KR960005571A - Flutter echo attenuation method of sound equipment and apparatus therefor - Google Patents

Flutter echo attenuation method of sound equipment and apparatus therefor Download PDF

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Publication number
KR960005571A
KR960005571A KR1019940016887A KR19940016887A KR960005571A KR 960005571 A KR960005571 A KR 960005571A KR 1019940016887 A KR1019940016887 A KR 1019940016887A KR 19940016887 A KR19940016887 A KR 19940016887A KR 960005571 A KR960005571 A KR 960005571A
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South Korea
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signal
accompaniment
reflection
reflection effect
effect
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KR1019940016887A
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Korean (ko)
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KR970010640B1 (en
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라홍운
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조동식
주식회사 인켈
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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
    • G11B20/22Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • G11B20/225Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions for reducing wow or flutter

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

본 고안은 음향기기에 관한 것으로, 소정의 녹음매체로 부터의 재생 또는 수신주파수를 통한 음장의 창출에서 반주에 대한 음원신호의 반사효과 및 리버브 효과를 제한하고, 음성에 대한 음원신호에 반사효과를 광의로 지원하여 안정감있는 입체음향을 감상할 수 있도록 한 것이다.The present invention relates to an acoustic device, which limits the reflection and reverb effects of a sound source signal to an accompaniment in the reproduction of a predetermined recording medium or the generation of a sound field through a reception frequency, and the reflection effect to a sound source signal for speech. With broad support, you can enjoy a stable three-dimensional sound.

본 고안은 음원신호에서 음성에 대한 신호와 반주에 대한 신호를 분리추출하는 신호음 분리수단과, 음성에 대한 신호에 반사효과를 지원하는 제1반사파 형성수단과, 반주에 대한 신호에서 소정 대역의 주파수 성분만을 추출하는 필터링수단, 필터링된 신호에서 딜레이된 위상을 보정하는 위상보정수단과, 상기 위상보정된 반주에 대한 신호에 반사효과를 지원하는 제2반사파 형성수단, 반사효과가 지원되지 않은 반주에 대한 신호에 리버브 효과를 지원하는 잔향효과를 형성수단을 구비하여 확신감과 공간감이 형성된 안정된 음향을 청취한다.The present invention provides a beep separating means for separating and extracting a signal for speech and an accompaniment signal from a sound source signal, a first reflecting wave forming means for supporting a reflection effect on the signal for speech, and a frequency of a predetermined band in the signal for accompaniment. Filtering means for extracting only components, phase correction means for correcting the delayed phase in the filtered signal, second reflecting wave forming means for supporting a reflection effect on the signal for the phase-compensated accompaniment, accompaniment for which the reflection effect is not supported A reverberation effect forming means for supporting the reverb effect on the signal is provided to listen to a stable sound with confidence and a sense of space.

Description

음향기기의 플러터 에코 감쇄방법 및 그 장치Flutter echo attenuation method of sound equipment and apparatus therefor

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

제3도는 본 발명에 다른 음향기기의 플러터 에코감쇄 장치의 구성 블럭도.3 is a block diagram of a flutter echo canceller of an acoustic apparatus according to the present invention.

제4도는 제3도에 도시된 본 발명에서 다른 실시예를 보인 구성 블럭도.4 is a block diagram showing another embodiment of the present invention shown in FIG.

Claims (8)

음향기기에 있어서, 재생수단 또는 수신주파수로부터 추출되어 인가되는 디지탈 음원신호에서 음성에 대한 신호부분과 반주에 대한 신호부분을 분리하여 추출하는 제1과정과, 상기 제1과정에서 분리추출된 음성에 대한 신호에 반사효과를 확장지원하고 반주에 대한 신호에 반사효과 및 리버브 효과를 제한하여 지원하는 제2과정 및, 상기 반사효과가 확장지원된 음성에 대한 신호와 상기 반사효과 및 리버브 효과가 제한되어 지원된 반주에 대한 신호를 혼합하여 소정의 레벨로 증폭출력하는 제3과정을 포함하는 것을 특징으로 하는 음향기기의 플러터 에코 감쇄방법.A sound device comprising: a first step of separating and extracting a signal portion for an audio signal and a signal portion for an accompaniment from a digital sound source signal extracted and applied from a reproduction means or a reception frequency; The second process of supporting the extended reflection effect on the signal for the accompaniment and limiting the reflection effect and the reverb effect on the signal for the accompaniment, and the signal and the reflection effect and the reverb effect for the voice with the extended reflection effect is limited And a third process of amplifying and outputting a signal of a supported accompaniment to a predetermined level. 제1항에 있어서, 상기 제1과정에 분리추출된 반주에 대한 신호에서 소정대역의 저주파 성분을 제거하여 필터링하는 제1단계와, 상기 제1단계의 필터링 동작 수행후 인가되는 고주파 대역의 주파수 신호에서 딜레이된 위상을 검출하여 보상하는 제2단계를 포함하는 것을 특징으로 하는 음향기기의 플러터 에코 감쇄 방법.2. The method of claim 1, further comprising: removing and filtering a low frequency component of a predetermined band from a signal for an accompaniment separated in the first step; and applying a frequency signal of a high frequency band applied after performing the filtering operation of the first step. And a second step of detecting and compensating for the delayed phase in the audio device. 제2항에 있어서, 상기 딜레이된 위상의 보상동작은 사용자의 키 설정에 따라 자동 조절되는 것을 특징으로 하는 음향기기의 플러터 에코 감쇄방법.The method of claim 2, wherein the delayed phase compensation operation is automatically adjusted according to a user's key setting. 디지탈 음원신호의 흐름을 조절하는 완충수단을 구비한 음향기기에 있어서, 상기 완충수단을 통해 인가되는 음원신호에서 음성에 대한 신호와 반주에 대한 신호를 분리하여 추출하는 신호음 분리수단과, 상기 분리추출된 음성에 대한 신호에 반사효과를 지원하는 제1반사파 형성수단과, 상기 분리추출된 반주에 대한 신호에서 소정대역의 주파수 성분만을 필터링하는 필터링 수단과, 상기 필터링된 주파수 성분중 딜레이된 위상을 보정하는 위상보정수단과, 상기 위상보정수단을 통한 반주에 대한 신호에 반사효과를 지원하는 제2반사파 형성수단과, 상기 반주에 대한 신호에서 반사효과가 지원되지 않은 신호에 리버브 효과를 지원하는 잔향파 형성수단 및 상기 반사효과가 지원된 음성에 대한 신호와 상기 반사효과 및 리버브 효과가 지원된 반주에 대한 신호를 혼합하여 소정의 레벨로 증폭출력하는 증폭수단을 구비하는 것을 특징으로 하는 음향기기의 플러터 에코 감쇄장치.An acoustic device having a buffer means for controlling the flow of a digital sound source signal, comprising: a signal sound separation means for separating and extracting a signal for accompaniment and a signal for accompaniment from a sound source signal applied through the buffer means; A first reflection wave forming means for supporting a reflection effect on the signal for the extracted voice, filtering means for filtering only a frequency component of a predetermined band in the signal for the separated extraction accompaniment, and corrected delayed phase among the filtered frequency components Phase correction means, second reflection wave forming means for supporting a reflection effect on a signal for accompaniment through the phase correction means, and a reverberation wave supporting a reverb effect for a signal in which the reflection effect is not supported in the signal for the accompaniment Forming means and a signal for the reflection-supported voice and the accompaniment with the reflection and reverb effects. Mixing a signal with a flutter echo attenuation device of the acoustic apparatus comprising an amplification means for amplifying the output to a predetermined level. 제4항에 있어서, 상기 제1반사파 형성수단은 광의의 반사효과를 지원하여 음성에 대한 신호를 확장하고, 상기 제2반사파 형성수단은 협의의 반사효과를 지원하여 반주에 대한 신호의 반사효과를 제한하도록 한 것을 특징으로 하는 음향기기의 플러터 에코 감쇄장치.5. The apparatus of claim 4, wherein the first reflecting wave forming means extends a signal for speech by supporting a broad reflection effect, and the second reflecting wave forming means supports narrowing reflection effect to provide a reflection effect of the signal on the accompaniment. Flutter echo attenuator of an acoustic device, characterized in that the restriction. 제4항에 있어서, 상기 필터링 수단은 반주에 대한 신호에서 저주파 대역의 신호 성분을 제거하고 고주파 대역의 신호 성분만을 추출하는 고역필터로 이루어진 것을 특징으로 하는 플러터 에코 감쇄장치.5. The flutter echo attenuator according to claim 4, wherein the filtering means comprises a high pass filter which removes low frequency signal components and extracts only high frequency signal components from the signal for the accompaniment. 제4항에 있어서, 상기 위상보정수단은 사용자의 키설정에 따라 동작되며 필터링시 딜레이된 위상을 미세조정하여 보상하는 것을 특징으로 하는 음향기기의 플러터 에코 감쇄장치.5. The apparatus of claim 4, wherein the phase correction means is operated according to a user's key setting and compensates by finely adjusting a delayed phase during filtering. 제4항에 있어서, 상기 신호음 분리수단에서 추출된 음성에 대한 음원신호를 완충하여 주파수 대역을 축소시키는 버퍼(110)와, 상기 주파수 대역이 축소된 음성에 대한 음원신호에 잭을 통한 접속으로 외부음성 입력수단을 연결하여 가요반주기로 사용되는 것을 특징으로 하는 음향기기의 플러터 에코 감쇄장치.The method of claim 4, wherein the buffer 110 for buffering the sound source signal for the voice extracted by the tone separating means to reduce the frequency band, and the external connection through the jack to the sound source signal for the reduced frequency band; Flutter echo attenuation apparatus of an acoustic apparatus, characterized in that used as a flexible half cycle by connecting the voice input means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940016887A 1994-07-13 1994-07-13 Flutter echo attenuation method and apparatus of acoustic system KR970010640B1 (en)

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KR1019940016887A KR970010640B1 (en) 1994-07-13 1994-07-13 Flutter echo attenuation method and apparatus of acoustic system

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KR1019940016887A KR970010640B1 (en) 1994-07-13 1994-07-13 Flutter echo attenuation method and apparatus of acoustic system

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KR960005571A true KR960005571A (en) 1996-02-23
KR970010640B1 KR970010640B1 (en) 1997-06-28

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