JPS5760800A - Tone quality adjusting circuit - Google Patents

Tone quality adjusting circuit

Info

Publication number
JPS5760800A
JPS5760800A JP55134763A JP13476380A JPS5760800A JP S5760800 A JPS5760800 A JP S5760800A JP 55134763 A JP55134763 A JP 55134763A JP 13476380 A JP13476380 A JP 13476380A JP S5760800 A JPS5760800 A JP S5760800A
Authority
JP
Japan
Prior art keywords
output
adder
level
difference signal
components
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.)
Granted
Application number
JP55134763A
Other languages
Japanese (ja)
Other versions
JPH0161000B2 (en
Inventor
Akira Namieno
Fumihiko Yokogawa
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic 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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP55134763A priority Critical patent/JPS5760800A/en
Publication of JPS5760800A publication Critical patent/JPS5760800A/en
Publication of JPH0161000B2 publication Critical patent/JPH0161000B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)

Abstract

PURPOSE:To improve the impression of overspreading of sounds and prevent the level of center components from changing, by applying the difference signal to left and right channels in the same phase and the opposite phase in accordance with the level of center components. CONSTITUTION:Respective channels signals L and R are inputted to subtractors 10 and 12 and an adder 11 to becomes a difference signal L-R and a sum singnal L+R. Sum and difference signal components of the adder 11 and the subtractor 12 are rectified by detectors 1 and 2 are inputted to smoothers 6 and 7 and are converted to DC levels. These DC outputs V+ and V- are amplified by differential amplifier 3 to obtain an output Vc, and this output is used as a control signal for a gain control amplifier 4. In this constitution, the output Vc becomes a signal corresponding to the level of center components if signals L and R have a correlation. When the gain of the amplifer 4 due to the output Vc is denoted as K (K>=0), respective outputs L' and R' of an adder 8 and a subtractor 9 are expressed by equation -1.
JP55134763A 1980-09-27 1980-09-27 Tone quality adjusting circuit Granted JPS5760800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55134763A JPS5760800A (en) 1980-09-27 1980-09-27 Tone quality adjusting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55134763A JPS5760800A (en) 1980-09-27 1980-09-27 Tone quality adjusting circuit

Publications (2)

Publication Number Publication Date
JPS5760800A true JPS5760800A (en) 1982-04-12
JPH0161000B2 JPH0161000B2 (en) 1989-12-26

Family

ID=15135982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55134763A Granted JPS5760800A (en) 1980-09-27 1980-09-27 Tone quality adjusting circuit

Country Status (1)

Country Link
JP (1) JPS5760800A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61166696U (en) * 1985-04-04 1986-10-16
JPS63160000U (en) * 1987-04-08 1988-10-19
US6161443A (en) * 1999-02-03 2000-12-19 Universal Instruments Corporation Drive and actuation mechanism for a component insertion machine
JP2012509037A (en) * 2008-11-14 2012-04-12 ザット コーポレーション Dynamic volume control and multi-space processing prevention
JP2014505427A (en) * 2011-01-04 2014-02-27 ディーティーエス・エルエルシー Immersive audio rendering system
EP3761673A1 (en) * 2019-07-05 2021-01-06 Nokia Technologies Oy Stereo audio

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61166696U (en) * 1985-04-04 1986-10-16
JPS63160000U (en) * 1987-04-08 1988-10-19
US6161443A (en) * 1999-02-03 2000-12-19 Universal Instruments Corporation Drive and actuation mechanism for a component insertion machine
JP2012509037A (en) * 2008-11-14 2012-04-12 ザット コーポレーション Dynamic volume control and multi-space processing prevention
US9584918B2 (en) 2008-11-14 2017-02-28 That Corporation Dynamic volume control and multi-spatial processing protection
JP2014505427A (en) * 2011-01-04 2014-02-27 ディーティーエス・エルエルシー Immersive audio rendering system
EP3761673A1 (en) * 2019-07-05 2021-01-06 Nokia Technologies Oy Stereo audio
US11343635B2 (en) 2019-07-05 2022-05-24 Nokia Technologies Oy Stereo audio

Also Published As

Publication number Publication date
JPH0161000B2 (en) 1989-12-26

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