JPS55112097A - Acoustic system - Google Patents
Acoustic systemInfo
- 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
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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- 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.
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)
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 | 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 apparatus and sound wave detecting microphone |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317052A (en) * | 1976-07-30 | 1978-02-16 | Toshiba Corp | Multivibrator circuit |
-
1979
- 1979-02-21 JP JP1847179A patent/JPS55112097A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317052A (en) * | 1976-07-30 | 1978-02-16 | Toshiba Corp | Multivibrator circuit |
Cited By (6)
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 | 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 apparatus and sound wave detecting microphone |
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