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KR960015537A - Distortion measurement and adjustment device for audio signals - Google Patents

Distortion measurement and adjustment device for audio signals Download PDF

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Publication number
KR960015537A
KR960015537A KR1019940026750A KR19940026750A KR960015537A KR 960015537 A KR960015537 A KR 960015537A KR 1019940026750 A KR1019940026750 A KR 1019940026750A KR 19940026750 A KR19940026750 A KR 19940026750A KR 960015537 A KR960015537 A KR 960015537A
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KR
South Korea
Prior art keywords
audio signal
distortion rate
distortion
signal processing
adjusting
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Application number
KR1019940026750A
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Korean (ko)
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KR0183698B1 (en
Inventor
류재춘
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김광호
삼성전자 주식회사
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Priority to KR1019940026750A priority Critical patent/KR0183698B1/en
Publication of KR960015537A publication Critical patent/KR960015537A/en
Application granted granted Critical
Publication of KR0183698B1 publication Critical patent/KR0183698B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10194—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using predistortion during writing

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Amplifiers (AREA)

Abstract

오디오신호 처리장치의 왜곡률을 자동적으로 조정하는 왜곡률 측정 및 조정장치가 개시된다.Disclosed is a distortion measuring and adjusting apparatus for automatically adjusting a distortion of an audio signal processing apparatus.

본 발명에 따른 오디오신호의 왜곡률 측정 및 조정장치는 기본파만을 갖는 시험용 오디오신호를 발생하여 오디오신호 처리장치에 제공하는 기준 오디오신호 발생기; 오디오신호 처리장치로 부터 출력되는 신호의 왜곡률을 평가하는 왜곡률평가기;왜곡률평가기에서 출력되는 왜곡률값에 따라 오디오신호 처리장치의 왜곡률 조정볼륨을 제어하는 제어장치를 포함함을 특징으로 한다.An apparatus for measuring and adjusting a distortion rate of an audio signal according to the present invention includes: a reference audio signal generator for generating a test audio signal having only a fundamental wave and providing the same to an audio signal processing apparatus; Distortion rate evaluator for evaluating the distortion of the signal output from the audio signal processing device; Characterized in that it comprises a control device for controlling the distortion adjusting volume of the audio signal processing device according to the distortion value output from the distortion rate evaluator.

본 발명에 따른 오디오신호의 왜곡률 측정 및 조정장치는 측정된 왜곡률을 허용왜곡률과 비교하고, 그 차이값으로서 오디오신호 처리장치의 왜곡률을 자동적으로 조정하도록 함으로써 조정 균일성을 확보하는 효과가 있다.An apparatus for measuring and adjusting the distortion rate of an audio signal according to the present invention compares the measured distortion rate with an allowable distortion rate, and automatically adjusts the distortion rate of the audio signal processing apparatus as a difference value, thereby ensuring uniformity of adjustment.

Description

오디오신호의 왜곡률 측정 및 조정 장치Distortion measurement and adjustment device for audio signals

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 왜곡률 측정 및 조정장치를 보이는 블록도이다.2 is a block diagram showing a distortion measuring and adjusting apparatus according to the present invention.

Claims (5)

왜곡률 조정볼륨을 구비한 오디오신호 처리장치에서 출력되는 오디오신호의 왜곡률을 측정하고 그 결과에 따라 상기 오디오신호 처리장치의 왜곡률특성을 조정하는 장치에 있어서, 기본파만을 갖은 시험용 오디오신호를 발생하여 상기 오디오신호 처리장치에 제공하는 기준 오디오신호 발생기; 상기 오디오신호 처리장치로부터 출력되는 신호의 왜곡률을 평가하는 왜곡률평가기; 상기 왜곡률 조정볼륨을 조정하는 조정부; 및 상기 왜곡률 평가기에서 출력되는 왜곡률값에 따라 상기 오디오신호 처리장치의 조정부를 제어하는 제어부를 포함하는 오디오신호의 왜곡률 조정장치.An apparatus for measuring a distortion rate of an audio signal output from an audio signal processing apparatus having a distortion rate adjusting volume, and adjusting a distortion rate characteristic of the audio signal processing apparatus according to the result, generating a test audio signal having only fundamental waves. A reference audio signal generator provided to the audio signal processing apparatus; A distortion rate evaluator for evaluating a distortion rate of a signal output from the audio signal processing apparatus; An adjusting unit for adjusting the distortion adjusting volume; And a controller configured to control an adjusting unit of the audio signal processing apparatus according to the distortion rate value output from the distortion rate evaluator. 제1항에 있어서, 상기 왜곡률 평가기는 상기 오디오신호 처리장치로 부터 출력되는 신호로 부터 기본파를 제거하는 기본파 제거필터; 및 상기 기본파 제거필터에서 출력되는 고조파의 실효값을 산출하는 실효값 산출기를 구비함을 특징으로 하는 오디오신호의 왜곡률 측정 및 조정장치.The apparatus of claim 1, wherein the distortion rate estimator comprises: a fundamental wave removing filter configured to remove fundamental waves from a signal output from the audio signal processing apparatus; And an effective value calculator for calculating an effective value of harmonics outputted from the fundamental wave elimination filter. 제1항에 있어서, 상기 제어부는 상기 왜곡률 평가기를 통하여 측정된 왜곡률을 허용왜곡률과 비교하고, 그 결과에 따라 상기 조정기를 제어함을 특징으로 하는 오디오신호의 왜곡률 측정 및 조정장치.The apparatus of claim 1, wherein the controller compares the distortion rate measured by the distortion rate evaluator with an allowable distortion rate, and controls the adjuster according to the result. 제3항에 있어서, 상기 제어부는 컴퓨터임을 특징으로 하는 오디오신호의 왜곡률 측정 및 조정장치.4. The apparatus of claim 3, wherein the control unit is a computer. 제4항에 있어서, 상기 왜곡률 측정기에서 출력되는 왜곡률을 디지탈신호로 변환시켜 상기 제어부에 제공하는 아날로그/디지탈 변환기를 더 구비함을 특징으로 하는 오디오신호의 왜곡률 측정 및 조정장치.The apparatus of claim 4, further comprising an analog / digital converter for converting the distortion rate output from the distortion rate measuring device into a digital signal and providing the digital signal to the controller. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940026750A 1994-10-19 1994-10-19 Apparatus for measuring and adjusting total harmonic distortion of audio signal KR0183698B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940026750A KR0183698B1 (en) 1994-10-19 1994-10-19 Apparatus for measuring and adjusting total harmonic distortion of audio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940026750A KR0183698B1 (en) 1994-10-19 1994-10-19 Apparatus for measuring and adjusting total harmonic distortion of audio signal

Publications (2)

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KR960015537A true KR960015537A (en) 1996-05-22
KR0183698B1 KR0183698B1 (en) 1999-04-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060098726A (en) * 2005-03-07 2006-09-19 주식회사 현대오토넷 Apparatus for auto correcting sound in an audio system and method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102362877B1 (en) 2015-06-24 2022-02-15 삼성디스플레이 주식회사 Display panel driving apparatus, method of driving display panel using the same and display apparatus having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060098726A (en) * 2005-03-07 2006-09-19 주식회사 현대오토넷 Apparatus for auto correcting sound in an audio system and method thereof

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