WO2021192516A1 - Vibration system, vibration method, vibration program, and storage medium - Google Patents

Vibration system, vibration method, vibration program, and storage medium Download PDF

Info

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
Authority
WO
WIPO (PCT)
Prior art keywords
sound
collection result
parameter
vibrator
sound collection
Prior art date
Application number
PCT/JP2021/000982
Other languages
French (fr)
Japanese (ja)
Inventor
宣昭 田上
洋人 河内
久司 大和田
Original Assignee
パイオニア株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Publication of WO2021192516A1 publication Critical patent/WO2021192516A1/en

Links

Images

Classifications

    • 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.

Landscapes

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

Abstract

The purpose of the present invention is to adjust sound while protecting privacy. A vibration system (1) is characterized by comprising: a vibrator (11) for causing an object to be affixed onto to emit sound by transmitting vibrations based on a sound signal; a sound-collection result acquiring unit (121) for acquiring a sound-collection result of sound around the vibrator (11); a parameter acquiring unit (124) for acquiring an adjustment parameter for adjusting the sound emission caused by the vibrator (11), on the basis of the sound signal and the sound-collection result acquired by the sound-collection result acquiring unit (121); an adjustment unit (127) which uses the adjustment parameter to adjust the sound emission caused by the vibrator (11); and a control unit (122) which causes the parameter acquiring unit (124) to acquire the adjustment parameter, on the basis of the sound signal and a sound-collection result during sound emission including sound based on the sound signal when a sound volume condition is satisfied, the sound volume condition being that the sound volume of background sound other than the sound based on the sound signal in the sound-collection result be less than or equal to a predetermined level for a predetermined duration of time.

Description

振動システム、振動方法、振動プログラム、及び記憶媒体Vibration systems, vibration methods, vibration programs, and storage media
　本発明は、振動子によって貼付対象物に振動を伝達することで音を放射させる振動システム、振動方法、振動プログラム、及び記憶媒体に関する。 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.
　従来、振動子によって貼付対象物に振動を伝達することで音を放射させる技術が提案されている（例えば、特許文献１参照。）。この技術では、人の出入りする部屋の壁面を振動子の貼付対象物とし、この壁面に振動を伝達させて部屋の内部に音を放射させることで好ましい音響空間を得ている。 Conventionally, a technique has been proposed in which sound is radiated by transmitting vibration to an object to be attached by a vibrator (see, for example, Patent Document 1). In this technology, the wall surface of a room where people enter and exit is the object to which the vibrator is attached, and vibration is transmitted to this wall surface to radiate sound inside the room, thereby obtaining a preferable acoustic space.
　ここで、貼付対象物に振動を伝達することで音を放射させる技術では、放射させる音について高音側や低音側に音質が偏ったり、総じて音量不足となったりする等、所望の音が得られない場合がある。そこで、このような場合に対応するべく、振動子が実際に放射させた音を集音し、その集音結果に基づいて、振動子が放射させる音を調整することが考えられる。 Here, in the technology of radiating sound by transmitting vibration to the object to be attached, 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.
特開２０００－２２４６８０号公報Japanese Unexamined Patent Publication No. 2000-224680
　しかしながら、上記のような集音結果に基づいて調整する処理では、その集音結果にプライベートな会話等が含まれている可能性があり、プライバシー保護の観点から改善の余地が見られる。 However, in the process of adjusting based on the sound collection result as described above, there is a possibility that the sound collection result includes private conversations, etc., and there is room for improvement from the viewpoint of privacy protection.
　したがって、本発明の課題は、プライバシーを保護しつつ音を調整することができる振動システム、振動方法、振動プログラム、及び記憶媒体を提供すること等が一例として挙げられる。 Therefore, as an example, 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.
　前述した課題を解決し目的を達成するために、本発明の振動システムは、貼付対象物に、音信号に基づいた振動を伝達することで音を放射させる振動子と、前記振動子の周辺における音の集音結果を取得する集音結果取得部と、前記振動子が放射させる音を調整するための調整パラメータを、前記音信号及び前記集音結果取得部で取得された前記集音結果に基づいて取得するパラメータ取得部と、前記調整パラメータを用いて前記振動子が放射させる音を調整する調整部と、前記集音結果における、前記音信号に基づく音以外の背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされた場合の、前記音信号、及び当該音信号に基づく音を含む放音時集音結果に基づいて、前記パラメータ取得部に前記調整パラメータの取得を実行させる制御部と、を備えたことを特徴とする。 In order to solve the above-mentioned problems and achieve the object, 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 to be acquired based on the above, the adjustment unit to adjust the sound radiated 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 for a predetermined time. 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.
　また、前述した課題を解決し目的を達成するために、本発明の振動方法は、貼付対象物に、音信号に基づいた振動を伝達することで音を放射させる振動子の周辺における音の集音結果を取得する集音結果取得工程と、前記振動子が放射させる音を調整するための調整パラメータを、前記音信号及び前記集音結果取得工程で取得された集音結果に基づいて取得するパラメータ取得工程と、前記調整パラメータを用いて前記振動子が放射させる音を調整する調整工程と、前記集音結果における前記音信号に基づく音以外の背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされた場合の、前記音信号、及び当該音信号に基づく音を含む放音時集音結果に基づいて、前記パラメータ取得工程による前記調整パラメータの取得を実行させる制御工程と、を備えたことを特徴とする。 Further, in order to solve the above-mentioned problems and achieve the object, 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. A control step for executing the acquisition of the adjustment parameter by the parameter acquisition step 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 following volume conditions are satisfied. It is characterized by having.
　また、前述した課題を解決し目的を達成するために、本発明の振動プログラムは、上述の振動方法を、コンピュータにより実行させることを特徴とする。 Further, in order to solve the above-mentioned problems and achieve the object, the vibration program of the present invention is characterized in that the above-mentioned vibration method is executed by a computer.
　また、前述した課題を解決し目的を達成するために、本発明の記憶媒体は、上述の振動プログラムを記憶したことを特徴とする。 Further, in order to solve the above-mentioned problems and achieve the object, the storage medium of the present invention is characterized in that the above-mentioned vibration program is stored.
振動子を用いて音を得る振動システムが適用された第１適用例を示す模式図である。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. 図１に模式的に示されている振動子の外観斜視図である。It is external perspective view of the vibrator which is schematically shown in FIG. 振動システムの第２適用例を示す模式図である。It is a schematic diagram which shows the 2nd application example of a vibration system. 振動システムの第３適用例を示す模式図である。It is a schematic diagram which shows the 3rd application example of a vibration system. 振動システムの第４適用例を示す模式図である。It is a schematic diagram which shows the 4th application example of a vibration system. 図１～図５に示されている振動システムにおける機能ブロックを示す模式的なブロック図である。It is a schematic block diagram which shows the functional block in the vibration system shown in FIGS. 1 to 5. 図６に示されている振動システムで実行される振動方法の処理の流れを表すフローチャートである。It is a flowchart which shows the processing flow of the vibration method executed by the vibration system shown in FIG. 図１～図７に示されている実施例の変形例を、図６の機能ブロック図に対応する変形例の機能ブロック図で示す図である。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.
　以下、本発明の実施形態を説明する。本発明の実施形態に係る振動システムは、振動子と、集音結果取得部と、パラメータ取得部と、調整部と、制御部と、を備えている。振動子は、貼付対象物に、音信号に基づいた振動を伝達することで音を放射させる。集音結果取得部は、振動子の周辺における音の集音結果を取得する。パラメータ取得部は、振動子が放射させる音を調整するための調整パラメータを、音信号及び集音結果取得部で取得された集音結果に基づいて取得する。調整部は、調整パラメータを用いて振動子が放射させる音を調整する。制御部は、集音結果における、音信号に基づく音以外の背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされた場合の、音信号及び放音時集音結果に基づいて、パラメータ取得部に調整パラメータの取得を実行させる。放音時集音結果は、音信号に基づく音を含む集音結果である。 Hereinafter, embodiments of the present invention will be described. The vibration system according to the embodiment of the present invention 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.
　上記の振動システムによれば、調整パラメータの取得に用いられる放音時集音結果は、背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされた場合の集音結果となっている。このような音量条件が満たされる場合、振動子の周辺において会話等が行われている可能性が低い。つまり、上記の振動システムによれば、このような場合の放音時集音結果に基づいて調整パラメータの取得が実行されるので、プライバシーを保護しつつ音を調整することができる。 According to the above vibration system, 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.
　ここで、本実施形態の振動システムは、パラメータ取得部が、音信号及び集音結果に基づく算出処理を行うことで調整パラメータを取得するシステムとしてもよい。 Here, 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.
　この構成によれば、パラメータの算出を含むシステム全体を貼付対象物の近傍に集約することができるので、システム構成を簡略化してコスト等を低減することができる。 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 etc. can be reduced.
　あるいは、本実施形態の振動システムは、所定の通信ネットワークに接続されるサーバ装置において、音信号及び集音結果に基づく調整パラメータの算出処理が実行されることとしてもよい。この場合、パラメータ取得部が、通信ネットワークを介してサーバ装置に音信号及び集音結果を送り、当該サーバ装置での算出結果を、通信ネットワークを介して受け取ることで調整パラメータを取得することとなる。 Alternatively, in the vibration system of the present embodiment, 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. In this case, 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. ..
　この構成によれば、パラメータの算出が、処理能力に余裕のあるサーバ装置で実行され、パラメータ取得部はその算出結果を受け取るだけとなることから、より処理負担が抑えられるシステムを構築することができる。 According to this configuration, 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.
　また、本実施形態の振動システムは、集音結果取得部で取得された集音結果を記憶する集音結果記憶部を、更に備えている。そして、制御部は、音量条件が満たされた場合の放音時集音結果のみを集音結果記憶部に記憶させ、音信号、及び、集音結果記憶部に記憶させた放音時集音結果に基づいて調整パラメータの取得を実行させることとなっている。 Further, 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.
　この構成によれば、音量条件が満たされた場合の放音時集音結果のみを記憶させることでプライバシーを保護しつつも、調整パラメータの取得の源泉が保存されることとなるので、例えば後日のメンテナンス等に資することができる。 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 acquisition of adjustment parameters is saved. Therefore, for example, at a later date. It can contribute to the maintenance of.
　また、本実施形態では、制御部が、音量条件が満たされた場合に、振動子に、調整パラメータの取得用に音信号に基づく音を放射させるとともに、音信号及び放音時集音結果に基づいて調整パラメータの取得を実行させる。 Further, in the present embodiment, when the volume condition is satisfied, the control unit 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.
　この構成によれば、音量条件が満たされた場合に、振動子に調整パラメータの取得用に音を放射させて放音時集音結果が得られるので、調整パラメータの取得に適した明瞭な放音時集音結果の取得が可能となる。そして、このような放音時集音結果の取得により、取得される調整パラメータの精度を向上させることができる。 According to this configuration, 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.
　また、本実施形態では、パラメータ取得部が、振動子が放射させる音の音質を調整するための音質パラメータを調整パラメータとして取得する。更に、パラメータ取得部は、振動子が放射させる音の音量を調整するための音量パラメータを、音信号、振動子が音を放射させていないときの集音結果、及び放音時集音結果に基づいて取得する。そして、制御部が、音量条件が満たされた場合の音信号及び放音時集音結果に基づいて音質パラメータの取得を実行させるとともに、音量条件とは無関係に、パラメータ取得部に音量パラメータの取得を実行させる。 Further, in the present embodiment, 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.
　この構成によれば、詳細な音の状態を必要とするが、調整の頻度がさほど高くはない音質の調整に用いられる音質パラメータについては、プライバシー保護の観点から音量条件が満たされた場合に取得される。他方、音量の状態のみが分かれば取得できプライバシー保護に関する懸念は少ないが、頻繁に行われる可能性が高い音量の調整に用いられる音量パラメータの取得については、音量条件とは無関係に取得される。音量条件の使用を、プライバシー保護の観点から音質パラメータの取得についてのみに限定することで、音量については頻繁に調整することが可能となり、音を良好に調整することができる。 According to this configuration, detailed sound conditions are required, but the frequency of adjustment is not so high. 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. On the other hand, although it can be acquired only by knowing the volume state and there is little concern about privacy protection, 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.
　また、本実施形態の振動システムは、制御部が、音量条件が満たされた場合の音信号及び放音時集音結果に替えて、次のような源泉に基づいてパラメータ取得部に調整パラメータの取得を実行させるものであってもよい。即ち、制御部が、予め定められた時間帯が到来しているという時間条件と音量条件との少なくとも一方が満たされた場合の音信号及び放音時集音結果に基づいて、パラメータ取得部に調整パラメータの取得を実行させる。 Further, in the vibration system of the present embodiment, 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.
　この構成によれば、調整パラメータを得るための条件に、上記の時間条件を加えることで、例えば深夜等というように会話等が行われている可能性が更に低いときの放音時集音結果に基づいた調整パラメータの取得が可能となる。このように、上記の構成によれば、プライバシーを一層保護しつつ音を調整することができる。 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.
　また、本発明の実施形態に係る振動方法は、集音結果取得工程と、パラメータ取得工程と、調整工程と、制御工程と、を備えている。集音結果取得工程は、貼付対象物に、音信号に基づいた振動を伝達することで音を放射させる振動子の周辺における音の集音結果を取得する工程である。パラメータ取得工程は、振動子が放射させる音を調整するための調整パラメータを、音信号及び集音結果取得工程で取得された集音結果に基づいて取得する工程である。調整工程は、調整パラメータを用いて振動子が放射させる音を調整する工程である。制御工程は、集音結果における音信号に基づく音以外の背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされた場合の、音信号及び放音時集音結果に基づいて、パラメータ取得工程による調整パラメータの取得を実行させる工程である。放音時集音結果は、音信号に基づく音を含む集音結果である。 Further, the vibration method according to the embodiment of the present invention 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.
　上記の振動方法によれば、振動子の周辺において会話等が行われている可能性が低い、音量条件が満たされる場合の放音時集音結果に基づいて調整パラメータの取得が実行されるので、プライバシーを保護しつつ音を調整することができる。 According to the above vibration method, it is unlikely that conversation or the like is taking place around the vibrator, and 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.
　また、本発明の実施形態に係る振動プログラムは、上述の振動方法を、コンピュータにより実行させるプログラムとなっている。 Further, 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.
　上記の振動プログラムによれば、上述の振動方法をコンピュータにより実行させることで、プライバシーを保護しつつ音を調整することができる。 According to the above vibration program, the sound can be adjusted while protecting privacy by executing the above vibration method by a computer.
　また、本発明の実施形態に係る記憶媒体は、上述の振動プログラムを記憶した媒体となっている。 Further, the storage medium according to the embodiment of the present invention is a medium that stores the above-mentioned vibration program.
　上記の記憶媒体によれば、上述の振動プログラムを読み出し、当該振動プログラムに基づいて上述の振動方法をコンピュータにより実行させることで、プライバシーを保護しつつ音を調整することができる。 According to the above storage medium, 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.
　以下、プライバシーを保護しつつ音を調整するという課題を解決するための実施例について図を参照して具体的に説明する。 Hereinafter, an example for solving the problem of adjusting the sound while protecting privacy will be specifically described with reference to the figure.
　図１は、振動子を用いて音を得る振動システムが適用された第１適用例を示す模式図であり、図２は、図１に模式的に示されている振動子の外観斜視図である。 FIG. 1 is a schematic view showing a first application example to which a vibration system for obtaining sound using a vibrator is applied, and FIG. 2 is an external perspective view of the vibrator schematically shown in FIG. be.
　図１に示されている第１適用例は、本実施例の振動システム１をバス停留所の案内標識Ａ１に適用したものである。振動システム１は、バスの運行や各種広告等に関する音声での情報提供を行うシステムとなっており、振動子１１と、駆動ユニット１２と、を備えている。また、振動システム１では、バス停留所の利用者の問いかけに対して音声で答える対話形式の情報提供も可能となっている。 In the first application example shown in FIG. 1, 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. In addition, the vibration system 1 can also provide interactive information that answers the questions of the users of the bus stop by voice.
　振動子１１は、貼付対象物に振動を伝達することで音を放射させるものであり、振動アクチュエータ１１１、信号電線１１２、及び貼付部１１３、を備えている。振動アクチュエータ１１１は、音を表す電気信号としての音信号を、信号電線１１２を介して供給され、その音信号に応じて自ら振動する部位である。信号電線１１２は、外部からの音信号を振動アクチュエータ１１１に入力するための入力線である。貼付部１１３は、振動アクチュエータ１１１と一体に形成された板状の部位であり貼付対象物に貼付される。 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.
　駆動ユニット１２は、振動子１１に信号電線１１２を介して有線接続されており、内蔵のマイクロコンピュータにおいて提供情報に応じた音信号の生成処理等を実行する。そして、駆動ユニット１２は、生成した音信号を振動子１１に供給して振動子１１を駆動し、音を放射させることで、音声での情報提供を行う。 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.
　また、振動子１１で得られる音に対する調整に資するために駆動ユニット１２には２つのマイクＭ１が有線接続されている。即ち、本実施例の振動システム１では、振動子１１が実際に放射させた音がマイクＭ１で集音され、駆動ユニット１２では、振動子１１へと供給される音信号がマイクＭ１での集音結果に基づいて調整されることで、振動子１１が放射させる音が調整される。また、マイクＭ１は、対話形式の情報提供にも利用される。駆動ユニット１２では、マイクＭ１で集音された利用者の音声に対する音声認識処理が行われて利用者からの問いかけが認識され、その問いかけに対する回答音声を表す音信号が生成される。この音信号に基づく振動子１１の駆動により、利用者の問いかけに対する音声での回答がなされる。 Further, 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. In the drive unit 12, 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.
　図１に示されている第１適用例では、案内標識Ａ１における円形平板状の停留所名称表示板Ａ１１の裏面中央に振動子１１が貼付され、路線図／時刻表表示板Ａ１２に２つのマイクＭ１が固定され、土台Ａ１３に駆動ユニット１２が固定されている。この第１適用例では、振動子１１の貼付対象物である停留所名称表示板Ａ１１に振動が伝達されて、この停留所名称表示板Ａ１１を主たる発音部として音が放射される。 In the first application example shown in FIG. 1, 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. In this first application example, 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.
　以下、本実施例の振動システム１の、他の適用例について説明する。 Hereinafter, other application examples of the vibration system 1 of this embodiment will be described.
　図３は、振動システムの第２適用例を示す模式図であり、図４は、振動システムの第３適用例を示す模式図であり、図５は、振動システムの第４適用例を示す模式図である。 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, and FIG. 5 is a schematic diagram showing a fourth application example of the vibration system. It is a figure.
　図３の第２適用例は、公園等の案内標識Ａ２に振動システム１を適用した例である。この第２適用例では、地図等を表示する長方形平板状の案内表示板Ａ２１の裏面中央に振動子１１が貼付されている。また、案内表示板Ａ２１を支持する２本の支柱Ａ２２それぞれに１つずつマイクＭ１が固定され、１本の支柱Ａ２２の根本部に駆動ユニット１２が固定されている。 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. In this second application example, 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. Further, 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.
　図４の第３適用例は、喫茶店等の店舗案内用のＡ型スタンド看板Ａ３に振動システム１を適用した例である。この第３適用例では、各種店舗情報を表示する長方形平板状の２枚の案内表示板Ａ３１のうちの一枚の裏面中央に振動子１１が貼付されている。また、同じ案内表示板Ａ２１の裏面における振動子１１よりも下方の位置に１つのマイクＭ１が固定され、振動子１１やマイクＭ１の取付け側とは反対側の案内表示板Ａ３１の裏面下方位置に駆動ユニット１２が固定されている。 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. In this third application example, 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. Further, 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.
　図５の第４適用例は、動物園等に設置される、動物の形を模した案内看板Ａ４に振動システム１を適用した例である。この第４適用例では、１枚の案内看板Ａ４の裏面に、振動子１１、１つのマイクＭ１、及び駆動ユニット１２が全て取り付けられている。振動子１１は案内看板Ａ４の裏面上方位置に貼付され、その下方位置に１つのマイクＭ１が固定されている。また、案内看板Ａ４の裏面の最下方位置に駆動ユニット１２が固定されている。 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. In this fourth application example, 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. Further, the drive unit 12 is fixed at the lowermost position on the back surface of the guide signboard A4.
　以上に説明した第２～第４適用例の何れにおいても、図１の第１適用例の場合と同様に、振動システム１では、振動子１１の貼付対象物である板状の部位を主たる発音部として音が放射される。これにより、音声による各種案内情報の提供や、利用者の問いかけに対する音声での回答が行われる。 In any of the second to fourth application examples described above, as in the case of the first application example of FIG. 1, in the vibration system 1, 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.
　このような振動システム１は、次のような機能ブロックを備えている。 Such a vibration system 1 has the following functional blocks.
　図６は、図１～図５に示されている振動システムにおける機能ブロックを示す模式的なブロック図である。 FIG. 6 is a schematic block diagram showing functional blocks in the vibration system shown in FIGS. 1 to 5.
　振動システム１は、機能ブロックとして、振動子１１、集音結果取得部１２１、制御部１２２、集音結果記憶部１２３、パラメータ取得部１２４、パラメータ記憶部１２５、音信号生成部１２６、及び調整部１２７、を備えている。尚、ここにいう機能ブロックとしての振動子１１は、図１～図５に示されているハードウェアとしての振動子１１と同じものであるので、両者を特に区別することなく同じ符号を付して説明する。また、振動システム１の機能ブロックのうち、集音結果取得部１２１、制御部１２２、パラメータ取得部１２４、音信号生成部１２６、及び調整部１２７、が駆動ユニット１２におけるマイクロコンピュータ等の動作によって構築される。集音結果記憶部１２３及びパラメータ記憶部１２５は、駆動ユニット１２に搭載されたメモリにおける一記憶領域によって構築される。 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.
　振動子１１は、上述したように貼付対象物に、音信号に基づいた振動を伝達することで音を放射させる。 The vibrator 11 radiates sound by transmitting vibration based on a sound signal to the object to be attached as described above.
　集音結果取得部１２１は、振動子１１の周辺における音がマイクＭ１で集音されたときの集音結果をマイクＭ１から取得する。 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.
　制御部１２２は、例えば深夜等における予め定められた時間帯が到来しているという時間条件と音量条件との両方が満たされた場合の、音信号及び放音時集音結果に基づいて、パラメータ取得部１２４に調整パラメータの取得を実行させる。音量条件は、集音結果における、音信号に基づく音以外の背景音の音量が所定時間に亘って所定レベル以下となる条件である。放音時集音結果は、音信号に基づく音を含む集音結果である。また、本実施例にいう調整パラメータは、後述するように、振動子１１が放射させる音の音質を調整するための音質パラメータのことである。ここで、音信号に基づく音以外の背景音は、振動子１１が音を放射させていないときに、マイクＭ１で集音される音であってもよく、あるいは、任意の時点での集音結果から所定の分析処理によって抽出された成分が表わしている音であってもよい。 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. Further, 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. Here, 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.
　集音結果記憶部１２３は、集音結果取得部１２１で取得された集音結果を記憶する。このとき、制御部１２２が、上記の時間条件及び音量条件が満たされた場合の放音時集音結果のみを集音結果記憶部１２３に記憶させる。そして、音信号、及び、集音結果記憶部１２３に記憶させた放音時集音結果に基づいて調整パラメータの取得を実行させる。 The sound collection result storage unit 123 stores the sound collection result acquired by the sound collection result acquisition unit 121. At this time, 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.
　パラメータ取得部１２４は、調整パラメータを、制御部１２２の制御の下、音信号、及び、集音結果取得部１２１で取得され集音結果記憶部１２３に記憶された集音結果（つまりは放音時集音結果）に基づいて取得する。 Under the control of the control unit 122, 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).
　ここで、本実施例では、駆動ユニット１２が所定の通信ネットワークＮ１を介してサーバ装置ＳＶ１に接続されている。そして、このサーバ装置ＳＶ１において、音信号及び放音時集音結果に基づく調整パラメータの算出処理が実行される。パラメータ取得部１２４は、通信ネットワークＮ１を介してサーバ装置ＳＶ１に音信号及び放音時集音結果を送り、当該サーバ装置ＳＶ１での算出結果を、通信ネットワークＮ１を介して受け取ることで調整パラメータを取得する。 Here, in this embodiment, 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.
　また、パラメータ取得部１２４は、音質を調整するための音質パラメータを上記の調整パラメータとして取得する。音質パラメータは、音信号と放音時集音結果とを互いに同期させた上で、複数の周波数帯域それぞれについて両者を比較して差分を求め、その差分を縮めるためのゲインを算出することで得られた複数のゲインのセットである。更に、パラメータ取得部１２４は、音質パラメータに加えて、音量を調整するための音量パラメータも取得する。その際には、振動子１１が音を放射させていないときの背景音と、放射させているときの音と、のそれぞれの集音結果、及び放音時の音信号、に基づいて騒音レベルが算出され、その騒音レベルに応じた最適なボリュームが音量パラメータとして算出される。 Further, 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. Further, 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.
　制御部１２２は、時間条件及び音量条件が満たされた場合の音信号及び放音時集音結果に基づいて音質パラメータの取得を実行させる。他方、制御部１２２は、時間条件及び音量条件とは無関係に、パラメータ取得部１２４に音量パラメータの取得を実行させる。 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.
　パラメータ記憶部１２５は、パラメータ取得部１２４によって取得された音質パラメータ及び音量パラメータを記憶する。 The parameter storage unit 125 stores the sound quality parameter and the volume parameter acquired by the parameter acquisition unit 124.
　音信号生成部１２６は、各種案内音声を表す音信号の生成を行う。また、本実施例では、対話形式での情報提供のために、音信号生成部１２６では、マイクＭ１で集音され集音結果取得部１２１で取得された利用者の問いかけについての集音結果に対する音声認識処理による利用者の問いかけの把握が行われる。そして、音信号生成部１２６は、その問いかけへの回答音声を表す音信号の生成を行う。 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.
　ここで、本実施例では、制御部１２２が、時間条件及び音量条件が満たされた場合に、振動子に、音質パラメータの取得用に音信号に基づく音を放射させる。このときには、制御部１２２による制御の下、音信号生成部１２６が、音質パラメータの取得に適した明瞭な音を表す音信号を生成する。そして、制御部１２２は、その音信号及び放音時集音結果に基づいて音質パラメータの取得を実行させる。 Here, in this embodiment, 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. At this time, 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.
　他方、音量パラメータについては、時間条件や音量条件とは無関係に生成される、各種案内音声や回答音声を表す音信号と、案内音声や回答音声が放射されたときの放音時集音結果に基づいて取得されることとなる。 On the other hand, regarding 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.
　調整部１２７は、パラメータ取得部１２４で取得され、パラメータ記憶部１２５に記憶された音質パラメータや音量パラメータを用い、音信号生成部１２６で生成された音信号を調整し、その調整済みの音信号を振動子１１に供給する。この音信号の調整と、調整済みの音信号の供給により、調整部１２７は、振動子１１が放射させる音を調整する。 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.
　次に、図６に示されている振動システム１で実行される振動方法の処理について、ここまでの説明と重複する部分もあるが改めて説明する。 Next, the processing of the vibration method executed by the vibration system 1 shown in FIG. 6 will be described again, although there are some overlaps with the explanations so far.
　図７は、図６に示されている振動システムで実行される振動方法の処理の流れを表すフローチャートである。 FIG. 7 is a flowchart showing the processing flow of the vibration method executed by the vibration system shown in FIG.
　この図７に示されるフローチャートは、調整パラメータを取得して記憶／更新するパラメータ取得フローと、予め定められたタイミングでの案内音声や、利用者の問いかけに対する回答音声を放射する音声放射フローと、の２つのフローからなる。これら２つのフローは、駆動ユニット１２に電源が投入されるとスタートして互いに並行して実行される。 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.
　パラメータ取得フローでは、まず、マイクＭ１で集音される振動子１１の周辺における音についての集音結果を、集音結果取得部１２１が音量調整用に取得する音量用集音結果取得工程が実行される（ステップＳ１１）。このときの集音では、振動子１１が音を放射させていないときの背景音と、放射させているときの音と、のそれぞれの集音結果が取得される。次に、これらの集音結果と放音時の音信号とに基づく音量パラメータ取得工程がパラメータ取得部１２４で実行される（ステップＳ１２）。音量パラメータ取得工程（ステップＳ１２）では、集音結果と音信号とがパラメータ取得部１２４からサーバ装置ＳＶ１に送られ、サーバ装置ＳＶ１において音量パラメータが算出される。サーバ装置ＳＶ１では、集音結果と音信号とに基づいて騒音レベルが算出され、その騒音レベルに応じた最適なボリュームが音量パラメータとして算出される。その算出結果が、サーバ装置ＳＶ１からパラメータ取得部１２４で受け取られる。このときの集音結果は音量パラメータの算出後、記憶されずに破棄される。続いて、取得された音量パラメータで制御部１２２がパラメータ記憶部１２５の記憶内容を更新する音量更新工程が実行される（ステップＳ１３）。尚、本実施例では、振動システム１が設置現場に設置される初期段階では、パラメータ記憶部１２５にはデフォルトの音量パラメータ及び音質パラメータが記憶されており、設置後の音量更新工程（ステップＳ１３）によって音量パラメータが更新されることとなる。 In the parameter acquisition flow, first, 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. Next, 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. 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. Subsequently, 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). In this embodiment, 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.
　次に、予め定められた時間帯が到来しているという時間条件が満たされているか否かを判断する時間制御工程が制御部１２２で実行される（ステップＳ１４）。時間条件が満たされていない場合（ステップＳ１４のＮＯ判定）、ステップＳ１１に戻って以降の処理が繰り返される。時間条件が満たされている場合（ステップＳ１４のＹＥＳ判定）、今度は音量制御工程が制御部１２２で実行される（ステップＳ１５）。音量制御工程（ステップＳ１５）では、振動子１１が音を放射させないときの背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされているか否かが判断される。音量条件が満たされていない場合（ステップＳ１５のＮＯ判定）、ステップＳ１１に戻って以降の処理が繰り返される。 Next, 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. When the time condition is satisfied (YES determination in step S14), 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.
　音量条件が満たされている場合（ステップＳ１５のＹＥＳ判定）、マイクＭ１での集音結果を、集音結果取得部１２１が音質調整用に取得する音質用集音結果取得工程が実行される（ステップＳ１６）。このときには、制御部１２２が、振動子１１に、音質パラメータの取得用に音信号に基づく音を放射させる。そして、振動子１１が音を放射させたときの、その音を含む放音時集音結果が取得される。そして、その取得された放音時集音結果を制御部１２２が集音結果記憶部１２３に記憶させる集音結果記憶工程が実行される（ステップＳ１７）。 When the volume condition is satisfied (YES determination in step S15), 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). At this time, 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).
　この後、放音時の音信号及び放音時集音結果に基づいて音質パラメータを取得する音質パラメータ取得工程がパラメータ取得部１２４によって実行される（ステップＳ１８）。音質パラメータ取得工程（ステップＳ１８）では、パラメータ取得部１２４が、集音結果記憶工程（ステップＳ１７）で記憶された放音時集音結果を読み出し、その放音時集音結果に対応した音信号と同期させた状態でサーバ装置ＳＶ１に送る。サーバ装置ＳＶ１では、送られてきた音信号及び放音時集音結果に基づき、複数の周波数帯域におけるゲインのセットを音質パラメータとして算出する。そして、パラメータ取得部１２４が、その算出結果をサーバ装置ＳＶ１から受け取る。 After that, 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). In the sound quality parameter acquisition step (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.
　続いて、取得された音質パラメータで制御部１２２がパラメータ記憶部１２５の記憶内容を更新する音質更新工程が実行される（ステップＳ１９）。音質更新工程（ステップＳ１９）では、パラメータ記憶部１２５に記憶されている音質パラメータが更新されることとなる。音質更新工程（ステップＳ１９）の後は、音量用集音結果取得工程（ステップＳ１１）に戻って、以降の処理が繰り返される。 Subsequently, 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). In the sound quality update step (step S19), the sound quality parameters stored in the parameter storage unit 125 are updated. After the sound quality update step (step S19), the process returns to the volume sound collection result acquisition step (step S11), and the subsequent processes are repeated.
　他方、音声放射フローでは、振動子１１によって放射させる音を表す音信号を生成する音信号生成工程が音信号生成部１２６によって実行される（ステップＳ２０）。この音信号生成工程（ステップＳ２０）では、各種案内音声を表す音信号の生成や、音声認識処理による利用者の問いかけの把握と、その問いかけへの回答音声を表す音信号の生成が行われる。そして、予め定められた案内音声の放射タイミングや、利用者への回答のタイミング等、音を放射すべきタイミングが到来すると、調整部１２７によって調整工程が実行される（ステップＳ２１）。調整工程（ステップＳ２１）では、その時点でパラメータ記憶部１２５に記憶されている音量パラメータ及び音質パラメータを用いて、振動子１１による音が調整される。即ち、音信号生成工程（ステップＳ２０）で生成された音信号が各種パラメータによって調整され、その調整済みの音信号が振動子１１に供給されることで、放射させる音が調整される。この調整工程（ステップＳ２１）の時点で、パラメータ記憶部１２５の記憶内容について音量更新工程（ステップＳ１３）や音質更新工程（ステップＳ１９）が実行されていなければ、デフォルトのパラメータが用いられる。他方、各種更新工程（ステップＳ１３，Ｓ１９）が実行されていれば、その更新済みのパラメータが用いられる。また、調整工程（ステップＳ２１）の実行中、即ち振動子１１による音の放射中に各種更新工程（ステップＳ１３，Ｓ１９）が実行された場合には、それ以降に放射される音は、更新後の最新のパラメータが用いられて調整されることとなる。振動子１１による音の放射を含む調整工程（ステップＳ２１）が終了すると、音信号生成工程（ステップＳ２０）に戻って、次の音放射に備えられる。 On the other hand, in the sound radiation flow, 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). In 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. Then, when the timing for radiating the sound, such as the timing of radiating the guidance voice or the timing of the reply to the user, arrives, the adjustment unit 127 executes the adjustment step (step S21). In 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. That is, 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. If 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. On the other hand, if various update steps (steps S13, S19) are executed, the updated parameters are used. Further, when 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. When 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.
　本実施例では、図７のフローチャートで表される振動方法をコンピュータにより実行させる振動プログラムが、駆動ユニット１２に搭載された記憶媒体に記憶されている。尚、この振動プログラムを記憶する記憶媒体は、駆動ユニット１２に搭載された記憶媒体に限らず、駆動ユニット１２に接続されるＰＣ等に搭載された記憶媒体であってもよく、あるいは公知の可搬記憶媒体等であってもよい。 In this embodiment, 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.
　以上に説明した実施例の振動システム１、振動方法、振動プログラム、及び記憶媒体によれば、調整パラメータとしての音質パラメータの取得に用いられる放音時集音結果は、次のような場合の集音結果となっている。即ち、放音時集音結果は、背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされた場合の集音結果となっている。このような音量条件が満たされる場合、振動子１１の周辺において会話等が行われている可能性が低い。つまり、本実施例によれば、このような場合の放音時集音結果に基づいて音質パラメータの取得が実行されるので、プライバシーを保護しつつ音を調整することができる。 According to the vibration system 1, the vibration method, the vibration program, and the storage medium of the embodiment described above, 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.
　ここで、本実施例では、パラメータ取得部１２４が、通信ネットワークＮ１を介してサーバ装置ＳＶ１に音信号及び集音結果を送る。そして、パラメータ取得部１２４は、当該サーバ装置ＳＶ１での算出結果を、通信ネットワークＮ１を介して受け取ることで調整パラメータとしての音質パラメータを取得することとなる。また、他のパラメータである音量パラメータについても同様の処理を経て取得される。この構成によれば、パラメータの算出が、処理能力に余裕のあるサーバ装置ＳＶ１で実行され、パラメータ取得部１２４はその算出結果を受け取るだけとなることから、より処理負担が抑えられるシステムを構築することができる。 Here, in this embodiment, 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.
　また、本実施例では、制御部１２２は、音量条件が満たされた場合の放音時集音結果のみを集音結果記憶部１２３に記憶させることとなっている。この構成によれば、音量条件が満たされた場合の放音時集音結果のみを記憶させることでプライバシーを保護しつつも、音質パラメータの取得の源泉が保存されることとなるので、例えば後日のメンテナンス等に資することができる。 Further, in the present embodiment, the 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.
　また、本実施例では、制御部１２２が、音量条件が満たされた場合に、振動子１１に、調整パラメータの取得用に音信号に基づく音を放射させるとともに、音信号及び放音時集音結果に基づいて調整パラメータの取得を実行させる。この構成によれば、音量条件が満たされた場合に、振動子１１に音質パラメータの取得用に音を放射させて放音時集音結果が得られるので、音質パラメータの取得に適した明瞭な放音時集音結果の取得が可能となる。そして、このような放音時集音結果の取得により、取得される音質パラメータの精度を向上させることができる。 Further, in the present embodiment, when the volume condition is satisfied, the control unit 122 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. According to this configuration, 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.
　また、本実施例では、制御部１２２が、音量条件が満たされた場合の音信号及び放音時集音結果に基づいて音質パラメータの取得を実行させるとともに、音量条件とは無関係に、パラメータ取得部１２４に音量パラメータの取得を実行させる。この構成によれば、詳細な音の状態を必要とするが、調整の頻度がさほど高くはない音質の調整に用いられる音質パラメータについては、プライバシー保護の観点から音量条件が満たされた場合に取得される。他方、音量の状態のみが分かれば取得できプライバシー保護に関する懸念は少ないが、頻繁に行われる可能性が高い音量の調整に用いられる音量パラメータの取得については、音量条件とは無関係に取得される。音量条件の使用を、プライバシー保護の観点から音質パラメータの取得についてのみに限定することで、音量については頻繁に調整することが可能となり、音を良好に調整することができる。 Further, in this embodiment, 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. Let unit 124 execute the acquisition of the volume parameter. According to this configuration, detailed sound conditions are required, but the frequency of adjustment is not so high. 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. On the other hand, although it can be acquired only by knowing the volume state and there is little concern about privacy protection, 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.
　また、本実施例の振動システム１は、制御部１２２が、予め定められた時間帯が到来しているという時間条件と音量条件とが満たされた場合の音信号及び放音時集音結果に基づいて、パラメータ取得部１２４に調整パラメータの取得を実行させる。この構成によれば、調整パラメータを得るための条件に、上記の時間条件を加えることで、例えば深夜等というように会話等が行われている可能性が更に低いときの放音時集音結果に基づいた調整パラメータの取得が可能となる。このように、上記の構成によれば、プライバシーを一層保護しつつ音を調整することができる。 Further, in the vibration system 1 of the present embodiment, 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.
　次に、図１～図７に示されている実施例の変形例について、図８の機能ブロック図に対応する変形例の機能ブロック図を用いて説明する。 Next, 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.
　図８は、図１～図７に示されている実施例の変形例を、図６の機能ブロック図に対応する変形例の機能ブロック図で示す図である。尚、図７では、図６に示されている構成要素と同等な構成要素については、図６と同じ符号が付されており、以下では、これら同等な構成要素についての重複説明を割愛する。 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. In FIG. 7, 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.
　この変形例の振動システム２では、駆動ユニット２２におけるパラメータ取得部２２４が上述の実施例と異なっている。 In the vibration system 2 of this modified example, the parameter acquisition unit 224 in the drive unit 22 is different from the above-described embodiment.
　本変形例では、駆動ユニット２２はサーバ装置ＳＶ１には接続されておらず、パラメータ取得部２２４が、音信号及び集音結果に基づく算出処理を自ら行うことで音質パラメータ及び音量パラメータを取得することとなっている。 In this modification, 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.
　ただし、本変形例においても、制御部１２２の制御の下、時間条件及び音量条件が満たされた場合に、パラメータ取得部２２４で音質パラメータの取得が実行され、音量パラメータについては上記の条件とは無関係に取得される点は、上述した実施例と同じである。 However, also in this modification, when the time condition and the volume condition are satisfied under the control of the control unit 122, 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.
　以上に説明した変形例でも、会話等が行われている可能性が低い場合の放音時集音結果に基づいて音質パラメータの取得が実行されるので、プライバシーを保護しつつ音を調整することができることは言うまでもない。 Even in the modified example described above, 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.
　ここで、本変形例では、パラメータ取得部２２４が音信号及び集音結果に基づく算出処理を自ら行うことで調整パラメータが取得される。この構成によれば、パラメータの算出を含むシステム全体を貼付対象物の近傍に集約することができるので、システム構成を簡略化してコスト等を低減することができる。 Here, in this modification, 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.
　尚、本発明は、以上に説明した実施例や変形例に限定されるものではなく、本発明の目的が達成できる他の構成等を含み、以下に示すような変形等も本発明に含まれる。 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. ..
　例えば、上述した実施例及び変形例では、振動システム１，２の適用例として、バス停留所の案内標識Ａ１、公園等の案内標識Ａ２、Ａ型スタンド看板Ａ３、及び案内看板Ａ４、への適用例が例示されている。しかしながら、振動システムの適用例はこれらに限るものではなく、その具体的な適用例を問うものではない。 For example, in the above-described examples and modifications, as application examples of the vibration systems 1 and 2, application examples to the guide sign A1 of the bus stop, the guide sign A2 of the park, etc., the A-type stand sign A3, and the guide sign A4. Is illustrated. However, the application examples of the vibration system are not limited to these, and the specific application examples are not questioned.
　また、上述した実施例及び変形例では、２つまたは１つのマイクＭ１での集音結果が、音質パラメータや音量パラメータの取得だけでなく、対話形式での情報提供にも利用される振動システム１，２が例示されている。しかしながら、振動システムはこれらに限るものではなく、対話形式での情報提供を行わない構成としてもよい。また、マイクＭ１の接続数は２つまたは１つに限るものではなく、振動システムの設置状況に合わせて任意の数のマイクＭ１が接続されることとしてもよい。 Further, in the above-described embodiment and modification, 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. However, the vibration system is not limited to these, and may be configured not to provide information in an interactive manner. Further, 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.
　また、上述した実施例及び変形例では、振動子１１を１つ備えた振動システム１，２が例示されている。しかしながら、振動システムはこれらに限るものではなく、振動システムの設置状況に合わせて任意の数の振動子を備えることとしてもよい。 Further, in the above-described examples and modifications, vibration systems 1 and 2 provided with one vibrator 11 are exemplified. However, 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.
　また、上述した実施例では、サーバ装置ＳＶ１における音質パラメータや音量パラメータの算出結果を取得するパラメータ取得部１２４が例示されている。更に、上述した変形例では、音質パラメータや音量パラメータを自ら算出するパラメータ取得部２２４が例示されている。しかしながら、パラメータ取得部はこれらに限るものではなく、音信号及び集音結果に基づいて各種パラメータを取得するものであれば、その具体的な取得態様を問うものではない。ただし、サーバ装置ＳＶ１から音質パラメータや音量パラメータを取得する構成とすることで、汎用性の高いシステムを構築することができる点は上述した通りである。また、音質パラメータや音量パラメータを自ら算出する構成とすることで、システム構成を簡略化してコスト等を低減することができる点も上述した通りである。 Further, in the above-described embodiment, 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. Further, in the above-described modification, the parameter acquisition unit 224 that calculates the sound quality parameter and the volume parameter by itself is exemplified. However, 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. However, as described above, 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.
　また、上述した実施例及び変形例では、音量条件が満たされた場合の放音時集音結果のみを集音結果記憶部１２３に記憶させる振動システム１，２が例示されている。しかしながら、振動システムはこれに限るものではなく、上記のような記憶を行わないこととしてもよい。ただし、音量条件が満たされた場合の放音時集音結果の記憶を行うことで、プライバシーを保護しつつも、例えばその記憶内容を後日のメンテナンス等に資することができる点も上述した通りである。 Further, in the above-described examples and modifications, 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. However, the vibration system is not limited to this, and the above-mentioned memory may not be performed. However, as mentioned above, by storing the sound collection result at the time of sound emission when the volume condition is satisfied, for example, the stored content can be contributed to maintenance at a later date while protecting privacy. be.
　また、上述した実施例及び変形例では、音量条件が満たされた場合に、振動子１１に、音質パラメータの取得用に音信号に基づく音を放射させて音質パラメータの取得を行う振動システム１，２が例示されている。しかしながら、振動システムはこれに限るものではなく、例えば、音量条件が満たされた場合に、案内音声等の音の放射を待って、そのときの音信号及び放音時集音結果に基づいて音質パラメータを取得することとしてもよい。ただし、音質パラメータの取得用に音を放射させることで、音質パラメータの取得に適した明瞭な放音時集音結果の取得が可能となり、取得される音質パラメータの精度を向上させることができる点も上述した通りである。 Further, in the above-described embodiment and modification, 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. However, 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. However, 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.
　また、上述した実施例及び変形例では、音量条件が満たされた場合に音質パラメータを取得し、音量条件とは無関係に音量パラメータを取得する振動システム１，２が例示されている。しかしながら、振動システムはこれに限るものではなく、例えば音量パラメータは取得しないこととしてもよく、あるいは、音量パラメータについても音質パラメータと同様に音量条件が満たされた場合に取得することとしてもよい。ただし、音質パラメータと音量パラメータとで上記のように取得を切り分けることで、音質パラメータについてはプライバシー保護が図られ、音量パラメータについては頻繁に取得して音を良好に調整することができる点も上述した通りである。 Further, in the above-described examples and modifications, 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. However, 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. However, by separating the acquisition between the sound quality parameter and the volume parameter as described above, 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.
　また、上述した実施例及び変形例では、時間条件と音量条件とが満たされた場合に音質パラメータを取得する振動システム１，２が例示されている。しかしながら、振動システムはこれに限るものではなく、音量条件が満たされた場合にのみ音質パラメータを取得することとしてもよい。ただし、時間条件を加味することで、プライバシーを一層保護しつつ音を調整することができる点も上述した通りである。尚、時間条件を加味するに当たっては、時間条件と音量条件との少なくとも一方が満たされた場合に取得が実行されるように構成すればよく、時間条件のみ又は音量条件のみに基づいて取得を実行することとしてもよい。 Further, in the above-described examples and modifications, vibration systems 1 and 2 that acquire sound quality parameters when the time condition and the volume condition are satisfied are exemplified. However, the vibration system is not limited to this, and the sound quality parameter may be acquired only when the volume condition is satisfied. However, as described above, the sound can be adjusted while further protecting privacy by adding the time condition. In addition, when 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.
　１，２　　振動システム
　１１　　　振動子
　１２，２２　　駆動ユニット
　１１１　　振動アクチュエータ
　１１２　　信号電線
　１１３　　貼付部
　１２１　　集音結果取得部
　１２２　　制御部
　１２３　　集音結果記憶部
　１２４，２２４　　パラメータ取得部
　１２５　　パラメータ記憶部
　１２６　　音信号生成部
　１２７　　調整部
　Ａ１　　　バス停留所の案内標識
　Ａ２　　　公園等の案内標識
　Ａ３　　　Ａ型スタンド看板
　Ａ４　　　案内看板
　Ｍ１　　　マイク
　Ｎ１　　　通信ネットワーク
　ＳＶ１　　サーバ装置 1, 2 Vibration system 11 Oscillator 12, 22 Drive unit 111 Vibration actuator 112 Signal wire 113 Attached part 121 Sound collection result acquisition unit 122 Control unit 123 Sound collection result storage unit 124,224 Parameter acquisition unit 125 Parameter storage unit 126 Sound signal Generation unit 127 Adjustment unit A1 Bus stop guide sign A2 Park guide sign A3 A type stand sign A4 Guide sign M1 Microphone N1 Communication network SV1 Server device

Claims (10)

  1. 　貼付対象物に、音信号に基づいた振動を伝達することで音を放射させる振動子と、
    　前記振動子の周辺における音の集音結果を取得する集音結果取得部と、
    　前記振動子が放射させる音を調整するための調整パラメータを、前記音信号及び前記集音結果取得部で取得された前記集音結果に基づいて取得するパラメータ取得部と、
    　前記調整パラメータを用いて前記振動子が放射させる音を調整する調整部と、
    　前記集音結果における、前記音信号に基づく音以外の背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされた場合の、前記音信号、及び当該音信号に基づく音を含む放音時集音結果に基づいて、前記パラメータ取得部に前記調整パラメータの取得を実行させる制御部と、
    を備えたことを特徴とする振動システム。     A vibrator that radiates sound by transmitting vibration based on a sound signal to the object to be attached,
    A sound collection result acquisition unit that acquires a sound collection result around the vibrator, and a sound collection result acquisition unit.
    A parameter acquisition unit that 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, and a parameter acquisition unit.
    An adjustment unit that adjusts the sound emitted by the vibrator using the adjustment parameters,
    The sound signal and the sound based on the sound signal 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 is equal to or lower than the predetermined level for a predetermined time is satisfied. A control unit that causes the parameter acquisition unit to acquire the adjustment parameter based on the sound collection result at the time of sound emission including the sound.
    A vibration system characterized by being equipped with.
  2. 　前記パラメータ取得部が、前記音信号及び前記集音結果に基づく算出処理を行うことで前記調整パラメータを取得することを特徴とする請求項１に記載の振動システム。 The vibration system according to claim 1, wherein the parameter acquisition unit acquires the adjustment parameter by performing a calculation process based on the sound signal and the sound collection result.
  3. 　所定の通信ネットワークに接続されるサーバ装置において、前記音信号及び前記集音結果に基づく前記調整パラメータの算出処理が実行され、
    　前記パラメータ取得部が、前記通信ネットワークを介して前記サーバ装置に前記音信号及び前記集音結果を送り、当該サーバ装置での算出結果を、前記通信ネットワークを介して受け取ることで前記調整パラメータを取得することを特徴とする請求項１に記載の振動システム。     In the server device connected to the predetermined communication network, the calculation process of the adjustment parameter based on the sound signal and the sound collection result is executed.
    The parameter acquisition unit acquires the adjustment parameter by sending the sound signal and the sound collection result to the server device via the communication network and receiving the calculation result by the server device via the communication network. The vibration system according to claim 1, wherein the vibration system is used.
  4. 　前記集音結果取得部で取得された前記集音結果を記憶する集音結果記憶部を、更に備え、
    　前記制御部は、前記音量条件が満たされた場合の前記放音時集音結果のみを前記集音結果記憶部に記憶させ、前記音信号、及び、前記集音結果記憶部に記憶させた前記放音時集音結果に基づいて前記調整パラメータの取得を実行させることを特徴とする請求項１～３のうち何れか一項に記載の振動システム。     A sound collection result storage unit for storing the sound collection result acquired by the sound collection result acquisition unit is further provided.
    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. The vibration system according to any one of claims 1 to 3, wherein the acquisition of the adjustment parameter is executed based on the sound collection result at the time of sound emission.
  5. 　前記制御部が、前記音量条件が満たされた場合に、前記振動子に、前記調整パラメータの取得用に前記音信号に基づく音を放射させるとともに、前記音信号及び前記放音時集音結果に基づいて前記調整パラメータの取得を実行させることを特徴とする請求項１～４のうち何れか一項に記載の振動システム。 When the volume condition is satisfied, the control unit causes the vibrator to emit a sound based on the sound signal for acquisition of the adjustment parameter, and also produces the sound signal and the sound collection result at the time of sound emission. The vibration system according to any one of claims 1 to 4, wherein the acquisition of the adjustment parameter is executed based on the above.
  6. 　前記パラメータ取得部が、前記振動子が放射させる音の音質を調整するための音質パラメータを前記調整パラメータとして取得するとともに、前記振動子が放射させる音の音量を調整するための音量パラメータを、前記音信号、前記振動子が音を放射させていないときの集音結果、及び前記放音時集音結果に基づいて取得するものであり、
    　前記制御部が、前記音量条件が満たされた場合の前記音信号及び前記放音時集音結果に基づいて前記音質パラメータの取得を実行させるとともに、前記音量条件とは無関係に、前記パラメータ取得部に前記音量パラメータの取得を実行させることを特徴とする請求項１～５のうち何れか一項に記載の振動システム。     The parameter acquisition unit acquires a sound quality parameter for adjusting the sound quality of the sound radiated by the vibrator as the adjustment parameter, and obtains a volume parameter for adjusting the volume of the sound radiated by the vibrator. It is acquired based on the sound signal, the sound collection result when the vibrator does not emit sound, and the sound collection result when the sound is emitted.
    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 is independent of the volume condition. The vibration system according to any one of claims 1 to 5, wherein the acquisition of the volume parameter is executed.
  7. 　前記制御部が、前記音量条件が満たされた場合の前記音信号及び前記放音時集音結果に替えて、予め定められた時間帯が到来しているという時間条件と前記音量条件との少なくとも一方が満たされた場合の前記音信号及び前記放音時集音結果に基づいて、前記パラメータ取得部に前記調整パラメータの取得を実行させることを特徴とする請求項１～６のうち何れか一項に記載の振動システム。 At least the time condition and the volume condition that a predetermined time zone has arrived instead of the sound signal and the sound collection result at the time of sound emission when the volume condition is satisfied by the control unit. Any one of claims 1 to 6, wherein the parameter acquisition unit acquires the adjustment parameter based on the sound signal when one of them is satisfied and the sound collection result at the time of sound emission. The vibration system described in the section.
  8. 　貼付対象物に、音信号に基づいた振動を伝達することで音を放射させる振動子の周辺における音の集音結果を取得する集音結果取得工程と、
    　前記振動子が放射させる音を調整するための調整パラメータを、前記音信号及び前記集音結果取得工程で取得された集音結果に基づいて取得するパラメータ取得工程と、
    　前記調整パラメータを用いて前記振動子が放射させる音を調整する調整工程と、
    　前記集音結果における前記音信号に基づく音以外の背景音の音量が所定時間に亘って所定レベル以下となる音量条件が満たされた場合の、前記音信号、及び当該音信号に基づく音を含む放音時集音結果に基づいて、前記パラメータ取得工程による前記調整パラメータの取得を実行させる制御工程と、
    を備えたことを特徴とする振動方法。     The sound collection result acquisition process for acquiring the sound collection result around the vibrator that radiates sound by transmitting vibration based on the sound signal to the object to be attached, and the sound collection result acquisition process.
    A parameter acquisition 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, and a parameter acquisition step.
    An adjustment step that adjusts the sound emitted by the vibrator using the adjustment parameters, and
    Includes the sound signal and the sound based on the sound signal 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 is equal to or lower than the predetermined level for a predetermined time is satisfied. A control step of executing the acquisition of the adjustment parameter by the parameter acquisition step based on the sound collection result at the time of sound emission, and a control step of executing the acquisition of the adjustment parameter.
    A vibration method characterized by being equipped with.
  9. 　請求項８に記載の振動方法を、コンピュータにより実行させることを特徴とする振動プログラム。 A vibration program characterized in that the vibration method according to claim 8 is executed by a computer.
  10. 　請求項９に記載の振動プログラムを記憶したことを特徴とする記憶媒体。 A storage medium characterized in that the vibration program according to claim 9 is stored.
PCT/JP2021/000982 2020-03-26 2021-01-14 Vibration system, vibration method, vibration program, and storage medium WO2021192516A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020055232 2020-03-26
JP2020-055232 2020-03-26

Publications (1)

Publication Number Publication Date
WO2021192516A1 true WO2021192516A1 (en) 2021-09-30

Family

ID=77891292

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/000982 WO2021192516A1 (en) 2020-03-26 2021-01-14 Vibration system, vibration method, vibration program, and storage medium

Country Status (1)

Country Link
WO (1) WO2021192516A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11331969A (en) * 1998-05-14 1999-11-30 Oosenteikku:Kk Panel speaker for display device
JP2013009236A (en) * 2011-06-27 2013-01-10 Kddi Corp Portable terminal device, and sound-adjustment method and program therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11331969A (en) * 1998-05-14 1999-11-30 Oosenteikku:Kk Panel speaker for display device
JP2013009236A (en) * 2011-06-27 2013-01-10 Kddi Corp Portable terminal device, and sound-adjustment method and program therefor

Similar Documents

Publication Publication Date Title
JP5488128B2 (en) Signal processing device
US20080085019A1 (en) Display Device Comprising a Panel Acoustic Transducer, and Transparent Panel Acoustic Transducer
EP1775988A1 (en) Speaker system, mobile terminal device, and electronic device
TW498698B (en) Loudspeaker having an acoustic panel and an electrical driver
AU4520599A (en) Resonant panel-form loudspeaker
EA004974B1 (en) Acoustic device
JP5774635B2 (en) Audio equipment and method of using the same
DK0847674T3 (en) Musical instruments incorporating speakers
EA199800250A1 (en) LOUDSPEAKER WITH SOUND RADIATING PANEL RADIATING ELEMENT
RU2427100C2 (en) Flat loudspeaker and method of setting up oscillation mode of oscillatory system
WO2021192516A1 (en) Vibration system, vibration method, vibration program, and storage medium
WO2021192517A1 (en) Vibration system, vibration method, vibration program, and storage medium
JP7205495B2 (en) display and signal generator
JP6174409B2 (en) Measuring system
US8611576B2 (en) Adaptive noise generating device
JP2021158457A (en) Vibration system, vibration method, vibration program, and storage medium
JP5176757B2 (en) Floor impact sound experience device
JP2021158456A (en) Vibration system, vibration method, vibration program, and storage medium
US11176916B2 (en) Keyboard device and electronic musical instrument
JP2007053610A (en) Flat panel speaker
US20220095054A1 (en) Sound output apparatus and sound output method
EP2881938A1 (en) Sound field support device and sound field support system
CN112532901A (en) Display device and terminal
WO2001072086A3 (en) Bending wave panel - form loudspeakers
JP2002204492A (en) Speaker system with super-directivity

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21775469

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21775469

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP