JPS6460105A - Device for adjusting digital sound volume - Google Patents

Device for adjusting digital sound volume

Info

Publication number
JPS6460105A
JPS6460105A JP21724087A JP21724087A JPS6460105A JP S6460105 A JPS6460105 A JP S6460105A JP 21724087 A JP21724087 A JP 21724087A JP 21724087 A JP21724087 A JP 21724087A JP S6460105 A JPS6460105 A JP S6460105A
Authority
JP
Japan
Prior art keywords
digital
digit
signal
sound volume
digit number
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
JP21724087A
Other languages
Japanese (ja)
Inventor
Sadanori Satou
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.)
Akai Electric Co Ltd
Original Assignee
Akai Electric Co Ltd
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 Akai Electric Co Ltd filed Critical Akai Electric Co Ltd
Priority to JP21724087A priority Critical patent/JPS6460105A/en
Publication of JPS6460105A publication Critical patent/JPS6460105A/en
Pending legal-status Critical Current

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  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To attain sound volume adjustment at a low cost and to have a wide adjusting range and a little distortion by causing the digit number of a digital analog converter to be larger than the digit number of a digital audio input signal. CONSTITUTION:The title device equips with an attenuating coefficient generating circuit 9 to output the signal of an attenuating coefficient K of a (k) digit and a digital multiplier 8 to multiply the digital audio input signal of an (n) digit and a digital attenuating coefficient signal and to output a digital signal. Further, an (m) digit digital analog converter 2 to convert the output of the multiplier 8 to an analog signal is equipped and this device is constituted so that the relation of the digit number can be n<m<n+k. Thus, the losing of a dynamic range due to the increasing of attenuating quantity can be decreased and the increasing of the digit number of the digital analog converter is comparatively small. Thus, the sound volume adjustment of the low cost can be executed to have the wide adjusting range and a little distortion.
JP21724087A 1987-08-31 1987-08-31 Device for adjusting digital sound volume Pending JPS6460105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21724087A JPS6460105A (en) 1987-08-31 1987-08-31 Device for adjusting digital sound volume

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21724087A JPS6460105A (en) 1987-08-31 1987-08-31 Device for adjusting digital sound volume

Publications (1)

Publication Number Publication Date
JPS6460105A true JPS6460105A (en) 1989-03-07

Family

ID=16701048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21724087A Pending JPS6460105A (en) 1987-08-31 1987-08-31 Device for adjusting digital sound volume

Country Status (1)

Country Link
JP (1) JPS6460105A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02280532A (en) * 1989-04-21 1990-11-16 Nec Corp Signal attenuator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489511A (en) * 1977-12-27 1979-07-16 Toshiba Corp Level regulator on digital control system
JPS58146114A (en) * 1982-02-25 1983-08-31 Hitachi Ltd Level controlling circuit
JPS58150309A (en) * 1982-03-02 1983-09-07 Matsushita Electric Ind Co Ltd Digital amplitude controller

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489511A (en) * 1977-12-27 1979-07-16 Toshiba Corp Level regulator on digital control system
JPS58146114A (en) * 1982-02-25 1983-08-31 Hitachi Ltd Level controlling circuit
JPS58150309A (en) * 1982-03-02 1983-09-07 Matsushita Electric Ind Co Ltd Digital amplitude controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02280532A (en) * 1989-04-21 1990-11-16 Nec Corp Signal attenuator

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