FR712546A - Improvements in recording and hearing sound films - Google Patents

Improvements in recording and hearing sound films

Info

Publication number
FR712546A
FR712546A FR712546DA FR712546A FR 712546 A FR712546 A FR 712546A FR 712546D A FR712546D A FR 712546DA FR 712546 A FR712546 A FR 712546A
Authority
FR
France
Prior art keywords
recording
hearing sound
sound films
films
hearing
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
Other languages
French (fr)
Inventor
Eugene-Alexandre Huguenard
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 filed Critical
Application granted granted Critical
Publication of FR712546A publication Critical patent/FR712546A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR712546D 1930-06-18 1930-06-18 Improvements in recording and hearing sound films Expired FR712546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR712546T 1930-06-18

Publications (1)

Publication Number Publication Date
FR712546A true FR712546A (en) 1931-10-03

Family

ID=9080233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR712546D Expired FR712546A (en) 1930-06-18 1930-06-18 Improvements in recording and hearing sound films

Country Status (1)

Country Link
FR (1) FR712546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972491C (en) * 1942-03-18 1959-07-30 Philips Nv Electrical device for stereophonic sound reproduction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972491C (en) * 1942-03-18 1959-07-30 Philips Nv Electrical device for stereophonic sound reproduction

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