JPH067680Y2 - Acoustic signal controller - Google Patents
Acoustic signal controllerInfo
- Publication number
- JPH067680Y2 JPH067680Y2 JP1984069020U JP6902084U JPH067680Y2 JP H067680 Y2 JPH067680 Y2 JP H067680Y2 JP 1984069020 U JP1984069020 U JP 1984069020U JP 6902084 U JP6902084 U JP 6902084U JP H067680 Y2 JPH067680 Y2 JP H067680Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- control signal
- signal
- frequency component
- level
- 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は音響信号の周波数成分及び音像定位を変化させ
ることのできる音響信号制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an acoustic signal control device capable of changing the frequency component of an acoustic signal and the sound image localization.
従来、電子楽器においては、自然音に近い楽音を得るた
め楽音信号の周波数成分を時間と共に変化させるものが
種々実現化されているが、このようなものは、ＶＣＦ
（電圧制御形フィルタ）を接続してこのＶＣＦに制御電
圧を与えることによりカットオフ周波数を変えて楽音信
号の周波数成分を変えるようになっている。Conventionally, various electronic musical instruments have been realized in which the frequency component of a musical tone signal is changed with time in order to obtain a musical tone close to a natural sound.
By connecting a (voltage control type filter) and applying a control voltage to this VCF, the cutoff frequency is changed to change the frequency component of the tone signal.
しかしながら、近年では、種々の効果音、例えば波の音
や風の音などの自然音を発生させることができる装置が
望まれている。このような自然音は、時間の経過と共に
発生する音の周波数成分が変化すると共に、音の発生源
もそれに基づいて、移動するような複雑な変化をする。
こうした自然音は、単に周波数成分を変化させるだけの
従来の装置では、実現させることができなかった。However, in recent years, there has been a demand for a device capable of generating various sound effects, for example, natural sounds such as waves and winds. Such a natural sound changes in a frequency component of the sound generated with the passage of time, and the source of the sound makes a complicated change such that the sound source moves.
Such a natural sound cannot be realized by a conventional device that simply changes the frequency component.
そこで本考案は、上述した波の音や風の音などの自然音
をより忠実に再現可能とした音響信号制御装置を提供す
ることを目的とするものである。Therefore, an object of the present invention is to provide an acoustic signal control device capable of more faithfully reproducing natural sounds such as the sound of waves and the sound of wind described above.
この目的を達成するため、波の音や風の音などの自然音
は、音の周波数成分が変化すると共に、音の発生源、す
なわち音像定位も変化し、なおかつ、その音像定位が周
波数成分の変化に対応付けられて変化するという点に着
目し、本考案は入力された音響信号を周波数成分変化手
段を介して、第１及び第２の増幅手段に入力させると共
に、上記周波数成分変化手段を制御する制御信号をその
まま一方の上記増幅手段の制御信号とすると共に、上記
制御信号のレベルを反転した制御信号を得て、この制御
信号を他方の増幅手段の制御信号とすることを要点とす
るものである。In order to achieve this purpose, natural sound such as sound of waves and wind changes not only in the frequency component of the sound but also in the source of the sound, that is, in the sound image localization, and the sound image localization changes in the frequency component. Focusing on the fact that they are associated and change, the present invention inputs the input acoustic signal to the first and second amplifying means through the frequency component changing means and controls the frequency component changing means. The main point is to use the control signal as it is as the control signal for one of the amplification means, obtain a control signal with the level of the control signal inverted, and use this control signal as the control signal for the other amplification means. is there.
以下本考案の一実施例につき、図面を参照して詳述す
る。An embodiment of the present invention will be described in detail below with reference to the drawings.
第１図中１はＶＣＦ（電圧制御形フィルタ）であって、
このＶＣＦ１は入力される楽音信号のうちカットオフ周
波数以下の周波数成分を通過させて、ライトＶＣＡ（電
圧制御形増幅器）２及びレフトＶＣＡ３に与える。また
このＶＣＦ１には制御電圧発生回路４からの制御信号が
与えられ、この制御信号のレベルが高いほどカットオフ
周波数が高くなり、出力される楽音信号の周波数成分に
高調波分がより多く含まれる。In FIG. 1, 1 is a VCF (voltage control type filter),
The VCF 1 passes a frequency component below the cutoff frequency of the input musical tone signal and gives it to the right VCA (voltage control type amplifier) 2 and the left VCA 3. A control signal from the control voltage generation circuit 4 is applied to the VCF 1. The higher the level of the control signal, the higher the cutoff frequency, and the higher the harmonic component contained in the frequency component of the output musical tone signal. .
上記ライトＶＣＡ２及びレフトＶＣＡ３は、各々ＶＣＦ
１より与えられる楽音信号を増幅してライトスピーカ５
及びレフトスピーカ６に与えて放音させる。そして上記
ライトＶＣＡ２には、上記制御電圧発生回路４からの制
御信号が与えられ、この制御信号のレベルが高いほど増
幅度が大きくなり音量レベルが大きくなる。またレフト
ＶＣＡ３には、上記制御電圧発生回路４からの制御信号
が反転回路７で高レベルを低レベルに、低レベルを高レ
ベルとした反転信号が与えられ、同様に反転信号のレベ
ルが高いほど増幅度が大きくなり音量レベルが大きくな
る。The right VCA2 and the left VCA3 are VCFs, respectively.
Amplify the musical sound signal given by 1 to the light speaker 5
And the left speaker 6 to emit the sound. A control signal from the control voltage generating circuit 4 is applied to the write VCA2, and the higher the level of this control signal, the higher the amplification degree and the higher the volume level. Further, the left VCA 3 is provided with an inversion signal in which the control signal from the control voltage generation circuit 4 is changed to a high level by the inversion circuit 7 and a low level is set to a high level. The amplification level increases and the volume level increases.
次に本実施例の動作につき述べる。 Next, the operation of this embodiment will be described.
いま制御電圧発生回路４より第２図に示すような波形の
制御信号を出力させるものとすると、この制御信号はＶ
ＣＦ１及びライトＶＣＡ２に与えられる。又反転回路７
を介した制御信号はレフトＶＣＡ３に与えられる。この
制御信号の波形を第３図に示す。そして、ＶＣＦ１に楽
音信号が入力されてくると、第２図、第３図のＴ１の時
点では制御信号のレベルが低いからＶＣＦ１の出力は低
周波成分のみの低い音の楽音信号となる。この楽音信号
はライトＶＣＡ２では制御信号のレベルが低いのでレベ
ルの低い楽音信号となってライトスピーカ５より放音さ
れる。他方レフトＶＣＡ３では楽音信号は反転信号のレ
ベルが逆に高いのでレベルの高い楽音信号となってレフ
トスピーカ６より放音される。Assuming that the control voltage generating circuit 4 outputs a control signal having a waveform as shown in FIG.
It is given to CF1 and write VCA2. Inversion circuit 7
The control signal via the is supplied to the left VCA3. The waveform of this control signal is shown in FIG. When the musical tone signal to VCF1 come inputted, FIG. 2, the output of from a low level of control signal at the time of T 1 of the Figure 3 VCF1 becomes a tone signal lower sound only low frequency components. This musical tone signal has a low control signal level in the light VCA 2 and is therefore emitted from the light speaker 5 as a musical tone signal having a low level. On the other hand, in the left VCA 3, the tone signal has a high level of the inverted signal, so that the tone signal becomes a high-level tone signal and is emitted from the left speaker 6.
このため、両スピーカ５、６により形成される音像定位
はスピーカ５、６に向って左に寄り、放音される楽音は
低周波成分が強調されたものとなる。Therefore, the sound image localization formed by the speakers 5 and 6 is shifted to the left toward the speakers 5 and 6, and the emitted musical sound is emphasized in the low frequency component.
次にＴ２の時点では、Ｔ１の場合と逆に制御信号レベル
が高く、反転信号レベルが低くなるので、ＶＣＦ１の出
力は高周波成分を含んだものとなり、ライトＶＣＡ２の
出力レベルの方がレフトＶＣＡ３の出力レベルより大き
くなる。このため音像定位は右に寄り、放音される楽音
は高調波成分が強調されたものとなる。At the time of T 2 Next, the case of T 1 and opposite to the control signal level is high, since the inverted signal level becomes low, the output of VCF1 becomes one that contains a high frequency component, towards the output level of the light VCA2 are left It becomes higher than the output level of VCA3. For this reason, the sound image localization is shifted to the right, and the emitted musical sound has the harmonic components emphasized.
さらにＴ３の時点では、制御信号、反転信号ともに中位
の同レベルとなるから、音像定位は両スピーカ５、６の
真中で、放音される楽音の周波数成分は中位のものとな
る。In yet time of T 3, control signals, since the same level of medium in both the inverted signal, the sound image localization in the middle of both speakers 5 and 6, the frequency components of the musical tone to be sounded is becomes moderate.
Ｔ４の時点では上述のＴ１と全く同じであり、音像定位
は左に寄り、しかも低周波成分が強調された楽音とな
る。At the time of T 4 , it is exactly the same as the above-mentioned T 1 , and the sound image localization is shifted to the left, and a low frequency component is emphasized in the musical sound.
こうして、放音される楽音の高調波成分が多くなるに従
って音像定位は右へ移動し、逆に放音される楽音の高調
波成分が少なくなるに従って音像定位は左へ移動して、
音にひろがりができる。Thus, the sound image localization moves to the right as the harmonic components of the emitted musical sound increase, and conversely the sound image localization moves to the left as the harmonic components of the emitted musical sound decrease.
The sound can be expanded.
なお、上記実施例ではＶＣＦ１に制御電圧発生回路４か
らの制御信号を与えていたが、反転回路７からの反転信
号を与えるようにして、音像定位の移動と楽音の高調波
成分の含有量の変化とを逆向にしてもよく、これはライ
トＶＣＡ２に反転信号、レフトＶＣＡ３に制御信号を与
えるようにしても実現できる。Although the control signal from the control voltage generation circuit 4 is applied to the VCF 1 in the above embodiment, the inversion signal from the inversion circuit 7 is applied to shift the sound image localization and the content of the harmonic component of the musical sound. The change may be reversed, and this can be realized by giving an inverted signal to the right VCA2 and a control signal to the left VCA3.
また制御信号は第２図のようなものの他、正弦波、三角
波、方形波等でもよい。Further, the control signal may be a sine wave, a triangular wave, a square wave or the like other than that shown in FIG.
さらに、スピーカ５、６の配置は水平に左右に配置する
だけでなく、上下、斜め等の配置でもよく、ＶＣＦ１に
は楽音信号の他、音声信号等を入力させるようにしても
よい。Further, the speakers 5 and 6 are not limited to be horizontally arranged on the left and right, but may be arranged vertically, diagonally, or the like, and the VCF 1 may be made to receive a voice signal as well as a musical tone signal.
以上述べたように、本考案は、音響信号の周波数成分の
変化に伴って、増幅手段で増幅される信号のレベルを夫
々変化させて音像定位も変化させるようにしたので、例
えば音像定位が右寄りのときに高調波成分が多く、左寄
りのときに低周波成分が多いというように放音される音
響に音のひろがりをもたせることができる。このため、
音色の変化に対応して音の発生源も変化するような、波
の音や風の音などの自然音を忠実に再現することができ
る。As described above, according to the present invention, as the frequency component of the acoustic signal changes, the level of the signal amplified by the amplification means is also changed to change the sound image localization. It is possible to make the sound emitted have a wide range of sound, such as that there are many higher harmonic components when, and more low frequency components when moving to the left. For this reason,
It is possible to faithfully reproduce a natural sound such as a sound of a wave or a sound of a wind in which a sound source changes in response to a change in a tone color.
図面は本考案の一実施例を示すもので、第１図は音の高
調波成分の含有量と音像定位を変化させるための回路
図、第２図は制御電圧発生回路４の出力である制御信号
の出力波形図、第３図は制御信号が反転回路７を介して
反転された反転信号の出力波形図である。 １……ＶＣＦ（電圧制御形フィルタ）、２……ライトＶ
ＣＡ（電圧制御形増幅器）、３……レフトＶＣＡ、４…
…制御電圧発生回路、５……ライトスピーカ、６……レ
フトスピーカ、７……反転回路。The drawings show one embodiment of the present invention. FIG. 1 is a circuit diagram for changing the content of the harmonic components of the sound and the sound image localization, and FIG. 2 is the output of the control voltage generating circuit 4. FIG. 3 is an output waveform diagram of a signal, and FIG. 3 is an output waveform diagram of an inverted signal obtained by inverting the control signal via the inverting circuit 7. 1 ... VCF (voltage control type filter), 2 ... write V
CA (voltage control type amplifier), 3 ... Left VCA, 4 ...
Control voltage generator circuit, 5 right speaker, 6 left speaker, 7 inversion circuit.
Claims (1)
の制御信号に応じて変化させて出力する周波数成分可変
手段と、 上記周波数成分可変手段からの出力信号のレベルを上記
制御信号に基いて制御して出力する第１の増幅手段と、 上記周波数成分可変手段からの出力信号のレベルを上記
制御信号のレベルを反転した制御信号に基いて制御して
出力する第２の増幅手段と、 を有することを特徴とする音響信号制御装置。1. A control signal generating means for generating a control signal, a frequency component varying means for varying and outputting a frequency component of an input acoustic signal according to a control signal from the control signal generating means, and the frequency component varying means. First amplification means for controlling and outputting the level of the output signal from the means based on the control signal, and the level of the output signal from the frequency component varying means based on the control signal obtained by inverting the level of the control signal. And a second amplifying means for controlling and outputting the sound signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984069020U JPH067680Y2 (en) | 1984-05-14 | 1984-05-14 | Acoustic signal controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984069020U JPH067680Y2 (en) | 1984-05-14 | 1984-05-14 | Acoustic signal controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60181792U JPS60181792U (en) | 1985-12-03 |
| JPH067680Y2 true JPH067680Y2 (en) | 1994-02-23 |
Family
ID=30604302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984069020U Expired - Lifetime JPH067680Y2 (en) | 1984-05-14 | 1984-05-14 | Acoustic signal controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067680Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2990829B2 (en) * | 1991-03-29 | 1999-12-13 | ヤマハ株式会社 | Effect giving device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52125315A (en) * | 1976-04-13 | 1977-10-21 | Nippon Gakki Seizo Kk | Electronic musical instrrument |
| JPS5324269U (en) * | 1976-08-09 | 1978-03-01 | ||
| JPS5366212A (en) * | 1976-11-25 | 1978-06-13 | Philips Nv | Sound device |
| JPS55121492A (en) * | 1979-03-14 | 1980-09-18 | Nippon Musical Instruments Mfg | Electronic musical instrument |
-
1984
- 1984-05-14 JP JP1984069020U patent/JPH067680Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52125315A (en) * | 1976-04-13 | 1977-10-21 | Nippon Gakki Seizo Kk | Electronic musical instrrument |
| JPS5324269U (en) * | 1976-08-09 | 1978-03-01 | ||
| JPS5366212A (en) * | 1976-11-25 | 1978-06-13 | Philips Nv | Sound device |
| JPS55121492A (en) * | 1979-03-14 | 1980-09-18 | Nippon Musical Instruments Mfg | Electronic musical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60181792U (en) | 1985-12-03 |
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