WO2006109390A1 - Dispositif pour la prévention de la réduction du niveau d’excitation, procédé pour la prévention de la réduction du niveau d’excitation, programme pour la prévention de la réduction du niveau d’excitation et support d’enregistrement - Google Patents

Dispositif pour la prévention de la réduction du niveau d’excitation, procédé pour la prévention de la réduction du niveau d’excitation, programme pour la prévention de la réduction du niveau d’excitation et support d’enregistrement Download PDF

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Publication number
WO2006109390A1
WO2006109390A1 PCT/JP2006/305051 JP2006305051W WO2006109390A1 WO 2006109390 A1 WO2006109390 A1 WO 2006109390A1 JP 2006305051 W JP2006305051 W JP 2006305051W WO 2006109390 A1 WO2006109390 A1 WO 2006109390A1
Authority
WO
WIPO (PCT)
Prior art keywords
arousal level
acoustic parameters
decrease
changing
sound
Prior art date
Application number
PCT/JP2006/305051
Other languages
English (en)
Japanese (ja)
Inventor
Masatoshi Yanagidaira
Mitsuo Yasushi
Original Assignee
Pioneer Corporation
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 Pioneer Corporation filed Critical Pioneer Corporation
Publication of WO2006109390A1 publication Critical patent/WO2006109390A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
    • A61M2021/0027—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the hearing sense

Definitions

  • Arousal level lowering prevention apparatus arousal level lowering prevention method, arousal level lowering prevention program, and recording medium
  • the present invention relates to a wakefulness reduction prevention device, a wakefulness fall prevention method, a wakefulness fall prevention program, and a recording medium, and more specifically, a wakefulness level for preventing a decrease in human wakefulness level.
  • the present invention relates to a fall prevention device, a wakefulness fall prevention method, a wakefulness fall prevention program, and a recording medium.
  • FIG. 5 is a diagram showing a configuration of the arousal level lowering prevention apparatus of Patent Document 1. As shown in FIG. As shown in FIG. 5, the device for preventing arousal level reduction in the same document switches between a plurality of different audio devices (radio, cassette deck, CD player) 101, 102, 103 and a plurality of audio devices 101, 102, 103.
  • a plurality of different audio devices radio, cassette deck, CD player
  • the apparatus for preventing arousal level reduction in the same document constitutes a plurality of music sources and is selected. Play intermittently on the selected source.
  • the reason for using multiple music sources is to switch to another medium when there is a preference for songs, when songs contain mild songs, accustomed to songs from the same source, or when it becomes impossible to receive radio etc. This is necessary.
  • Patent Document 1 JP 2002-149348 A
  • the present invention has been made in view of the above problems, and in consideration of the psychoacoustics described above, by changing the position, volume, and sound quality of a sound image during signal reproduction, a low-cost configuration is achieved. And providing a device for preventing a decrease in arousal level, a method for preventing a decrease in arousal level, a program for preventing a decrease in arousal level, and a recording medium. With the goal. Means for solving the problem
  • the present invention provides an audio signal input from a voice or a music source in an arousal level reduction preventing apparatus for preventing a reduction in the level of human arousal level.
  • a plurality of parameter changing means for changing each of the plurality of acoustic parameters, and one of the plurality of acoustic parameters at random or regularly during reproduction of the audio or music source signal 1
  • a plurality of acoustic parameters are selected, and the plurality of parameter changing means includes control means for changing the selected one or more acoustic parameters.
  • the present invention provides a method for preventing a decrease in arousal level for preventing a decrease in a person's arousal level, from among a plurality of acoustic parameters during reproduction of a voice or music source signal, or A parameter selection step of regularly selecting one or more acoustic parameters, and a parameter changing step of changing the selected one or more acoustic parameters with respect to a signal input from an audio or music source. It is characterized by.
  • the present invention provides a computer program for preventing a decrease in arousal level of a computer that causes a computer to prevent a decrease in arousal level from among a plurality of acoustic parameters during reproduction of a voice or music source signal. Or, regularly, a parameter selecting step for selecting one or more acoustic parameters, and a parameter changing step for changing the selected one or more acoustic parameters for a signal input from a voice or music source, It is characterized by having a computer execute.
  • FIG. 1 is a diagram showing a configuration example of a wakefulness reduction preventing device according to the present invention.
  • FIG. 2 is a flowchart for explaining arousal level reduction preventing processing.
  • Fig. 3 is a diagram showing an example of an output waveform of the audio source when the arousal level lowering prevention process is executed.
  • FIG. 4 is a diagram showing a configuration example of a wakefulness reduction preventing device according to another embodiment of the present invention.
  • FIG. 5 is a diagram showing a configuration of a conventional wakefulness reduction preventing device.
  • FIG. 1 is a diagram showing a configuration example of an arousal level lowering prevention apparatus 10 according to the present invention.
  • the arousal level reduction preventing apparatus 10 according to the present invention selects one or a plurality of acoustic parameters randomly or regularly from a plurality of acoustic parameters during reproduction of a signal of a voice or a music source, and selects the acoustic parameters. By changing the parameters, the arousal level of people is reduced with a low-cost configuration Is to prevent.
  • the arousal level lowering prevention apparatus 10 according to the present invention includes a control unit 11, a random time generation unit 12, a left / right balance change unit 13, a volume change unit 14, and a MUTE change unit 15. , An effect changing unit 16, a sound image position changing unit 17, switching switches 18 to 22, and a wakefulness reduction detecting unit 23.
  • the control unit 11 randomly or regularly selects one or a plurality of acoustic parameters from a plurality of acoustic parameters (left and right balance, volume, MUTE, effect, sound image), and the corresponding switching switch 18 to Random time (corresponding to random time) 22 between tl and t5.
  • acoustic parameters left and right balance, volume, MUTE, effect, sound image
  • the corresponding switching switch 18 to Random time (corresponding to random time) 22 between tl and t5.
  • the switch 18 is turned ON only during the random time tl and the left / right balance changing unit 13 is connected.
  • “Volume” is selected, the switch 19 is turned ON for the random time t2 and the volume changing unit 14 is connected.
  • the switch 20 is turned ON for the random time t3 and the MUT change unit 15 is connected.
  • switch 21 When “effect” is selected, switch 21 is turned on only during random time t4, and effect changer 16 is connected.
  • “sound image position” When “sound image position” is selected, the switch 22 is turned ON only during the random time t5 and the sound image position changing unit 17 is connected.
  • the dissatisfaction with the momentary tone being cut off or being played back can be eliminated by applying a fade of around 2 seconds instead of instantaneous switching. desirable. Further, the fade time may be changed.
  • a combination and order to be selected from a plurality of parameters may be determined and repeated.
  • the random time generation unit 12 generates random times tl, t2, t3, t4, and t5 at a predetermined cycle and outputs them to the control unit 11.
  • the random time tl, t2, t3, t4, t5 should be about 4 to 30 seconds. This is because if the time is too long, you get tired, and if it is too short, you get tired.
  • the switching switches 18 to 22 are signals of the left / right balance changing unit 13, the volume changing unit 14, the MUTE changing unit 15, the effect changing unit 16, and the sound image position changing unit 17 in accordance with the switching control signal from the control unit 11, respectively. Connect to the line ⁇ Disconnect.
  • the left / right balance changing unit 13 changes the left / right balance of the audio signal input from the music source.
  • the volume changing unit 14 changes the volume of the audio signal input from the music source. .
  • the MUTE changing unit 15 covers MUTE in the audio signal input from the music source. It should be noted that in order to eliminate the dissatisfaction that the music cannot be heard at all when the mute is turned on, it is desirable to leave a sound volume that can be heard with no sound when the mute is turned on.
  • the effect changing unit 16 changes the effect (tone) of the audio signal input from the music source.
  • the sound image position changing unit 17 changes the sound image position of the audio signal input from the music source.
  • the sound image position is changed based on the phase difference (time difference) and intensity difference of the sound reaching the left and right ears. Decreasing the left channel level of a song and delaying the time slightly will allow the sound to be heard from the right. In this way, by controlling the time difference and level between the left and right sounds, it is possible to change the position of the sound image so that it can be freely changed back and forth, left and right, and up and down. Furthermore, a more effective sound image localization can be obtained by arranging the speakers near the ears, for example, on both sides of the headrest of the driver's seat.
  • Each of these changing sections changes each parameter to continuous or non-continuous while being turned on by the changeover switch.
  • the arousal level reduction detection unit 23 detects physiological data of the subject, detects whether or not the subject is in the arousal reduced state, and outputs a wakefulness level signal (for example, the wakefulness level decreased state "1 ”, The arousal level maintenance state“ 0 ”) is output to the control unit 11.
  • a wakefulness level signal for example, the wakefulness level decreased state "1 ”.
  • the arousal level maintenance state“ 0 ” is output to the control unit 11.
  • Methods for detecting whether or not the subject is in a state of reduced arousal level using the subject's physiological data are disclosed in, for example, JP-A-2004-344269, JP-A-8-140949, JP-A-2003-. Since it is known in Japanese Patent No. 61939, etc., its detailed description is omitted.
  • FIG. 2 is a flowchart for explaining the arousal level lowering prevention process of the control unit 11.
  • control unit 11 executes the arousal level reduction process when the arousal level state signal input from the arousal level decrease detection unit 23 indicates the arousal level decreased state.
  • the random time generation unit 12 generates random times tl, t2, t3, t4, and t5 and outputs them to the control unit 11 (step Sl).
  • the control unit 11 randomly determines one or more acoustic parameters to be changed from among a plurality of acoustic parameters (left and right balance, volume, MUTE, effect, sound image position) (step S2).
  • Control unit 11 changes the “left / right balance” In this case, the switch 18 is turned ON for the random time tl, the left / right balance changing unit 13 is connected to the signal line, and the left / right balance of the audio signal input from the music source is changed for tl (step S3).
  • control unit 11 sets the switch 19 to “N” only for t2, connects the volume change unit 14 to the signal line, and adjusts the volume of the audio signal input from the music source. Is changed for t2 (step S4).
  • control unit 11 turns ON the switching switch 20 only for the random time t3, connects the MUTE changing unit 15 to the signal line, and outputs the audio signal input from the music source between t3. Mute the sound (Step S5).
  • control unit 11 turns on the switch 21 for t4, connects the effect change unit 16 to the signal line, and adjusts the effect of the audio signal input from the music source. Change for t4 (step S6).
  • control unit 11 connects the sound image position changing unit 17 to the signal line by inputting the switch 22 for the random time t5, and is input from the sound source. Change the sound image position of the audio signal for t5 (step S7).
  • the control unit 11 waits for one randomly selected time among the change times (tl, t2, t3, t4, t5) of the selected acoustic parameter (step S8), and then the control unit 11 Then, it is determined whether or not the wakefulness level lowering prevention process can be terminated (step S9), and if the wakefulness level signal input from the wakefulness level lowering detection unit 23 is the wakefulness level maintaining state, If the wakefulness state signal is in the state of reduced wakefulness, the process returns to step S1 and the same processing is performed until the wakefulness state signal becomes the state of maintaining wakefulness. Repeatedly.
  • the standby time in step S8 can be set to select the maximum value from tl to t5, or it can be set to select the minimum value.
  • FIG. 3 is a diagram showing an example of an output waveform of the audio source when the arousal level lowering prevention process is executed.
  • the left and right balance, volume, and mute are acoustic parameters. Show the R and L output waveforms of the music source when changed.
  • a plurality of parameter changing means for changing each of a plurality of acoustic parameters with respect to a signal input from a sound or music source (a left-right balance changing unit) 13, volume change unit 14, MUTE change unit 15, effect change unit 16, sound image position change unit 17) and during playback of the audio signal of the audio source, randomly or regularly from multiple acoustic parameters It is possible to select one or a plurality of acoustic parameters and to control a plurality of parameter changing means to change the selected one or a plurality of acoustic parameters, so that it is not necessary to prepare a special music source or equipment. With a low-cost configuration, it is possible to suppress drowsiness that does not cause discomfort to the user, that is, to prevent a reduction in arousal level.
  • the change time of the acoustic parameter is set to a random time, the effect of preventing the decrease in the arousal level is weakened by getting used to the change of the music. A decrease can be prevented.
  • multiple acoustic parameters are left / right balance, volume, MUTE, effect, and sound image position, parameters that are effective in reducing arousal level can be used in terms of acoustic psychology.
  • the random time is about 4 seconds to 30 seconds, it is possible to prevent users from getting bored or tired.
  • the computer 40 shown in the figure includes a CPU (Central Processing Unit) 41 that executes the above-described program, an input device 42 such as a keyboard and a mouse, and an ROM (Read Only Memory) that stores various data. 43, a RAM (Random Access Memory) 44 for storing calculation parameters, a reading device 45 for reading a program from a recording medium 50, and an output device 46 such as a display and a printer.
  • a CPU Central Processing Unit
  • an input device 42 such as a keyboard and a mouse
  • ROM Read Only Memory
  • 43 a RAM (Random Access Memory) 44 for storing calculation parameters
  • a reading device 45 for reading a program from a recording medium 50
  • an output device 46 such as a display and a printer.
  • the CPU 41 reads a program recorded on the recording medium 50 via the reading device 45. Then, the above-described functions are realized by executing the program.
  • Examples of the recording medium 50 include an optical disk, a flexible disk, and a hard disk.
  • the arousal level lowering prevention apparatus, the arousal level lowering prevention method, the arousal level lowering prevention program, and the recording medium according to the present invention are vehicles, ships, etc. It can be used mainly for vehicles such as trains and airplanes, and is particularly useful for car navigation systems, car audio systems, and other in-vehicle computer devices.

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  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Acoustics & Sound (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

L’invention concerne un dispositif pour la prévention de la réduction du niveau d’excitation comprenant une pluralité de moyens de changement de paramètres (une section de changement de balance gauche-droite, une section de changement de volume sonore, une section de changement de silencieux, une section de changement d’effet et une section de changement de position d’image sonore) permettant de changer des paramètres sonores d’un signal sonore injecté depuis une source sonore et une section de commande permettant de sélectionner un ou plusieurs paramètres sonores de manière aléatoire ou régulière parmi les paramètres sonores pendant la reproduction du signal sonore et permettant aux moyens de changement de paramètres de modifier le ou les paramètres sonores sélectionnés. En conséquence, on peut empêcher la réduction du niveau d’excitation grâce à une structure peu onéreuse sans créer d’inconfort pour l’utilisateur.
PCT/JP2006/305051 2005-03-31 2006-03-14 Dispositif pour la prévention de la réduction du niveau d’excitation, procédé pour la prévention de la réduction du niveau d’excitation, programme pour la prévention de la réduction du niveau d’excitation et support d’enregistrement WO2006109390A1 (fr)

Applications Claiming Priority (2)

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JP2005104217 2005-03-31
JP2005-104217 2005-03-31

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WO2006109390A1 true WO2006109390A1 (fr) 2006-10-19

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011517602A (ja) * 2008-04-11 2011-06-16 チャン，ダニエル，ウォンチョル 脳エントレインメント方法およびシステム
WO2012157156A1 (fr) * 2011-05-16 2012-11-22 パナソニック株式会社 Dispositif de maintien d'éveil et procédé de maintien d'éveil
JP2015162837A (ja) * 2014-02-28 2015-09-07 学校法人 中央大学 音補正出力システム及び音補正出力装置
WO2018180523A1 (fr) * 2017-03-29 2018-10-04 ソニー株式会社 Dispositif de traitement d'informations, procédé de traitement d'informations, et corps mobile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08196637A (ja) * 1995-01-24 1996-08-06 Agency Of Ind Science & Technol 覚醒維持装置及び覚醒維持用記録媒体
JP2004254750A (ja) * 2003-02-24 2004-09-16 Nissan Motor Co Ltd カーオーディオシステム
JP2005037649A (ja) * 2003-07-14 2005-02-10 Sony Corp 音響再生装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08196637A (ja) * 1995-01-24 1996-08-06 Agency Of Ind Science & Technol 覚醒維持装置及び覚醒維持用記録媒体
JP2004254750A (ja) * 2003-02-24 2004-09-16 Nissan Motor Co Ltd カーオーディオシステム
JP2005037649A (ja) * 2003-07-14 2005-02-10 Sony Corp 音響再生装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011517602A (ja) * 2008-04-11 2011-06-16 チャン，ダニエル，ウォンチョル 脳エントレインメント方法およびシステム
WO2012157156A1 (fr) * 2011-05-16 2012-11-22 パナソニック株式会社 Dispositif de maintien d'éveil et procédé de maintien d'éveil
JP2012239489A (ja) * 2011-05-16 2012-12-10 Panasonic Corp 覚醒状態維持装置および覚醒状態維持方法
US9058737B2 (en) 2011-05-16 2015-06-16 Chuo University Wakefulness-maintaining device and wakefulness-maintaining method
JP2015162837A (ja) * 2014-02-28 2015-09-07 学校法人 中央大学 音補正出力システム及び音補正出力装置
WO2018180523A1 (fr) * 2017-03-29 2018-10-04 ソニー株式会社 Dispositif de traitement d'informations, procédé de traitement d'informations, et corps mobile
CN110431613A (zh) * 2017-03-29 2019-11-08 索尼公司 信息处理装置、信息处理方法、程序和移动物体
JPWO2018180523A1 (ja) * 2017-03-29 2020-02-06 ソニー株式会社 情報処理装置、情報処理方法、プログラム、及び、移動体
US11317205B2 (en) 2017-03-29 2022-04-26 Sony Corporation Information processing apparatus, information processing method, program, and mobile object
JP7091311B2 (ja) 2017-03-29 2022-06-27 ソニーグループ株式会社 情報処理装置、情報処理方法、プログラム、及び、移動体
CN110431613B (zh) * 2017-03-29 2023-02-28 索尼公司 信息处理装置、信息处理方法、程序和移动物体

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