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GB2016861A - Rumble-free microphone combination - Google Patents

Rumble-free microphone combination

Info

Publication number
GB2016861A
GB2016861A GB7908360A GB7908360A GB2016861A GB 2016861 A GB2016861 A GB 2016861A GB 7908360 A GB7908360 A GB 7908360A GB 7908360 A GB7908360 A GB 7908360A GB 2016861 A GB2016861 A GB 2016861A
Authority
GB
United Kingdom
Prior art keywords
microphone
rumble
partition
free microphone
microphone combination
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.)
Withdrawn
Application number
GB7908360A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB2016861A publication Critical patent/GB2016861A/en
Withdrawn legal-status Critical Current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
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The combination comprises two substantially identical capacitor microphone elements (1, 2) relatively located in a parallel mirror-image arrangement, the diaphragm (3) of each microphone element communicating with an air volume (6) and the two air volumes being acoustically isolated by a partition (4, 5, 7). The two microphone elements are suitably electrically interconnected so that they are driven in phase for desired sound waves and in phase opposition for undesired mechanical noise. An associated electrical microphone circuit (12) is accommodated within the partition. <IMAGE>
GB7908360A 1978-03-13 1979-03-09 Rumble-free microphone combination Withdrawn GB2016861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7802687A NL7802687A (en) 1978-03-13 1978-03-13 BUNCH-FREE MICROPHONE COMBINATION CONTAINS TWO MICROPHONE ELEMENTS.

Publications (1)

Publication Number Publication Date
GB2016861A true GB2016861A (en) 1979-09-26

Family

ID=19830478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7908360A Withdrawn GB2016861A (en) 1978-03-13 1979-03-09 Rumble-free microphone combination

Country Status (9)

Country Link
JP (1) JPS54126526A (en)
AT (1) ATA183379A (en)
AU (1) AU4507579A (en)
DE (1) DE2909065A1 (en)
DK (1) DK98479A (en)
FR (1) FR2420266A1 (en)
GB (1) GB2016861A (en)
IT (1) IT1110405B (en)
NL (1) NL7802687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006918A1 (en) * 1985-05-09 1986-11-20 Plessey Overseas Limited Improvements in or relating to microphones

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044037B (en) * 1978-12-23 1983-03-23 Tokyo Shibaura Electric Co Electrostatic microphone
US4443666A (en) * 1980-11-24 1984-04-17 Gentex Corporation Electret microphone assembly
DE3429147C2 (en) * 1984-08-08 1987-04-02 Friedrich 6650 Homburg Müller Arrangement for acoustic feedback of loudspeakers
JPH01142295U (en) * 1988-03-19 1989-09-29
DE19843731C2 (en) * 1998-09-24 2001-10-25 Sennheiser Electronic Sound conversion device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006918A1 (en) * 1985-05-09 1986-11-20 Plessey Overseas Limited Improvements in or relating to microphones

Also Published As

Publication number Publication date
DK98479A (en) 1979-09-14
JPS54126526A (en) 1979-10-01
NL7802687A (en) 1979-09-17
ATA183379A (en) 1980-04-15
IT1110405B (en) 1985-12-23
AU4507579A (en) 1979-09-20
IT7920890A0 (en) 1979-03-09
DE2909065A1 (en) 1979-09-20
FR2420266A1 (en) 1979-10-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)