JPS58139198A - Echo apparatus - Google Patents
Echo apparatusInfo
- Publication number
- JPS58139198A JPS58139198A JP57021464A JP2146482A JPS58139198A JP S58139198 A JPS58139198 A JP S58139198A JP 57021464 A JP57021464 A JP 57021464A JP 2146482 A JP2146482 A JP 2146482A JP S58139198 A JPS58139198 A JP S58139198A
- Authority
- JP
- Japan
- Prior art keywords
- oscillator
- echo
- electronic analog
- low
- pass filter
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はB、B、Dなどの電子的アナログ遅延素子を使
用したエコー装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an echo device using electronic analog delay elements such as B, B, D, etc.
一般にB、B、D等の電子的アナログ遅延素子を使用し
たエコー装置においては、音が一定の周期で繰り返えさ
れるため、エコー感に不自然さが伴いその効果を低減し
ていた。In general, in echo devices using electronic analog delay elements such as B, B, and D, the sound is repeated at a constant cycle, which gives an unnatural feeling to the echo and reduces its effectiveness.
これを解決する方法として、従来、行なわれているもの
は、遅延時間’f: 100m sec以下に設定し、
繰り返し音の周期を長くしてエコー感の不自然さを解消
している。The conventional method to solve this problem is to set the delay time 'f: 100m sec or less,
The repeating sound cycle is lengthened to eliminate the unnatural feeling of an echo.
しかしこの方法の場合、 2.000段以上の多段の電
子的アナログ遅延素子を使用しなければならず高価にな
ると共にエコー装置のSハ比を劣下させていた。一方2
.000段未満の電子的アナログ遅延素子を使用した場
合、その素子の性質上エコー装置の帯域が狭くなる欠点
があった。However, in this method, a multi-stage electronic analog delay element of 2,000 stages or more must be used, which increases the cost and degrades the S/C ratio of the echo device. On the other hand 2
.. When an electronic analog delay element having less than 0,000 stages is used, there is a drawback that the band of the echo device becomes narrow due to the nature of the element.
本発明は従来の欠点を除去し、遅延時間t 100m
sec以下に設定しても繰り返し音による音質劣下が少
なく、かつ広帯域で、安価なエコー装置を得ることを目
的とする。The present invention eliminates the conventional drawbacks and delays the delay time t 100m
To obtain an inexpensive echo device with a wide band and little deterioration in sound quality due to repeated sounds even when set to sec or less.
本発明のエコー装置の一実施例を図面に説明する。An embodiment of the echo device of the present invention will be explained with reference to the drawings.
図は本発明によるエコー装置の構成金示すブロック図で
ある。図において(1)は入力端子、(2)は第1のロ
ーパスフィルタ、(3)はB、H@D、(4)は第2の
ローパスフィルター、(5)はB−B@D(3)を駆動
するクロック発振器、(6)はクロック発振器(5)に
変調を加える発振器、(力は出力端子である。The figure is a block diagram showing the configuration of an echo device according to the present invention. In the figure, (1) is the input terminal, (2) is the first low-pass filter, (3) is B, H@D, (4) is the second low-pass filter, and (5) is B-B@D (3 ), (6) is an oscillator that modulates the clock oscillator (5), (power is the output terminal.
次に本発明のエコー装置の動作について説明する。入力
端子(1)に入った信号は第1のローパスフィルター(
2)を通りB、B、D(3)に入り遅延される。Next, the operation of the echo device of the present invention will be explained. The signal entering the input terminal (1) is passed through the first low-pass filter (
2) and enters B, B, D (3) and is delayed.
この時B−B−D(2)の遅延時間を設定するB・B・
D駆動用クロック発振器(5)に発振器(6)より6H
2前後の正弦波的変化を与える。At this time, set the delay time of B-B-D(2).
6H from the oscillator (6) to the D drive clock oscillator (5)
Gives a sinusoidal change around 2.
これによりB、B、D駆動用クロック発振器(5)はF
M変調をうけ、B′・B、D(3)t−通った信号は遅
延時間が尖頭で2%前後変化する。この信号全組2のロ
ーパスフィルター(4)に通した後、適度に減衰させて
入力に加算する。加算されてB、H・D(3)を通った
信号は、元の入力信号に比べ位相がたえず変化し、加算
後の信号すなわち本発明のエコー装置の出力信号の振巾
はたえず変化する。このため周期の短い繰り返し音腎よ
る音質劣下金時いでいる。As a result, the clock oscillator (5) for driving B, B, and D is
The delay time of the signal that has undergone M modulation and passed through B'·B, D(3)t- changes by about 2% at the peak. After passing this entire signal set 2 through a low-pass filter (4), it is attenuated appropriately and added to the input. The phase of the added signals passing through B, H and D (3) changes constantly compared to the original input signal, and the amplitude of the added signal, that is, the output signal of the echo device of the present invention, changes constantly. As a result, the sound quality deteriorates due to the short repetition rate of the sound.
本発明は上述の構成により、以下のような作用効果を生
ずる。The present invention produces the following effects with the above-described configuration.
(1) 2.000段以上の多段のB@B@Dなどの電
子的アナログ遅延素子を使用した電子回路とほぼ同等の
エコー作用効果’i、 2.000段未満のB、B・D
などの電子的アナログ遅延素子を使用して安価に提供で
きる。(1) Echo effect almost equivalent to an electronic circuit using electronic analog delay elements such as multi-stage B@B@D with 2.000 stages or more, B, B, D with less than 2.000 stages
It can be provided at low cost using electronic analog delay elements such as .
(2)出力信号の振巾は入力振巾の2倍となるため、S
/N比が向上する〇
(3)帯域が広くなる。(2) Since the amplitude of the output signal is twice the input amplitude, S
/N ratio improves (3) The band becomes wider.
図は本発明によるエコー装置の一実施例を示すブロック
図である。
2:ローパスフィルター、3:B−B−D、4:クロッ
ク発振器、5:発振器、6:ローパスフィルター。
特許出願人 松下電器産業株式会社The figure is a block diagram showing an embodiment of an echo device according to the present invention. 2: Low-pass filter, 3: B-B-D, 4: Clock oscillator, 5: Oscillator, 6: Low-pass filter. Patent applicant Matsushita Electric Industrial Co., Ltd.
Claims (1)
ログ遅延素子および第20−バスフイルターを直列接続
し、前記電子的アナログ遅延素子の遅延時間を設定する
クロ、り発振器と、前記クロック発振器に変調を加える
発振器を設け、前記クロ、り発振器に前記変調を加える
発振器より6Hz前後の正弦波的変化を与えかつ、遅延
時間の変化率が尖頭値で2%前後になるよう設定したこ
とを特徴とするエコー装置。ml low-pass filter, an electronic analog delay element such as B, B@D, and a 20th bus filter are connected in series, and a clock oscillator that sets the delay time of the electronic analog delay element and modulated to the clock oscillator. An oscillator that applies modulation is provided, the oscillator that applies modulation gives a sinusoidal change of around 6 Hz to the black oscillator, and the rate of change of the delay time is set to be around 2% at the peak value. echo device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57021464A JPS58139198A (en) | 1982-02-13 | 1982-02-13 | Echo apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57021464A JPS58139198A (en) | 1982-02-13 | 1982-02-13 | Echo apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58139198A true JPS58139198A (en) | 1983-08-18 |
Family
ID=12055698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57021464A Pending JPS58139198A (en) | 1982-02-13 | 1982-02-13 | Echo apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58139198A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6253100A (en) * | 1985-09-02 | 1987-03-07 | Nippon Gakki Seizo Kk | Acoustic characteristic controller |
US5388068A (en) * | 1990-05-02 | 1995-02-07 | Microelectronics & Computer Technology Corp. | Superconductor-semiconductor hybrid memory circuits with superconducting three-terminal switching devices |
-
1982
- 1982-02-13 JP JP57021464A patent/JPS58139198A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6253100A (en) * | 1985-09-02 | 1987-03-07 | Nippon Gakki Seizo Kk | Acoustic characteristic controller |
JPH0562996B2 (en) * | 1985-09-02 | 1993-09-09 | Yamaha Corp | |
US5388068A (en) * | 1990-05-02 | 1995-02-07 | Microelectronics & Computer Technology Corp. | Superconductor-semiconductor hybrid memory circuits with superconducting three-terminal switching devices |
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