EP0009116A1 - Dispositif et procédé pour la reproduction électroacoustique de sons au moyen d'écouteurs, ainsi q'un dispositif pour la transmission de vibrations sonores au corps humain - Google Patents

Dispositif et procédé pour la reproduction électroacoustique de sons au moyen d'écouteurs, ainsi q'un dispositif pour la transmission de vibrations sonores au corps humain Download PDF

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Publication number
EP0009116A1
EP0009116A1 EP79102941A EP79102941A EP0009116A1 EP 0009116 A1 EP0009116 A1 EP 0009116A1 EP 79102941 A EP79102941 A EP 79102941A EP 79102941 A EP79102941 A EP 79102941A EP 0009116 A1 EP0009116 A1 EP 0009116A1
Authority
EP
European Patent Office
Prior art keywords
electroacoustic transducer
human body
cushion
headphones
sound
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP79102941A
Other languages
German (de)
English (en)
Inventor
René Dr. Pomeranz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0009116A1 publication Critical patent/EP0009116A1/fr
Withdrawn legal-status Critical Current

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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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/023—Transducers incorporated in garment, rucksacks or the like

Definitions

  • the invention relates to a device for electroacoustic sound reproduction by means of headphones, a method for operating this device and a device for transmitting sound vibrations to the human body.
  • the aim of the present invention is to enable sound reproduction by means of headphones which does not have the disadvantage mentioned above, but without the advantages of the headphones being revealed.
  • an additional electroacoustic transducer which has devices by means of which it can be attached to a location on the human body surface that is outside the area of the hearing, in order to transmit its mechanical vibrations to the body.
  • the electroacoustic transducer preferably has holding devices by means of which it can be attached to the front of the human torso.
  • the electroacoustic transducer is the voice coil capsule of a loudspeaker.
  • the aim is to create a device for transmitting mechanical vibrations of an electroacoustic transducer to the human body, which eliminates the disadvantages mentioned.
  • liquid cushion designed to rest on the human body.
  • the liquid cushion is attached to a vibrating point on the electroacoustic transducer.
  • the device is operated in such a way that the headphones and the electroacoustic transducer are connected to the same amplifier circuit in such a way that the electroacoustic transducer essentially reproduces oscillation frequencies in the low-frequency range, whereby for the transmission of these frequencies to the human body it is located outside the area of the hearing Place of the human body surface is attached.
  • the electroacoustic transducer shown in FIG. 1 has a tether 2 with adjustment buckles 3. This holding band is placed over the head of the listener and adjusts the length of the band 2 by means of the adjustment buckles 3 such that the transducer 1 rests on the body in the region of the breastbone as shown. From the sternum the. Sound passed through the ribs around the entire thorax and thus delivered to the vibrating organs of the lungs and diaphragm. The associated organ resonances lead to a realistic music experience.
  • an additional band 8 can be provided, which is carried out from the transducer 1 behind the back of the listener in order to hold the transducer in place, even when the listener leans forward.
  • headphones 9 and electroacoustic transducer 1 are mechanically connected to one another in such a way that the holding straps are unnecessary, the components mentioned being attached to the same holding frame.
  • a voice coil arrangement or a piezoelectric transducer, to which a liquid cushion 22 is attached, has proven to be a particularly suitable embodiment of the electroacoustic transducer, as shown in section in FIG. 6.
  • the cushion 22 has a cover made of plastic film, which contains a liquid.
  • the filling state of the cushion should be such that protruding parts of the body-side support surface cannot directly touch the capsule of the electroacoustic transducer 1, but that on the other hand the body-side support surface remains flexible.
  • the viscosity of the The liquid used can vary over a wide range, namely from about 0.1 mPa.s to over 100,000 mPa.s at room temperature, such as ether (0.23 mPa.s), water (1 mPa.s), castor oil ( 1060 mPa.s), glycerin (1600 mPa.s), viscous motor oil (800 mPa.s), molasses (100,000 mPa ⁇ s) and gelatinous substances.
  • the cushion thickness can be selected smaller for liquids with higher viscosity than for thin liquids.
  • this device can also be arranged over a layer of clothing 23.
  • the sound from transducer 1 passes through liquid cushion 22 through clothing 23 and skin 24 to bone 25.
  • the device described is also suitable for transmitting vibrations to the human body at any point, for example on the trunk, on the skull behind the ear or in the area of the scalp hair.
  • the liquid cushion lies on the breastbone or the clothes lying above it, as shown schematically in FIG. 2 shown.
  • the device fitted in this way enables the generation of deep sound vibrations with low surface vibration by directing the sound vibrations transmitted to the breastbone through the ribs around the entire thorax and thereby the vibrating one Organs are fed to the lungs and diaphragm.
  • the resulting Sensory sensations correspond very well to the original listening experience.
  • the device can also be worn by means of a loop on the neck, as is shown schematically in FIG. 2, or else can be attached to the shoulders by means of two separate brackets.
  • the liquid cushion 2 ensures good sound transmission to the body without the device additionally having to be pressed against the body surface.
  • the electroacoustic transducer is supplied in a known manner by means of a line 7 or wirelessly via an amplifier.
  • the good efficiency of the sound transmission through the liquid cushion 2 allows the device to be operated with a comparatively low power in order to achieve the desired effect. Therefore, the device can be connected to the headphone output of a single or multi-channel amplifier.
  • connections labeled L and R each represent the amplifier output for the left (1) and right (R) channel of a two-channel amplifier.
  • the connection in between represents a neutral conductor, which for simplicity is drawn together for both channels, in reality, however, it is often available separately for each channel.
  • headphones 10, 11 are shown schematically for the right and left channels, while in FIG. 5 they have been omitted to improve clarity.
  • the circuit shown in Fig. 3 has two headphone elements elements 10,11, which are each connected to the left or right channel of a two-channel amplifier.
  • the electroacoustic transducer 1 is designed parallel to the element 10 and thus only transmits the signals appearing in the left channel of the amplifier. However, this does not detract from the desired effect of this converter because the organs to be influenced are generally not able to distinguish the signals from the right and left channels.
  • Corresponding switching element 12 with respect to k sti impedance arranged - to adapt the transmission channel to the right caused by the parallel connection of the converter in the left channel change of the impedance value is in the right channel of a Lautsseler malfunctioni. This is necessary in order to ensure a balanced sound reproduction of the two headphone elements 10, 11. If a single-channel amplifier is used, the converter 1 is connected in parallel with both headphones.
  • the L and R channels of a two-channel amplifier are coupled via a crossover and then jointly fed to the converter 1.
  • the crossover is represented in the present example by the chokes 13, but can be replaced by a low-pass filter with a more complicated structure, as are known to the person skilled in the art.
  • the y adjustable voltage divider 14 allows the "balance" between headphones 10, 11 and converter 1 to be influenced with respect to the bass frequencies.
  • FIG. 5 finally shows a third circuit variant for connecting the electroacoustic transducer 1.
  • the signals from a two-channel amplifier are each fed to a single-channel power amplifier 16 via a decoupling resistor. which feeds the loudspeaker 1.
  • the transducer 1 with different types of headphones is intended, it is provided to provide the circuits shown in FIGS. 3 and 4 by means of a tap changer which allows the switching elements with different impedance values to be connected, thereby adapting to the impedance of the the type of headphones used is possible
  • a further connection type of the converter 1 is its connection to the loudspeaker output of the amplifier, while the headphones are connected to the headphone output.
  • this requires an amplifier in which the outputs mentioned can be operated simultaneously.
  • the device according to the invention has the advantage that an effective sound transmission to the human body is made possible with a small feed power. There are no disturbing vibrations of clothing or skin, and the device adapts to the unevenness of the body surface or clothing with even pressure.
  • the sound vibrations transmitted to the body in this way create a feeling of deep vibration, which, in connection with sound reproductions that are also recorded by the hearing, leads to a listening experience that comes very close to the original listening experience.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
EP79102941A 1978-08-14 1979-08-13 Dispositif et procédé pour la reproduction électroacoustique de sons au moyen d'écouteurs, ainsi q'un dispositif pour la transmission de vibrations sonores au corps humain Withdrawn EP0009116A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH8617/78 1978-08-14
CH861778 1978-08-14
CH106879 1979-02-02
CH1068/79 1979-02-02

Publications (1)

Publication Number Publication Date
EP0009116A1 true EP0009116A1 (fr) 1980-04-02

Family

ID=25686544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102941A Withdrawn EP0009116A1 (fr) 1978-08-14 1979-08-13 Dispositif et procédé pour la reproduction électroacoustique de sons au moyen d'écouteurs, ainsi q'un dispositif pour la transmission de vibrations sonores au corps humain

Country Status (1)

Country Link
EP (1) EP0009116A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485276A (en) * 1981-02-10 1984-11-27 Olympus Optical Co., Ltd. Personal audio device
US4876724A (en) * 1988-04-29 1989-10-24 Toshiba America, Inc. Personal sound system
GB2240689A (en) * 1989-11-07 1991-08-07 Egils Ranga Three speaker stereo system
GB2311683A (en) * 1996-03-28 1997-10-01 Stanton Magnetics Chest mounted bone conduction speaker allows user to feel an audible sound
FR2803714A1 (fr) * 2000-01-06 2001-07-13 C M I Casque musical integral
EP1122975A1 (fr) * 2000-02-07 2001-08-08 3D ACOUSTICS Vertriebs-GmbH Dispositif portable pour transmettre du son
WO2007104172A1 (fr) * 2006-03-10 2007-09-20 Pomeranz Rene Procédé de fixation d'un convertisseur électroacoustique sur la partie supérieure du corps humain
WO2009022135A1 (fr) 2007-08-15 2009-02-19 Airsound, Llp Procédé permettant d'améliorer le rendu sonore et le plaisir de l'écoute
WO2014074081A1 (fr) * 2012-11-08 2014-05-15 Çalişir Adnan Collier pour le thymus
US9384639B2 (en) 2012-07-05 2016-07-05 Michael Joseph White Rigid fixture for coupling one or more transducers to the upper back of the human body

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1284565A (fr) * 1960-12-15 1962-02-16 Socapex Transducteur électro-acoustique
DE1591095A1 (de) * 1967-04-03 1970-12-17 Wolfgang Dietz Drahtlose Ankopplung von Stereo-Kopfhoerern
DE2451977A1 (de) * 1973-11-05 1975-05-15 Univ St Louis Schallwiedergabegeraet
DE2608908A1 (de) * 1976-03-04 1977-09-08 Johannes Dipl Phys Dr Lensing Stereokopfhoerer zur uebertragung der vorne-ortung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1284565A (fr) * 1960-12-15 1962-02-16 Socapex Transducteur électro-acoustique
DE1591095A1 (de) * 1967-04-03 1970-12-17 Wolfgang Dietz Drahtlose Ankopplung von Stereo-Kopfhoerern
DE2451977A1 (de) * 1973-11-05 1975-05-15 Univ St Louis Schallwiedergabegeraet
DE2608908A1 (de) * 1976-03-04 1977-09-08 Johannes Dipl Phys Dr Lensing Stereokopfhoerer zur uebertragung der vorne-ortung

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485276A (en) * 1981-02-10 1984-11-27 Olympus Optical Co., Ltd. Personal audio device
US4876724A (en) * 1988-04-29 1989-10-24 Toshiba America, Inc. Personal sound system
GB2240689A (en) * 1989-11-07 1991-08-07 Egils Ranga Three speaker stereo system
GB2240689B (en) * 1989-11-07 1994-06-08 Egils Ranga An improved three speaker stereo sound system
GB2311683A (en) * 1996-03-28 1997-10-01 Stanton Magnetics Chest mounted bone conduction speaker allows user to feel an audible sound
FR2746636A1 (fr) * 1996-03-28 1997-10-03 Stanton Magnetics Haut-parleur a conduction osseuse et dispositif de montage
US5784478A (en) * 1996-03-28 1998-07-21 Stanton Magnetics, Inc. Audible environment awareness restoring device
GB2311683B (en) * 1996-03-28 1999-10-06 Stanton Magnetics Bone conduction speaker and mounting system
FR2803714A1 (fr) * 2000-01-06 2001-07-13 C M I Casque musical integral
EP1122975A1 (fr) * 2000-02-07 2001-08-08 3D ACOUSTICS Vertriebs-GmbH Dispositif portable pour transmettre du son
WO2001058207A2 (fr) * 2000-02-07 2001-08-09 3 D Acoustics Vertriebs-Gmbh Dispositif portatif servant a transmettre du son
WO2001058207A3 (fr) * 2000-02-07 2002-03-28 3 D Acoustics Vertriebs Gmbh Dispositif portatif servant a transmettre du son
WO2007104172A1 (fr) * 2006-03-10 2007-09-20 Pomeranz Rene Procédé de fixation d'un convertisseur électroacoustique sur la partie supérieure du corps humain
WO2009022135A1 (fr) 2007-08-15 2009-02-19 Airsound, Llp Procédé permettant d'améliorer le rendu sonore et le plaisir de l'écoute
US8391516B2 (en) 2007-08-15 2013-03-05 Airsound Llp Method of using an audio device for improving sound reproduction and listening enjoyment
US9384639B2 (en) 2012-07-05 2016-07-05 Michael Joseph White Rigid fixture for coupling one or more transducers to the upper back of the human body
WO2014074081A1 (fr) * 2012-11-08 2014-05-15 Çalişir Adnan Collier pour le thymus

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