GB2538525B - Signal processing device for reducing acoustic feedback in a signal output from a speaker - Google Patents

Signal processing device for reducing acoustic feedback in a signal output from a speaker

Info

Publication number
GB2538525B
GB2538525B GB1508591.3A GB201508591A GB2538525B GB 2538525 B GB2538525 B GB 2538525B GB 201508591 A GB201508591 A GB 201508591A GB 2538525 B GB2538525 B GB 2538525B
Authority
GB
United Kingdom
Prior art keywords
speaker
processing device
acoustic feedback
signal processing
reducing acoustic
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
GB1508591.3A
Other versions
GB2538525A (en
GB201508591D0 (en
Inventor
O'flaherty Joseph
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.)
Thales Holdings UK PLC
Original Assignee
Thales Holdings UK PLC
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 Thales Holdings UK PLC filed Critical Thales Holdings UK PLC
Priority to GB1508591.3A priority Critical patent/GB2538525B/en
Publication of GB201508591D0 publication Critical patent/GB201508591D0/en
Publication of GB2538525A publication Critical patent/GB2538525A/en
Application granted granted Critical
Publication of GB2538525B publication Critical patent/GB2538525B/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB1508591.3A 2015-05-19 2015-05-19 Signal processing device for reducing acoustic feedback in a signal output from a speaker Active GB2538525B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1508591.3A GB2538525B (en) 2015-05-19 2015-05-19 Signal processing device for reducing acoustic feedback in a signal output from a speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1508591.3A GB2538525B (en) 2015-05-19 2015-05-19 Signal processing device for reducing acoustic feedback in a signal output from a speaker

Publications (3)

Publication Number Publication Date
GB201508591D0 GB201508591D0 (en) 2015-07-01
GB2538525A GB2538525A (en) 2016-11-23
GB2538525B true GB2538525B (en) 2017-06-07

Family

ID=53506019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1508591.3A Active GB2538525B (en) 2015-05-19 2015-05-19 Signal processing device for reducing acoustic feedback in a signal output from a speaker

Country Status (1)

Country Link
GB (1) GB2538525B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022031280A1 (en) * 2020-08-05 2022-02-10 Hewlett-Packard Development Company, L.P. Peripheral microphones

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109218919B (en) * 2018-08-23 2020-09-18 厦门傅里叶电子有限公司 Loudspeaker amplitude protection module based on android system audio framework
CN110473509B (en) * 2019-08-19 2021-11-12 深圳南云微电子有限公司 Peak current type buzzer drive circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08223684A (en) * 1995-02-17 1996-08-30 Sony Corp Howling detection device
WO2011154808A2 (en) * 2010-06-08 2011-12-15 Music Group Ip, Ltd. System and method for increasing a feedback detection rate in an audio system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08223684A (en) * 1995-02-17 1996-08-30 Sony Corp Howling detection device
WO2011154808A2 (en) * 2010-06-08 2011-12-15 Music Group Ip, Ltd. System and method for increasing a feedback detection rate in an audio system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022031280A1 (en) * 2020-08-05 2022-02-10 Hewlett-Packard Development Company, L.P. Peripheral microphones

Also Published As

Publication number Publication date
GB2538525A (en) 2016-11-23
GB201508591D0 (en) 2015-07-01

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