AU6048473A - Microphone assembly operable in directional and nondirectional modes - Google Patents

Microphone assembly operable in directional and nondirectional modes

Info

Publication number
AU6048473A
AU6048473A AU60484/73A AU6048473A AU6048473A AU 6048473 A AU6048473 A AU 6048473A AU 60484/73 A AU60484/73 A AU 60484/73A AU 6048473 A AU6048473 A AU 6048473A AU 6048473 A AU6048473 A AU 6048473A
Authority
AU
Australia
Prior art keywords
nondirectional
directional
modes
microphone assembly
assembly operable
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.)
Expired
Application number
AU60484/73A
Other versions
AU478572B2 (en
Inventor
Clifford Killion Mead
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.)
Industrial Research Products Inc
Original Assignee
Industrial Research Products Inc
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 Industrial Research Products Inc filed Critical Industrial Research Products Inc
Application granted granted Critical
Publication of AU478572B2 publication Critical patent/AU478572B2/en
Publication of AU6048473A publication Critical patent/AU6048473A/en
Expired 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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/402—Arrangements for obtaining a desired directivity characteristic using contructional 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
    • H04R1/32—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
    • H04R1/38—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 in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
AU60484/73A 1973-02-05 1973-09-20 Microphone assembly operable in directional and nondirectional modes Expired AU478572B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00329673A US3835263A (en) 1973-02-05 1973-02-05 Microphone assembly operable in directional and non-directional modes
USUS329,673 1973-02-05

Publications (2)

Publication Number Publication Date
AU478572B2 AU478572B2 (en) 1975-03-20
AU6048473A true AU6048473A (en) 1975-03-20

Family

ID=

Also Published As

Publication number Publication date
NL167832C (en) 1982-01-18
ATA820273A (en) 1976-01-15
NL7317130A (en) 1974-08-07
FR2216745A1 (en) 1974-08-30
DK149294B (en) 1986-04-21
US3835263A (en) 1974-09-10
FR2216745B1 (en) 1978-11-17
AT332465B (en) 1976-09-27
JPS49107723A (en) 1974-10-14
GB1430200A (en) 1976-03-31
DE2400666A1 (en) 1974-08-08
JPS5317444B2 (en) 1978-06-08
DE2400666B2 (en) 1977-05-18
CA991738A (en) 1976-06-22
CH587594A5 (en) 1977-05-13
NL167832B (en) 1981-08-17
DK149294C (en) 1986-09-29

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