EP0886990A1 - Process and device for transmitting sound - Google Patents
Process and device for transmitting soundInfo
- Publication number
- EP0886990A1 EP0886990A1 EP97919261A EP97919261A EP0886990A1 EP 0886990 A1 EP0886990 A1 EP 0886990A1 EP 97919261 A EP97919261 A EP 97919261A EP 97919261 A EP97919261 A EP 97919261A EP 0886990 A1 EP0886990 A1 EP 0886990A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- transmission means
- sound transmission
- person
- frequency
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000005236 sound signal Effects 0.000 claims abstract description 31
- 230000005238 low-frequency sound signal Effects 0.000 claims abstract description 16
- 210000003094 ear ossicle Anatomy 0.000 claims abstract description 3
- 210000003454 tympanic membrane Anatomy 0.000 claims description 15
- 210000001562 sternum Anatomy 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 210000002388 eustachian tube Anatomy 0.000 abstract 1
- 230000037361 pathway Effects 0.000 abstract 1
- 210000000038 chest Anatomy 0.000 description 7
- 210000000056 organ Anatomy 0.000 description 5
- 208000000114 Pain Threshold Diseases 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000037040 pain threshold Effects 0.000 description 2
- 210000003800 pharynx Anatomy 0.000 description 2
- 210000003423 ankle Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000000613 ear canal Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005237 high-frequency sound signal Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 210000004224 pleura Anatomy 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Classifications
-
- 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
- H04R5/02—Spatial or constructional arrangements of loudspeakers
- H04R5/023—Spatial or constructional arrangements of loudspeakers in a chair, pillow
-
- 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- 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
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
Definitions
- the invention relates to a method for transmitting sound by means of at least one sound transmission means, which emits sound signals that can be perceived by a person.
- Such methods are used, for example, to transmit music recorded by a microphone or recorded on a sound carrier. It is
- Sound transmission means a speaker or also a
- Headphones that emit sound signals in such a way that they couple to the human ear through the eardrum. By placing them in rooms or placing them in headphones
- the eardrum is vibrated by loudspeakers, which are processed by the person's hearing organ.
- the incoming sound signals run through the ear canal to the eardrum and set it in vibration, which is transmitted to the ossicles become.
- the third ankle transmits these vibrations to the hearing organ through the so-called oval window.
- Sound signals with frequencies approximately below 700 Hz are problematic in this known method for transmitting sound. Since the human ear is particularly susceptible to frequencies in the range between 700 and 6000 Hz, a relatively low sound pressure is sufficient to perceive these frequencies. In contrast, a significantly higher sound pressure is required to be able to perceive frequencies below 700 Hz. This property of the human ear proves to be very disadvantageous in particular in the transmission of music, since in this case there is a strong attenuation with low-frequency sound signals below 700 Hz.
- the overall volume of the transmitted sound of the music is increased, for example.
- the low-frequency sound signals in comparison to medium- and higher-frequency sound signals are noisy, as the attenuation curve with increasing 'the sound pressure is flat.
- a disadvantage of this method is that the medium and higher frequency sound signals also have a higher one Sound pressure level and thus have a much higher volume, which in extreme cases is so high that the pain threshold of a person is reached or exceeded. As a result, the eardrum is overloaded, which results in long-term hearing damage.
- the invention is therefore based on the object of improving a method for transmitting sound of the generic type in such a way that, in addition to the medium-frequency and higher-frequency sound signals, low-frequency sound signals on technically simple to implement and can therefore be transmitted extremely effectively in a cost-effective manner.
- This object is achieved according to the invention in a method for transmitting sound of the type described at the outset by arranging the sound transmission means on the body of the person in order to transmit particularly low-frequency sound signals in such a way that there is a direct sound transmission path from the sound transmission means via the Eustachi tube to the person's ossicles.
- the transmission of low-frequency sound signals in particular by means of sound transmission means arranged on the body of the person via the Eustachi tube to the ossicles has the particularly great advantage that the eardrum and thus also the eardrum attenuation are avoided. In this way there is no damping compensation by means of a variable amplification power or the like. required for the correct transmission of low-frequency sound signals.
- the process can be implemented using simple technical means and requires only relatively low energy consumption. It can also be used in a mobile device.
- the sound transmission means could be arranged in the throat or nose area.
- the sound transmission means is arranged in the chest area in the vicinity of the person's sternum. Since the breastbone is connected to the ribs and, via these, in turn to the pleura, the vibrations are transmitted to the entire chest. This in turn causes the air in the lungs to vibrate. From there, the vibrations pass through the pharynx to the Eustachi tube and from there to the ossicles.
- the advantage here is that the entire chest is used as a resonance body and in this respect represents a bandpass housing, similar to the known subwoofer. As a result, low-frequency sound signals are transmitted particularly advantageously bypassing the eardrum.
- a particularly advantageous embodiment variant of the method provides that the sound signals are additionally transmitted via a further sound transmission means - for example a loudspeaker or a headphone - which couples the Sound signals to the eardrum of the person allows.
- a further sound transmission means for example a loudspeaker or a headphone - which couples the Sound signals to the eardrum of the person allows.
- medium-frequency and / or higher-frequency sound signals can be transmitted in a known manner via the eardrum, whereas, at the same time, low-frequency sound signals can additionally be transmitted particularly effectively via a sound transmission means arranged, for example, in the region of a person's sternum.
- a sound transmission means arranged, for example, in the region of a person's sternum.
- Known speakers, but also resonators or the like can be considered as sound transmission means.
- the object according to the invention is moreover also achieved by a device for transmitting sound with at least one sound transmission means, in which the at least one sound transmission means is arranged on the body of a person such that a direct sound transmission path from the sound transmission means via the Eustachi tube is established the person’s ossicles.
- the at least one sound transmission means is connected downstream of at least one distribution means in which the sound signals are distributed becomes.
- the at least one distribution means advantageously comprises at least one frequency filter means.
- the frequency filter means With regard to the frequency filter means, the most varied of embodiments are conceivable. However, the frequency filter means is advantageously a low-pass filter that is technically particularly easy to implement.
- the frequency filter means a crossover and a low pass and a high pass comprise, wherein the high-pass medium and high-frequency sound signals are transmitted by means of a further sound transmission means which emits sound coupling to the eardrum of the person.
- FIG. 1 schematically shows a flow diagram of the method according to the invention for transmitting sound
- FIG. 2 shows a device according to the invention for transmitting sound.
- the method according to the invention for the transmission of sound can best be explained with reference to FIG. 1.
- sound signals output by a signal source 40 are fed to a distribution means 50.
- the distribution means 50 could be a frequency filtering means or a crossover, which in turn can be realized, for example, by a low-pass filter 20 and a high-pass filter 30.
- Higher frequency sound signals are transmitted to the auditory organ via the eardrum 60 80 transmitted, whereas low-frequency sound signals are transmitted to the hearing organ 80 via the sternum 70.
- the transmission takes place, for example, through loudspeakers 27, 37, the loudspeaker 27 connected downstream of the low-pass filter being arranged in the vicinity of the breastbone 70, while the loudspeaker 37 connected downstream of the high-pass filter 37 is designed, for example, in the form of a headphone. It goes without saying that the low-frequency sound signals can also be transmitted via the loudspeaker 37.
- An embodiment of a device for transmitting sound shown in FIG. 2, comprises a sound recording or reproducing device 10, for example a cassette player or a microphone with a downstream amplifier and the like. , which outputs signals via a signal line 11 to the frequency filter means in the form of a low pass 20 and a high pass 30.
- a sound recording or reproducing device 10 for example a cassette player or a microphone with a downstream amplifier and the like.
- the frequency filter means in the form of a low pass 20 and a high pass 30.
- the low-pass filter 20 Only low-frequency sound signals pass through the low-pass filter 20, the low-pass filter 20 being designed so that only sound signals passing below about 700 Hz pass through it, while medium-frequency and higher-frequency sound signals above 700 Hz are filtered out of the sound signals by the low-pass filter 20.
- the low-pass filter 20 and the high-pass filter 30 can each have amplifiers designed for the corresponding frequencies 25, 35, which control sound transmission means in the form of loudspeakers 27, 37.
- the loudspeaker 27 is arranged in the chest area in the vicinity of the breastbone 70 of a person, so that there is a direct sound transmission path from the loudspeaker 27 via the thorax, the eustachia tube, to the person's auditory ossicles results.
- the chest of the person acts as an additional resonance body, similar to that of a subwoofer known for the transmission of low-frequency sound signals from audio technology.
- the loudspeaker 37 can be, for example, a loudspeaker box known per se, or - as already mentioned above - a headphone or the like. be that allows a sound coupling via the eardrum 60 of a person.
- This device transmits medium-frequency and higher-frequency sound signals in a manner known per se by coupling to the eardrum 60 of a person, while lower-frequency sound signals are transmitted essentially via the chest area and the eustachia tube to the ossicles of the hearing organ 80 of the person. This results in a particularly realistic transmission of sound, in particular music.
- Such a device can be implemented using simple technical means. It is light, compact and portable and can therefore be used anywhere and at any time, in particular it can also be used as a mobile device - similar to the well-known cassette or compact disc Players - to be executed. In addition, it consumes only little energy and can also be fed by batteries as an energy source, so that it is independent of external energy sources. Finally, for the reasons mentioned above, it can also be produced particularly inexpensively and can therefore also be purchased inexpensively for the end user.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9730025T SI0886990T1 (en) | 1996-03-12 | 1997-03-06 | Process and device for transmitting sound |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996109554 DE19609554C1 (en) | 1996-03-12 | 1996-03-12 | Transmission of tape-recorded music and speech to a listener |
DE29604457U | 1996-03-12 | ||
DE29604457U DE29604457U1 (en) | 1996-03-12 | 1996-03-12 | Device for transmitting sound |
DE19609554 | 1996-03-12 | ||
PCT/DE1997/000466 WO1997034441A1 (en) | 1996-03-12 | 1997-03-06 | Process and device for transmitting sound |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0886990A1 true EP0886990A1 (en) | 1998-12-30 |
EP0886990B1 EP0886990B1 (en) | 1999-09-22 |
Family
ID=26023685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97919261A Expired - Lifetime EP0886990B1 (en) | 1996-03-12 | 1997-03-06 | Process and device for transmitting sound |
Country Status (24)
Country | Link |
---|---|
EP (1) | EP0886990B1 (en) |
JP (1) | JP2000506353A (en) |
KR (1) | KR19990087652A (en) |
CN (1) | CN1218603A (en) |
AT (1) | ATE185039T1 (en) |
AU (1) | AU722530B2 (en) |
BG (1) | BG102762A (en) |
BR (1) | BR9707983A (en) |
CA (1) | CA2248019A1 (en) |
CZ (1) | CZ287048B6 (en) |
DE (1) | DE59700475D1 (en) |
EA (1) | EA199800823A1 (en) |
ES (1) | ES2139453T3 (en) |
GR (1) | GR3032205T3 (en) |
HU (1) | HUP9901797A3 (en) |
IL (1) | IL126090A0 (en) |
NO (1) | NO984192L (en) |
NZ (1) | NZ331597A (en) |
PL (1) | PL329006A1 (en) |
SK (1) | SK125598A3 (en) |
TR (1) | TR199801820T2 (en) |
TW (1) | TW404145B (en) |
WO (1) | WO1997034441A1 (en) |
YU (1) | YU39898A (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792754A (en) * | 1972-05-19 | 1974-02-19 | Hear Muffs | Headphone assembly |
DE2451977C2 (en) * | 1973-11-05 | 1982-06-03 | St. Louis University, St. Louis, Mo. | Method and device for recording and reproducing the sound generated by a person's voice |
DE2608908A1 (en) * | 1976-03-04 | 1977-09-08 | Johannes Dipl Phys Dr Lensing | Stereo headphones with third transducer on top of head - uses third transducer to induce sound waves in bones and avoid front location error |
US4322585A (en) * | 1980-05-05 | 1982-03-30 | Liautaud James P | Personal electronic listening system with an air and bone transducer mounted on the clothing collar |
US4641345A (en) * | 1983-10-28 | 1987-02-03 | Pioneer Electronic Corporation | Body-sensible acoustic device |
KR920002929Y1 (en) * | 1990-02-17 | 1992-05-08 | 이정기 | Speaker |
-
1997
- 1997-03-06 DE DE59700475T patent/DE59700475D1/en not_active Expired - Lifetime
- 1997-03-06 KR KR1019980707112A patent/KR19990087652A/en not_active Application Discontinuation
- 1997-03-06 AU AU23796/97A patent/AU722530B2/en not_active Ceased
- 1997-03-06 IL IL12609097A patent/IL126090A0/en unknown
- 1997-03-06 JP JP9532187A patent/JP2000506353A/en active Pending
- 1997-03-06 SK SK1255-98A patent/SK125598A3/en unknown
- 1997-03-06 CN CN97194598A patent/CN1218603A/en active Pending
- 1997-03-06 TR TR1998/01820T patent/TR199801820T2/en unknown
- 1997-03-06 NZ NZ331597A patent/NZ331597A/en unknown
- 1997-03-06 CZ CZ19982891A patent/CZ287048B6/en unknown
- 1997-03-06 EP EP97919261A patent/EP0886990B1/en not_active Expired - Lifetime
- 1997-03-06 ES ES97919261T patent/ES2139453T3/en not_active Expired - Lifetime
- 1997-03-06 PL PL97329006A patent/PL329006A1/en unknown
- 1997-03-06 AT AT97919261T patent/ATE185039T1/en not_active IP Right Cessation
- 1997-03-06 WO PCT/DE1997/000466 patent/WO1997034441A1/en not_active Application Discontinuation
- 1997-03-06 CA CA002248019A patent/CA2248019A1/en not_active Abandoned
- 1997-03-06 HU HU9901797A patent/HUP9901797A3/en unknown
- 1997-03-06 BR BR9707983-9A patent/BR9707983A/en not_active Application Discontinuation
- 1997-03-07 TW TW086102783A patent/TW404145B/en not_active IP Right Cessation
-
1998
- 1998-09-10 BG BG102762A patent/BG102762A/en unknown
- 1998-09-11 YU YU39898A patent/YU39898A/en unknown
- 1998-09-11 NO NO984192A patent/NO984192L/en not_active Application Discontinuation
- 1998-10-09 EA EA199800823A patent/EA199800823A1/en unknown
-
1999
- 1999-12-21 GR GR990403292T patent/GR3032205T3/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9734441A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE185039T1 (en) | 1999-10-15 |
EA199800823A1 (en) | 1999-02-25 |
TW404145B (en) | 2000-09-01 |
KR19990087652A (en) | 1999-12-27 |
YU39898A (en) | 1999-09-27 |
TR199801820T2 (en) | 1998-12-21 |
AU2379697A (en) | 1997-10-01 |
CZ287048B6 (en) | 2000-08-16 |
DE59700475D1 (en) | 1999-10-28 |
CN1218603A (en) | 1999-06-02 |
WO1997034441A1 (en) | 1997-09-18 |
BG102762A (en) | 1999-03-31 |
JP2000506353A (en) | 2000-05-23 |
GR3032205T3 (en) | 2000-04-27 |
HUP9901797A2 (en) | 1999-09-28 |
ES2139453T3 (en) | 2000-02-01 |
IL126090A0 (en) | 1999-05-09 |
CZ289198A3 (en) | 1998-12-16 |
NO984192D0 (en) | 1998-09-11 |
HUP9901797A3 (en) | 2000-08-28 |
CA2248019A1 (en) | 1997-09-18 |
BR9707983A (en) | 2000-01-04 |
NZ331597A (en) | 2000-01-28 |
NO984192L (en) | 1998-09-11 |
PL329006A1 (en) | 1999-03-01 |
SK125598A3 (en) | 1999-04-13 |
AU722530B2 (en) | 2000-08-03 |
EP0886990B1 (en) | 1999-09-22 |
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