FR884414A - Perfectionnements apportés aux enregistrements sonores - Google Patents

Perfectionnements apportés aux enregistrements sonores

Info

Publication number
FR884414A
FR884414A FR884414DA FR884414A FR 884414 A FR884414 A FR 884414A FR 884414D A FR884414D A FR 884414DA FR 884414 A FR884414 A FR 884414A
Authority
FR
France
Prior art keywords
sound recordings
recordings
sound
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
English (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.)
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
Application granted granted Critical
Publication of FR884414A publication Critical patent/FR884414A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR884414D 1941-07-25 1942-07-23 Perfectionnements apportés aux enregistrements sonores Expired FR884414A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL884414X 1941-07-25

Publications (1)

Publication Number Publication Date
FR884414A true FR884414A (fr) 1943-08-12

Family

ID=19853675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR884414D Expired FR884414A (fr) 1941-07-25 1942-07-23 Perfectionnements apportés aux enregistrements sonores

Country Status (1)

Country Link
FR (1) FR884414A (fr)

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