EP1028601B1 - Dispositif pour l'acquisition d'ondes sonores dans un véhicule - Google Patents

Dispositif pour l'acquisition d'ondes sonores dans un véhicule Download PDF

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Publication number
EP1028601B1
EP1028601B1 EP00102695A EP00102695A EP1028601B1 EP 1028601 B1 EP1028601 B1 EP 1028601B1 EP 00102695 A EP00102695 A EP 00102695A EP 00102695 A EP00102695 A EP 00102695A EP 1028601 B1 EP1028601 B1 EP 1028601B1
Authority
EP
European Patent Office
Prior art keywords
microphone
microphone capsule
sound
capsule
recording
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.)
Expired - Lifetime
Application number
EP00102695A
Other languages
German (de)
English (en)
Other versions
EP1028601A3 (fr
EP1028601A2 (fr
Inventor
Andreas Peiker
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1028601A2 publication Critical patent/EP1028601A2/fr
Publication of EP1028601A3 publication Critical patent/EP1028601A3/fr
Application granted granted Critical
Publication of EP1028601B1 publication Critical patent/EP1028601B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Definitions

  • the invention relates to a device for detecting Sound waves in a vehicle according to the preamble of Claim 1.
  • a device of the type mentioned is already out of the DE 39 07 895 A1.
  • This insensitivity to noise is so long sufficient to ensure that the Sound waves of the noise are not in the same direction run, like the sound waves of the speaker.
  • a complex background noise as for example in motor vehicles, especially by the diverse Noise sources and the reflection of sound waves occurs, must always be reckoned with sound waves in the same Direction as the sound waves of the speaker run, and therefore significantly reduce the recording quality of the microphone.
  • EP 0 429 264 A2 shows a Microphone device with two built-in microphones, wherein the signals of the one microphone for processing the signals of the second microphone. That's it possible vibration or wind induced ambient noise too eliminate. When phoning in a vehicle is using However, this microphone arrangement is not satisfactory Result achieved. Especially not because it is so is not possible on the level strength of the interference signals act.
  • US-A-5,835,607 describes a mobile device with Handsfree with a single microphone. This is where a low frequency range by means of a high pass filter cut off during voice recording. Although you can Noise in the low frequency range can be eliminated a level influence of the noise overall is so but not possible.
  • the object of the invention is a universally applicable Device for receiving and processing more diverse Create sound sources.
  • the invention is based on the core idea, an extremely flexible and versatile Microphone arrangement to create a variety of Sound sources detected in the vehicle and their Further processing depending on each other sets.
  • An advantage of the invention is that the Device according to the invention further, for example, in the A-pillar, in the roof area above the windshield or provided in the dashboard installation bays without uses additional installation effort, although two microphone capsules be used. This advantage is especially important Repairs and retrofits noticeable.
  • Processing of one recording signal by the other Recording signal has the advantage that during processing any, including unforeseen combinations of sounds, can be reacted.
  • An influence on the recording sensitivity of the Microphone capsule for recording speech allows reaching a consistent recording quality when using the Motor vehicle of users of different physique and thus different seating position respectively different distance to the microphone housing.
  • Such Influencing the recording sensitivity stabilizes the Recording quality even if the user during the Recording takes different positions, for example, because he turns into a confusing street bends forward.
  • an emergency call is transmitted.
  • the use of one of the microphone capsules for Control of a device or an arrangement in the motor vehicle brings the advantage that different devices such as the interior lighting or trunk lock by the user can be controlled. Due to the high recording quality is also the input of complex command chains by the user also possible during operation of the vehicle.
  • Another advantage for the device according to the invention results from the fact that the microphone capsule for recording Language sits approximately in the middle of the case and the microphone capsule for picking up noise on or in a housing wall is arranged. Such an arrangement ensures a optimal recording quality of the microphone capsule for recording Language and a space-saving and for the installation of the Microphone capsule for recording noise beneficial Arrangement of the microphone capsule for recording noises.
  • An advantageous embodiment of the subject invention sees before, the microphone capsules a common Assign sound inlet cone. By this measure is ensure that both capsules in their way of take pictures with the same noise.
  • the housing to the common sound entrance cone out with a sound-permeable cover is closed. So will ensures that the sound waves unhindered in Microphone housing can penetrate and at the same time There is some protection for the microphone capsules.
  • An expedient embodiment of the invention provides that at least one sound room is used by two microphones. By sharing a sound space of two Microphones make it possible to use the microphone case without Design partition walls and thus neither unnecessarily space to consume, nor on the sound waves in the housing influence to take.
  • An expedient embodiment of the subject invention provides that the housing a microphone capsule for recording of speech in a frequency range of 150 to 6400 Hz and a microphone capsule for recording noises in one Frequency range from 30 to 5000 Hz records.
  • a microphone capsule for recording of speech in a frequency range of 150 to 6400 Hz and a microphone capsule for recording noises in one Frequency range from 30 to 5000 Hz records.
  • the microphone capsule for recording Having noises preferably ball characteristic. Due to the omnidirectional characteristics of the microphone capsule for recording From noise, it is possible to use the microphone capsule Recording noise in a border area of the Microphone housing to arrange so that in the microphone housing available space is optimally used and the arrangement of Microphone capsule for recording speech in the microphone housing can be chosen freely.
  • the microphone capsule for receiving a voice has front and a rear sound inlet and the membrane of the microphone capsule for receiving speech is arranged perpendicular to the axis of the sound inlet cone.
  • the microphone capsule for recording Language is also at a small distance between the Sound source and the microphone cabinet a good Recording quality achieved.
  • a microphone housing 1 is cut in Side view shown.
  • the microphone housing 1 consists of a trough-shaped basic body 2 with side walls 3, 4, a back wall 5, a front wall 6 (see 2) and a bottom wall 7, which has an interior 7a include.
  • the bottom wall 7 has a recess 8 and the Walls 5 and 6 have recesses 9.
  • a microphone capsule 10 with a longitudinal axis 10a, a head side 10b, a Foot 10c and sound inlets 10d, 10e is in the Recess 8 of the bottom wall 7 and between the recesses 9 the walls 5, 6 held.
  • the microphone capsule 10 is with Lead wires 11, 12 connected to the microphone housing. 1 leave through a channel 13 in the bottom wall 7.
  • the microphone capsule 14 is in a through hole 15th the side wall 4 is arranged.
  • the microphone capsule 14 has a Head 14a with a sound inlet 14b, a foot side 14c and a longitudinal axis 14d.
  • the microphone capsule 10 shares the interior 7a of the body 2 in a sound room 16 and in a sound room 17.
  • the Sound space 16 is between the side wall 3 and the Head side 10b of the microphone capsule 10 is formed.
  • Of the Sound space 17 is between the side wall 4 and the foot side 10c of the microphone capsule 10 is formed. Looking at that Volume of the interior 7a, so will about 1/5 of the volume through the sound space 16 and 2/5 of the volume through the Sound space 17 taken, the microphone capsule 10 itself about 2/5 of the volume occupies.
  • the microphone capsule 14 In the sound chamber 17 is a stop 18 for the bottom wall 7 the microphone capsule 14 is formed.
  • 20 is a Sound cone 21 with a in the sound entry direction pointing arrow 21 a indicated on the microphone housing. 1 meets.
  • the longitudinal axis 10a of the microphone capsule 10 and the Longitudinal axis 14d of the microphone capsule 14 are perpendicular to Arrow 21a, in the sound entry direction of the Sonic cone 21 points.
  • the sound inlets 10d, 10e are located parallel to the arrow 21a and perpendicular to the longitudinal axis 10a of Microphone capsule 10.
  • Fig. 2 is a circumferentially on the side walls 3, 4, on the back wall 5 and on the front wall 6 paragraph 22.
  • This paragraph 22 forms a Support 23 for a cover, not shown Microphone housing 1.
  • Fig. 3 shows the microphone housing 1 in side view.
  • the microphone capsule 14 can be seen in the Through hole 15 is seated.
  • the microphone capsule 10, which serves as a microphone capsule for recording can be trained by language, takes from the sound space 16 and the sound space 17, if they have a front side and has a rear sound inlet.
  • This signal is either processed in a unit 25 and for example for controlling the microphone capsule 10, which is a Microphone capsule can act to record speech, used.
  • the signal of the microphone capsule 14 is in a unit 26 worked up to from the recording, with the microphone capsule 10 was made, the noise eliminate.
  • the speech signal to the transmitting unit 27th are still further processing steps in Signal processing systems 28 conceivable.
  • the signal from the microphone capsule 14 and / or the signal from the microphone capsule 10 in one Unit 29 to process and for the regulation of sound-generating equipment 30, such.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Claims (8)

  1. Dispositif de détection de sources de sons dans un véhicule, comprenant un boítier de microphone (1) pour recevoir deux capsules à microphone (10, 14), une première capsule à microphone (10), une deuxième capsule à microphone (14) d'une caractéristique de réception différente et un traitement de signal (24),
    la première capsule à microphone (10) ayant le traitement de son signal de réception influencé au moyen du traitement de signal (24) du signal de réception de la deuxième capsule à microphone (14),
    caractérisé en ce que
    le dispositif comprend une unité de commande (29) et le signal de réception de l'une des capsules à microphone (10, 14) ou des deux capsules à microphone (10, 14) est transmis à l'unité de commande (29), qui est prévue pour traiter le signal et commander la génération d'un bruit parasite d'un appareil (30).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la sensibilité ou le traitement de signal de réception d'au moins une capsule à microphone (10) est influencé par une autre capsule à microphone (14) dans l'amplificateur du microphone ou un appareil (25, 26) placé en aval.
  3. Dispositif selon l'une quelconque des revendications 1 ou 2,
    caractérisé en ce que
    la sensibilité de réception de la capsule à microphone (10) peut être influencée par le signal de réception de la capsule à microphone (14).
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le boítier de microphone (1) présente une section transversale rectangulaire qui loge la première capsule à microphone (10) sensiblement au centre, avec des chambres acoustiques (16, 17) disposées de part et d'autre de la première capsule à microphone (10), et la deuxième capsule à microphone (14) est disposée au niveau de l'extrémité dans le boítier de microphone (1) sans modification significative des chambres acoustiques.
  5. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'
    en direction du cône d'entrée de son (21) commun, le boítier de microphone (1) est fermé par une couverture en forme de grille perméable au son.
  6. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'
    au moins une chambre acoustique (16, 17) peut être utilisée conjointement par deux microphones (10, 14).
  7. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la première capsule à microphone (10) a une plage de fréquences entre 150 et 6400 Hz et la seconde capsule à microphone (14) une plage de fréquences entre 30 et 5000 Hz.
  8. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la première capsule à microphone (10) présente une entrée de son sur le côté avant et sur le côté arrière (10d, 10e), et la membrane de la première capsule à microphone (10) est disposée perpendiculairement à l'axe du cône d'entrée de son (21).
EP00102695A 1999-02-10 2000-02-09 Dispositif pour l'acquisition d'ondes sonores dans un véhicule Expired - Lifetime EP1028601B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29902393U DE29902393U1 (de) 1999-02-10 1999-02-10 Vorrichtung zur Erfassung von Schallwellen in einem Fahrzeug
DE29902393U 1999-02-10

Publications (3)

Publication Number Publication Date
EP1028601A2 EP1028601A2 (fr) 2000-08-16
EP1028601A3 EP1028601A3 (fr) 2002-06-12
EP1028601B1 true EP1028601B1 (fr) 2005-12-28

Family

ID=8069223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00102695A Expired - Lifetime EP1028601B1 (fr) 1999-02-10 2000-02-09 Dispositif pour l'acquisition d'ondes sonores dans un véhicule

Country Status (4)

Country Link
EP (1) EP1028601B1 (fr)
AT (1) ATE314799T1 (fr)
DE (3) DE29902393U1 (fr)
ES (1) ES2255904T3 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03162100A (ja) * 1989-11-20 1991-07-12 Matsushita Electric Ind Co Ltd マイクロホン装置およびマイクロホン装置を搭載したビデオ一体型カメラ
US5732143A (en) * 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
DE4330143A1 (de) * 1993-09-07 1995-03-16 Philips Patentverwaltung Anordnung zur Siganlverarbeitung akustischer Eingangssignale
DE69531413T2 (de) * 1994-05-18 2004-04-15 Nippon Telegraph And Telephone Corp. Sender-Empfänger mit einem akustischen Wandler vom Ohrpassstück-Typ

Also Published As

Publication number Publication date
ATE314799T1 (de) 2006-01-15
ES2255904T3 (es) 2006-07-16
DE29902393U1 (de) 2000-07-20
DE50011937D1 (de) 2006-02-02
EP1028601A3 (fr) 2002-06-12
DE10005362A1 (de) 2000-08-17
EP1028601A2 (fr) 2000-08-16

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