WO2001065533A3 - Acoustic diffuser free from resonance - Google Patents
Acoustic diffuser free from resonance Download PDFInfo
- 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
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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM2000A000102 | 2000-02-28 | ||
IT2000RM000102A IT1315850B1 (en) | 2000-02-28 | 2000-02-28 | RESONANCE-FREE SOUND DIFFUSER. |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050084127A1 (en) * | 2003-09-18 | 2005-04-21 | 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 |
CN105144743B (en) | 2013-03-22 | 2019-03-29 | 闪耀声音技术有限公司 | Acoustic apparatus |
Citations (5)
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 |
-
2000
- 2000-02-28 IT IT2000RM000102A patent/IT1315850B1/en active
-
2001
- 2001-02-23 WO PCT/IT2001/000086 patent/WO2001065533A2/en active Application Filing
Patent Citations (5)
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 |
---|---|
ITRM20000102A1 (en) | 2001-08-28 |
WO2001065533A2 (en) | 2001-09-07 |
ITRM20000102A0 (en) | 2000-02-28 |
IT1315850B1 (en) | 2003-03-26 |
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