FR88190E - Improvements to devices for studying acoustic phenomena - Google Patents

Improvements to devices for studying acoustic phenomena

Info

Publication number
FR88190E
FR88190E FR13933A FR13933A FR88190E FR 88190 E FR88190 E FR 88190E FR 13933 A FR13933 A FR 13933A FR 13933 A FR13933 A FR 13933A FR 88190 E FR88190 E FR 88190E
Authority
FR
France
Prior art keywords
devices
acoustic phenomena
studying
studying acoustic
phenomena
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
FR13933A
Other languages
French (fr)
Inventor
Jean-Claude Lafon
Marc Richard
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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
Priority to FR971552A priority Critical patent/FR1403687A/en
Application filed by Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR13933A priority patent/FR88190E/en
Application granted granted Critical
Publication of FR88190E publication Critical patent/FR88190E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/08—Limiting rate of change of amplitude
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR13933A 1964-04-20 1965-04-21 Improvements to devices for studying acoustic phenomena Expired FR88190E (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR971552A FR1403687A (en) 1964-04-20 1964-04-20 Improvements to devices for studying acoustic phenomena
FR13933A FR88190E (en) 1964-04-20 1965-04-21 Improvements to devices for studying acoustic phenomena

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR971552A FR1403687A (en) 1964-04-20 1964-04-20 Improvements to devices for studying acoustic phenomena
FR13933A FR88190E (en) 1964-04-20 1965-04-21 Improvements to devices for studying acoustic phenomena

Publications (1)

Publication Number Publication Date
FR88190E true FR88190E (en) 1966-06-03

Family

ID=34712650

Family Applications (2)

Application Number Title Priority Date Filing Date
FR971552A Expired FR1403687A (en) 1964-04-20 1964-04-20 Improvements to devices for studying acoustic phenomena
FR13933A Expired FR88190E (en) 1964-04-20 1965-04-21 Improvements to devices for studying acoustic phenomena

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR971552A Expired FR1403687A (en) 1964-04-20 1964-04-20 Improvements to devices for studying acoustic phenomena

Country Status (1)

Country Link
FR (2) FR1403687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527925A1 (en) * 1982-06-07 1983-12-09 Utzmann Rene Audio prosthesis with output signal control - has operational amplifier system which compares input signal variations with noise ceiling value

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527925A1 (en) * 1982-06-07 1983-12-09 Utzmann Rene Audio prosthesis with output signal control - has operational amplifier system which compares input signal variations with noise ceiling value

Also Published As

Publication number Publication date
FR1403687A (en) 1965-06-25

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