JPH07334180A - Sound effect generating device - Google Patents
Sound effect generating deviceInfo
- Publication number
- JPH07334180A JPH07334180A JP6151634A JP15163494A JPH07334180A JP H07334180 A JPH07334180 A JP H07334180A JP 6151634 A JP6151634 A JP 6151634A JP 15163494 A JP15163494 A JP 15163494A JP H07334180 A JPH07334180 A JP H07334180A
- Authority
- JP
- Japan
- Prior art keywords
- input signal
- sound effect
- attenuation
- delay
- signal
- 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.)
- Granted
Links
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電子ギターやその他
の電子楽器、又はカラオケ装置等に効果音を付与するた
めの効果音発生装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound effect generator for applying a sound effect to an electronic guitar, other electronic musical instruments, a karaoke device or the like.
【０００２】[0002]
【従来の技術】電子ギター、電子ドラム、電子ピアノ、
シンセサイザ等の電子楽器では、楽音発生装置から供給
される種々の音階音から、例えばビブラート、リバー
ブ、フェイザー、コーラス等の効果音を生成する効果音
発生装置が用いられる。また、電子楽器以外でも、例え
ばカラオケシステムでは、エコーが効果音として一般的
に用いられている。従来、この種の効果音発生装置とし
ては、入力信号を所定のレベルでクリップすることによ
り、波形を歪ませるディストーション回路や周波数特性
を時間的に変化させて特殊な効果音を発生させる歪ディ
レイ変調回路、更には、高調波歪発生回路とくし形フィ
ルターとを組み合わせたもの等が知られている。2. Description of the Related Art Electronic guitars, electronic drums, electronic pianos,
In an electronic musical instrument such as a synthesizer, a sound effect generator is used that generates sound effects such as vibrato, reverb, phaser, chorus, etc. from various scale sounds supplied from the musical sound generator. In addition to electronic musical instruments, for example, in a karaoke system, echo is generally used as a sound effect. Conventionally, this type of sound effect generator has been known as a distortion delay modulation that generates a special sound effect by temporally changing the distortion circuit that distorts the waveform by clipping the input signal at a predetermined level. A circuit, and further, a combination of a harmonic distortion generating circuit and a comb filter is known.
【０００３】[0003]
【発明が解決しようとする課題】しかし、これらの従来
の効果音発生装置では、発生可能な効果音の種類に限り
があり、より多様な効果音を生成することが困難であ
る。この発明は、このような問題点に鑑みてなされたも
ので、従来よりもバリエーションに富んだ多様な効果音
を発生させることができる効果音発生装置を提供するこ
とを目的とする。However, with these conventional sound effect generators, the types of sound effects that can be generated are limited, and it is difficult to generate a wider variety of sound effects. The present invention has been made in view of such problems, and an object thereof is to provide a sound effect generation device capable of generating a variety of sound effects that are more varied than before.
【０００４】[0004]
【課題を解決するための手段】この発明に係る効果音発
生装置は、入力信号を所定の基準レベルを境として振幅
方向に分割して複数の分割入力信号を出力する入力信号
分割手段と、この入力信号分割手段から出力される複数
の分割入力信号に対してそれぞれ別々に遅延処理を施す
複数の遅延手段と、この複数の遅延手段からの出力及び
前記入力信号を合成して出力信号として出力する合成手
段とを備えたことを特徴とする。The sound effect generator according to the present invention comprises an input signal dividing means for dividing an input signal in the amplitude direction with a predetermined reference level as a boundary and outputting a plurality of divided input signals. A plurality of delay means for individually delaying a plurality of divided input signals output from the input signal division means, and outputs from the plurality of delay means and the input signals are combined and output as an output signal. And a synthesizing means.
【０００５】また、この発明に係る他の効果音発生装置
としては、入力信号を所定の基準レベルを境として振幅
方向に複数分割する入力信号分割手段と、この入力信号
分割手段で分割された複数の分割入力信号に対してそれ
ぞれ別々に遅延処理を施す複数の遅延手段と、この複数
の遅延手段からの出力及び前記入力信号に対してそれぞ
れ別々に減衰量調整処理を施す複数の減衰量調整手段
と、この複数の減数量調整手段の出力を加算して出力信
号として出力する加算手段とを備えようにしてもよい。Another effect sound generator according to the present invention is an input signal dividing means for dividing an input signal into a plurality of pieces in the amplitude direction with a predetermined reference level as a boundary, and a plurality of pieces divided by the input signal dividing means. Delay means for individually delaying the divided input signals, and a plurality of attenuation amount adjusting means for individually performing the attenuation adjustment processing on the outputs from the plurality of delay means and the input signal. And an adding means for adding the outputs of the plurality of reduced quantity adjusting means and outputting as an output signal.
【０００６】これら装置において、前記基準レベル、前
記各遅延手段の遅延時間、及び前記各減衰量調整手段の
減衰量の少なくとも１つを変調信号によって変調するよ
うにしてもよい。In these devices, at least one of the reference level, the delay time of each delay unit, and the attenuation amount of each attenuation amount adjusting unit may be modulated by a modulation signal.
【０００７】[0007]
【作用】この発明によれば、入力信号を振幅方向に分割
して、各分割入力信号をそれぞれ別々に処理して、もと
の入力信号と合成するようにしているので、入力信号全
体を一様に処理する従来の装置よりも、信号処理の組み
合わせの数が大幅に増加する。このため、もとの入力信
号の特徴は残したまま、極めて多様な種類の効果音の合
成が可能になる。合成前の各信号の処理としては、遅延
処理、減衰量調整等があるが、これらの処理及び入力信
号の分割の基準となるレベルの少なくとも一つを変調す
ることによって、更に多様な種類の効果音を生成するこ
とができる。According to the present invention, since the input signal is divided in the amplitude direction and each divided input signal is processed separately and combined with the original input signal, the entire input signal is The number of combinations of signal processing is significantly increased as compared with the conventional apparatus that performs such processing. Therefore, it is possible to synthesize a wide variety of sound effects while maintaining the characteristics of the original input signal. As the processing of each signal before combining, there are delay processing, attenuation amount adjustment, etc., but by modulating at least one of the levels that are the standard for these processing and division of the input signal, more various types of effects can be obtained. A sound can be generated.
【０００８】[0008]
【実施例】以下、図面を参照して、この発明の実施例を
説明する。図１は、この発明の一実施例に係る効果音発
生回路のブロック図である。効果音付与の対象とされる
入力信号は、電子楽器、例えば電子ギターの出力信号や
カラオケ装置の出力信号等である。入力信号は、正半波
検波回路１及び負半波検波回路２に入力され、これらの
各回路１，２で正半波及び負半波に分割される。これら
の分割入力信号は、それぞれ遅延素子３，４に入力さ
れ、それぞれ独立の遅延時間で遅延処理される。これら
遅延素子３，４の出力及び入力信号は、それぞれ減衰量
調整器５，６，７に入力され、それぞれ独立の減衰量で
振幅を調整される。減衰量調整器５，６，７の出力は、
加算器８で加算され、出力信号として出力される。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a sound effect generating circuit according to an embodiment of the present invention. The input signal to which the sound effect is applied is an output signal of an electronic musical instrument such as an electronic guitar or an output signal of a karaoke device. The input signal is input to the positive half-wave detection circuit 1 and the negative half-wave detection circuit 2, and is divided into positive half-wave and negative half-wave by these circuits 1 and 2. These divided input signals are input to the delay elements 3 and 4, respectively, and are subjected to delay processing with independent delay times. The outputs and input signals of these delay elements 3 and 4 are input to attenuation amount adjusters 5, 6 and 7, respectively, and their amplitudes are adjusted by independent attenuation amounts. The outputs of the attenuation adjusters 5, 6, 7 are
The signals are added by the adder 8 and output as an output signal.
【０００９】この回路によれば、図２の（ａ）の様な入
力信号が入力されると、正半波検波回路１で抽出され所
定の遅延処理及び減衰処理を施された図２（ｂ）のよう
な正半波と、負半波検波回路２で抽出され所定の遅延処
理及び減衰処理を施された図２（ｃ）のような負半波と
の合成波形［図２（ｄ）］が、所定の減衰処理を施され
た入力信号と加算器８で合成され、この加算器８の合成
波形（図示せず）を出力信号として得ることができる。
各部の遅延時間及び減衰量はそれぞれ独立に決定するこ
とができるので、遅延時間及び減衰量の組み合わせによ
って様々な合成波形を効果音出力として生成することが
できる。According to this circuit, when an input signal as shown in FIG. 2 (a) is input, it is extracted by the positive half-wave detection circuit 1 and subjected to predetermined delay processing and attenuation processing, as shown in FIG. 2 (b). 2) and a negative half wave as shown in FIG. 2C extracted by the negative half wave detection circuit 2 and subjected to predetermined delay processing and attenuation processing [FIG. 2 (d)] ] Is combined with the input signal subjected to the predetermined attenuation processing by the adder 8, and the combined waveform (not shown) of the adder 8 can be obtained as the output signal.
Since the delay time and the attenuation amount of each part can be independently determined, various combined waveforms can be generated as the sound effect output depending on the combination of the delay time and the attenuation amount.
【００１０】図３は、この発明の他の実施例に係る効果
音発生回路を示すブロック図である。この回路では、遅
延素子３，４の出力をそれぞれ減衰器１１，１２を介し
てフィードバックして、加算器１３，１４で入力と加算
している。また、この回路では、遅延素子３，４の遅延
量及び減衰量調整器５，６，７，１１，１２の減衰量を
例えば正弦波や三角波等の変調信号によって変調するよ
うにしている。この回路によれば、遅延素子の遅延量や
各信号の減衰量を時間的に変化させることにより、周波
数特性を時間的に変化させることができるので、更に特
殊な効果音を生成することができる。FIG. 3 is a block diagram showing a sound effect generating circuit according to another embodiment of the present invention. In this circuit, the outputs of the delay elements 3 and 4 are fed back via the attenuators 11 and 12, respectively, and the adders 13 and 14 add the inputs. Further, in this circuit, the delay amounts of the delay elements 3 and 4 and the attenuation amounts of the attenuation amount adjusters 5, 6, 7, 11, and 12 are modulated by a modulation signal such as a sine wave or a triangular wave. According to this circuit, since the frequency characteristic can be temporally changed by temporally changing the delay amount of the delay element and the attenuation amount of each signal, it is possible to generate a more special sound effect. .
【００１１】図４は、この発明の更に他の実施例に係る
効果音発生回路のブロック図である。この実施例では、
入力信号を２つの基準レベルＶr1，Ｖr2を境に振幅方向
に３分割し、３つの分割入力信号を得るためのクリップ
回路２１，２２，２３が設けられている。これらクリッ
プ回路２１，２２，２３からの分割入力信号は、遅延素
子２４，２５，２６でそれぞれ独立に遅延処理を施され
る。入力信号と遅延素子２４，２５，２６の出力とは減
衰量調整器２７，２８，２９，３０で減衰量を調整さ
れ、加算器３１で合成される。遅延素子２４，２５，２
６の遅延量及び減衰調整器２７，２８，２９，３０の減
衰量は変調信号によって変調するようにしてもよい。FIG. 4 is a block diagram of a sound effect generating circuit according to still another embodiment of the present invention. In this example,
Clip circuits 21, 22, and 23 are provided for dividing the input signal into three in the amplitude direction with two reference levels Vr1 and Vr2 as boundaries, and obtaining three divided input signals. The divided input signals from the clip circuits 21, 22, 23 are individually subjected to delay processing by delay elements 24, 25, 26. The input signal and the outputs of the delay elements 24, 25, 26 are adjusted in attenuation amount by attenuation amount adjusters 27, 28, 29, 30 and combined by an adder 31. Delay elements 24, 25, 2
The delay amount of 6 and the attenuation amount of the attenuation adjusters 27, 28, 29, 30 may be modulated by the modulation signal.
【００１２】この実施例によれば、入力信号が振幅方向
に３分割されるので、効果音の種類が更に増す。また、
基準レベルＶr1，Ｖr2についても時間的に変化させるよ
うに変調をかければ、更に多彩な効果音を発生させるこ
とができる。According to this embodiment, since the input signal is divided into three in the amplitude direction, the types of sound effects are further increased. Also,
If the reference levels Vr1 and Vr2 are also modulated so as to change with time, a wider variety of sound effects can be generated.
【００１３】[0013]
【発明の効果】以上述べたように、この発明によれば、
入力信号を振幅方向に分割して、各分割入力信号をそれ
ぞれ別々に処理して、もとの入力信号と合成するように
しているので、入力信号全体を一様に処理する従来の装
置よりも、信号処理の組み合わせの数が大幅に増加す
る。このため、もとの入力信号の特徴は残したまま、極
めて多様な種類の効果音の合成が可能になる。As described above, according to the present invention,
It divides the input signal in the amplitude direction, processes each divided input signal separately, and synthesizes it with the original input signal. , The number of signal processing combinations is significantly increased. Therefore, it is possible to synthesize a wide variety of sound effects while maintaining the characteristics of the original input signal.
【図１】 この発明の一実施例に係る効果音発生回路の
ブロック図である。FIG. 1 is a block diagram of a sound effect generation circuit according to an embodiment of the present invention.
【図２】 同回路の各部の信号の波形図である。FIG. 2 is a waveform diagram of signals at various parts of the same circuit.
【図３】 この発明の他の実施例に係る効果音発生回路
のブロック図である。FIG. 3 is a block diagram of a sound effect generation circuit according to another embodiment of the present invention.
【図４】 この発明の更に他の同回路の効果音発生回路
のブロック図である。FIG. 4 is a block diagram of a sound effect generation circuit of still another circuit of the present invention.
１…正半波検波回路、２…負半波検波回路、３，４，２
４〜２６…遅延素子、５〜７，１１，１２，２７〜３０
…減衰量調整器、８，１３，１４，３１…加算器、２１
〜２３…クリップ回路。1 ... Positive half-wave detection circuit, 2 ... Negative half-wave detection circuit, 3, 4, 2
4-26 ... Delay element, 5-7, 11, 12, 27-30
... Attenuation adjuster, 8, 13, 14, 31 ... Adder, 21
~ 23 ... Clip circuit.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０３Ｇ 11/00 Ｚ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical indication H03G 11/00 Z
Claims (1)
振幅方向に分割して複数の分割入力信号を出力する入力
信号分割手段と、 この入力信号分割手段から出力される複数の分割入力信
号に対してそれぞれ別々に遅延処理を施す複数の遅延手
段と、 この複数の遅延手段からの出力及び前記入力信号を合成
して出力信号として出力する合成手段とを備えたことを
特徴とする効果音発生装置。1. An input signal dividing means for dividing an input signal in the amplitude direction with a predetermined reference level as a boundary to output a plurality of divided input signals, and a plurality of divided input signals outputted from the input signal dividing means. On the other hand, there is provided a plurality of delaying means for individually performing delaying processing, and a synthesizing means for synthesizing outputs from the plurality of delaying means and the input signals to output as an output signal. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6151634A JP2888138B2 (en) | 1994-06-09 | 1994-06-09 | Sound effect generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6151634A JP2888138B2 (en) | 1994-06-09 | 1994-06-09 | Sound effect generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07334180A true JPH07334180A (en) | 1995-12-22 |
| JP2888138B2 JP2888138B2 (en) | 1999-05-10 |
Family
ID=15522838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6151634A Expired - Fee Related JP2888138B2 (en) | 1994-06-09 | 1994-06-09 | Sound effect generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2888138B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10116088A (en) * | 1996-10-14 | 1998-05-06 | Roland Corp | Effect giving device |
| JP2011133906A (en) * | 2011-03-18 | 2011-07-07 | Yamaha Corp | Effect adding method of audio reproduction and device therefor |
| US8352054B2 (en) | 2008-07-08 | 2013-01-08 | Victor Company Of Japan, Ltd. | Method and apparatus for processing digital audio signal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05232964A (en) * | 1992-02-25 | 1993-09-10 | Yamaha Corp | Musical tone synthesizer |
-
1994
- 1994-06-09 JP JP6151634A patent/JP2888138B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05232964A (en) * | 1992-02-25 | 1993-09-10 | Yamaha Corp | Musical tone synthesizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10116088A (en) * | 1996-10-14 | 1998-05-06 | Roland Corp | Effect giving device |
| US8352054B2 (en) | 2008-07-08 | 2013-01-08 | Victor Company Of Japan, Ltd. | Method and apparatus for processing digital audio signal |
| JP2011133906A (en) * | 2011-03-18 | 2011-07-07 | Yamaha Corp | Effect adding method of audio reproduction and device therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2888138B2 (en) | 1999-05-10 |
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