FR2269764B1 - - Google Patents

Info

Publication number
FR2269764B1
FR2269764B1 FR7415359A FR7415359A FR2269764B1 FR 2269764 B1 FR2269764 B1 FR 2269764B1 FR 7415359 A FR7415359 A FR 7415359A FR 7415359 A FR7415359 A FR 7415359A FR 2269764 B1 FR2269764 B1 FR 2269764B1
Authority
FR
France
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
FR7415359A
Other languages
French (fr)
Other versions
FR2269764A1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7415359A priority Critical patent/FR2269764A1/fr
Priority to DK186375A priority patent/DK144987C/da
Publication of FR2269764A1 publication Critical patent/FR2269764A1/fr
Application granted granted Critical
Publication of FR2269764B1 publication Critical patent/FR2269764B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H7/00—Measuring reverberation time ; room acoustic measurements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
FR7415359A 1974-05-03 1974-05-03 Sound reverberation period measuring system - has two parallel analyser chains for start and end of periods Granted FR2269764A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7415359A FR2269764A1 (en) 1974-05-03 1974-05-03 Sound reverberation period measuring system - has two parallel analyser chains for start and end of periods
DK186375A DK144987C (da) 1974-05-03 1975-04-29 Apparat til maaling af akustisk efterklangstid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7415359A FR2269764A1 (en) 1974-05-03 1974-05-03 Sound reverberation period measuring system - has two parallel analyser chains for start and end of periods

Publications (2)

Publication Number Publication Date
FR2269764A1 FR2269764A1 (en) 1975-11-28
FR2269764B1 true FR2269764B1 (et) 1978-07-07

Family

ID=9138426

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415359A Granted FR2269764A1 (en) 1974-05-03 1974-05-03 Sound reverberation period measuring system - has two parallel analyser chains for start and end of periods

Country Status (2)

Country Link
DK (1) DK144987C (et)
FR (1) FR2269764A1 (et)

Also Published As

Publication number Publication date
DK186375A (da) 1975-11-04
FR2269764A1 (en) 1975-11-28
DK144987C (da) 1982-12-13
DK144987B (da) 1982-07-19

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Legal Events

Date Code Title Description
TP Transmission of property
CL Concession to grant licenses
ST Notification of lapse