KR950030109A - Pitch automatic control device - Google Patents

Pitch automatic control device Download PDF

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Publication number
KR950030109A
KR950030109A KR1019940009281A KR19940009281A KR950030109A KR 950030109 A KR950030109 A KR 950030109A KR 1019940009281 A KR1019940009281 A KR 1019940009281A KR 19940009281 A KR19940009281 A KR 19940009281A KR 950030109 A KR950030109 A KR 950030109A
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South Korea
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level
pitch
accompaniment
band
digital signals
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KR1019940009281A
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Korean (ko)
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KR0129022B1 (en
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김성원
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배순훈
대우전자 주식회사
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • G11B20/10018Improvement or modification of read or write signals analog processing for digital recording or reproduction
    • G11B20/10027Improvement or modification of read or write signals analog processing for digital recording or reproduction adjusting the signal strength during recording or reproduction, e.g. variable gain amplifiers
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00Details of electrophonic musical instruments
    • G10H1/36Accompaniment arrangements
    • G10H1/361Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • G11B20/10037A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

본 발명은 가요반주기기를 이용하여 노래를 부르는 경우 그 가요반주기기로 부터의 반주음레벨과 마이크로부터 입력되는 사용자의 음성레벨을 비교하여 생성된 차이치가 소정시간 동안 발생되면 현재의 반주음정레벨이 마이크사용자의 음정레벨로 자동조절되도록 하기 위한 가요 반주기기의 음전자동조절장치에 관한 것으로, 가요반주기기로부터의 반주음신호및 마이크로부터의 음성신호에서 소정의 주파수성분만을 각각 필터링하는 제1및 제2필터수단(10, 12)과, 상기 제1 및 제2필터수단(10, 12)에서 필터링되는 아날로그 신호를 각각 디지탈변환시키는 제1 및 제2A/D변환기 (14, 16), 소정의 스위칭소자(S1, S2;S3, S4)를 각각 갖추고서 상기 제1 및 제2A/D변화기 (14, 16)로부터의 디지탈신호를 소정의 대역폭으로 순차적으로 필터링하는 복수의 대역필터(1∼N)를 각각 갖춘 제1및 제2대역필터부(18, 20), 상기 제1 및 제2대역필터부(18, 30)로부터의디지탈 신호를 각각 증폭시키는 제1 및 제2증폭부(22, 24),상기 제1 및 제2증폭부(22, 24)에서 각각 증폭출력되는 디지털신호의 레벨을 상호 비교하는 레벨비교부(26), 상기 제1 및 제2대역필터부(18, 20)상의 스위칭소다(S1, S2;S3, S4)가 상호 대응적으로 각각 연동되면서 순차적인 스위칭절환동작을 수행하도록 제어함과 더불어 상기 레벨비교부(26)로부터의 레벨 차이치가 소정시간동안 연속적으로 발생되면 현재의 반주음정레벨이 상기 레벨차이치만큼 중가 또는 감소되도록 제어하는 제어부(28) 및 ,상기 제어부(280로부터의 음정조절제어신호에 따라 현재의 반주음정을 조절하는 음정조절부(30)로 구성된 것이다.According to the present invention, when a song is performed using a flexible reciprocal cycler, if the difference generated by comparing the accompaniment sound level from the flexible cyclic cycler and the user's voice level input from the microphone is generated for a predetermined time, the current accompaniment pitch level is the microphone user. The automatic semi-periodic adjustment device of the flexible semi-periodic device for automatically adjusting to the pitch level of the apparatus, the first and second filters for filtering only predetermined frequency components from the accompaniment sound signal from the flexible half-cycle machine and the audio signal from the microphone, respectively Means 10 and 12, first and second A / D converters 14 and 16 for digitally converting the analog signals filtered by the first and second filter means 10 and 12, respectively; A plurality of band filters 1 to N having S1, S2; S3 and S4, respectively, for sequentially filtering the digital signals from the first and second A / D converters 14 and 16 to a predetermined bandwidth. First and second band filter sections 18 and 20, respectively; first and second amplifier sections 22 and 24 for amplifying the digital signals from the first and second band filter sections 18 and 30, respectively, A level comparator 26 for comparing the levels of the digital signals amplified and output by the first and second amplifiers 22 and 24, respectively, and switching soda on the first and second band filter units 18 and 20. (S1, S2; S3, S4) are controlled to perform sequential switching switching operations while interworking with each other, and when the level difference value from the level comparator 26 is continuously generated for a predetermined time, The controller 28 controls the accompaniment pitch level to be increased or decreased by the level difference, and the pitch control unit 30 adjusts the current accompaniment pitch according to the pitch control control signal from the controller 280.

Description

가요반주기기의 음정자동조절장치Pitch automatic control device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 일실시예에 따른 가요반주기기의 음정자동조절장치의 블럭구성도, 제2도는 본 발명의 다른 실시예에 따른 가요반주기기의 음정자동조절장치의 블럭구성도이다.1 is a block diagram of a pitch automatic control device of a flexible board according to an embodiment of the present invention, Figure 2 is a block diagram of a pitch automatic control device of a flexible board cycler according to another embodiment of the present invention.

Claims (6)

가요반주기기로부터의 반주음신호 및 마이크로부터의 음성신호에서 소정의 주파수성분만을 각각 필터링하는 제1 및 제2필터수단 (10, 12)과, 상기 제1 및 제2필터수단(10, 12)에서 필터링되는 아날로그신호를 각각 디지탈변환시키는 제1 및 제2A/D변환기(14, 16), 소정의 스위칭소자(S1, S2;S3, S4)를 각각 갖추고서 상기 제1및 제2A/D 변환기(14, 16)로부터의 디지탈신호를 소정의 대역폭으로 순차적으로 필터링하는 복수의 대역필터(1∼N)를 각각 갖춘 제1 및 제2대역필터주(18, 20),상기 제1 및 제2대역필터부(18, 20)로부터의 디지탈신호를 각각 증폭시키는 제1 및 제2증폭부(22, 24), 상기 제1 및 제2증폭부(22, 24)에서 각각 증폭출력되는 디지탈신호의 레벨을 상호 비교하는 레벨비교부(26), 상기 제1 및 제2대역 필터부(18, 20)상의 스위칭소자(S1, S2;S3, S4)가 상호 대응적으로 각각 연동되면서 순차적인 스위칭절환 동작을 수행하도록 제어함과 더불어 상기 레벨비교부(26)로부터의 레벨차이치가 소정시간 동안 연속적으로 발생되면 현재의 반주음정레벨이 상기 레벨차이치만큼 증가 또는 감소되도록 제어하는 제어부(28)및, 상기 제어부(28)로부터의 음정조절제어신호에 따라 현재의 반주음정을 조절하는 음정조절부(30)로 구성된 것을 특징으로 하는 가요반주기기의 음정자동조절장치.First and second filter means (10, 12) for filtering only predetermined frequency components from the accompaniment sound signal from the flexible repeater and the audio signal from the microphone, and the first and second filter means (10, 12), respectively. The first and second A / D converters 14 and 16 and the predetermined switching elements S1, S2, S3, and S4 respectively for digitally converting the analog signal filtered by First and second band filter lines 18 and 20 each having a plurality of band filters 1 to N that sequentially filter the digital signals from the signals 14 and 16 to a predetermined bandwidth, respectively; The first and second amplifiers 22 and 24 and the first and second amplifiers 22 and 24 respectively amplify the digital signals from the band filter units 18 and 20, respectively. The level comparison section 26 and the switching elements S1, S2; S3, S4 on the first and second band filter sections 18, 20, which compare levels with each other, correspond to each other. Controlling to perform a sequential switching switching operation while interlocking, and if the level difference from the level comparator 26 is continuously generated for a predetermined time to control to increase or decrease the current accompaniment pitch level by the level difference And a pitch control unit (30) for adjusting the current accompaniment pitch in response to a pitch control control signal from the control unit (28). 제1항에 있어서, 상기 필터수단(10, 12)은 저역필터로 구성된 것을 특징으로 하는 가요반주기기의 음정자동조절 장치.The apparatus of claim 1, wherein the filter means (10, 12) comprises a low pass filter. 제1항에 있어서, 상기 제1 및 제2대역필터부(18, 20)의 대역필터(1∼N)는 상호 차등적인 대역폭을 각각 동일하게 갖도록 구성된 것을 특징으로 하는 특징으로 하는 가요반주기기의 음정자동 조절장치.2. The flexible repeater of claim 1, wherein the band filters 1 to N of the first and second band filter units 18 and 20 are configured to have the same differential bandwidths. Automatic pitch control. 가요반주기기로부터의 반주음신호 및 마이크로부터의 음성신호에서 소정의 주파수성분만을 각각 필터링하는 제1 및 제2필터수단 (10, 12)과, 상기 제1 및 제2필터수단 (10, 12)에서 필터링되는 아날로그신호를 각각 디지탈변환시키는 제1및 제2A/D변환기(14,1 6),소정의 스위칭소자(S1, S2;S3, 34)를 각각 갖추고서 상기 제1및 제2A/D변환기(14, 16)로부터의 디지탈신호를 소정의 대역폭으로 순차적으로 필터링하는 복수의 대역필터(1∼N)를 각각 갖춘 제1 및 제2대역필터부(18, 20), 상기 제1 및 제2대역필터부(18, 20)로부터의 디지탈 신호를 각각 증폭시키는 제1 및 제2증폭부(22, 24),상기 제1 및 제2대역필터부(18, 20)상의 스위칭소자(S1, S2;S3, S4)가 상호 대응적으로 각각 연동되면서 순차적인 스위칭절환동작을 수행하도록 제어하는 스위칭절환제어부(25),상기 제1 및 제2증폭부(22, 24)에서 각각 증폭출력되는 디지탈 신호의 레벨을 상호 비교하는 레벨비교부(26), 상기 레벨비교부(26)로부터의 레벨차이치가 일시 저장되는 기억부(27), 상기 기억부(27)상에 상기 레벨차이치가 소정시간동안 연속적으로 저장되면 반주음정레벨이 상기 레벨차이치만큼 증가 또는 감소되도록 제어하는 주제어부(29) 및, 상기 주제어부(29)로부터의 음정조절제어신호에 따라 현재의 반주음정을 조절하는 음정조절부(30)로 구성된 것을 특징으로 하는 특징으로 하는 가요반주기기의 음정자동조절장치.First and second filter means (10, 12) for filtering only predetermined frequency components from the accompaniment sound signal from the flexible repeater and the audio signal from the microphone, and the first and second filter means (10, 12), respectively. First and second A / D converters 14 and 16 for digitally converting the analog signal filtered by the first and second switching elements S1, S2; S3 and 34, respectively. First and second band filter sections 18 and 20, each of which has a plurality of band filters 1 to N for sequentially filtering the digital signals from the converters 14 and 16 to a predetermined bandwidth, and the first and the second. First and second amplifiers 22 and 24 for amplifying the digital signals from the two-band filter units 18 and 20, respectively, and switching elements S1 and on the first and second band filter units 18 and 20, respectively. S2; S3, S4, the switching switching control unit 25 for controlling to perform a sequential switching switching operation while interworking with each other, the first and second amplifiers A level comparator 26 for comparing the levels of the digital signals amplified and outputted at (22, 24) with each other, a storage unit 27 for temporarily storing level differences from the level comparator 26, and the storage unit ( 27) the main control unit 29 for controlling the accompaniment pitch level to increase or decrease by the level difference when the level difference value is continuously stored for a predetermined time, and the pitch control control signal from the main control unit 29. According to the pitch control unit 30 to adjust the current accompaniment pitch automatic pitch control device characterized in that consisting of. 제4항에 있어서, 상기 필터수단(10, 12)은 저역필터로 구성된 것을 특징으로 하는 특징으로 하는 가요반주기기의 음정자동조절장치.5. The automatic pitch control device of a flexible repeater according to claim 4, characterized in that the filter means (10, 12) is composed of a low pass filter. 제4항에 있어서, 상기 제1 및 제2대역필터부(18, 20)의 복수의 대역필터(1∼N)는 상호 차등적인 대역폭을 각각 동일하게 갖도록 구성된 것을 특징으로 하는 특징으로 하는 가요반주기기의 음정자동조절장치.5. The flexible accompaniment according to claim 4, wherein the plurality of band filters (1 to N) of the first and second band filter units (18, 20) are configured to have the same differential bandwidths respectively. Automatic pitch control of the instrument. ※참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: This is to be disclosed based on the first application.
KR1019940009281A 1994-04-29 1994-04-29 Automatic tuning apparatus for karaoke system KR0129022B1 (en)

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Application Number Priority Date Filing Date Title
KR1019940009281A KR0129022B1 (en) 1994-04-29 1994-04-29 Automatic tuning apparatus for karaoke system

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Application Number Priority Date Filing Date Title
KR1019940009281A KR0129022B1 (en) 1994-04-29 1994-04-29 Automatic tuning apparatus for karaoke system

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KR950030109A true KR950030109A (en) 1995-11-24
KR0129022B1 KR0129022B1 (en) 1998-04-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100612927B1 (en) * 2004-10-01 2006-08-14 김성규 Pitch control apparatus and method for detecting pitch accuracy
KR100621717B1 (en) * 2004-08-13 2006-09-19 엘지전자 주식회사 Apparatus and method for controling chorus level in karaoke system
KR100765804B1 (en) * 2006-07-26 2007-10-12 주식회사 엔터기술 Music accompaniment apparatus having automatic musical interval control function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100621717B1 (en) * 2004-08-13 2006-09-19 엘지전자 주식회사 Apparatus and method for controling chorus level in karaoke system
KR100612927B1 (en) * 2004-10-01 2006-08-14 김성규 Pitch control apparatus and method for detecting pitch accuracy
KR100765804B1 (en) * 2006-07-26 2007-10-12 주식회사 엔터기술 Music accompaniment apparatus having automatic musical interval control function

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