JPS55112097A - Acoustic system - Google Patents

Acoustic system

Info

Publication number
JPS55112097A
JPS55112097A JP1847179A JP1847179A JPS55112097A JP S55112097 A JPS55112097 A JP S55112097A JP 1847179 A JP1847179 A JP 1847179A JP 1847179 A JP1847179 A JP 1847179A JP S55112097 A JPS55112097 A JP S55112097A
Authority
JP
Japan
Prior art keywords
circuit
distortion component
output
terminal
supplied
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
JP1847179A
Other languages
Japanese (ja)
Inventor
Kiyofumi Inanaga
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP1847179A priority Critical patent/JPS55112097A/en
Publication of JPS55112097A publication Critical patent/JPS55112097A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

PURPOSE:To decrease the distortion component by detecting the distortion component contained in the acoustic output which is radiated from the speaker unit and also providing the feedback control system using the detection output signal. CONSTITUTION:Microphone 6 is provided to the side surface of speaker unit 1, and this output is supplied to equivalent circuit 7. The output of circuit 7 is supplied to terminal 4a on one side of comparison arithmetic circuit 4, and the original signal is applied to terminal 4b on the other side to perform the substraction. And this output is applied to terminal 3b of signal addition circuit 3. Circuit 3 adds and mixes the distortion component from circuit 4 to the original signal supplied to terminal 3a in the opposite polarity in order to decrease the distortion component of the original signal. In such way, the distortion component caused by the nonlinearity of the speaker unit can be eliminated, thus improving the sound quality.
JP1847179A 1979-02-21 1979-02-21 Acoustic system Pending JPS55112097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1847179A JPS55112097A (en) 1979-02-21 1979-02-21 Acoustic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1847179A JPS55112097A (en) 1979-02-21 1979-02-21 Acoustic system

Publications (1)

Publication Number Publication Date
JPS55112097A true JPS55112097A (en) 1980-08-29

Family

ID=11972550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1847179A Pending JPS55112097A (en) 1979-02-21 1979-02-21 Acoustic system

Country Status (1)

Country Link
JP (1) JPS55112097A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001682A1 (en) * 1982-10-14 1984-04-26 Matsushita Electric Industrial Co Ltd Speaker
JPS6137688U (en) * 1984-08-10 1986-03-08 アイワ株式会社 acoustic negative feedback device
JPS61192198A (en) * 1985-02-20 1986-08-26 Fujitsu Ten Ltd Accoustic sensitivity correction circuit
WO2000002420A1 (en) * 1998-07-02 2000-01-13 Acoustic Technologies, Inc. Apparatus and method for adjusting audio equipment in acoustic environments
JP2015226195A (en) * 2014-05-28 2015-12-14 株式会社オーディオテクニカ MFB speaker device and sound wave detection microphone

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317052A (en) * 1976-07-30 1978-02-16 Toshiba Corp Multivibrator circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317052A (en) * 1976-07-30 1978-02-16 Toshiba Corp Multivibrator circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001682A1 (en) * 1982-10-14 1984-04-26 Matsushita Electric Industrial Co Ltd Speaker
JPS6137688U (en) * 1984-08-10 1986-03-08 アイワ株式会社 acoustic negative feedback device
JPS61192198A (en) * 1985-02-20 1986-08-26 Fujitsu Ten Ltd Accoustic sensitivity correction circuit
WO2000002420A1 (en) * 1998-07-02 2000-01-13 Acoustic Technologies, Inc. Apparatus and method for adjusting audio equipment in acoustic environments
US6111957A (en) * 1998-07-02 2000-08-29 Acoustic Technologies, Inc. Apparatus and method for adjusting audio equipment in acoustic environments
JP2015226195A (en) * 2014-05-28 2015-12-14 株式会社オーディオテクニカ MFB speaker device and sound wave detection microphone

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