KR910001080Y1 - Audio echo generator - Google Patents
Audio echo generator Download PDFInfo
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- KR910001080Y1 KR910001080Y1 KR2019880004769U KR880004769U KR910001080Y1 KR 910001080 Y1 KR910001080 Y1 KR 910001080Y1 KR 2019880004769 U KR2019880004769 U KR 2019880004769U KR 880004769 U KR880004769 U KR 880004769U KR 910001080 Y1 KR910001080 Y1 KR 910001080Y1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/26—Time-delay networks
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/1204—Distributed RC filters
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Abstract
내용 없음.No content.
Description
본 고안의 회로도.Circuit diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 음성 중간 주파증폭부 20 : 저역필터10: negative intermediate frequency amplifier 20: low pass filter
30 : 증폭부 40 : 지연증폭 및 궤환부30: amplification unit 40: delayed amplification and feedback unit
50 : 비반전 증폭부 I : 메인 앰프50: non-inverting amplifier I: main amplifier
R1-R13 : 저항 C1-C8 : 콘덴서R1-R13: Resistor C1-C8: Capacitor
Q1,Q2 : 트랜지스터 SP1,SP2 : 스피커Q1, Q2: Transistor SP1, SP2: Speaker
OP1 : OP앰프 B : 전원OP1: OP Amp B: Power
DL1 : 지연소자DL1: delay element
본 고안은 음성신호 출력회로에 있어서, 저음부만 일정시간 반복 지연시킴으로써, 음장감을 확대시킬수 있도록 하는 오디오의 에코현상 발생회로에 관한 것이다.The present invention relates to an echo phenomenon generating circuit for audio, in which a low sound portion is repeatedly delayed for a predetermined time in an audio signal output circuit so as to expand a sound field feeling.
종래에는 오디오 신호의 입체감 및 현장감을 느끼기 위하여 고음 부분만을 따로 출력시키는 한편 오디오 신호의 전주파수 대역을 출력시키고 또한 서라운드음을 출력시키는 것이다.Conventionally, in order to feel the stereoscopic and realism of the audio signal, only the high-pitched portion is output separately, and the full frequency band of the audio signal is output, and also the surround sound is output.
그러나 상기와 같은 오디오 신호의 출력만으로는 입체감 및 현장감을 충분히 느끼지 못하는 단점이 있어 본 고안에서는 오디오 신호의 저음 부분만을 일정시간 반복 지연 시켜 출력시킴으로써 생동감 있는 오디오 신호를 즐길 수 있도록 한 것이다.However, there is a disadvantage in that the output of the audio signal alone does not feel the three-dimensional and realistic enough only in the present invention is to enjoy a live audio signal by repeatedly outputting the bass portion of the audio signal for a predetermined time.
즉 본 고안은 오디오 신호를 고음부와 전주파수 대역의 신호 및 서라운드음으로 출력시키되 오디오 신호의 저음부만을 분리하여 이를 일정시간 반복 지연시킴으로써 월등한 성능의 입체음을 즐길 수 있도록 한 것으로 이를 첨부 도면에 의거 상세히 설명하면 다음과 같다.In other words, the present invention outputs an audio signal as a treble part and a signal of a full frequency band and surround sound, but separates only the bass part of the audio signal and repeatedly defers it for a predetermined time so that superior performance of stereoscopic sound can be enjoyed. It will be described in detail as follows.
본 고안은 음성 중간 주파수 증폭부(IO)의 음성 신호를 메인 앰프(I)에서 증폭시켜 스피커(SP1)로 출력시키는 음성신호 출력중 저음 부분만을 통과시키는 저역 필터(20)와, 상기 저역 필터(20)를 통과한 저음 신호를 반전 증폭시키는 증폭부(30)와, 상기 증폭부(30)에서 증폭된 신호를 일정시간 지연시키고 지연된 신호를 증폭시키며 반전 증폭된 신호를 상기 증폭부(30)로 궤환시키는 지연 증폭 및 궤환부(40)와, 상기 지연 증폭 및 궤환부(40)의 출력 신호를 증폭시켜 스피커(SP2)로 출력시키는 비반전 증폭부(50)로 구성된다.The present invention is a low-pass filter 20 for passing only the bass portion of the voice signal output to amplify the voice signal of the voice intermediate frequency amplifier (IO) in the main amplifier (I) to output to the speaker (SP1), and the low-pass filter ( An amplification unit 30 for inverting and amplifying the bass signal passed through 20, a delayed signal amplified by the amplifying unit 30, amplifying the delayed signal, and inverting and amplifying the signal to the amplifying unit 30. And a non-inverting amplifier 50 for amplifying and outputting the output signal of the delay amplifying and feedback unit 40 to the speaker SP2.
즉 본 고안은 음성 중간 주파 증폭부(IO)의 음성 신호중 저음 부분을 저항(R13)과 콘덴서(C8)로 구성된 저역 필터(20)에서 분리하고 분리된 저음 신호는 저항(R1-R4)과 트랜지스터(Q1)로 구성된 증폭부(30)에서 반전 증폭된 후 지연 증폭 및 궤환부(40)의 지연소자(DL1)에서 일정시간 지연되고 저항(R5-R8)이 연결된 트랜지스터(Q2)에서 반전 증폭된 신호는 저항(R11)(R12)을 통하여 트랜지스터(Q2)에서 반전 증폭된 신호는 저항(R9)(R10)와 콘덴서(C5)가 연결된 OP앰프(OP1)에서 비반전 증폭된 후 직류 차단용 콘덴서(C6)를 통하여 스피커(SP2)로 출력되게 비반전 증폭부(50)를 구성한다.That is, the present invention separates the bass portion of the speech signal of the speech intermediate frequency amplifier IO from the low pass filter 20 composed of the resistor R13 and the condenser C8, and the separated bass signal is divided into the resistors R1-R4 and transistors. After inverted and amplified by the amplifier 30 composed of (Q1), the delayed amplification and delay is delayed for a predetermined time in the delay element DL1 of the feedback unit 40 and inverted and amplified in the transistor Q2 to which the resistors R5-R8 are connected. The signal is inverted and amplified by the transistor Q2 through the resistors R11 and R12 and the signal is non-inverted and amplified by the OP amplifier OP1 to which the resistors R9 and R10 and the capacitor C5 are connected. The non-inverting amplifier 50 is configured to be output to the speaker SP2 through C6.
이때 미설명부호 C1-C4는 직류 차단용 콘덴서이다.In this case, reference numeral C1-C4 is a DC blocking capacitor.
이와 같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.
음성중간 주파 증폭부(IO)에서 출력되는 음성 신호는 일측으로 메인앰프(I)에서 증폭되어진 후 스피커(SP1)로 출력되게 되며 또한 타측으로는 저역 필터(20)에서 인가되게 된다.The voice signal output from the voice intermediate frequency amplifier IO is amplified by the main amplifier I to one side and then output to the speaker SP1 and is applied by the low pass filter 20 to the other side.
이때 스피커(SP1)에서는 음성중간 주파 증폭부(IO)에서 출력된 전 주파수 대역 음성 신호가 출력되게 된다.At this time, the speaker SP1 outputs the full frequency band voice signal output from the voice intermediate frequency amplifier IO.
한편 저항(R13)과, 콘덴서(C8)로 구성된 저역 필터(20)에서는 음성중간 주파 증폭부(IO)에서 인가된 음성 신호중 저음 부분만을 통과시키게 되고 저역 필터(20)에서는 통과된 저음 신호는 직류 찬용 콘덴서(C1)를 통하여 저항(R1)(R2)이 연결된 트랜지스터(Q1)의 베이스에 인가되어 트랜지스터(Q1)의 콜렉터 측으로는 반전 증폭된 저음신호가 출력되게 되고 저음신호는 직류 차단용 콘덴서(C2)를 통하여 지연소자(DL1)에 인가되게 된다.On the other hand, the low pass filter 20 composed of the resistor R13 and the condenser C8 passes only the bass portion of the voice signal applied by the voice intermediate frequency amplifier IO, and the low pass signal passed by the low pass filter 20 is a direct current. It is applied to the base of the transistor Q1 to which the resistors R1 and R2 are connected through the cold capacitor C1, and the inverted amplified bass signal is output to the collector side of the transistor Q1, and the bass signal is a DC blocking capacitor ( It is applied to the delay element DL1 through C2).
이때 지연소자(DL1)에서는 입력된 저음 신호를 40-60msec 정도 지연시킨 후 직류 차단용 콘덴서(C3)를 통하여 트랜지스터(Q2)의 베이스에 인가시키게 된다.At this time, the delay element DL1 delays the input bass signal by about 40-60 msec and applies it to the base of the transistor Q2 through the DC blocking capacitor C3.
저항(R5-R8)이 연결된 트랜지스터(Q2)에서는 지연소자(DL1) 지연된 저음 신호를 반전 증폭시킨 후 직류차단용 콘덴서(C4)를 통하여 출력시키게되며 상기 트랜지스터(Q2)에서 출력된 저음신호는 비반전 증폭부(50)의 OP앰프(OP1)에서 비반전 증폭된 후 스피커(SP2)로 출력되게 된다.In the transistor Q2 to which the resistors R5-R8 are connected, the delayed bass signal of the delay element DL1 is inverted and amplified and then output through the DC blocking capacitor C4. The bass signal output from the transistor Q2 is non- After the non-inverted amplification by the OP amplifier OP1 of the inverting amplifier 50 is output to the speaker SP2.
이때 스피커(SP2)로 출력되는 저음 신호는 지연소자(DL1)에서 시간 지연시킨 시간만큼 스피커(SP1)출력신호 보다 늦게 출력되게 된다.At this time, the bass signal output to the speaker SP2 is output later than the speaker SP1 output signal by the time delayed by the delay element DL1.
그리고 트랜지스터(Q2)에서 출력된 저음 신호 중 일부는 저항(R11)(R12)과 콘덴서(C7)를 통한후 트랜지스터(Q1)의 베이스에 궤환되므로 다시 트랜지스터(Q1)에서 반전 증폭되고 지연소자(DL1)에서 지연되며 트랜지스터(Q2)에서 반전증폭된 후 비반전 증폭부(50)를 통하여 스피커(SP2)로 출력되게 된다. 이때 스피커(SP2)로 출력되는 저음 신호는 최초 지연되어 출력된 저음 신호보다 지연되어 출력되게 되며 궤환 작용이 반복적으로 일어나게 되므로 최종 스피커(SP2)로 출력된 저음 신호는 반복 지연되어 에코 현상을 발생시키게 된다.Some of the bass signals output from the transistor Q2 are fed back through the resistors R11 and R12 and the capacitor C7 to the base of the transistor Q1, and thus are inverted and amplified again by the transistor Q1, and the delay element DL1. ), And is inverted and amplified by the transistor Q2 and then output to the speaker SP2 through the non-inverting amplifier 50. At this time, the bass signal output to the speaker SP2 is delayed and output than the bass signal output for the first time and the feedback is repeatedly generated. Therefore, the bass signal output to the final speaker SP2 is repeatedly delayed to generate an echo phenomenon. do.
따라서 저음부 신호를 반복 지연시켜 출력시키게 되므로 종래의 음성신호 출력시보다 현장감있고 입체감있는 음성신호를 즐길 수 있게된다.Therefore, the bass signal is repeatedly delayed and output, thereby allowing the user to enjoy a realistic and three-dimensional voice signal than when outputting a conventional voice signal.
이 같은 본 고안은 음성신호를 재생하는 모든 오디오 기기에 적용가능한 것이다.The present invention is applicable to all audio devices that reproduce voice signals.
이상에서와 같이 본 고안은 음성신호의 저역 부분만을 검출한 후 이를 반복지연시켜 출력시킴으로써 음성신호의 현장감과 입체감을 살릴 수 있는 효과가 있는 것이다.As described above, the present invention detects only the low range part of the voice signal and then outputs it by repeatedly delaying the voice signal, thereby realizing the realism and three-dimensional effect of the voice signal.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880004769U KR910001080Y1 (en) | 1988-04-01 | 1988-04-01 | Audio echo generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880004769U KR910001080Y1 (en) | 1988-04-01 | 1988-04-01 | Audio echo generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890021934U KR890021934U (en) | 1989-11-03 |
| KR910001080Y1 true KR910001080Y1 (en) | 1991-02-21 |
Family
ID=19273880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880004769U Expired KR910001080Y1 (en) | 1988-04-01 | 1988-04-01 | Audio echo generator |
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| Country | Link |
|---|---|
| KR (1) | KR910001080Y1 (en) |
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1988
- 1988-04-01 KR KR2019880004769U patent/KR910001080Y1/en not_active Expired
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| Publication number | Publication date |
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| KR890021934U (en) | 1989-11-03 |
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