KR960009554B1 - Apparatus for generating surround channel & mid-channel signal - Google Patents

Apparatus for generating surround channel & mid-channel signal Download PDF

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Publication number
KR960009554B1
KR960009554B1 KR93017221A KR930017221A KR960009554B1 KR 960009554 B1 KR960009554 B1 KR 960009554B1 KR 93017221 A KR93017221 A KR 93017221A KR 930017221 A KR930017221 A KR 930017221A KR 960009554 B1 KR960009554 B1 KR 960009554B1
Authority
KR
South Korea
Prior art keywords
output
signals
channel
component
mid
Prior art date
Application number
KR93017221A
Other languages
Korean (ko)
Other versions
KR950007596A (en
Inventor
Sang-Ill Lee
Original Assignee
Daewoo Electronics 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 Daewoo Electronics Co Ltd filed Critical Daewoo Electronics Co Ltd
Priority to KR93017221A priority Critical patent/KR960009554B1/en
Publication of KR950007596A publication Critical patent/KR950007596A/en
Application granted granted Critical
Publication of KR960009554B1 publication Critical patent/KR960009554B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing

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

Abstract

left and right channels(1,2) for receiving left and right signals; a spectrum calculator(3) for calculating the sum of the signals from the left and right channels(1,2); a mode discriminator(4) for comparing the output of the spectrum calculator(3) with a preset constant value to judge which component is dominant among high frequency component or low frequency component; a delay generator(5) for determining delay state according to the output component of the mode discriminator(4); a low pass filter(5) for filtering the delayed output from the delay generator(5) and output of the mode discriminator(4) which is not delayed; a D/A decoder(7) for decoding the digital signals of the channels(1,2) and the low pass filter(6) into analog signals; and an amplifier(8) and a speaker(9) for amplifying the output of the D/A docoder(7).
KR93017221A 1993-08-31 1993-08-31 Apparatus for generating surround channel & mid-channel signal KR960009554B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR93017221A KR960009554B1 (en) 1993-08-31 1993-08-31 Apparatus for generating surround channel & mid-channel signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR93017221A KR960009554B1 (en) 1993-08-31 1993-08-31 Apparatus for generating surround channel & mid-channel signal

Publications (2)

Publication Number Publication Date
KR950007596A KR950007596A (en) 1995-03-21
KR960009554B1 true KR960009554B1 (en) 1996-07-20

Family

ID=19362484

Family Applications (1)

Application Number Title Priority Date Filing Date
KR93017221A KR960009554B1 (en) 1993-08-31 1993-08-31 Apparatus for generating surround channel & mid-channel signal

Country Status (1)

Country Link
KR (1) KR960009554B1 (en)

Also Published As

Publication number Publication date
KR950007596A (en) 1995-03-21

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