JPS54131915A - Acoustic apparatus - Google Patents

Acoustic apparatus

Info

Publication number
JPS54131915A
JPS54131915A JP3940178A JP3940178A JPS54131915A JP S54131915 A JPS54131915 A JP S54131915A JP 3940178 A JP3940178 A JP 3940178A JP 3940178 A JP3940178 A JP 3940178A JP S54131915 A JPS54131915 A JP S54131915A
Authority
JP
Japan
Prior art keywords
comparator
speaker
channel
input
reproduction
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.)
Pending
Application number
JP3940178A
Other languages
Japanese (ja)
Inventor
Akira Ozaki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3940178A priority Critical patent/JPS54131915A/en
Publication of JPS54131915A publication Critical patent/JPS54131915A/en
Pending 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
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To perform level matching of plural channels readily and automatically by providing a comparator, matching the output outside a reference channel to the channel of the reference channel and automatically making the levels variable. CONSTITUTION:Reference reproduction channel input is reproduced with a speaker 9 and is supplied via rectifier parts D2, C2, R6 to a comparator 11, and the other channel input 2 is supplied via rectifier parts D1, C1, R5 to the comparator 11. Both signals are compared of their magnitudes in the comparator 11 and according to the difference thereof, the gain of an electronic volume 12 is controlled and the input are reproduced with a speaker 10. Hence, when the voices from a microphone are inputted to the input part 2 and the performances, etc. having been recorded to the input part 1, then the reproduction output from the speaker 10 may be made constant with respect to the reproduction level of the speaker 9 and level matching may be preformed automatically.
JP3940178A 1978-04-03 1978-04-03 Acoustic apparatus Pending JPS54131915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3940178A JPS54131915A (en) 1978-04-03 1978-04-03 Acoustic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3940178A JPS54131915A (en) 1978-04-03 1978-04-03 Acoustic apparatus

Publications (1)

Publication Number Publication Date
JPS54131915A true JPS54131915A (en) 1979-10-13

Family

ID=12551961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3940178A Pending JPS54131915A (en) 1978-04-03 1978-04-03 Acoustic apparatus

Country Status (1)

Country Link
JP (1) JPS54131915A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11749243B2 (en) 2016-07-22 2023-09-05 Dolby Laboratories Licensing Corporation Network-based processing and distribution of multimedia content of a live musical performance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11749243B2 (en) 2016-07-22 2023-09-05 Dolby Laboratories Licensing Corporation Network-based processing and distribution of multimedia content of a live musical performance

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