WO2018101341A1 - Dispositif de traitement d'informations, procédé de reproduction de son externe, programme et structure de données - Google Patents

Dispositif de traitement d'informations, procédé de reproduction de son externe, programme et structure de données Download PDF

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Publication number
WO2018101341A1
WO2018101341A1 PCT/JP2017/042843 JP2017042843W WO2018101341A1 WO 2018101341 A1 WO2018101341 A1 WO 2018101341A1 JP 2017042843 W JP2017042843 W JP 2017042843W WO 2018101341 A1 WO2018101341 A1 WO 2018101341A1
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WO
WIPO (PCT)
Prior art keywords
sound
mode
external sound
playback
information processing
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Application number
PCT/JP2017/042843
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English (en)
Japanese (ja)
Inventor
洋人 河内
昭光 藤吉
洋一 奥山
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.)
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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
Priority to JP2018554201A priority Critical patent/JP6799615B2/ja
Publication of WO2018101341A1 publication Critical patent/WO2018101341A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • 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

Definitions

  • the present invention relates to an information processing apparatus, an external sound reproducing method, a program, and a data structure.
  • Patent Document 1 the type of sound to be notified in the vehicle is stored in the storage unit of the in-vehicle device, and the type of sound collected from the outside of the vehicle is stored in the storage unit.
  • a technique for controlling whether or not to notify the collected sound in the vehicle based on whether or not they match is disclosed.
  • sounds generated outside a moving body such as a vehicle.
  • sounds that are preferably notified promptly to the person in the car for example, sounds that affect the driving operation, and sounds that are preferably conveyed naturally to the person in the car without feeling uncomfortable, for example, Some sounds don't exist.
  • a technology that makes it possible to convey the sound to a person in the vehicle by a method suitable for each sound generated outside the moving body, for example, driving assistance by conveying it to the driver One example is to provide technology that can be communicated to the driver to contribute to the vehicle.
  • the invention described in claim 1 A first reproduction mode in which the external sound gradually fades in at the start of reproduction of the external sound generated outside the moving body, and a second reproduction mode in which the external sound fades in faster than the first reproduction mode.
  • a mode selection unit for selecting one of the playback modes;
  • a speaker control unit that reproduces the external sound collected by the sound collection device from the indoor speaker of the moving body at a fade-in speed of the reproduction mode selected by the mode selection unit; Is an information processing apparatus.
  • the invention according to claim 9 is: Computer A first reproduction mode in which the external sound gradually fades in at the start of reproduction of the external sound generated outside the moving body, and a second reproduction mode in which the external sound fades in faster than the first reproduction mode. Selecting one of the playback modes; Reproducing the external sound collected by the sound collecting device from the indoor speaker of the moving body at the fade-in speed of the selected reproduction mode; Is an external sound reproducing method.
  • the invention according to claim 10 is: Computer A first reproduction mode in which the external sound gradually fades in at the start of reproduction of the external sound generated outside the moving body, and a second reproduction mode in which the external sound fades in faster than the first reproduction mode.
  • the invention according to claim 11 A data structure of map data, Position information on the map data; Reproduction mode information indicating a reproduction mode when reproducing the external sound collected by the sound collection device by the indoor speaker of the moving body, set for each position information; Is a data structure.
  • each block in the block diagram represents a functional unit configuration, not a hardware unit configuration.
  • FIG. 1 is a block diagram conceptually showing the functional configuration of the information processing apparatus 10 in the first embodiment.
  • the information processing device 10 is an external device that can be attached to the inside or the outside of a moving body.
  • the information processing apparatus 10 may be an apparatus incorporated in a moving body such as an ECU (Electronic Control Unit).
  • the information processing apparatus 10 may be a portable terminal (for example, a smartphone or a tablet terminal) in which an application that realizes each function described below is installed.
  • the information processing apparatus 10 includes a mode selection unit 12 and a speaker control unit 14.
  • a moving body is not limited to a vehicle.
  • the mode selection unit 12 selects one of a plurality of playback modes related to the external sound of the vehicle.
  • the plurality of playback modes have different fade-in speeds at the start of playback of the external sound of the vehicle, and include at least a first playback mode and a second playback mode.
  • the fade-in speed means, for example, the time (speed) until a certain specified gain value is reached.
  • the prescribed gain value can be defined based on, for example, an average audible range of a person.
  • the first reproduction mode is a reproduction mode in which the external sound fades in at the first speed when the reproduction of the external sound of the vehicle is started.
  • the second playback mode is a playback mode in which the external sound is faded in at a second speed higher than the first speed described above.
  • the mode selection unit 12 can select at least one of the first reproduction mode and the second reproduction mode.
  • FIG. 2 is a diagram illustrating the difference between the fade-in speed in the first playback mode and the fade-in speed in the second playback mode.
  • the vertical axis in FIG. 2 indicates the gain value of the sound reproduced from the speaker.
  • the horizontal axis of FIG. 2 represents the time axis.
  • the gain value gradually increases in the first reproduction mode.
  • control is performed so that the sound outside the vehicle is gradually heard from the indoor speaker, so that the uncomfortable feeling given to the vehicle occupant by the sound outside the vehicle can be reduced.
  • the time until the same gain value as in the first playback mode is reached is faster than in the first playback mode. That is, in the second playback mode, control is performed so that the outside sound can be heard suddenly from the indoor speaker, so that the vehicle occupant can pay attention to the outside sound.
  • the speaker control unit 14 reproduces the vehicle exterior sound collected by the sound collection device (not shown) from the vehicle interior speaker (not shown) at the fade-in speed of the reproduction mode selected by the mode selection unit 12.
  • the sound collecting device is a device including a microphone or a microphone array that generates and outputs an electrical signal corresponding to the collected sound.
  • the sound collection device is provided on the outer periphery of the vehicle and can collect sound (external sound) generated outside the vehicle.
  • the installation position and number of sound collectors are not particularly limited.
  • the sound collection device can transmit the collected sound to the information processing device 10 by wireless connection or wired connection.
  • the sound collecting device may be configured integrally with the information processing device 10 as one device.
  • the indoor speaker is a speaker device built in the vehicle or a commercially available external speaker.
  • the indoor speaker may be, for example, a speaker that can communicate with the information processing apparatus 10 in a wired manner, or may be a speaker that can wirelessly communicate with the information processing apparatus 10.
  • the mode selection unit 12 selects at least two playback modes having different fade-in speeds. Further, in the present embodiment, the vehicle exterior sound is output from the vehicle interior speaker at a fade-in speed corresponding to the playback mode selected by the mode selection unit 12.
  • the sound can be transmitted to the person in the vehicle by a method suitable for each sound generated outside the vehicle.
  • environmental sounds such as the sound of waves that can be collected while driving on a seaside road are output from the indoor speakers in the first playback mode that gradually fades in. And can enhance the effect of raising and relaxing the mood.
  • the sound outside the vehicle is output from the indoor speaker at a faster fade-in speed than in the first playback mode, thereby giving a sense of incongruity to the person in the car and calling attention. Can be increased.
  • Each functional component of the information processing apparatus 10 may be realized by hardware (for example, a hard-wired electronic circuit) that realizes each functional component, or a combination of hardware and software (for example: It may be realized by a combination of an electronic circuit and a program for controlling it).
  • hardware for example, a hard-wired electronic circuit
  • software for example: It may be realized by a combination of an electronic circuit and a program for controlling it.
  • FIG. 3 is a diagram illustrating a hardware configuration of the information processing apparatus 10.
  • the information processing apparatus 10 includes a bus 102, a processor 104, a memory 106, a storage device 108, an input / output interface 110, and a network interface 112.
  • the bus 102 is a data transmission path through which the processor 104, the memory 106, the storage device 108, the input / output interface 110, and the network interface 112 transmit / receive data to / from each other.
  • the method of connecting the processors 104 and the like is not limited to bus connection.
  • the processor 104 is an arithmetic processing device realized using a microprocessor or the like.
  • the memory 106 is a memory realized using a RAM (Random Access Memory) or the like.
  • the storage device 108 is a storage device realized using a ROM (Read Only Memory), a flash memory, or the like.
  • the input / output interface 110 is an interface for connecting the information processing apparatus 10 to an external apparatus.
  • a GPS (Global Positioning System) module 1101 for acquiring information indicating the current position of the vehicle is connected to the input / output interface 110.
  • the information processing apparatus 10 can also acquire the position information of the surrounding base station via the network interface 112 and estimate the current position of the vehicle using the position information of the surrounding base station.
  • the information processing apparatus 10 can also calculate the estimated position of the host vehicle using Bayesian estimation such as a Kalman filter or a particle filter. In such a case, the GPS module 1101 may not be connected to the input / output interface 110.
  • the input / output interface 110 is connected to a speaker device 1102 that outputs sound into the vehicle.
  • the speaker device 1102 may be connected via the network interface 112 if the device is a device that enables short-range wireless communication such as Bluetooth (registered trademark), for example.
  • the switch 1103 may be connected to the input / output interface 110.
  • the switch 1103 is provided for accepting an operation for selecting a reproduction mode by a vehicle occupant.
  • the switch 1103 may be a physical switch having a physical switching mechanism, or may be a software switch realized by a touch panel.
  • the network interface 112 is an interface for connecting the information processing apparatus 10 to a communication network.
  • the information processing apparatus 10 may have a plurality of network interfaces 112.
  • the information processing apparatus 10 includes a network interface 112 for connecting to a CAN communication network and a network interface 112 that supports a short-range wireless communication standard (for example, Bluetooth (registered trademark)).
  • a short-range wireless communication standard for example, Bluetooth (registered trademark)
  • the information processing apparatus 10 can communicate with the sound collection device 20 provided on the outer peripheral portion of the vehicle by short-range wireless, and can acquire the data of the outside sound collected by the sound collection device 20.
  • the information processing apparatus 10 indicates the operation of the vehicle (for example, the moving speed of the vehicle, the steering angle of the steering, etc.) that can be used for the position estimation algorithm for the own vehicle using the Kalman filter or the like via the CAN communication network. Information can also be obtained.
  • the vehicle for example, the moving speed of the vehicle, the steering angle of the steering, etc.
  • the storage device 108 stores a program module for realizing each functional component of the information processing apparatus 10.
  • the processor 104 reads out the program module to the memory 106 and executes it, thereby realizing the function of each functional component of the information processing apparatus 10.
  • FIG. 4 is a flowchart illustrating a first operation example of the information processing apparatus 10 according to the first embodiment.
  • the mode selection unit 12 acquires the position information of the host vehicle, and selects either the first playback mode or the second playback mode based on the position information of the host vehicle.
  • the mode selection part 12 acquires the positional information on the own vehicle (S102).
  • the mode selection unit 12 can acquire GPS information obtained from the GPS module 1101 as position information of the host vehicle.
  • the mode selection unit 12 communicates with a surrounding radio base station via a 3G line or an LTE (Long Termination Evolution) line to obtain position information of the radio base station, and uses the position information of the radio base station. Then, the position information of the own vehicle may be estimated.
  • the mode selection unit 12 may calculate the estimated position of the host vehicle based on the position estimation algorithm for the host vehicle using a Kalman filter or the like.
  • the mode selection unit 12 selects an external sound reproduction mode based on the position information of the host vehicle acquired in S102 (S104).
  • the mode selection unit 12 indicates whether or not the position information of the host vehicle acquired in the process of S102 indicates a position corresponding to the first specific area, or indicates a position corresponding to the second specific area. Whether or not, and the playback mode is selected according to the determination result.
  • a 1st specific area is an area where the importance of the atmosphere which the external sound of a vehicle gives is higher than other areas.
  • Specific examples of the first specific area include, for example, a sightseeing spot, the sea, or the periphery of a forest.
  • the second specific area is an area where the degree of attention required of the driver of the vehicle is higher than other areas. Specific examples of the second specific area include the vicinity of a point where accidents frequently occur, the vicinity of a point with poor visibility, and the vicinity of a school facility or a park.
  • the mode selection unit 12 selects the first reproduction mode in which the external sound gradually fades in when the position information of the host vehicle acquired in the process of S102 indicates the position corresponding to the first specific area. Further, when the position information of the host vehicle acquired in the process of S102 indicates a position corresponding to the second specific area, the mode selection unit 12 causes the external sound to fade in faster than in the first playback mode. Select the playback mode.
  • the mode selection unit 12 can determine the playback mode to be selected with reference to a table as shown in FIG. 5, for example.
  • FIG. 5 is a diagram illustrating an example of a table that stores a correspondence relationship between position information and a reproduction mode.
  • the table shown in FIG. 5 stores information for identifying the playback mode in association with area information including one or more pieces of position information.
  • the mode selection unit 12 identifies a row (record) that stores area information of an area including the position indicated by the position information of the host vehicle acquired in S102, and “playback mode” of the identified record.
  • the reproduction mode identification information stored in the column is read out.
  • the mode selection unit 12 can determine the playback mode indicated by the read playback mode identification information as the playback mode to be selected.
  • the mode selection unit 12 has acquired the position information “(x 1 , y 2 )” in the process of S102.
  • the mode selection unit 12 can specify the “first playback mode” as the playback mode to be selected with reference to the table of FIG.
  • FIG. 5 is merely an example, and the format of the table is not limited to the example of FIG.
  • the mode selection unit 12 refers to the table based on the position information of the host vehicle acquired in S102, and acquires the identification information of the first specific area or the identification information of the second specific area.
  • the mode selection part 12 discriminate
  • the mode selection unit 12 selects the first reproduction mode when acquiring the identification information of the first specific area, and selects the second reproduction mode when acquiring the identification information of the second specific area. Select.
  • the mode selection unit 12 is configured to select an arbitrary reproduction mode when the position information of the host vehicle acquired in the process of S102 indicates a position that does not correspond to either the first specific area or the second specific area. May be. For example, either the first playback mode or the second playback mode is set as a default playback mode in the mode selection unit 12 in advance, and the mode selection unit 12 determines the position of the host vehicle acquired in the process of S102. When the information indicates a position that does not correspond to either the first specific area or the second specific area, a preset default playback mode may be selected.
  • the speaker control unit 14 outputs the outside sound collected by the sound collection device 20 from the indoor speaker at the fade-in speed of the reproduction mode selected in S104 (S106).
  • the speaker control unit 14 may control the timing of starting the reproduction of the external sound collected by the sound collecting device 20 based on the position information of the vehicle (S108). Specifically, the speaker control unit 14 collects sound when the position information of the vehicle indicates the vicinity of a sightseeing spot, the starting point of a road extending along the seaside or forest, the vicinity of a point where accidents frequently occur, or a point where visibility is poor. You may be comprised so that the reproduction
  • the outside sound collected by the sound collecting device 20 is reproduced from the indoor speaker.
  • the outside sound collected by the sound collecting device 20 is reproduced from the indoor speaker.
  • FIG. 6 is a flowchart illustrating a second operation example of the information processing apparatus 10 according to the first embodiment.
  • the mode selection unit 12 includes a switch 1103 that accepts an external sound reproduction mode selection operation, and the first reproduction mode or the second reproduction mode is selected based on the selection operation accepted by the switch 1103. Select one of the playback modes.
  • the mode selection unit 12 accepts a playback mode selection operation via the switch 1103 (S202). Then, the mode selection unit 12 selects a playback mode corresponding to the selection operation received via the switch 1103 (S204). For example, when the switch 1103 includes a switching mechanism such as a so-called push button switch or a slide switch, the mode selection unit 12 identifies the playback mode based on a change in the electrical signal from the switch 1103 due to the switching operation of the switching mechanism. can do. For example, when the switch 1103 is realized by a touch panel, the mode selection unit 12 acquires information indicating a playback mode according to a screen element (software button or the like) selected on the touch panel, and based on the information. A playback mode can be selected.
  • a switching mechanism such as a so-called push button switch or a slide switch
  • the speaker control unit 14 causes the vehicle exterior sound collected by the sound collecting device 20 to be output from the indoor speaker at the fade-in speed in the playback mode selected in S204 (S206). At this time, similarly to the first operation example, the speaker control unit 14 may control the timing for starting the reproduction of the outside sound collected by the sound collecting device 20 based on the position information of the vehicle (S208). . In this case, the information processing apparatus 10 acquires vehicle position information in the background, for example.
  • FIG. 7 is a block diagram conceptually showing the functional configuration of the information processing apparatus 10 in the second embodiment.
  • the information processing apparatus 10 according to the present embodiment further includes a buffer unit 16 and a sound analysis unit 18 in addition to the configuration of the first embodiment.
  • the buffer unit 16 buffers external sound collected by the sound collector 20.
  • the buffer unit 16 can be realized by the memory 106, for example.
  • the sound analysis unit 18 analyzes the sound outside the vehicle buffered in the buffer unit 16.
  • the sound analysis unit 18 can specify at least a generation source (sound source) of the outside sound based on, for example, a result of analyzing a frequency component of the buffered outside sound.
  • the sound analysis unit 18 can use a known sound source separation algorithm and sound source identification algorithm as a method of specifying a sound source.
  • the speaker control unit 14 of the present embodiment determines whether or not a specific sound source is detected based on the analysis result of the sound analysis unit 18.
  • Specific examples of sound generated from a specific sound source are not particularly limited, but include natural environmental sounds such as the sound of waves and chirping of birds, crowd noise around the tourist spot (crowd noise), people talking, and surroundings.
  • the speaker control unit 14 according to the present embodiment starts the reproduction of the sound outside the vehicle according to the timing at which a specific sound source is detected from the analysis result of the sound analysis unit 18.
  • the mode selection unit 12 of the present embodiment selects either the first reproduction mode or the second reproduction mode based on the analysis result of the sound analysis unit 18. Specifically, the mode selection unit 12 of the present embodiment first acquires the analysis result of the type of the sound source of the vehicle outside sound from the sound analysis unit 18. And the mode selection part 12 of this embodiment selects the 1st reproduction
  • the information processing apparatus 10 includes a hardware configuration as illustrated in FIG. 3 as in the first embodiment.
  • the storage device 108 according to the present embodiment further stores program modules that realize the functions of the buffer unit 16 and the sound analysis unit 18, and the processor 104 executes these program modules, whereby the buffer unit 16 and the sound analysis are performed.
  • the function of the unit 18 is realized.
  • the processor 104 executes a program module that realizes the function of the buffer unit 16 and buffers sound data acquired from the sound collecting device 20 in, for example, the memory 106.
  • the processor 104 executes a program module that implements the function of the sound analysis unit 18, reads sound data buffered in the memory 106 and the like, and uses the analysis algorithm to output various analysis results from the sound data. obtain.
  • FIG. 8 is a flowchart illustrating an operation example of the information processing apparatus 10 according to the second embodiment.
  • the buffer unit 16 acquires external sound data collected by the sound collection device 20 (S302). Further, the buffer unit 16 buffers the external sound data acquired in S302 in a buffer area such as the memory 106 (S304).
  • the sound analysis unit 18 analyzes the external sound data buffered in the buffer area (S306).
  • the sound analysis unit 18 can extract data of sound generated from each sound source based on the difference in sound detection time in each channel using, for example, a microphone array. Then, the sound analysis unit 18 compares the sound feature amount obtained by analyzing the extracted sound data with a feature value for each sound source (for example, FIG. 9) prepared in advance in the storage device 108 or the like. Thus, the sound source of each sound can be specified.
  • FIG. 9 is a diagram showing an example of a table for storing information for sound source collation.
  • the table illustrated in FIG. 9 stores sound feature amounts in association with identification information of sounds belonging to each sound source category.
  • the sound analysis unit 18 can specify a row (record) storing a sound feature amount most similar to the sound feature amount obtained by analyzing the extracted sound, using a table as shown in FIG. . Then, the sound analysis unit 18 can acquire information for identifying the category of the sound source stored in the “sound source category” column of the specified row (record).
  • the mode selection unit 12 and the speaker control unit 14 determine whether or not a specific sound source is detected using the analysis result of the sound analysis unit 18 (S308, S310).
  • the mode selection unit 12 selects an external sound reproduction mode based on the analysis result of the sound analysis unit 18. Further, the speaker control unit 14 controls the reproduction timing of the external sound based on the analysis result of the sound analysis unit 18.
  • the mode selection unit 12 and the speaker control unit 14 determine whether a specific environmental sound is detected based on the analysis result of the sound analysis unit 18 (S308).
  • the specific environmental sound is, for example, a natural environmental sound such as a sound of a wave or a chirping of a small bird, a crowd noise around a tourist spot (crowd noise), and the like.
  • the specific environmental sound in the present invention includes sounds that are desired to be heard naturally without giving a sense of incongruity to the passengers of the vehicle in order to obtain an uplifting effect and a relaxing effect.
  • the mode selection unit 12 selects the first reproduction mode in which the external sound is gradually faded in (S312). Then, the speaker control unit 14 reproduces the external sound acquired by the sound collection device 20 from the indoor speaker at the fade-in speed in the first reproduction mode (S316).
  • the mode selection unit 12 determines whether the sound of a person existing around or It is determined whether or not the sound of a vehicle existing around is detected (S310).
  • the mode selection unit 12 When an analysis result of the sound analysis unit 18 detects a human voice or a vehicle sound (S310: YES), the mode selection unit 12 performs the second reproduction to fade in the external sound faster than the first reproduction mode. A mode is selected (S314). Then, the speaker control unit 14 reproduces the external sound acquired by the sound collection device 20 from the indoor speaker at the fade-in speed in the second reproduction mode (S316).
  • the mode selection unit 12 may select a reproduction mode using map data in which reproduction mode setting information is embedded for each position information or each area information instead of the table shown in FIG. .
  • the map data has a data structure in which information on a reproduction mode to be selected when reproducing outside sound from an indoor speaker is embedded for each position information or predetermined area information.
  • the mode selection unit 12 selects the position information of the own vehicle acquired in S102 by using the analysis result obtained by analyzing which position on the map data corresponds to the position information of the own vehicle. Specify the playback mode to be used.
  • the analysis may be performed by an analysis unit (not shown) in the information processing apparatus 10 or may be performed by an external server device (not shown).
  • the playback mode and the playback timing of the external sound are controlled based on the analysis result of the external sound collected by the sound collecting device 20.
  • the external sound to be transmitted to the person in the vehicle can be reproduced from the indoor speaker in the reproduction mode (fade-in speed) suitable for the type of the external sound.
  • the driver can contribute to driving support by listening to the reproduced external sound.

Abstract

L'invention concerne un dispositif de traitement d'informations (10) qui est pourvu d'une unité de sélection de mode (12) et d'une unité de commande de haut-parleur (14). L'unité de sélection de mode (12) sélectionne un mode de reproduction entre un premier mode de reproduction dans lequel un son externe, généré à l'extérieur d'une entité mobile, est fondu à au moins un première vitesse lorsque la reproduction du son externe commence, et un second mode de reproduction dans lequel le son externe est fondu à une seconde vitesse plus rapide que la première vitesse. L'unité de commande de haut-parleur (14) contraint le son externe capté par un dispositif de captage de son à être reproduit par un haut-parleur intérieur de l'entité mobile à une vitesse de fondu du mode de reproduction sélectionné par l'unité de sélection de mode (12).
PCT/JP2017/042843 2016-11-29 2017-11-29 Dispositif de traitement d'informations, procédé de reproduction de son externe, programme et structure de données WO2018101341A1 (fr)

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JP2016-231039 2016-11-29

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305847A (ja) * 1992-04-30 1993-11-19 Suzuki Motor Corp 車両用音量制御システム
WO2007032389A1 (fr) * 2005-09-14 2007-03-22 Pioneer Corporation Dispositif de commande du volume sonore, procede de commande du volume sonore, programme de commande du volume sonore et support d'enregistrement lisible par ordinateur
JP2009051333A (ja) * 2007-08-27 2009-03-12 Nissan Motor Co Ltd 車両用聴覚モニタ装置
JP2011201406A (ja) * 2010-03-25 2011-10-13 Denso It Laboratory Inc 車外音提供装置、車外音提供方法およびプログラム

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3868390B2 (ja) * 2003-04-03 2007-01-17 アルパイン株式会社 ソース切替装置
JP4285371B2 (ja) * 2003-11-14 2009-06-24 株式会社デンソー 音場制御システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305847A (ja) * 1992-04-30 1993-11-19 Suzuki Motor Corp 車両用音量制御システム
WO2007032389A1 (fr) * 2005-09-14 2007-03-22 Pioneer Corporation Dispositif de commande du volume sonore, procede de commande du volume sonore, programme de commande du volume sonore et support d'enregistrement lisible par ordinateur
JP2009051333A (ja) * 2007-08-27 2009-03-12 Nissan Motor Co Ltd 車両用聴覚モニタ装置
JP2011201406A (ja) * 2010-03-25 2011-10-13 Denso It Laboratory Inc 車外音提供装置、車外音提供方法およびプログラム

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