WO2021192516A1 - 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
WO2021192516A1
WO2021192516A1 PCT/JP2021/000982 JP2021000982W WO2021192516A1 WO 2021192516 A1 WO2021192516 A1 WO 2021192516A1 JP 2021000982 W JP2021000982 W JP 2021000982W WO 2021192516 A1 WO2021192516 A1 WO 2021192516A1
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WIPO (PCT)
Prior art keywords
sound
collection result
parameter
vibrator
sound collection
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PCT/JP2021/000982
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English (en)
Japanese (ja)
Inventor
宣昭 田上
洋人 河内
久司 大和田
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パイオニア株式会社
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Publication of WO2021192516A1 publication Critical patent/WO2021192516A1/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 parameter for adjusting the sound radiated by the vibrator are added to the sound signal and the sound collection result acquired by the sound collection result acquisition unit.
  • the parameter acquisition unit acquires the adjustment parameter based on the sound signal and the sound collection result at the time of sound emission including the sound based on the sound signal when the volume condition of being equal to or lower than the predetermined level is satisfied. It is characterized by having a control unit for executing the above.
  • 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 step for acquiring the sound result and the adjustment parameters for adjusting the sound radiated by the vibrator are acquired based on the sound signal and the sound collection result acquired in the sound collection result acquisition step.
  • the parameter acquisition step, the adjustment step of adjusting the sound emitted by the vibrator using the adjustment parameter, and the volume of the background sound other than the sound based on the sound signal in the sound collection result are at a predetermined level over a predetermined time.
  • 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 It is a schematic diagram which shows the 1st application example to which the vibration system which obtains a sound by 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, an adjustment unit, and a control 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 acquires adjustment parameters for adjusting the sound radiated by the vibrator based on the sound signal and the sound collection result acquired by the sound collection result acquisition unit.
  • the adjusting unit adjusts the sound radiated by the vibrator using the adjustment parameters.
  • the control unit determines the sound signal and the sound collection result at the time of sound emission when the volume condition that the volume of the background sound other than the sound based on the sound signal becomes a predetermined level or less for a predetermined time is satisfied in the sound collection result. Based on this, the parameter acquisition unit is made to acquire the adjustment parameter.
  • the sound collection result at the time of sound emission is a sound collection result including a sound based on a sound signal.
  • the sound collection result at the time of sound emission used for acquiring the adjustment parameter is the sound collection result when the volume condition that the volume of the background sound becomes a predetermined level or less for a predetermined time is satisfied. It has become. When such a volume condition is satisfied, it is unlikely that a conversation or the like is taking place around the vibrator. That is, according to the above-mentioned vibration system, since the adjustment parameter is acquired based on the sound collection result at the time of sound emission in such a case, the sound can be adjusted while protecting the 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.
  • 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 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 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 sound collection result storage unit that stores the sound collection result acquired by the sound collection result acquisition unit. Then, the control unit stores only the sound collection result at the time of sound emission when the volume condition is satisfied in the sound collection result storage unit, and stores the sound signal and the sound collection result storage unit at the time of sound emission. The acquisition of adjustment parameters is to be executed based on the result.
  • the control unit when the volume condition is satisfied, causes the vibrator to emit a sound based on the sound signal for acquisition of the adjustment parameter, and at the same time, the sound signal and the sound collection result at the time of sound emission are obtained. Based on this, the acquisition of adjustment parameters is executed.
  • the vibrator when the volume condition is satisfied, the vibrator radiates sound for acquisition of the adjustment parameter and the sound collection result is obtained at the time of sound emission, so that the sound is clearly emitted suitable for the acquisition of the adjustment parameter. It is possible to acquire the sound collection result at the time of sound. Then, by acquiring the sound collection result at the time of sound emission, the accuracy of the acquired adjustment parameter can be improved.
  • the parameter acquisition unit acquires the sound quality parameter for adjusting the sound quality of the sound radiated by the vibrator as the adjustment parameter. Further, the parameter acquisition unit sets the volume parameter for adjusting the volume of the sound radiated by the vibrator into the sound signal, the sound collection result when the vibrator does not radiate the sound, and the sound collection result when the sound is emitted. Get based on. Then, the control unit acquires the sound quality parameter based on the sound signal when the volume condition is satisfied and the sound collection result at the time of sound emission, and the parameter acquisition unit acquires the volume parameter regardless of the volume condition. To execute.
  • the sound quality parameters used for sound quality adjustment are acquired when the volume conditions are met from the viewpoint of privacy protection. Will be done.
  • the acquisition of the volume parameter used for adjusting the volume which is likely to be performed frequently, is acquired regardless of the volume condition.
  • the control unit replaces the sound signal when the volume condition is satisfied and the sound collection result at the time of sound emission, and adjusts the parameter to the parameter acquisition unit based on the following source. It may be the one that executes the acquisition. That is, the control unit informs the parameter acquisition unit based on the sound signal and the sound collection result at the time of sound emission when at least one of the time condition and the volume condition that a predetermined time zone has arrived is satisfied. Makes the acquisition of adjustment parameters executed.
  • the vibration method includes a sound collection result acquisition step, a parameter acquisition step, an adjustment step, and a control 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 step is a step of acquiring adjustment parameters for adjusting the sound radiated by the vibrator based on the sound signal and the sound collection result acquired in the sound collection result acquisition step.
  • the adjustment step is a step of adjusting the sound radiated by the vibrator using the adjustment parameters.
  • the control step is based on the sound signal and the sound collection result at the time of sound emission when the volume condition that the volume of the background sound other than the sound based on the sound signal in the sound collection result becomes a predetermined level or less for a predetermined time is satisfied.
  • This is a step of executing the acquisition of the adjustment parameter by the parameter acquisition process.
  • the sound collection result at the time of sound emission is a sound collection result including a sound based on a sound signal.
  • the adjustment parameter is acquired based on the sound collection result at the time of sound emission when the volume condition is satisfied. , You can adjust the sound while protecting your privacy.
  • 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 a vibrator 11, a sound collection result acquisition unit 121, a control unit 122, a sound collection result storage unit 123, a parameter acquisition unit 124, a parameter storage unit 125, a sound signal generation unit 126, and an adjustment unit as functional blocks. 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. Further, among the functional blocks of the vibration system 1, the sound collection result acquisition unit 121, the control unit 122, the parameter acquisition unit 124, the sound signal generation unit 126, and the adjustment unit 127 are constructed by the operation of the microcomputer or the like in the drive unit 12. Will be done. 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 control unit 122 has parameters based on the sound signal and the sound collection result at the time of sound emission when both the time condition that a predetermined time zone has arrived at midnight and the volume condition are satisfied.
  • the acquisition unit 124 is made to acquire the adjustment parameter.
  • the volume condition is a condition in which the volume of the background sound other than the sound based on the sound signal in the sound collection result becomes a predetermined level or less for a predetermined time.
  • the sound collection result at the time of sound emission is a sound collection result including a sound based on a sound signal.
  • the adjustment parameter referred to in this embodiment is a sound quality parameter for adjusting the sound quality of the sound radiated by the vibrator 11, as will be described later.
  • the background sound other than the sound based on the sound signal may be the sound collected by the microphone M1 when the vibrator 11 does not radiate the sound, or the sound is collected at an arbitrary time point. It may be a sound represented by a component extracted from the result by a predetermined analysis process.
  • the sound collection result storage unit 123 stores the sound collection result acquired by the sound collection result acquisition unit 121.
  • the control unit 122 stores only the sound collection result at the time of sound emission when the above time condition and volume condition are satisfied in the sound collection result storage unit 123. Then, the acquisition of the adjustment parameter is executed based on the sound signal and the sound collection result at the time of sound emission stored in the sound collection result storage unit 123.
  • the parameter acquisition unit 124 acquires the sound signal and the sound collection result acquisition unit 121 and stores the adjustment parameter in the sound collection result storage unit 123 (that is, sound emission). Obtained based on the time sound collection result).
  • 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 and the sound collection result at the time of sound emission is executed.
  • the parameter acquisition unit 124 sends a sound signal and a sound collection result at the time of sound emission to the server device SV1 via the communication network N1, and receives the calculation result in the server device SV1 via the communication network N1 to obtain adjustment parameters. get.
  • the parameter acquisition unit 124 acquires the sound quality parameter for adjusting the sound quality as the above adjustment parameter.
  • the sound quality parameter is obtained by synchronizing the sound signal and the sound collection result at the time of sound emission with each other, comparing the two for each of a plurality of frequency bands to obtain the difference, and calculating the gain for reducing the difference. It is a set of multiple gains.
  • the parameter acquisition unit 124 acquires a volume parameter for adjusting the volume in addition to the sound quality parameter. In that case, the noise level is based on the background sound when the vibrator 11 does not emit sound, the sound when it is radiated, the sound collection result of each, and the sound signal at the time of sound emission. Is calculated, and the optimum volume according to the noise level is calculated as a volume parameter.
  • the control unit 122 acquires sound quality parameters based on the sound signal when the time condition and the volume condition are satisfied and the sound collection result at the time of sound emission. On the other hand, the control unit 122 causes the parameter acquisition unit 124 to acquire the volume parameter regardless of the time condition and the volume condition.
  • 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 responds to the sound collection result regarding the user's question obtained by the sound collection result acquisition unit 121 and the sound is collected by the microphone M1. The user's question is grasped by voice recognition processing. Then, the sound signal generation unit 126 generates a sound signal representing the answer voice to the question.
  • the control unit 122 when the time condition and the volume condition are satisfied, the control unit 122 causes the vibrator to emit a sound based on the sound signal for acquisition of the sound quality parameter.
  • the sound signal generation unit 126 under the control of the control unit 122, the sound signal generation unit 126 generates a sound signal representing a clear sound suitable for acquiring the sound quality parameter. Then, the control unit 122 executes the acquisition of the sound quality parameter based on the sound signal and the sound collection result at the time of sound emission.
  • the volume parameter the sound signal representing various guidance voices and answer voices, which is generated regardless of the time condition and volume condition, and the sound collection result at the time of sound emission when the guidance voice and answer voice are radiated It will be acquired based on.
  • 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.
  • a volume sound collection result acquisition process is executed in which the sound collection result acquisition unit 121 acquires the sound collection result for the sound around the vibrator 11 collected by the microphone M1 for volume adjustment. (Step S11). In the sound collection at this time, the sound collection results of the background sound when the vibrator 11 does not radiate the sound and the sound when the vibrator 11 radiates the sound are acquired.
  • the parameter acquisition unit 124 executes a volume parameter acquisition step based on these sound collection results and the sound signal at the time of sound emission (step S12). In the volume parameter acquisition step (step S12), the sound collection result and the sound signal are sent from the parameter acquisition unit 124 to the server device SV1, and the volume parameter is calculated in the server device SV1.
  • the noise level is calculated based on the sound collection result and the sound signal, and the optimum volume corresponding to the noise level is calculated as the volume parameter.
  • the calculation result is received by the parameter acquisition unit 124 from the server device SV1.
  • the sound collection result at this time is discarded without being stored after the volume parameter is calculated.
  • a volume update step is executed in which the control unit 122 updates the stored contents of the parameter storage unit 125 with the acquired volume parameters (step S13).
  • 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 volume update step after installation (step S13). Will update the volume parameters.
  • step S14 the control unit 122 executes a time control step of determining whether or not the time condition that the predetermined time zone has arrived is satisfied (step S14). If the time condition is not satisfied (NO determination in step S14), the process returns to step S11 and the subsequent processing is repeated.
  • the volume control step is executed by the control unit 122 (step S15). In the volume control step (step S15), it is determined whether or not the volume condition that the volume of the background sound when the vibrator 11 does not radiate the sound is equal to or lower than the predetermined level for a predetermined time is satisfied. If the volume condition is not satisfied (NO determination in step S15), the process returns to step S11 and the subsequent processing is repeated.
  • the sound quality collection result acquisition step of acquiring the sound collection result by the microphone M1 for sound quality adjustment is executed (sound quality collection result acquisition unit 121).
  • Step S16 the control unit 122 causes the vibrator 11 to radiate a sound based on the sound signal for acquiring the sound quality parameter. Then, when the vibrator 11 radiates the sound, the sound collection result at the time of sound emission including the sound is acquired. Then, the sound collection result storage step of storing the acquired sound collection result at the time of sound emission in the sound collection result storage unit 123 by the control unit 122 is executed (step S17).
  • the parameter acquisition unit 124 executes the sound quality parameter acquisition step of acquiring the sound quality parameter based on the sound signal at the time of sound emission and the sound collection result at the time of sound emission (step S18).
  • the parameter acquisition unit 124 reads out the sound collection result at the time of sound emission stored in the sound collection result storage step (step S17), and the sound signal corresponding to the sound collection result at the time of sound emission. It is sent to the server device SV1 in a state of being synchronized with.
  • the server device SV1 calculates a set of gains in a plurality of frequency bands as a sound quality parameter based on the transmitted sound signal and the sound collection result at the time of sound emission. Then, the parameter acquisition unit 124 receives the calculation result from the server device SV1.
  • a sound quality update step is executed in which the control unit 122 updates the stored contents of the parameter storage unit 125 with the acquired sound quality parameters (step S19).
  • the sound quality update step step S19
  • the sound quality parameters stored in the parameter storage unit 125 are updated.
  • the process returns to the volume 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 S20).
  • this sound signal generation step (step S20) 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 adjustment unit 127 executes the adjustment step (step S21).
  • 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.
  • the sound signal generated in the sound signal generation step (step S20) 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.
  • the volume update step (step S13) and the sound quality update step (step S19) have not been executed for the stored contents of the parameter storage unit 125 at the time of this adjustment step (step S21), the default parameters are used.
  • various update steps (steps S13, S19) are executed, the updated parameters are used.
  • various update steps (steps S13 and S19) are executed during the execution of the adjustment step (step S21), that is, during the emission of sound by the vibrator 11, the sound radiated after that is updated. It will be adjusted using the latest parameters of.
  • the adjustment step (step S21) including the sound radiation by the vibrator 11 is completed, the process returns to the sound signal generation step (step S20) 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 at the time of sound emission used for acquiring the sound quality parameter as the adjustment parameter is a collection of the following cases. It is a sound result. That is, the sound collection result at the time of sound emission is the sound collection result when the volume condition that the volume of the background sound is equal to or less than a predetermined level for a predetermined time is satisfied. When such a volume condition is satisfied, it is unlikely that a conversation or the like is taking place around the vibrator 11. That is, according to the present embodiment, since the sound quality parameter is acquired based on the sound collection result at the time of sound emission in such a case, the sound can be adjusted while protecting the privacy.
  • the parameter acquisition unit 124 sends a sound signal and a sound collection result to the server device SV1 via the communication network N1. Then, the parameter acquisition unit 124 acquires the sound quality parameter as the adjustment parameter by receiving the calculation result in the server device SV1 via the communication network N1. Further, the volume parameter, which is another parameter, is also acquired through the same processing. According to this configuration, 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.
  • control unit 122 stores only the sound collection result at the time of sound emission when the volume condition is satisfied in the sound collection result storage unit 123. According to this configuration, privacy is protected by storing only the sound collection result at the time of sound emission when the volume condition is satisfied, and the source of sound quality parameter acquisition is saved. Therefore, for example, at a later date. It can contribute to the maintenance of.
  • the control unit 122 when the volume condition is satisfied, causes the vibrator 11 to emit a sound based on the sound signal for acquisition of the adjustment parameter, and collects the sound signal and the sound at the time of emission. Acquire adjustment parameters based on the result.
  • the vibrator 11 when the volume condition is satisfied, the vibrator 11 radiates sound for acquisition of the sound quality parameter, and the sound collection result at the time of sound emission can be obtained. Therefore, it is clear suitable for the acquisition of the sound quality parameter. It is possible to acquire the sound collection result at the time of sound emission. Then, the accuracy of the acquired sound quality parameter can be improved by acquiring the sound collection result at the time of sound emission.
  • the control unit 122 acquires the sound quality parameter based on the sound signal when the volume condition is satisfied and the sound collection result at the time of sound emission, and acquires the parameter regardless of the volume condition.
  • the sound quality parameters used for sound quality adjustment are acquired when the volume conditions are met from the viewpoint of privacy protection. Will be done.
  • the acquisition of the volume parameter used for adjusting the volume which is likely to be performed frequently, is acquired regardless of the volume condition. By limiting the use of the volume condition only to the acquisition of the sound quality parameter from the viewpoint of privacy protection, the volume can be adjusted frequently and the sound can be adjusted satisfactorily.
  • the control unit 122 obtains a sound signal and a sound collection result at the time of sound emission when the time condition and the volume condition that a predetermined time zone has arrived are satisfied. Based on this, the parameter acquisition unit 124 is made to acquire the adjustment parameter. According to this configuration, by adding the above time condition to the condition for obtaining the adjustment parameter, the sound collection result at the time of sound emission when the possibility that a conversation or the like is being performed, such as at midnight, is further low. It is possible to acquire adjustment parameters based on. As described above, according to the above configuration, the sound can be adjusted while further protecting the privacy.
  • 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 executes the acquisition of the sound quality parameter, and the volume parameter is different from the above condition.
  • the points acquired independently are the same as in the above-described embodiment.
  • the sound quality parameter is acquired based on the sound collection result at the time of sound emission when it is unlikely that a conversation or the like is taking place, so the sound should be adjusted while protecting privacy. Needless to say, you can do it.
  • the parameter acquisition unit 224 acquires the adjustment parameter by performing the calculation process based on the sound signal and the sound collection result by itself. According to this configuration, 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.
  • 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 that store only the sound collection result at the time of sound emission when the volume condition is satisfied in the sound collection result storage unit 123 are exemplified.
  • the vibration system is not limited to this, and the above-mentioned memory may not be performed.
  • the stored content can be contributed to maintenance at a later date while protecting privacy. be.
  • the vibration system 1 when the volume condition is satisfied, the vibration system 1 is used to acquire the sound quality parameter by radiating a sound based on the sound signal to the vibrator 11 for acquiring the sound quality parameter. 2 is illustrated.
  • the vibration system is not limited to this, and for example, when the volume condition is satisfied, the sound quality is obtained based on the sound signal at that time and the sound collection result at the time of sound emission, waiting for the radiation of sound such as guidance voice. You may also get the parameters.
  • the vibration system by radiating the sound for the acquisition of the sound quality parameter, it is possible to acquire a clear sound collection result at the time of sound emission suitable for the acquisition of the sound quality parameter, and the accuracy of the acquired sound quality parameter can be improved. Is as described above.
  • the vibration systems 1 and 2 that acquire the sound quality parameter when the volume condition is satisfied and acquire the volume parameter regardless of the volume condition are exemplified.
  • the vibration system is not limited to this, and for example, the volume parameter may not be acquired, or the volume parameter may be acquired when the volume condition is satisfied as in the sound quality parameter.
  • the volume parameter may not be acquired, or the volume parameter may be acquired when the volume condition is satisfied as in the sound quality parameter.
  • privacy protection is achieved for the sound quality parameter, and the volume parameter can be acquired frequently to adjust the sound well. That's right.
  • vibration systems 1 and 2 that acquire sound quality parameters when the time condition and the volume condition are satisfied are exemplified.
  • the vibration system is not limited to this, and the sound quality parameter may be acquired only when the volume condition is satisfied.
  • the sound can be adjusted while further protecting privacy by adding the time condition.
  • it is sufficient to configure the acquisition to be executed when at least one of the time condition and the volume condition is satisfied, and the acquisition is executed based on only the time condition or only the volume condition. You may do it.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Le but de la présente invention est d'ajuster un son tout en protégeant la vie privée. Un système de vibration (1) est caractérisé en ce qu'il comprend : un vibreur (11) pour amener un objet devant être apposé sur celui-ci à émettre un son en émettant des vibrations sur la base d'un signal sonore; une unité d'acquisition de résultat de collecte de son (121) pour acquérir un résultat de collecte de son sonore autour du vibreur (11); une unité d'acquisition de paramètre (124) pour acquérir un paramètre d'ajustement afin d'ajuster l'émission sonore provoquée par le vibreur (11), sur la base du signal sonore et du résultat de collecte de son acquis par l'unité d'acquisition de résultat de collecte de son (121); une unité d'ajustement (127) qui utilise le paramètre d'ajustement pour ajuster l'émission sonore provoquée par le vibreur (11); et une unité de commande (122) qui amène l'unité d'acquisition de paramètre (124) à acquérir le paramètre d'ajustement, sur la base du signal sonore et d'un résultat de collecte de son pendant l'émission sonore comprenant un son basé sur le signal sonore lorsqu'une condition de volume sonore est satisfaite, la condition de volume sonore étant que le volume sonore de son de fond autre que le son sur la base du signal sonore dans le résultat de collecte de son soit inférieur ou égal à un niveau prédéterminé pendant une durée prédéterminée.
PCT/JP2021/000982 2020-03-26 2021-01-14 Système de vibration, procédé de vibration, programme de vibration, et support de stockage WO2021192516A1 (fr)

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JP2020-055232 2020-03-26
JP2020055232 2020-03-26

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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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