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
Grant status
Application
Patent type
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
Inventor
Kiyofumi Inanaga
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/002Damping circuit arrangements for transducers, e.g. motional feedback circuits

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 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 Ind Co Ltd Speaker
JPS6137688U (en) * 1984-08-10 1986-03-08
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 apparatus and sound wave detecting 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 Ind Co Ltd Speaker
JPS6137688U (en) * 1984-08-10 1986-03-08
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 apparatus and sound wave detecting microphone

Similar Documents

Publication Publication Date Title
JPH0490298A (en) Hearing aid
Cherry et al. Contribution to a study of the “Cocktail party problem”
JPS5689194A (en) Secondary acoustic pressure inclination unidirectional microphone system
JPH01282996A (en) Detection driving system in noise eliminating device
JPH02224498A (en) Active noise canceler
JPS5863207A (en) Sound reproducer
JPH01272299A (en) Small sound image composite speaker system
DE3331657A1 (en) Loudspeaker
JPS5323254A (en) Amplifier equipment
US7024004B2 (en) Audio circuit having noise cancelling function
JPH03270400A (en) Sound image localization device
JPS62164400A (en) Electronic silencer system
DE2626652A1 (en) Loudspeaker cone for motional feedback systems - has thin flexible electrodes built into cone membrane
JPS5431702A (en) Binaural stereo reproduction circuit
JPH03264883A (en) Information apparatus
JPS60183900A (en) Device for improving sound in automobile
JPS6324798A (en) Capacitor microphone output circuit
JPH03259722A (en) Measuring method for transfer function used for active control over noise
JPS5963250A (en) Apparatus for reducing noise of vehicle
JPS526409A (en) Electronic scanning type ultrasonic deflection system
JPS57116500A (en) Signal processor
GB1492963A (en) Preventing or reducing transmission of sound
JPS53120401A (en) Sound reproducing system
JPS61245698A (en) Acoustic characteristic measuring instrument
JPS5738008A (en) Output amplifier