WO2003034778A3 - Elektroakustisches gerät und qualitätskontrollverfahren - Google Patents

Elektroakustisches gerät und qualitätskontrollverfahren Download PDF

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Publication number
WO2003034778A3
WO2003034778A3 PCT/DE2002/003733 DE0203733W WO03034778A3 WO 2003034778 A3 WO2003034778 A3 WO 2003034778A3 DE 0203733 W DE0203733 W DE 0203733W WO 03034778 A3 WO03034778 A3 WO 03034778A3
Authority
WO
WIPO (PCT)
Prior art keywords
distortion
linear
freedom
electrodynamic converter
monitoring
Prior art date
Application number
PCT/DE2002/003733
Other languages
English (en)
French (fr)
Other versions
WO2003034778A2 (de
Inventor
Kolja Willimzik
Original Assignee
Kolja Willimzik
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 Kolja Willimzik filed Critical Kolja Willimzik
Priority to DE10294787T priority Critical patent/DE10294787D2/de
Priority to AU2002339342A priority patent/AU2002339342A1/en
Publication of WO2003034778A2 publication Critical patent/WO2003034778A2/de
Publication of WO2003034778A3 publication Critical patent/WO2003034778A3/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02—Transducers using more than one principle simultaneously
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2892—Mountings or supports for transducers
    • H04R1/2896—Mountings or supports for transducers for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

Die Erfindung betrifft ein elektroakustisches Gerät grösster Verzerrungsfreiheit und ein Qualitätskontrollverfahren zur Optimierung, Einstellung und Überprüfung der Verzerrungsfreiheit dieses Geräts. Die lineare und nichtlineare Verzerrungsfreiheit des Geräts wird durch elektrodynamische Wandler mit einer resonanz- und reflexionsgedämpften Zentriermembran, eine direkte Ankopplung des Antriebs der elektrodynamischen Wandler an ein steifes Element hoher Masse, das zusammen mit den elektrodynamischen Wandlern von dem Gehäuse oder der Schallwand des Geräts entkoppelt ist, und durch Gehäusewände oder eine Schallwand aus einer Glasschicht, dämpfenden Schichten und weiteren harten Schichten, erreicht. Zur Raumanpassung werden mindestens zwei Wandler so angesteuert, dass das Abstrahlverhalten bei beliebigen Frequenzen zwischen Monopol- und Dipolcharakteristik wechseln kann. Zur Optimierung, Überprüfung und zur Anpassung an die Raumakustik wird aus der Impulsantwort ein dreidimensionales Diagramm errechnet, das die linearen Verzerrungen mit beliebig variierbarer Auflösung im Frequenz- und Zeitbereich darstellt. Die nichtlinearen Verzerrungen werden der dreidimensionale Darstellung in Form von Farb- oder Graustufen überlagert.
PCT/DE2002/003733 2001-10-08 2002-10-02 Elektroakustisches gerät und qualitätskontrollverfahren WO2003034778A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10294787T DE10294787D2 (de) 2001-10-08 2002-10-02 Elektroakustisches Gerät und Qualitätskontrollverfahren
AU2002339342A AU2002339342A1 (en) 2001-10-08 2002-10-02 Electroacoustic device and method of quality control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10149518.8 2001-10-08
DE2001149518 DE10149518A1 (de) 2001-10-08 2001-10-08 Elektroakustisches Gerät und Qualitätskontrollverfahren

Publications (2)

Publication Number Publication Date
WO2003034778A2 WO2003034778A2 (de) 2003-04-24
WO2003034778A3 true WO2003034778A3 (de) 2004-11-25

Family

ID=7701756

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/003733 WO2003034778A2 (de) 2001-10-08 2002-10-02 Elektroakustisches gerät und qualitätskontrollverfahren

Country Status (3)

Country Link
AU (1) AU2002339342A1 (de)
DE (2) DE10149518A1 (de)
WO (1) WO2003034778A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2488758A (en) 2011-03-02 2012-09-12 Gp Acoustics Uk Ltd Bass reflex loudspeaker has acoustic leakage in walls of port duct
GB2491108B (en) 2011-05-18 2014-06-04 Gp Acoustics Uk Ltd Loudspeaker
ITFI20130060A1 (it) * 2013-03-21 2014-09-22 Claudio Lastrucci "diffusore acustico"

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62147900A (ja) * 1985-12-21 1987-07-01 Shuji Kanari スピ−カ−ユニツトの共振防止装置
FR2625639A1 (fr) * 1987-12-30 1989-07-07 Kobus Stanislas Dispositif de fixation pour haut-parleur electrodynamique
US4869340A (en) * 1987-06-22 1989-09-26 Coudoux Christian A Very high performance loudspeaker enclosures
NL8902557A (nl) * 1989-10-16 1991-05-16 Rob Meyst Luidsprekersysteem.
EP0459682A2 (de) * 1990-05-31 1991-12-04 Joe Speight Akroyd Lautsprechergehäuse mit energieabsorbierenden Mitteln
EP0516471A1 (de) * 1991-05-31 1992-12-02 Kh Technology Corporation Magnetische Antriebsystem für Lautsprecher

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62147900A (ja) * 1985-12-21 1987-07-01 Shuji Kanari スピ−カ−ユニツトの共振防止装置
US4869340A (en) * 1987-06-22 1989-09-26 Coudoux Christian A Very high performance loudspeaker enclosures
FR2625639A1 (fr) * 1987-12-30 1989-07-07 Kobus Stanislas Dispositif de fixation pour haut-parleur electrodynamique
NL8902557A (nl) * 1989-10-16 1991-05-16 Rob Meyst Luidsprekersysteem.
EP0459682A2 (de) * 1990-05-31 1991-12-04 Joe Speight Akroyd Lautsprechergehäuse mit energieabsorbierenden Mitteln
EP0516471A1 (de) * 1991-05-31 1992-12-02 Kh Technology Corporation Magnetische Antriebsystem für Lautsprecher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 382 (E - 564) 12 December 1987 (1987-12-12) *

Also Published As

Publication number Publication date
WO2003034778A2 (de) 2003-04-24
DE10294787D2 (de) 2004-08-26
AU2002339342A1 (en) 2003-04-28
DE10149518A1 (de) 2003-04-10

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