GB2577569B - Loudspeaker enclosure with slot/horn apparatus for improved polar response and low frequency output - Google Patents

Loudspeaker enclosure with slot/horn apparatus for improved polar response and low frequency output Download PDF

Info

Publication number
GB2577569B
GB2577569B GB1815963.2A GB201815963A GB2577569B GB 2577569 B GB2577569 B GB 2577569B GB 201815963 A GB201815963 A GB 201815963A GB 2577569 B GB2577569 B GB 2577569B
Authority
GB
United Kingdom
Prior art keywords
slot
low frequency
frequency output
loudspeaker enclosure
polar response
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.)
Active
Application number
GB1815963.2A
Other versions
GB2577569A (en
Inventor
Alexander Claber Charles
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.)
Barefaced Ltd
Original Assignee
Barefaced Ltd
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 Barefaced Ltd filed Critical Barefaced Ltd
Priority to GB1815963.2A priority Critical patent/GB2577569B/en
Publication of GB2577569A publication Critical patent/GB2577569A/en
Application granted granted Critical
Publication of GB2577569B publication Critical patent/GB2577569B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2846—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2861—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn
    • 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2861—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn
    • H04R1/2865—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn 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 
    • H04R1/28—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H04R3/14—Cross-over networks

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)
GB1815963.2A 2018-09-29 2018-09-29 Loudspeaker enclosure with slot/horn apparatus for improved polar response and low frequency output Active GB2577569B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1815963.2A GB2577569B (en) 2018-09-29 2018-09-29 Loudspeaker enclosure with slot/horn apparatus for improved polar response and low frequency output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1815963.2A GB2577569B (en) 2018-09-29 2018-09-29 Loudspeaker enclosure with slot/horn apparatus for improved polar response and low frequency output

Publications (2)

Publication Number Publication Date
GB2577569A GB2577569A (en) 2020-04-01
GB2577569B true GB2577569B (en) 2022-06-15

Family

ID=69718552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1815963.2A Active GB2577569B (en) 2018-09-29 2018-09-29 Loudspeaker enclosure with slot/horn apparatus for improved polar response and low frequency output

Country Status (1)

Country Link
GB (1) GB2577569B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB765183A (en) * 1954-01-05 1957-01-02 Donald Maynard Chave Improvements in or relating to loudspeakers
US2994399A (en) * 1958-07-17 1961-08-01 Samuel P Zimmerman Loud speaker system
FR2414275A1 (en) * 1978-01-06 1979-08-03 Chalambeau Max Acoustic enclosure for loudspeaker - has two chambers linked by internal opening and both communicating with atmosphere via shared pipe
US4251687A (en) * 1978-01-12 1981-02-17 Hans Deutsch Stereophonic sound reproducing system
US4930596A (en) * 1987-06-16 1990-06-05 Matsushita Electric Industrial Co., Ltd. Loudspeaker system
US4987601A (en) * 1988-08-10 1991-01-22 Yamaha Corporation Acoustic apparatus
WO2001062043A1 (en) * 2000-02-17 2001-08-23 American Technology Corporation Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters
JP2006180155A (en) * 2004-12-22 2006-07-06 Sharp Corp Bass reflex type speaker system for thin display

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB765183A (en) * 1954-01-05 1957-01-02 Donald Maynard Chave Improvements in or relating to loudspeakers
US2994399A (en) * 1958-07-17 1961-08-01 Samuel P Zimmerman Loud speaker system
FR2414275A1 (en) * 1978-01-06 1979-08-03 Chalambeau Max Acoustic enclosure for loudspeaker - has two chambers linked by internal opening and both communicating with atmosphere via shared pipe
US4251687A (en) * 1978-01-12 1981-02-17 Hans Deutsch Stereophonic sound reproducing system
US4930596A (en) * 1987-06-16 1990-06-05 Matsushita Electric Industrial Co., Ltd. Loudspeaker system
US4987601A (en) * 1988-08-10 1991-01-22 Yamaha Corporation Acoustic apparatus
WO2001062043A1 (en) * 2000-02-17 2001-08-23 American Technology Corporation Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters
JP2006180155A (en) * 2004-12-22 2006-07-06 Sharp Corp Bass reflex type speaker system for thin display

Also Published As

Publication number Publication date
GB2577569A (en) 2020-04-01

Similar Documents

Publication Publication Date Title
EP3836561A4 (en) Speaker unit and speaker device
IL279394A (en) Bone conduction speaker and earphone
CA195598S (en) Combined voice controlled speaker and automation device
ZA202101551B (en) An audio processor and a method for providing loudspeaker signals
EP3661064A4 (en) Radio frequency circuit and electronic device
PL3216236T3 (en) Apparatus and method for generating output signals based on an audio source signal, sound reproduction system and loudspeaker signal
EP3864857A4 (en) Electronic device including speaker and microphone
EP3857863A4 (en) Method for changing audio signal path according to external electronic device transmitting em signal and electronic device therefor
EP3383063A4 (en) Method and device for adjusting earphone sound volume
EP3399772A4 (en) Audio signal frequency response compensation method and apparatus
CA184869S (en) Combined voice controlled speaker and automation device
EP3846020A4 (en) Sound effect adjusting method and apparatus, electronic device, and storage medium
EP3566304A4 (en) Relaxation oscillator circuit for low frequency and low power dissipation
EP3850821A4 (en) Electronic device for outputting sound and operating method thereof
EP3886466A4 (en) Smart loudspeaker box playing method and device and smart loudspeaker box
GB201818455D0 (en) An enclosure
EP3729640A4 (en) Power amplifier and radio frequency device comprising the same
EP3855762A4 (en) Horn structure and magnetic circuit system thereof
EP3634011A4 (en) Electro-acoustic transducer, and electronic device
EP3579576A4 (en) Method for suppressing pop sound, audio output circuit, and terminal
EP3869823A4 (en) Loudspeaker magnetic circuit system and loudspeaker
EP3806488A4 (en) Device for outputting sound and method therefor
GB2577569B (en) Loudspeaker enclosure with slot/horn apparatus for improved polar response and low frequency output
EP3713249A4 (en) Horn for speakers and horn speaker
EP3751946A4 (en) Listening method and device