JPS6451706A - Gain control method for variable gain circuit - Google Patents
Gain control method for variable gain circuitInfo
- 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
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.
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)
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)
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)
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 |
-
1987
- 1987-08-22 JP JP62208769A patent/JPH0630428B2/en not_active Expired - Lifetime
Patent Citations (1)
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)
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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