (step S17), the default parameters are used. On the other hand, if the update step (step S15) has been executed, the updated parameters are used.
  • step S15 when the update step (step S15) is executed during the execution of the adjustment step (step S17), that is, while the sound is radiated by the vibrator 11, the sound radiated after that is the latest after the update.
  • the parameters will be used and adjusted.
  • step S17 including the sound radiation by the vibrator 11 is completed, the process returns to the sound signal generation step (step S16) to prepare for the next sound radiation.
  • a vibration program for executing the vibration method shown in the flowchart of FIG. 7 by a computer is stored in a storage medium mounted on the drive unit 12.
  • the storage medium for storing the vibration program is not limited to the storage medium mounted on the drive unit 12, and may be a storage medium mounted on a PC or the like connected to the drive unit 12, or may be known. It may be a carrying storage medium or the like.
  • the sound collection result group used for acquiring the adjustment parameters is an instantaneous sound collection over a short period of time that cannot be discriminated as voice. A plurality of results are collected at a predetermined discrete time. Then, it is extremely difficult to grasp the conversation content of the user from such a sound collection result group. That is, according to the vibration system 1 described above, the sound can be adjusted while protecting privacy.
  • the parameter acquisition unit 124 sends a sound signal and a sound collection result group to the server device SV1 via the communication network N1, and calculates the calculation result in the server device SV1 via the communication network N1. Get the adjustment parameters by receiving.
  • the parameter calculation is executed by the server device SV1 having a sufficient processing capacity, and the parameter acquisition unit 124 only receives the calculation result, so that a system in which the processing load can be further suppressed is constructed. be able to.
  • the vibration system 1 of the present embodiment further includes a rearrangement processing unit 122 that randomly rearranges the arrangement order of a plurality of instantaneous sound collection results arranged in the sound collection order to generate a sound collection result group.
  • a rearrangement processing unit 122 that randomly rearranges the arrangement order of a plurality of instantaneous sound collection results arranged in the sound collection order to generate a sound collection result group.
  • the vibration system 1 of the present embodiment further includes a sound collection result storage unit 123 that stores the sound collection result group and can read the stored contents by the processing unit in the subsequent stage.
  • a sound collection result storage unit 123 that stores the sound collection result group and can read the stored contents by the processing unit in the subsequent stage.
  • the parameter acquisition unit 124 acquires the average value of the parameters individually calculated for each of the plurality of instantaneous sound collection results in the sound collection result group as the adjustment parameter. According to this configuration, even if the individually calculated parameters vary slightly, it is possible to obtain highly accurate adjustment parameters by obtaining the average value.
  • FIGS. 1 to 7 a modified example of the embodiment shown in FIGS. 1 to 7 will be described with reference to the functional block diagram of the modified example corresponding to the functional block diagram of FIG.
  • FIG. 8 is a diagram showing a modified example of the embodiment shown in FIGS. 1 to 7 in a functional block diagram of the modified example corresponding to the functional block diagram of FIG.
  • components equivalent to the components shown in FIG. 6 are designated by the same reference numerals as those in FIG. 6, and duplicate description of these equivalent components will be omitted below.
  • the parameter acquisition unit 224 in the drive unit 22 is different from the above-described embodiment.
  • the drive unit 22 is not connected to the server device SV1, and the parameter acquisition unit 224 acquires the sound quality parameter and the volume parameter by performing the calculation process based on the sound signal and the sound collection result by itself. It has become.
  • the parameter acquisition unit 224 acquires the sound quality parameter and the volume parameter based on the sound collection result group which is a set of the instantaneous sound collection results and the sound signal group which is a set of the instantaneous sound signals.
  • the points are the same as those in the above-described embodiment.
  • the sound quality parameter and the volume parameter are acquired based on the sound collection result group, which is extremely difficult to grasp the conversation content of the user, so the sound is adjusted while protecting privacy. It goes without saying that you can do it.
  • the sound quality parameter and the volume parameter are acquired by the parameter acquisition unit 224 performing the calculation process based on the sound signal group and the sound collection result group by itself.
  • the entire system including the calculation of parameters can be integrated in the vicinity of the object to be attached, so that the system configuration can be simplified and the cost or the like can be reduced.
  • the present invention is not limited to the examples and modifications described above, but includes other configurations that can achieve the object of the present invention, and the following modifications are also included in the present invention. ..
  • the vibration system 1 in which the sound collection result by two or one microphone M1 is used not only for acquiring sound quality parameters and volume parameters but also for providing information in an interactive format. , 2 are illustrated.
  • the vibration system is not limited to these, and may be configured not to provide information in an interactive manner.
  • the number of connected microphones M1 is not limited to two or one, and an arbitrary number of microphones M1 may be connected according to the installation situation of the vibration system.
  • vibration systems 1 and 2 provided with one vibrator 11 are exemplified.
  • the vibration system is not limited to these, and an arbitrary number of vibrators may be provided according to the installation situation of the vibration system.
  • vibration systems 1 and 2 that acquire sound quality parameters and volume parameters as adjustment parameters are exemplified.
  • the vibration system is not limited to these, and only one of them may be acquired.
  • the parameter acquisition unit 124 that acquires the calculation results of the sound quality parameter and the volume parameter in the server device SV1 is exemplified.
  • the parameter acquisition unit 224 that calculates the sound quality parameter and the volume parameter by itself is exemplified.
  • the parameter acquisition unit is not limited to these, and does not ask a specific acquisition mode as long as it acquires various parameters based on the sound signal and the sound collection result.
  • a highly versatile system can be constructed by configuring the server device SV1 to acquire sound quality parameters and volume parameters. Further, as described above, the system configuration can be simplified and the cost or the like can be reduced by adopting the configuration in which the sound quality parameter and the volume parameter are calculated by oneself.
  • the vibration systems 1 and 2 provided with the rearrangement processing unit 122 that randomly rearranges the arrangement order of the instantaneous sound collection results to generate the sound collection result group are exemplified.
  • the vibration system is not limited to this, and the parameters may be acquired by using the instantaneous sound collection results arranged in the sound collection order as they are without performing such rearrangement.
  • the sound signal may be used as it is for acquiring the adjustment parameter while maintaining the synchronization with the instantaneous sound collection result without extracting the instantaneous sound signal.
  • privacy can be further protected by rearranging the results of instantaneous sound collection.
  • the vibration systems 1 and 2 provided with the sound collection result storage unit 123 for storing the sound collection result group and reading the stored contents by the processing unit in the subsequent stage are exemplified.
  • the vibration system is not limited to this, and the sound collection result group may not be stored and may be discarded immediately after the parameter is acquired.
  • the sound collection result group may not be stored and may be discarded immediately after the parameter is acquired.
  • by storing the sound collection result group as the source of parameter acquisition for example, it can contribute to maintenance at a later date.
  • the vibration systems 1 and 2 in which the sound quality parameter and the volume parameter are acquired as the average value of the parameters calculated individually for each of the plurality of instantaneous sound collection results in the sound collection result group are exemplified.
  • the vibration system is not limited to this, and for example, representative values such as the maximum value and the minimum value among the individually calculated parameters may be acquired as the sound quality parameter and the volume parameter.
  • a highly accurate parameter can be obtained by obtaining the average value.

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  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

La présente invention ajuste le son tout en protégeant la confidentialité. Selon l'invention, un système de vibration (1) est caractérisé par le fait qu'il comprend : un oscillateur (11) qui transmet, à un objet à coller, des vibrations basées sur des signaux sonores, ce qui provoque le rayonnement d'un son; une unité d'acquisition de résultat de collecte de sons (121) qui acquiert un résultat de collecte de sons à proximité de l'oscillateur (11); une unité d'acquisition de paramètre (124) qui acquiert un paramètre de réglage pour régler le son rayonné par l'oscillateur (11), en fonction du signal sonore et d'un groupe de résultats de collecte de sons dans lequel une pluralité de résultats de collecte de sons instantanés, pendant de courtes durées indiscernables en tant que son, sont recueillis à un intervalle de temps discret prédéterminé; et une unité de réglage (127) qui utilise le paramètre de réglage pour régler le son rayonné par l'oscillateur (11).
PCT/JP2021/000983 2020-03-26 2021-01-14 Système de vibration, procédé de vibration, programme de vibration et support de stockage WO2021192517A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11331969A (ja) * 1998-05-14 1999-11-30 Oosenteikku:Kk 表示装置用パネル型スピーカ
JP2013009236A (ja) * 2011-06-27 2013-01-10 Kddi Corp 携帯端末装置、携帯端末装置の音声調整方法、携帯端末装置の音声調整プログラム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11331969A (ja) * 1998-05-14 1999-11-30 Oosenteikku:Kk 表示装置用パネル型スピーカ
JP2013009236A (ja) * 2011-06-27 2013-01-10 Kddi Corp 携帯端末装置、携帯端末装置の音声調整方法、携帯端末装置の音声調整プログラム

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