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GB201011714D0 - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
GB201011714D0
GB201011714D0 GBGB1011714.1A GB201011714A GB201011714D0 GB 201011714 D0 GB201011714 D0 GB 201011714D0 GB 201011714 A GB201011714 A GB 201011714A GB 201011714 D0 GB201011714 D0 GB 201011714D0
Authority
GB
United Kingdom
Prior art keywords
transducer
high frequency
main transducer
phase plug
main
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.)
Ceased
Application number
GBGB1011714.1A
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.)
ROBERTS DAVIES R
Original Assignee
ROBERTS DAVIES R
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 ROBERTS DAVIES R filed Critical ROBERTS DAVIES R
Priority to GBGB1011714.1A priority Critical patent/GB201011714D0/en
Priority to GB1013648.9A priority patent/GB2482204B/en
Publication of GB201011714D0 publication Critical patent/GB201011714D0/en
Ceased legal-status Critical Current

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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means 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
    • 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
    • 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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/34—Directing or guiding sound by means of a phase plug

Landscapes

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

Abstract

A loudspeaker enclosure design includes a phase plug which provides additional high frequency driver housing and horn loading of the main transducer in one device. The design includes a wave guide assembly that when coupled with the phase plug divides the acoustic wave created by the transducer into two equal horizontal channels to form a double horn loading of the main transducer. The horn loading and phase correction this achieves greatly improves the efficiency of the transducer and gives a flat frequency response. Two additional high frequency drivers are installed in the front of the phase plug assembly which is directly in front of the main transducer. The high frequency transducers are divided on a vertical plane opposite to the main transducer to reduce destructive interference. The mounting of the high frequency drivers directly in front of the main transducer ensures correct time alignment can be achieved and reduces the enclosure size. A number of enclosures can be arranged together to form a PA array.
GBGB1011714.1A 2010-07-13 2010-07-13 Loudspeaker Ceased GB201011714D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB1011714.1A GB201011714D0 (en) 2010-07-13 2010-07-13 Loudspeaker
GB1013648.9A GB2482204B (en) 2010-07-13 2010-08-16 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1011714.1A GB201011714D0 (en) 2010-07-13 2010-07-13 Loudspeaker

Publications (1)

Publication Number Publication Date
GB201011714D0 true GB201011714D0 (en) 2010-08-25

Family

ID=42712264

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1011714.1A Ceased GB201011714D0 (en) 2010-07-13 2010-07-13 Loudspeaker
GB1013648.9A Expired - Fee Related GB2482204B (en) 2010-07-13 2010-08-16 Loudspeaker

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1013648.9A Expired - Fee Related GB2482204B (en) 2010-07-13 2010-08-16 Loudspeaker

Country Status (1)

Country Link
GB (2) GB201011714D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101973488B1 (en) 2014-09-30 2019-04-29 애플 인크. Loudspeaker with reduced audio coloration caused by reflections from a surface
US10524044B2 (en) 2014-09-30 2019-12-31 Apple Inc. Airflow exit geometry
USRE49437E1 (en) 2014-09-30 2023-02-28 Apple Inc. Audio driver and power supply unit architecture
US10631071B2 (en) 2016-09-23 2020-04-21 Apple Inc. Cantilevered foot for electronic device
WO2019060769A1 (en) * 2017-09-21 2019-03-28 Presonus Audio Electronics, Inc. Constant-directivity two way wedge loudspeaker system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5109423A (en) * 1988-06-30 1992-04-28 Jacobson Larry L Audio system with amplifier and signal device
US5125732A (en) * 1988-06-30 1992-06-30 Jacobson Larry L Motion picture exhibition facility
US5872339A (en) * 1997-08-28 1999-02-16 Hanson; Charles Anthony High performance loudspeaker system
WO2002074030A1 (en) * 2001-03-07 2002-09-19 Harman International Industries, Inc. Sound system having a hf horn coaxially aligned in the mouth of a midrange horn

Also Published As

Publication number Publication date
GB201013648D0 (en) 2010-09-29
GB2482204A (en) 2012-01-25
GB2482204B (en) 2012-10-31

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)