EP0504562A1 - Système de reproduction du son pour reproduction du son avec effet spatial du son - Google Patents

Système de reproduction du son pour reproduction du son avec effet spatial du son Download PDF

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Publication number
EP0504562A1
EP0504562A1 EP92101687A EP92101687A EP0504562A1 EP 0504562 A1 EP0504562 A1 EP 0504562A1 EP 92101687 A EP92101687 A EP 92101687A EP 92101687 A EP92101687 A EP 92101687A EP 0504562 A1 EP0504562 A1 EP 0504562A1
Authority
EP
European Patent Office
Prior art keywords
sound
listening location
loudspeakers
sound reproduction
spatial
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
Application number
EP92101687A
Other languages
German (de)
English (en)
Other versions
EP0504562B1 (fr
Inventor
Hans Dr. Schultes
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.)
Nokia Deutschland GmbH
Original Assignee
Nokia Deutschland GmbH
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 Nokia Deutschland GmbH filed Critical Nokia Deutschland GmbH
Publication of EP0504562A1 publication Critical patent/EP0504562A1/fr
Application granted granted Critical
Publication of EP0504562B1 publication Critical patent/EP0504562B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • 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 sound reproduction arrangement for a sound reproduction with a spatial sound effect according to the preamble of claim 1.
  • the listener is to be given the reproduction of a sound signal with the impression of a certain spatiality of the sound event in a space limited on all sides.
  • the listener gets the best hearing impression both in the sound image and in the spatial impression when the sound event emitted by the various loudspeakers arrives simultaneously at the location, the listening location, at which the listener is located. Therefore, such sound reproduction arrangements contain devices with which the electrical sound signals transmitted to the loudspeakers are so electrically or acoustically delayed that they arrive as sound signals at the particular listening location at the same time.
  • the sound image is more or less distorted at the listening location as a result of interference with disturbing reflections and standing acoustic waves on and between the boundary surfaces of the room. These disturbances occur the more disturbing the smaller the room in which the listening location is located. This applies in particular to the passenger compartment of a car. However, more and more demands are being made on the quality of sound reproduction in motor vehicle sound reproduction arrangements.
  • the invention has for its object to design an initially specified sound reproduction arrangement so that the quality of the sound reproduction at the listening location is significantly increased with little effort.
  • the outline 1 in Fig. 1 represents the outline in the diagram of a car, the passenger compartment 2 of which can be sounded through loudspeakers 11, 12, 21 and 22 of a sound reproduction arrangement 3.
  • the loudspeakers are connected to the signal output 4 of associated sound signal delay devices 13, 14, 23 and 24 of equalizers 15, 16, 25 and 26.
  • the two equalizers are fed by the sound signal outputs 19 and 29 of a sound reproduction device 6.
  • the sound reproduction device 6 contains a tuner (not shown in more detail) which transmits programs received from a transmitter as a sound signal via the sound reproduction device and the equalizers 15 and 25 to the loudspeaker channels 17 and 18 and 27 and 28 of the loudspeakers 11, 12, 21 and 22 .
  • a cassette recorder 5 is connected to the sound reproduction device 6, the sound events sampled from the tape can be transmitted to the loudspeaker channels instead of the programs received by the tuner.
  • the loudspeakers 11 and 21 are arranged in the area of the front seats 7 and 8 of the car and the loudspeakers 12 and 22 are arranged in the area of the rear seat 9 in the passenger compartment 2 of the car.
  • the delay time T11, T12, T21 and T22 of the sound signal delay devices 13, 14, 23 and 24 is set for the sound signals generated by the sound reproduction device such that the sound signals S11, S12, S21 and S22 emitted by the associated loudspeakers 11, 12, 21 and 22 Arrive simultaneously at a specific listening location 10, in the exemplary embodiment shown in the region of the head of the driver of the motor vehicle sitting on the left front seat 8 of the motor vehicle.
  • This setting of the delay times T11, T12, T21 and T22 of the sound signal delay devices of the sound reproduction device 3 for positioning the of the Loudspeakers 11, 12, 21 and 22 emitted sound signals S11, S12, S21 and S22 on the specific listening location 10 is the basic setting of the delay times for the specific listening location 10.
  • This basic setting is shown in the diagrams a) to d) of FIG. 3 by the bars Marked 31.1 to 31.4.
  • Diagram a) shows the delay times for loudspeaker channel 27 in bar form
  • diagram b) the delay times for loudspeaker channel 17
  • diagram c) the delay times for loudspeaker channel 28
  • diagram d) the delay times for loudspeaker channel 18
  • Diagram a) of FIG. 2 shows curve 32 of the frequency response of the sound level of a sound event arriving at listening location 10 for the basic setting of sound signal delay devices 13, 14, 23 and 24 shown in FIG. 3 by bars 31.1 to 31.4.
  • the reflections and standing waves that arise during sound radiation produce a large number of dips 33 and bursts 34 in the frequency response of the level curve, which significantly impair the quality of the sound image of the transmitted sound event at the listening location 10.
  • the sound signal delay devices 13, 14, 23 and 24 contain additional setting devices 20, on which the delay time for the positioning of the listening location by a certain distance A11, A12, A21, A22 from the basic setting within the permissible, by the bars 35.1 to 35.4 of the bar graphs in FIG. 3 shown fluctuation ranges can be changed.
  • the respective storage A11 to A22 of the delay time of the individual sound signal delay devices can be set by the delay time of the basic setting in such a way that the individual sound signals S11, S12, S21 and S22 emitted by the loudspeakers 11, 12, 21 and 22 are shifted in phase to the listening location 10 in such a way that a smooth curve 36 of the frequency response of the sound level is produced at the listening location 10, as is shown in diagram b) of FIG. 2 by the smoothed frequency response curve 36 of the sound level at the listening location 10.
  • the delay times of the audio signal delay devices set in this way for smoothing the frequency response curve 36 of the sound level at the listening location 10 are shown schematically in the bar graphs a) to d) of FIG. 3 by the bars 38.1 to 38.4 and the associated shelves A11 to A22 by the bars 37.1 to 37.4 shown.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Headphones And Earphones (AREA)
EP92101687A 1991-02-20 1992-02-01 Système de reproduction du son pour reproduction du son avec effet spatial du son Expired - Lifetime EP0504562B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4105304 1991-02-20
DE4105304A DE4105304A1 (de) 1991-02-20 1991-02-20 Tonwiedergabeanordnung fuer eine tonwiedergabe mit eim raumklangeffekt

Publications (2)

Publication Number Publication Date
EP0504562A1 true EP0504562A1 (fr) 1992-09-23
EP0504562B1 EP0504562B1 (fr) 1995-05-10

Family

ID=6425497

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92101687A Expired - Lifetime EP0504562B1 (fr) 1991-02-20 1992-02-01 Système de reproduction du son pour reproduction du son avec effet spatial du son

Country Status (3)

Country Link
EP (1) EP0504562B1 (fr)
AT (1) ATE122526T1 (fr)
DE (2) DE4105304A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0627739A2 (fr) * 1993-05-31 1994-12-07 Sony Corporation Appareil d'enregistrement/de reproduction pour support en forme de disque
EP0642292A2 (fr) 1993-08-13 1995-03-08 Blaupunkt-Werke GmbH Dispositif pour la reproduction stéréophonique
DE19580412C1 (de) * 1994-04-30 1998-10-22 Deutsch Zentr Luft & Raumfahrt Verfahren und Vorrichtung zur Kompensation akustischer Verfälschungen infolge der Raumakustik bei der Tonwiedergabe durch elektro-akustische Wiedergabegeräte
CN110520323A (zh) * 2017-08-01 2019-11-29 宝马股份公司 用于控制车辆音频系统的方法、装置、移动用户设备和计算机程序

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109724811B (zh) * 2018-12-21 2020-12-18 江苏大学 一种乘坐室声品质的结构传递路径检测系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT379275B (de) * 1982-04-20 1985-12-10 Neutrik Ag Stereophone wiedergabeanlage in fahrgastraeumen von kraftfahrzeugen
FR2601839A1 (fr) * 1986-07-18 1988-01-22 Nippon Telegraph & Telephone Systeme de reproduction stereo
US4769843A (en) * 1985-03-14 1988-09-06 Nissan Motor Company, Limited Stereo signal reproducing system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5811159B2 (ja) * 1979-05-18 1983-03-01 松下電器産業株式会社 車載用音響再生装置
EP0160431B1 (fr) * 1984-04-09 1990-09-19 Pioneer Electronic Corporation Dispositif de correction de champ acoustique
JPS60254995A (ja) * 1984-05-31 1985-12-16 Pioneer Electronic Corp 車載用音場補正システム
JP2708105B2 (ja) * 1989-04-26 1998-02-04 富士通テン 株式会社 車載用音響再生装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT379275B (de) * 1982-04-20 1985-12-10 Neutrik Ag Stereophone wiedergabeanlage in fahrgastraeumen von kraftfahrzeugen
US4769843A (en) * 1985-03-14 1988-09-06 Nissan Motor Company, Limited Stereo signal reproducing system
FR2601839A1 (fr) * 1986-07-18 1988-01-22 Nippon Telegraph & Telephone Systeme de reproduction stereo

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0627739A2 (fr) * 1993-05-31 1994-12-07 Sony Corporation Appareil d'enregistrement/de reproduction pour support en forme de disque
EP0627739A3 (fr) * 1993-05-31 1996-01-17 Sony Corp Appareil d'enregistrement/de reproduction pour support en forme de disque.
US5557590A (en) * 1993-05-31 1996-09-17 Sony Corporation Auto changer capable of recording/reproducing information signals on a selective disc-shaped recording medium
EP0642292A2 (fr) 1993-08-13 1995-03-08 Blaupunkt-Werke GmbH Dispositif pour la reproduction stéréophonique
EP0642292A3 (fr) * 1993-08-13 1995-10-25 Blaupunkt Werke Gmbh Dispositif pour la reproduction stéréophonique.
DE19580412C1 (de) * 1994-04-30 1998-10-22 Deutsch Zentr Luft & Raumfahrt Verfahren und Vorrichtung zur Kompensation akustischer Verfälschungen infolge der Raumakustik bei der Tonwiedergabe durch elektro-akustische Wiedergabegeräte
CN110520323A (zh) * 2017-08-01 2019-11-29 宝马股份公司 用于控制车辆音频系统的方法、装置、移动用户设备和计算机程序

Also Published As

Publication number Publication date
ATE122526T1 (de) 1995-05-15
DE59202110D1 (de) 1995-06-14
DE4105304A1 (de) 1992-08-27
EP0504562B1 (fr) 1995-05-10

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