WO2001065533A3 - Acoustic diffuser free from resonance - Google Patents

Acoustic diffuser free from resonance Download PDF

Info

Publication number
WO2001065533A3
WO2001065533A3 PCT/IT2001/000086 IT0100086W WO0165533A3 WO 2001065533 A3 WO2001065533 A3 WO 2001065533A3 IT 0100086 W IT0100086 W IT 0100086W WO 0165533 A3 WO0165533 A3 WO 0165533A3
Authority
WO
WIPO (PCT)
Prior art keywords
container
resonance
loudspeaker
another
acoustic diffuser
Prior art date
Application number
PCT/IT2001/000086
Other languages
French (fr)
Other versions
WO2001065533A2 (en
Inventor
Domenico Fiorentino
Original Assignee
Domenico Fiorentino
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 Domenico Fiorentino filed Critical Domenico Fiorentino
Publication of WO2001065533A2 publication Critical patent/WO2001065533A2/en
Publication of WO2001065533A3 publication Critical patent/WO2001065533A3/en

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
    • 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
    • H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure 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
    • 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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Physical Water Treatments (AREA)

Abstract

An acoustic diffuser free from resonance in the frequency ranges of the acoustic transducers operating at low and medium frequencies with limpid high fidelity audio response, comprising an outside container and at least a loudspeaker, characterized in that the container has a shape different from the usual parallelepiped, three side walls of said container are not parallel to one another and their inside surfaces are not even as they are formed of several curvilinear lengths connected to one another and provided with points and recesses disposed with high discontinuity both horizontally and vertically, and a front panel is applied to a front opening, thus forming the fourth side wall carrying said loudspeaker, a cap and a base being also provided.
PCT/IT2001/000086 2000-02-28 2001-02-23 Acoustic diffuser free from resonance WO2001065533A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000RM000102A IT1315850B1 (en) 2000-02-28 2000-02-28 RESONANCE-FREE SOUND DIFFUSER.
ITRM2000A000102 2000-02-28

Publications (2)

Publication Number Publication Date
WO2001065533A2 WO2001065533A2 (en) 2001-09-07
WO2001065533A3 true WO2001065533A3 (en) 2002-03-28

Family

ID=11454484

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2001/000086 WO2001065533A2 (en) 2000-02-28 2001-02-23 Acoustic diffuser free from resonance

Country Status (2)

Country Link
IT (1) IT1315850B1 (en)
WO (1) WO2001065533A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005029917A1 (en) * 2003-09-18 2005-03-31 Norton John M Audio loudspeaker enclosure
GB2408404A (en) * 2003-11-18 2005-05-25 Sonaptic Ltd Fabrication of enclosures for sonic devices, e.g. speakers
GB2510010A (en) 2012-10-08 2014-07-23 Flare Audio Holdings Ltd A housing and/or a frame or chassis for a loudspeaker or a microphone
SG11201507803WA (en) 2013-03-22 2015-10-29 Campobello Ltd An acoustic device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277008A (en) * 1993-04-06 1994-10-12 Michael Stuart Mason Panels for improving acoustic performance of an enclosure
WO1996006514A1 (en) * 1994-08-23 1996-02-29 Polk Investment Corporation Ported loudspeaker system and method with reduced air turbulence
US5661271A (en) * 1995-06-05 1997-08-26 Moser; Charles E. Acoustic speaker enclosure having a stacked construction
NL1003216C1 (en) * 1996-05-28 1997-12-03 Carolus Johannes Everardus Van Housing for electrodynamic loudspeakers
FR2777409A1 (en) * 1998-04-10 1999-10-15 Alain Pratali Wood panel acoustic enclosure manufacture technique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277008A (en) * 1993-04-06 1994-10-12 Michael Stuart Mason Panels for improving acoustic performance of an enclosure
WO1996006514A1 (en) * 1994-08-23 1996-02-29 Polk Investment Corporation Ported loudspeaker system and method with reduced air turbulence
US5661271A (en) * 1995-06-05 1997-08-26 Moser; Charles E. Acoustic speaker enclosure having a stacked construction
NL1003216C1 (en) * 1996-05-28 1997-12-03 Carolus Johannes Everardus Van Housing for electrodynamic loudspeakers
FR2777409A1 (en) * 1998-04-10 1999-10-15 Alain Pratali Wood panel acoustic enclosure manufacture technique

Also Published As

Publication number Publication date
IT1315850B1 (en) 2003-03-26
WO2001065533A2 (en) 2001-09-07
ITRM20000102A0 (en) 2000-02-28
ITRM20000102A1 (en) 2001-08-28

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