JPS6451706A - Gain control method for variable gain circuit - Google Patents

Gain control method for variable gain circuit

Info

Publication number
JPS6451706A
JPS6451706A JP62208769A JP20876987A JPS6451706A JP S6451706 A JPS6451706 A JP S6451706A JP 62208769 A JP62208769 A JP 62208769A JP 20876987 A JP20876987 A JP 20876987A JP S6451706 A JPS6451706 A JP S6451706A
Authority
JP
Japan
Prior art keywords
attenuation
volume
control method
gain
inversion
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
JP62208769A
Other languages
Japanese (ja)
Other versions
JPH0630428B2 (en
Inventor
Tsuguo Aoki
Takashi Yamamoto
Osamu Yoshizawa
Motoyuki Yamaguchi
Hiroshi Wakimoto
Takuji Kimura
Koichi Ryu
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 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 Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP62208769A priority Critical patent/JPH0630428B2/en
Publication of JPS6451706A publication Critical patent/JPS6451706A/en
Publication of JPH0630428B2 publication Critical patent/JPH0630428B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)

Abstract

PURPOSE:To prevent sound volume from being inverted on the way of increase/ decrease in the sound volume by devising the titled method such that the inversion of the attenuation is not caused at a low frequency and a high frequency before and after passing a threshold attenuation given with a loudness attenuation. CONSTITUTION:When an MPU2 executes a volume-up subroutine, the setting attenuation is increased by 2dB sequentially from Qmx, -16dB is attained next to -20dB and -18dB is not set. In executing the volume-down subroutine, the set attenuation is decreased from the Qmn by 2dB each sequentially and -18dB is not set. Thus, the inversion of the attenuation change in a low or a high frequency is not caused since the attenuation of -18dB is not set.
JP62208769A 1987-08-22 1987-08-22 Variable gain circuit with loudness function Expired - Lifetime JPH0630428B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62208769A JPH0630428B2 (en) 1987-08-22 1987-08-22 Variable gain circuit with loudness function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62208769A JPH0630428B2 (en) 1987-08-22 1987-08-22 Variable gain circuit with loudness function

Publications (2)

Publication Number Publication Date
JPS6451706A true JPS6451706A (en) 1989-02-28
JPH0630428B2 JPH0630428B2 (en) 1994-04-20

Family

ID=16561785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62208769A Expired - Lifetime JPH0630428B2 (en) 1987-08-22 1987-08-22 Variable gain circuit with loudness function

Country Status (1)

Country Link
JP (1) JPH0630428B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008124990A (en) * 2006-11-15 2008-05-29 New Japan Radio Co Ltd Loudness control circuit
EP2445106A1 (en) 2010-10-20 2012-04-25 Yamaha Corporation Acoustic signal processing apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5041308B1 (en) * 2012-01-11 2012-10-03 進 谷口 Loudness correction means and sound quality adjustment means

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS611930A (en) * 1984-06-14 1986-01-07 Matsushita Electric Ind Co Ltd Device for hanging kitchen utensil on wall

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS611930A (en) * 1984-06-14 1986-01-07 Matsushita Electric Ind Co Ltd Device for hanging kitchen utensil on wall

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008124990A (en) * 2006-11-15 2008-05-29 New Japan Radio Co Ltd Loudness control circuit
EP2445106A1 (en) 2010-10-20 2012-04-25 Yamaha Corporation Acoustic signal processing apparatus
US9281795B2 (en) 2010-10-20 2016-03-08 Yamaha Corporation Acoustic signal processing apparatus

Also Published As

Publication number Publication date
JPH0630428B2 (en) 1994-04-20

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