WO1999020077A1 - Dispositif de reproduction sonore pouvant etre place sur le corps d'un utilisateur - Google Patents

Dispositif de reproduction sonore pouvant etre place sur le corps d'un utilisateur Download PDF

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Publication number
WO1999020077A1
WO1999020077A1 PCT/EP1998/006138 EP9806138W WO9920077A1 WO 1999020077 A1 WO1999020077 A1 WO 1999020077A1 EP 9806138 W EP9806138 W EP 9806138W WO 9920077 A1 WO9920077 A1 WO 9920077A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
user
head
transducers
reproduction device
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.)
Ceased
Application number
PCT/EP1998/006138
Other languages
German (de)
English (en)
Inventor
Bert Zinserling
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.)
Sennheiser Electronic GmbH and Co KG
Original Assignee
Sennheiser Electronic GmbH and Co KG
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
Priority claimed from DE1997145574 external-priority patent/DE19745574A1/de
Application filed by Sennheiser Electronic GmbH and Co KG filed Critical Sennheiser Electronic GmbH and Co KG
Priority to DE59804603T priority Critical patent/DE59804603D1/de
Priority to AT98950085T priority patent/ATE219877T1/de
Priority to EP98950085A priority patent/EP1023817B1/fr
Priority to AU96284/98A priority patent/AU9628498A/en
Priority to JP2000516505A priority patent/JP2001521299A/ja
Publication of WO1999020077A1 publication Critical patent/WO1999020077A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
    • H04R2205/024—Positioning of loudspeaker enclosures for spatial sound reproduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Definitions

  • Sound reproduction device that can be stored on the body of a user
  • the invention relates to a sound reproduction device with at least two sound transducers, each driven by an electrical signal, and a holder for supporting the sound transducer on the body of a user.
  • Such a device with two transducers has hitherto been known as headphones.
  • the headphones have two ear cups, in each of which at least one sound transducer is arranged.
  • the headphones are mounted on the body of the user in such a way that they are placed on the head, so that each ear shell lies with its open side directly on an ear of the user or surrounds it and thus the acoustic transducer (s) arranged in the ear shell Give signals directly to the ear (- the well-known headphones should therefore be more appropriately referred to as "earphones"). It is characteristic of the headphones that the left ear receives only the left audio signal and the right ear only the right audio signal of the headphones.
  • a multi-channel sound reproduction with a better spatial allocation can be achieved with the aid of a corresponding number of loudspeakers placed discretely in a room; however, such loudspeakers require a greater installation effort and a larger space requirement, the room acoustics having a considerable influence on the reproduction quality, high volumes disturbing the surroundings and, last but not least, high-quality systems being particularly expensive.
  • the holder is designed such that it can be stored on a body part of the user different from the head and adjacent to transducers and placed at a distance from the head of the user, so that the Head of the user relative to the bracket and thus freely movable against the transducers. ⁇ remains, and that the bracket carries an electronic circuit for processing the electrical signals.
  • the left and right ear can record all the reproduced channels, so that the individual transfer function of a user's head is included in the reproduction.
  • the direction of sound can clearly be heard be determined.
  • a head rotation is made possible, which, like natural hearing, simplifies the location of a sound source.
  • a so-called head-related sound reproduction device is created in that, when the holder is mounted on the body of the user, the sound transducer or transducers themselves do not lie directly on the head, but are arranged at a distance from the head and thus allow the head to rotate, the or do not move the transducers with your head.
  • the sound transducer or transducers themselves do not lie directly on the head, but are arranged at a distance from the head and thus allow the head to rotate, the or do not move the transducers with your head.
  • the overall transmission function of the head can be additionally exploited by the sound reproduction device according to the invention, while this is not possible with headphones because headphones are not “headphones” but rather “earphones", since their ear cups lie directly on the ear or enclose it and thus the sound transducers in it emit the acoustic signals directly to the ear.
  • the sound reproduction device according to the invention due to the arrangement of the sound transducer or transducers at a distance from the ear, body shell transmission takes place in addition to the acoustically direct radiation to the ear. But above all, by incorporating the transfer function of the user's head, the sound event appears more "natural" to the listener.
  • the invention allows sound reproduction even with a very high level of volume perception, without the surroundings and in particular the neighbors being disturbed, because the sound transducers are arranged very close to the user's ears and therefore relatively low sound pressures on the playback transducer are sufficient to achieve a high level for the user To achieve volume impression.
  • a particular advantage of the playback device is that an electronic circuit for processing the electrical signals for the sound transducers is integrated in its holder. This is made possible precisely by the fact that the holder is not supported on the head but, for example, on the much stronger shoulders. The integration of the circuit in the holder makes a corresponding external device unnecessary and considerably simplifies the handling of the sound reproduction device.
  • a great advantage of the circuit integrated in the holder is that the circuit can have filters and subcircuits for equalizing the sound transducers.
  • the sound transducers can thus be electronically equalized in a particularly effective manner, which enables an increased reproduction quality.
  • a circuit having amplifier stages is particularly preferred, so that the sound reproduction device can be connected directly to a signal source, such as a CD player.
  • the circuit in a preferred embodiment variant has a subcircuit for decoding encrypted multichannel signals, it can be used, for example, to decrypt Dolby Surround signals and make a corresponding external decoder superfluous. In this case, it is sufficient to connect the sound reproduction device directly to a CD player in order, for example, to listen to CDs recorded in the Dolby Surround method in real Dolby Surround quality without any additional equipment.
  • Figure 1 shows a first embodiment of the sound reproduction device in a perspective view.
  • FIG. 1 a shows an alternative embodiment of the sound reproduction device from FIG. 1 for wireless audio signal reception
  • FIG. 2 shows the embodiment according to FIG. 1 (mounted on the shoulders of a user) in a top view
  • FIG. 3 shows the embodiment of FIG. 1 (on the shoulders of a user stored) in front view
  • FIG. 4a shows an alternative embodiment of the sound reproduction device from FIG. 1 for wireless audio signal reception
  • FIG. 5 shows the embodiment according to FIG. 4 (mounted on the shoulders of a user) in a top view
  • FIG. 6 is a front view of the sound reproducing device
  • Fig. 8 is a top view of the sound reproducing device.
  • the first embodiment of the sound reproduction device shown in FIG. 1 has a housing or frame 2 which consists of a rear part 4 and two curved side parts 5 and 6 adjoining it on both sides, which end in free end sections 7 and 8.
  • the frame 2 is thus designed as a shaped body which, in plan view (see FIG. 2), essentially has the shape of an interrupted "0" or a "U” with free ends bent inwards.
  • front first and second sound transducers 1 0 and 1 1, rear third and fourth sound transducers 1 2 and 1 3 and a rear low-frequency sound transducer 14 are arranged. Accordingly, the frame 2 is used to hold the sound transducers 1 0 to 1 4.
  • the sound transducers 1 0 to 1 4 form a multi-channel Dolby Surround playback system, the front first and second sound transducers 1 0 and 1 1 being the main transducer for reproducing the front right - and links information and the rear third and fourth sound transducers 1 2 and 1 3 are provided as rear transducers for reproducing the additional spatial information (surround channel), while the rear bass transducer 1 4 reproduces the low-frequency portion.
  • two acoustic lines 1 5 and 1 6 are formed in the frame 2, of which one acoustic line 1 5 extends from the rear low-frequency transducer 14 into one side part 5 and there, adjacent to the rear third sound transducer 1 2, in an outlet opening 1 7 arranged on the inside ends and the other acoustic line 1 6 from the rear woofer 1 4 in the extends to the other side part 6 and ends there also adjacent to the rear fourth sound transducer 1 3 in an inward opening 1 8.
  • An electronic circuit 40 is also arranged in the frame 2, to which the sound transducers 10 to 14 are connected via electrical lines 42, 43, 44, 45 and 46. Another electrical line 47 is used to connect the sound reproduction device to a signal source.
  • the control circuit 40 can have various subcircuits, namely those for equalizing the individual sound converters 1 0 to 1 4, those for decoding an encrypted multi-channel sound signal and those for amplifying the signals for the individual sound converters.
  • the encrypted multi-channel audio signal is fed through line 47 to circuit 40, where it is decoded and amplified.
  • the signal for the individual sound transducers is processed taking into account the distortions characteristic of the sound transducers, so that the sound transducers as a result reproduce a largely undistorted signal.
  • the difference between the embodiment of the sound reproduction device shown in FIG. 1 and FIG. 1 a is that the sound signals are not supplied to the circuit 40 'via a line 47, but wirelessly.
  • the circuit has a corresponding receiver 48, e.g. an infrared receiver or RF receiver.
  • the circuit is also equipped with its own battery-powered power supply. This enables the wearer of the sound reproducing device to move freely in the room.
  • the sound transducers 1 0 to 1 4 are recessed so that edges are avoided which would otherwise cause sound reflections and thus also interference with the sound radiated directly by the sound transducer.
  • the first to fourth sound transducers 1 0 - 1 3 are oriented so that they emit the sound through openings (not shown in more detail) formed on the inside of the frame 2 into the interior enclosed by the frame 2, the frame 2 at least at those openings , but preferably as a whole of one (not shown) Textile layer or other protective layer is covered, which is, however, not absolutely necessary.
  • the carrier 2 itself consists of a highly damping material so that it does not itself contribute to sound generation and conduction.
  • the frame 2 is designed as a shaped body, but other constructions for holding the sound transducers 1 0 - 14 and forming the acoustic lines 1 5 and 1 6 are also conceivable. If desired, the acoustic lines 1 5 and 1 6 can also be omitted; this naturally also applies in principle to the number and design of the individual sound transducers.
  • FIGS. 2 and 3 now show how the embodiment of the sound reproduction device described above is mounted on the body of a user.
  • the frame 2 is not only used to arrange the transducers 1 0 - 1 4, but also to support this arrangement on the body of a user by having the undersides 5a and 6a of the side parts 5 and 6 (see FIG. 1) on the shoulders 20 of the user rests, while it is not necessarily supported on the back of the user with the underside 4a of the rear part 4 (see FIG. 1).
  • the frame 2 is designed and can be placed and fixed on the shoulders 2 and possibly on the back of the user so that the frame 2 is at a short distance from the head 22 of the user and thus the head 22 remains freely movable.
  • the frame can also be designed so that it can be stored on another part of the body. It is only important that it can be stored on a body part of the user that is different from the head 22, so that the head 22 relative to the frame 2 and thus relative to the sound transducers 1 0 - 14 and outlet openings 1 7 and 1 8 of the acoustic lines 1 arranged therein 5 and 1 6 remains freely movable.
  • the frame 2 of the embodiment shown there has the shape of a collar when it rests on the shoulders 20 of the user. Therefore, the described sound reproduction device can also be referred to as an "auditory collar".
  • the storage is preferably designed so that the center of gravity of the storage is formed centrally in the support surface between the shoulders of the user. If necessary, weights 7 and 8 can be accommodated for this purpose (not shown in more detail). Furthermore, the sound transducers 1 0 - 14 and the outlet openings 1 7 and 1 8 of the acoustic lines 1 5 and 1 6 in the frame 2 are arranged such that when the frame 2 is mounted on the body of the user, the front first and second sound transducers 1 0 and 1 1 in front of the frontal plane F of a coordinate system related to the head 22 of the user in the area of the chin below the ear level and the rear third and fourth sound transducers 1 2 and 1 3 behind the frontal plane F and the outlet openings 1 7 and 1 8 of the acoustic lines 1 5 and 16 are arranged somewhat below the ears 24 and 25, while the rear low-frequency transducer 14 lies behind the head 22, as can be seen in FIGS.
  • the front first and second sound transducers 10 and 1 1 and the rear third and fourth sound transducers 1 2 and 1 3 are each arranged symmetrically to the median plane M of the coordinate system relating to the head 22 of the user, while the rear low-frequency sound transducer 1 4 is arranged in the median plane M lies, as can also be seen in FIG. 2.
  • the described sound reproduction device accordingly forms a head-related multi-channel reproduction system.
  • the sound transducers 10-14 are arranged around the head 22, whereby they themselves do not lie directly against the head 22, but are arranged at least at a small distance therefrom and thus do not move when the head 22 is rotated.
  • the head 22 of the user is himself free, which leads to the fact that a spatial reproduction is made possible as with loudspeakers set up in the room. Due to the spatial distance of the sound transducers from the ears 24 and 25, the transfer function of the user head is included in the sound field and there is also a structure-borne sound transmission, so that the perception of the reproduced sound sounds "more natural" for the user.
  • FIGS to 3 show a second embodiment of the Schallwiedergabevor, -_ direction is shown which 1 is different 'from the first embodiment in accordance with FIGS to 3, characterized in that a front transducer, additionally 30 is disposed of at the shoulders 20 of the User placed frame 2 is approximately in the median plane M in the area of the chin of the user.
  • a front transducer, additionally 30 is disposed of at the shoulders 20 of the User placed frame 2 is approximately in the median plane M in the area of the chin of the user.
  • one end section 7 is provided with an extension 7a compared to the first embodiment and is accordingly extended, or the device is closed towards the front (O-shaped).
  • the sound transducer 30 is also connected via a line 49 to the circuit 40 ', through which the signal for the sound transducer 30 is also processed in the manner described for FIG. 1.
  • the sound reproduction device from FIG. 4 can also be prepared for wireless operation. This is shown in Fig. 4a.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

L'invention concerne un dispositif de reproduction sonore permettant une reproduction multivoie, ledit dispositif comprenant au moins trois transducteurs acoustiques (10; 11; 12; 13; 14; 30) commandés chacun par un signal électrique, et un support (2) pour les transducteurs acoustiques, destiné à être placé sur le corps de l'utilisateur. Ce support (2) est conçu de façon à pouvoir être placé sur une partie (20) du corps de l'utilisateur autre que la tête (22) et de sorte que les transducteurs acoustiques (10; 11; 12; 13; 14; 30) puissent être adjacents et placés à distance de la tête (22) de l'utilisateur. Ainsi, l'utilisateur peut bouger librement la tête (22) par rapport au support (2) et donc par rapport aux transducteurs acoustiques (10; 11; 12; 13; 14; 30). Le support (2) présente un circuit électronique pour le traitement des signaux électriques.
PCT/EP1998/006138 1997-10-15 1998-09-26 Dispositif de reproduction sonore pouvant etre place sur le corps d'un utilisateur Ceased WO1999020077A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59804603T DE59804603D1 (de) 1997-10-15 1998-09-26 Am körper eines benutzers lagerbare schallwiedergabevorrichtung
AT98950085T ATE219877T1 (de) 1997-10-15 1998-09-26 Am körper eines benutzers lagerbare schallwiedergabevorrichtung
EP98950085A EP1023817B1 (fr) 1997-10-15 1998-09-26 Dispositif de reproduction sonore pouvant etre place sur le corps d'un utilisateur
AU96284/98A AU9628498A (en) 1997-10-15 1998-09-26 Sound-reproducing device mountable on the body of a user
JP2000516505A JP2001521299A (ja) 1997-10-15 1998-09-26 使用者の身体に取り付け可能なサウンド再生装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997145574 DE19745574A1 (de) 1996-04-26 1997-10-15 Am Körper eines Benutzers lagerbare Schallwiedergabevorrichtung
DE19745574.3 1997-10-15

Publications (1)

Publication Number Publication Date
WO1999020077A1 true WO1999020077A1 (fr) 1999-04-22

Family

ID=7845623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/006138 Ceased WO1999020077A1 (fr) 1997-10-15 1998-09-26 Dispositif de reproduction sonore pouvant etre place sur le corps d'un utilisateur

Country Status (6)

Country Link
EP (1) EP1023817B1 (fr)
JP (1) JP2001521299A (fr)
AT (1) ATE219877T1 (fr)
AU (1) AU9628498A (fr)
DE (1) DE59804603D1 (fr)
WO (1) WO1999020077A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1071309A3 (fr) * 1999-07-20 2003-07-02 König, Florian Meinhard Casque d'écoute avec localisation réglable d'un événement sonore géneré par lui

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900707A (en) * 1973-06-06 1975-08-19 Hear Muffs Speaker apparatus
JPS62299200A (ja) * 1986-06-18 1987-12-26 Matsushita Electric Ind Co Ltd ステレオヘツドホン
DE3709397A1 (de) * 1987-03-21 1988-09-29 Head Stereo Gmbh Vorrichtung zur filterung von schallsignalen
EP0424201A1 (fr) * 1989-10-02 1991-04-24 STMicroelectronics S.A. Décodeur pour décoder un son crypté de télévision
JPH0437303A (ja) * 1990-06-01 1992-02-07 Matsushita Electric Ind Co Ltd 低周波増幅器
DE19616870A1 (de) * 1996-04-26 1997-10-30 Sennheiser Electronic Am Körper eines Benutzers lagerbare Schallwiedergabevorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900707A (en) * 1973-06-06 1975-08-19 Hear Muffs Speaker apparatus
JPS62299200A (ja) * 1986-06-18 1987-12-26 Matsushita Electric Ind Co Ltd ステレオヘツドホン
DE3709397A1 (de) * 1987-03-21 1988-09-29 Head Stereo Gmbh Vorrichtung zur filterung von schallsignalen
EP0424201A1 (fr) * 1989-10-02 1991-04-24 STMicroelectronics S.A. Décodeur pour décoder un son crypté de télévision
JPH0437303A (ja) * 1990-06-01 1992-02-07 Matsushita Electric Ind Co Ltd 低周波増幅器
DE19616870A1 (de) * 1996-04-26 1997-10-30 Sennheiser Electronic Am Körper eines Benutzers lagerbare Schallwiedergabevorrichtung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 200 (E - 619) 9 June 1988 (1988-06-09) *
PATENT ABSTRACTS OF JAPAN vol. 16, no. 221 (E - 1205) 22 May 1992 (1992-05-22) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1071309A3 (fr) * 1999-07-20 2003-07-02 König, Florian Meinhard Casque d'écoute avec localisation réglable d'un événement sonore géneré par lui

Also Published As

Publication number Publication date
EP1023817A1 (fr) 2000-08-02
EP1023817B1 (fr) 2002-06-26
JP2001521299A (ja) 2001-11-06
ATE219877T1 (de) 2002-07-15
AU9628498A (en) 1999-05-03
DE59804603D1 (de) 2002-08-01

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