JPH04301688A - Electronic musical instrument - Google Patents
Electronic musical instrumentInfo
- Publication number
- JPH04301688A JPH04301688A JP3066651A JP6665191A JPH04301688A JP H04301688 A JPH04301688 A JP H04301688A JP 3066651 A JP3066651 A JP 3066651A JP 6665191 A JP6665191 A JP 6665191A JP H04301688 A JPH04301688 A JP H04301688A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- sound
- key
- musical
- reverberation
- 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
- 230000000694 effects Effects 0.000 claims abstract description 53
- 230000005236 sound signal Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000004807 localization Effects 0.000 description 8
- 239000011295 pitch Substances 0.000 description 6
- 230000002123 temporal effect Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 241001342895 Chorus Species 0.000 description 1
- HAORKNGNJCEJBX-UHFFFAOYSA-N cyprodinil Chemical compound N=1C(C)=CC(C2CC2)=NC=1NC1=CC=CC=C1 HAORKNGNJCEJBX-UHFFFAOYSA-N 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、鍵盤の押下鍵の音高に
対応する楽音を複数の出力装置によって立体音響で発生
する電子楽器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument that generates musical tones corresponding to the pitches of pressed keys on a keyboard in three-dimensional sound using a plurality of output devices.
【０００２】0002
【従来の技術】従来、電子楽器において、例えば特公昭
６２−５５１５８号公報に開示されているように、楽音
信号とこの楽音信号を遅延させて生成した残響音信号と
を合成することにより楽音に残響音を付加して発音する
ようにしたものが知られており、演奏会場等の残響効果
を得ることができる。なお、この電子楽器は選択した音
色に応じて所定の残響音を付加できるようにしたもので
ある。2. Description of the Related Art Conventionally, in electronic musical instruments, as disclosed in Japanese Patent Publication No. 62-55158, for example, a musical tone signal is synthesized with a reverberant sound signal generated by delaying the musical tone signal. A device that generates sound by adding reverberant sound is known, and it is possible to obtain the reverberant effect of a performance venue or the like. Note that this electronic musical instrument is capable of adding a predetermined reverberation sound depending on the selected timbre.
【０００３】ところで、アコースティックのピアノは各
鍵に対応する多数の弦とこの各弦の振動を個別に抑制す
るダンパーとを備えており、普通に押鍵しただけでは対
応する弦のダンパーだけが開放されてその開放弦だけが
振動するが、足元のペダルで全ての弦あるいは一部の弦
を開放弦にすることができ、このペダルを踏んだ状態で
押鍵すると、弾かれた弦に対して周波数特性がオクター
ブ関係であるなど特別な音程関係を有する弦は特に共鳴
し、ピアノ全体が鳴り出したような共鳴効果が得られる
。[0003] By the way, an acoustic piano is equipped with a large number of strings corresponding to each key and a damper that suppresses the vibration of each string individually, and when a key is pressed normally, only the damper of the corresponding string is released. However, by using the foot pedal, you can make all or some of the strings open, and if you press a key with this pedal depressed, the strings that are played will vibrate. Strings that have a special pitch relationship, such as an octave frequency response, resonate particularly, producing a resonance effect that makes the whole piano sound.
【０００４】また、例えば数鍵を静かに押鍵した状態で
一つの鍵を普通に押鍵すると押鍵によってダンパーが開
放されている弦が弾いた音に共鳴するようになる。この
現象はパイプオルガン等にも見られる現象で、演奏に応
じて響きが変化するなど豊かな音響効果を得ることがで
きる。[0004] For example, if one key is pressed normally while several keys have been pressed quietly, the string whose damper is released will resonate with the played sound. This phenomenon is also seen in pipe organs, etc., and can produce rich acoustic effects such as changing the resonance depending on the performance.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来の
電子楽器では、楽音に付加される残響音は選択した音色
や楽器自体によって決められるため、演奏に応じて響き
が変化するなど豊かな音響効果を得ることが困難であっ
た。本発明は、電子楽器において演奏に応じて響きが変
化するなど豊かな音響効果を得ることを課題とする。[Problems to be Solved by the Invention] However, with conventional electronic musical instruments, the reverberation added to musical sounds is determined by the selected tone and the instrument itself, so it is difficult to create rich acoustic effects such as changing the resonance depending on the performance. It was difficult to obtain. SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic musical instrument with rich acoustic effects such as a change in resonance depending on the performance.
【０００６】[0006]
【課題を解決するための手段】本発明の電子楽器は、鍵
盤部の押鍵情報を検出して押下鍵に対応する音高の楽音
信号を生成し、複数の出力装置による立体音響で楽音を
発生するようにした電子楽器において、前記楽音信号を
加工することにより前記出力装置で形成される音像を変
化させる音像効果付与手段と、該音像効果付与手段で楽
音信号を変換する際の変換情報を時間変化させる効果制
御手段とを備え、上記効果制御手段により、前記押鍵情
報の検出時から前記楽音の音像を時間変化させるように
したことを特徴とする。[Means for Solving the Problems] The electronic musical instrument of the present invention detects key press information on a keyboard section, generates a musical tone signal of a pitch corresponding to the pressed key, and outputs a musical tone with stereophonic sound using a plurality of output devices. The electronic musical instrument is configured to generate a musical sound signal, and the electronic musical instrument includes a sound image effect applying means for changing a sound image formed by the output device by processing the musical sound signal, and a conversion information when converting the musical sound signal by the sound image effect applying means. The present invention is characterized in that the sound image of the musical tone is changed over time by the effect control means from the time when the key press information is detected.
【０００７】[0007]
【作用】本発明の電子楽器は、押下鍵に対応する音高の
楽音を複数の出力装置によって立体音響で発音する。こ
のとき、音像効果付与手段は楽音信号を変換するととも
に、効果制御手段がこの変換の際の変換情報を押鍵情報
の検出時から時間変化させ、出力装置で形成される音像
を変化させる。すなわち、押鍵によって発音される楽音
の音像は押鍵時から時間変化し、演奏に応じて響きが変
化する。[Operation] The electronic musical instrument of the present invention generates musical tones of pitches corresponding to pressed keys in stereophonic sound using a plurality of output devices. At this time, the sound image effect imparting means converts the musical tone signal, and the effect control means changes the conversion information during this conversion over time from the time when the key press information is detected, thereby changing the sound image formed by the output device. That is, the sound image of a musical tone produced by pressing a key changes over time from the time the key is pressed, and the sound changes depending on the performance.
【０００８】[0008]
【実施例】図１は本発明による電子楽器の一実施例を示
すブロック図であり、鍵盤１はピアノの鍵盤と同様に例
えば８８個の鍵と各鍵に対応するスイッチ等で構成され
、操作子２はサステインペダルやソフトペダルから構成
されている。[Embodiment] Fig. 1 is a block diagram showing an embodiment of an electronic musical instrument according to the present invention.A keyboard 1 is composed of, for example, 88 keys and switches corresponding to each key, like a piano keyboard. Child 2 consists of a sustain pedal and a soft pedal.
【０００９】操作検出部３は、鍵盤１と操作子２の操作
状態を検出し、鍵盤１の操作により、鍵の押離に応じた
キーオン信号（ＫＯＮ）、押鍵された鍵に対応するキー
コード（ＫＣ）および押鍵の強さを示すタッチ信号（Ｔ
ＣＨ）を発生し、操作子２の操作により、サステインペ
ダルやソフトペダルのオン・オフや踏込み量などを示す
ペダル信号（ＰＤＬ）を発生する。The operation detection unit 3 detects the operation status of the keyboard 1 and the operator 2, and when the keyboard 1 is operated, a key-on signal (KON) corresponding to the press and release of a key is generated, and a key corresponding to the pressed key is generated. The code (KC) and the touch signal (T
When the operator 2 is operated, a pedal signal (PDL) indicating the on/off status, amount of depression, etc. of the sustain pedal or soft pedal is generated.
【００１０】設定部４は、図示しない操作スイッチ等に
より楽音の音色や残響音の種類などを指定する入力部で
あり、指定された音色に対応する音源パラメータ（ＴＧ
Ｐ）と指定した残響音に対応する効果パラメータ信号（
ＥＦＰ）を出力する。The setting section 4 is an input section for specifying the timbre of a musical tone, the type of reverberation, etc. using an operation switch (not shown), etc., and inputs sound source parameters (TG) corresponding to the specified timbre.
P) and the effect parameter signal corresponding to the specified reverberant sound (
EFP) is output.
【００１１】楽音波形発生部５は、操作検出部３からの
各信号（ＫＯＮ、ＫＣ、ＴＣＨ、ＰＤＬ）と設定部４か
らの音源パラメータ信号（ＴＧＰ）に基づいて楽音信号
（ディジタル楽音信号）（ＷＡＶＥ）を発生して音像効
果付与部６に出力する。なお、音源パラメータ（ＴＧＰ
）は発生する楽音信号の波形など音色に関する設定デー
タであり、鍵盤１の押下鍵に対応する音高と強さおよび
設定部４で設定された音色に対応する楽音信号が発生さ
れる。The musical sound waveform generating section 5 generates a musical tone signal (digital musical tone signal) ( WAVE) and outputs it to the sound image effect applying section 6. In addition, the sound source parameters (TGP
) is setting data regarding the timbre such as the waveform of the musical tone signal to be generated, and a musical tone signal corresponding to the tone pitch and intensity corresponding to the depressed key of the keyboard 1 and the tone set in the setting section 4 is generated.
【００１２】音像効果付与部６は、楽音波形発生部５か
ら入力される楽音信号（ＷＡＶＥ）に残響信号を付加し
て左右両チャンネルの楽音信号（ＬＯＵＴ ，ＲＯＵＴ
）を出力し、この残響信号が付加された楽音信号（Ｌ
ＯＵＴ ，ＲＯＵＴ ）はＤ／Ａ変換器８Ｌ，８Ｒとア
ンプ９Ｌ，９Ｒを介してスピーカ１０Ｌ，１０Ｒにそれ
ぞれ出力され、楽音がステレオ出力される。The sound image effect adding section 6 adds a reverberation signal to the musical sound signal (WAVE) inputted from the musical waveform generating section 5 to generate musical sound signals (LOUT, ROUT) of both left and right channels.
), and a musical tone signal (L
OUT, ROUT) are output to speakers 10L and 10R via D/A converters 8L and 8R and amplifiers 9L and 9R, respectively, so that musical tones are output in stereo.
【００１３】効果制御部７は、設定部４からの効果パラ
メータ信号（ＥＦＰ）と操作検出部３からのキーオン信
号（ＫＯＮ）およびペダル信号（ＰＤＬ）に基づいて音
像効果付与部６に効果制御パラメータ信号（ＥＦＣＰ）
を出力する。これによって、音像効果付与部６は左右両
チャンネルそれぞれの楽音信号のレベルを変化させると
ともに、左右両チャンネルの楽音信号に付加する左右両
チャンネルそれぞれの残響信号のレベルを変化させ、こ
の楽音信号のレベルと残響信号のレベルに応じて音像が
変化される。The effect control section 7 applies effect control parameters to the sound image effect applying section 6 based on the effect parameter signal (EFP) from the setting section 4 and the key-on signal (KON) and pedal signal (PDL) from the operation detection section 3. Signal (EFCP)
Output. As a result, the sound image effect applying section 6 changes the level of the musical sound signal of both the left and right channels, and also changes the level of the reverberation signal of the left and right channels added to the musical sound signal of both the left and right channels, and the level of this musical sound signal. The sound image changes depending on the level of the reverberation signal.
【００１４】図２は音像効果付与部６と効果制御部７の
ブロック図である。音像効果付与部６は、左右両チャン
ネルそれぞれの楽音信号（ＷＡＶＥ）のレベルを調整す
る乗算器６１Ｌ，６１Ｒ、楽音信号から左右両チャンネ
ルに対応する残響信号を生成する残響効果処理部６２、
この残響効果処理部６２からの残響信号のレベルを調整
する乗算器６３Ｌ，６３Ｒ、および、この乗算器６３Ｌ
，６３Ｒからの残響信号を乗算器６１Ｌ，６１Ｒからの
各楽音信号にそれぞれ加算する加算器６４Ｌ，６４Ｒを
備えている。FIG. 2 is a block diagram of the sound image effect applying section 6 and the effect control section 7. The sound image effect applying unit 6 includes multipliers 61L and 61R that adjust the levels of musical sound signals (WAVE) for both the left and right channels, a reverberation effect processing unit 62 that generates reverberation signals corresponding to both the left and right channels from the musical sound signals,
Multipliers 63L and 63R that adjust the level of the reverberation signal from the reverberation effect processing section 62, and this multiplier 63L.
, 63R are added to the musical tone signals from multipliers 61L and 61R, respectively.
【００１５】また、効果制御部７は、楽音信号と残響信
号のレベルを設定するレベル・定位係数発生部７１、残
響信号の特性を指定する残響パラメータ発生部７２、残
響信号のエンベロープを設定するエンベロープジェネレ
ータ（ＥＧ）７３、および、このエンベロープに則して
残響信号のレベルを変化させる乗算器７４Ｌ，７４Ｒを
備えている。The effect control section 7 also includes a level/localization coefficient generation section 71 that sets the levels of the musical tone signal and the reverberation signal, a reverberation parameter generation section 72 that specifies the characteristics of the reverberation signal, and an envelope that sets the envelope of the reverberation signal. It includes a generator (EG) 73 and multipliers 74L and 74R that change the level of the reverberation signal according to this envelope.
【００１６】なお、効果制御部７に入力される効果パラ
メータ（ＥＦＰ）は、全体の音量と左右両チャンネルの
音量配分を設定する音量・定位設定データ（ＶＯＬＰＡ
Ｎ）、残響信号に関する残響信号設定データ（ＲＥＶＰ
）および残響信号のエンベロープに関するエンベロープ
設定データ（ＥＧＰ）を含んでいる。Note that the effect parameter (EFP) input to the effect control section 7 is the volume/localization setting data (VOLPA) that sets the overall volume and the volume distribution of both left and right channels.
N), reverberation signal setting data (REVP
) and envelope setting data (EGP) regarding the envelope of the reverberant signal.
【００１７】音像効果付与部６において、入力される楽
音信号には乗算器６１Ｌ，６１Ｒによって所定の係数が
乗算され、それぞれ左右両チャンネルの楽音信号が生成
される。In the sound image effect imparting section 6, the input musical tone signal is multiplied by a predetermined coefficient by multipliers 61L and 61R, thereby generating musical tone signals for both left and right channels, respectively.
【００１８】残響効果処理部６２は、例えば特公昭６２
−５５１５８号広報に開示されていると同様な公知の残
響音付加装置で構成されており、多数の遅延回路や乗算
器によって残響信号を生成する。なお、この残響信号を
左右両チャンネルに対応するステレオ出力とするために
は、例えば遅延回路の出力位置を変えて左右両チャンネ
ルに対応して位相のずれた残響信号を生成すればよい。The reverberation effect processing section 62 is, for example,
It is composed of a known reverberation sound adding device similar to that disclosed in Publication No. 55158, and generates a reverberation signal using a large number of delay circuits and multipliers. In order to make this reverberation signal a stereo output corresponding to both the left and right channels, for example, the output position of the delay circuit may be changed to generate a reverberation signal with a phase shift corresponding to both the left and right channels.
【００１９】残響効果処理部６２からの残響信号には乗
算器６３Ｌ，６３Ｒによって係数が乗算され、加算器６
４Ｌ，６４Ｒでそれぞれ左右両チャンネルの楽音信号に
加算され、残響信号が付加された楽音信号（ＬＯＵＴ
，ＲＯＵＴ ）が加算器６４Ｌ，６４Ｒから出力される
。The reverberation signal from the reverberation effect processing unit 62 is multiplied by a coefficient by multipliers 63L and 63R, and
The musical sound signals (LOUT
, ROUT) are output from adders 64L and 64R.
【００２０】一方、効果制御部７において、レベル・定
位係数発生部７１は、効果パラメータ（ＥＦＰ）の音量
・定位設定データ（ＶＯＬＰＡＮ）に基づいて音量と定
位を決める乗算係数を生成し、この乗算係数を乗算器６
１Ｌ，６１Ｒに出力する。なお、この乗算器６１Ｌ，６
１Ｒの乗算係数によって音像の定位が設定される。また
、レベル・定位係数発生部７１は、残響信号のレベルの
基準を決める乗算係数を乗算器７４Ｌ，７４Ｒに出力す
る。On the other hand, in the effect control section 7, a level/localization coefficient generation section 71 generates a multiplication coefficient that determines the volume and localization based on the volume/localization setting data (VOLPAN) of the effect parameter (EFP), and Coefficient multiplier 6
Output to 1L and 61R. Note that this multiplier 61L, 6
The localization of the sound image is set by the multiplication coefficient of 1R. Further, the level/localization coefficient generating section 71 outputs a multiplication coefficient that determines the level standard of the reverberation signal to the multipliers 74L and 74R.
【００２１】残響パラメータ発生部７２は、ペダル信号
（ＰＤＬ）に応じて操作子２におけるペダルの踏み込み
が検出されているとき、キーオン信号（ＫＯＮ）を検出
すると、残響信号設定データ（ＲＥＶＰ）に基づいて生
成した残響効果パラメータ（ＥＦＴＰ）を残響効果処理
部６２に出力する。なお、この残響効果パラメータ（Ｅ
ＦＴＰ）は、残響効果処理部６２における遅延回路の遅
延時間や乗算器の乗算係数などであり、この残響効果パ
ラメータ（ＥＦＴＰ）によって残響信号の特性が設定さ
れる。When the key-on signal (KON) is detected when the pedal depression of the operator 2 is detected according to the pedal signal (PDL), the reverberation parameter generation section 72 generates a parameter based on the reverberation signal setting data (REVP). The generated reverberation effect parameter (EFTP) is output to the reverberation effect processing section 62. Note that this reverberation effect parameter (E
FTP) is the delay time of the delay circuit in the reverberation effect processing section 62, the multiplication coefficient of the multiplier, etc., and the characteristics of the reverberation signal are set by this reverberation effect parameter (EFTP).
【００２２】エンベロープジェネレータ（ＥＧ）７３は
、例えば特公昭５８−９９５８号広報に開示されている
と同様な公知のエンベロープ発生器で構成されており、
エンベロープ設定データ（ＥＧＰ）やペダル信号（ＰＤ
Ｌ）で検出されるペダルの踏込み量に基づいて時間変化
信号（Ｅ）を生成する。この時間変化信号（Ｅ）は、キ
ーオン信号（ＫＯＮ）の検出によって発生され、時間変
化する乗算係数として乗算器７４Ｌ，７４Ｒに出力され
る。The envelope generator (EG) 73 is composed of a known envelope generator similar to that disclosed in, for example, Japanese Patent Publication No. 58-9958.
Envelope setting data (EGP) and pedal signal (PD)
A time-varying signal (E) is generated based on the amount of pedal depression detected in step L). This time-varying signal (E) is generated by detecting a key-on signal (KON), and is output to multipliers 74L and 74R as a time-varying multiplication coefficient.
【００２３】乗算器７４Ｌ，７４Ｒは、レベル・定位係
数発生部７１によって設定された乗算係数にエンベロー
プジェネレータ（ＥＧ）７３からの時間変化信号（Ｅ）
を乗算し、この乗算器７４Ｌ，７４Ｒからの各乗算値は
、音像効果付与部６の乗算器６３Ｌ，６３Ｒに乗算係数
として出力される。The multipliers 74L and 74R add the time-varying signal (E) from the envelope generator (EG) 73 to the multiplication coefficient set by the level/localization coefficient generator 71.
The multiplication values from the multipliers 74L and 74R are outputted to the multipliers 63L and 63R of the sound image effect applying section 6 as multiplication coefficients.
【００２４】図３は実施例における信号の時間変化と音
像の時間変化の一例を示す図であり、キーオン信号（Ｋ
ＯＮ）の立ち上がり（押鍵時）により楽音信号（ＷＡＶ
Ｅ）と時間変化信号（Ｅ）が発生される。楽音信号は緩
やかに減衰してキーオン信号の立ち下がり（離鍵時）に
よって急激に減衰し、時間変化信号（Ｅ）はキーオン信
号の立ち上がりから次第に増加してキーオン信号の立ち
下がりによって減衰する。これによって、ステレオ出力
される楽音の残響成分は押鍵時から次第に増加し、残響
成分の増加とともに音像がぼけた感じになる。したがっ
て、押鍵直後には略点状であった音像が次第に広がって
音響効果が変化する。FIG. 3 is a diagram showing an example of the time change of the signal and the time change of the sound image in the embodiment, and shows an example of the time change of the signal and the time change of the sound image.
ON) rises (when a key is pressed), a musical tone signal (WAV
E) and a time-varying signal (E) are generated. The musical tone signal gradually attenuates and then sharply attenuates as the key-on signal falls (when the key is released), and the time-varying signal (E) gradually increases from the rise of the key-on signal and attenuates as the key-on signal falls. As a result, the reverberation component of the musical sound that is output in stereo gradually increases from the time the key is pressed, and as the reverberation component increases, the sound image becomes blurred. Therefore, immediately after the key is pressed, the sound image, which was approximately dot-like, gradually expands, and the acoustic effect changes.
【００２５】このように、押鍵によって発音される楽音
の音像が押鍵時から順次広がるようになり、例えば、ピ
アノの共鳴効果と同様の響きとなって豊かな音響効果を
得ることができる。[0025] In this way, the sound image of the musical tone produced by pressing the key gradually expands from the time the key is pressed, producing a rich acoustic effect similar to the resonance effect of a piano, for example.
【００２６】上記の例では、押鍵時から音像が次第に広
がるようにしているが、例えば図４に示したように時間
変化信号（Ｅ）をキーオン信号の立ち上がりから次第に
減衰させ、押鍵時直後には広い音像にして、次第に点状
の音像に集束させるようにしても面白い音響効果が得ら
れる。In the above example, the sound image is made to gradually spread from the moment the key is pressed, but for example, as shown in FIG. Interesting acoustic effects can also be obtained by creating a wide sound image and gradually converging it into a point-like sound image.
【００２７】さらに、図５に示したように時間変化信号
（Ｅ）をキーオン信号の立ち上がりから波状に変化させ
て、音像の大きさを振動させながら広がるようにしても
よい。また、音像の大きさを振動させながら集束させる
ようにしてもよい。Furthermore, as shown in FIG. 5, the time-varying signal (E) may be changed in a wave-like manner from the rise of the key-on signal, so that the size of the sound image is oscillated and spread. Alternatively, the sound image may be focused while vibrating its size.
【００２８】上記の実施例では、楽音に残響音を付加す
ることにより音像を変化させるようにしているが、楽音
信号の遅延時間を変動させるコーラスや、位相を変動さ
せるフィズシフト等の他の効果によって音像を変化させ
るようにしてもよい。In the above embodiment, the sound image is changed by adding reverberation to the musical tone, but other effects such as chorus that changes the delay time of the musical sound signal, fizz shift that changes the phase, etc. The sound image may be changed by
【００２９】[0029]
【発明の効果】以上説明したように本発明の電子楽器に
よれば、押下鍵に対応する音高の楽音信号を生成して立
体音響で楽音を発生させるとともに、このとき形成され
る音像を押鍵情報の検出時から時間変化させるようにし
たので、押鍵によって発音される楽音による響きが変化
するようになり、例えばアコースティックのピアノのよ
うに、演奏に応じて響きが変化するなど豊かな音響効果
を得ることができる。As explained above, according to the electronic musical instrument of the present invention, a musical tone signal of a pitch corresponding to the pressed key is generated to generate a musical tone with stereophonic sound, and the sound image formed at this time is pressed. Since the key information is changed over time from when it is detected, the reverberations of musical tones produced by key presses change, creating rich acoustics, such as the reverberations changing according to the performance, like on an acoustic piano. effect can be obtained.
【図１】本発明による電子楽器の一実施例を示すブロッ
ク図である。FIG. 1 is a block diagram showing an embodiment of an electronic musical instrument according to the present invention.
【図２】本発明の実施例における音像効果付与部と効果
制御部のブロック図である。FIG. 2 is a block diagram of a sound image effect applying section and an effect control section in an embodiment of the present invention.
【図３】本発明の実施例における信号の時間変化と音像
の時間変化の一例を示す図である。FIG. 3 is a diagram showing an example of a temporal change in a signal and a temporal change in a sound image in an embodiment of the present invention.
【図４】本発明の実施例における信号の時間変化と音像
の時間変化の第２の例を示す図である。FIG. 4 is a diagram showing a second example of a temporal change in a signal and a temporal change in a sound image in the embodiment of the present invention.
【図５】本発明の実施例における信号の時間変化と音像
の時間変化の第３の例を示す図である。FIG. 5 is a diagram showing a third example of a temporal change in a signal and a temporal change in a sound image in the embodiment of the present invention.
１…鍵盤、２…操作子、３…操作検出部、４…設定部、
５…楽音波形発生部、６…音像効果付与部、７…効果制
御部、１０Ｌ，１０Ｒ…スピーカ。1...Keyboard, 2...Operator, 3...Operation detection section, 4...Setting section,
5...Musical sound waveform generating section, 6...Sound image effect applying section, 7...Effect control section, 10L, 10R...Speaker.
Claims (1)
対応する音高の楽音信号を生成し、複数の出力装置によ
る立体音響で楽音を発生するようにした電子楽器におい
て、前記楽音信号を加工することにより前記出力装置で
形成される音像を変化させる音像効果付与手段と、該音
像効果付与手段で楽音信号を変換する際の変換情報を時
間変化させる効果制御手段とを備え、上記効果制御手段
により、前記押鍵情報の検出時から前記楽音の音像を時
間変化させるようにしたことを特徴とする電子楽器。1. An electronic musical instrument that detects key press information on a keyboard section, generates a musical tone signal of a pitch corresponding to the pressed key, and generates a musical tone with stereophonic sound from a plurality of output devices, wherein the musical tone A sound image effect applying means for changing a sound image formed by the output device by processing a signal, and an effect control means for changing conversion information over time when converting a musical sound signal by the sound image effect applying means, An electronic musical instrument characterized in that an effect control means changes the sound image of the musical tone over time from the time when the key press information is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3066651A JP2990829B2 (en) | 1991-03-29 | 1991-03-29 | Effect giving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3066651A JP2990829B2 (en) | 1991-03-29 | 1991-03-29 | Effect giving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04301688A true JPH04301688A (en) | 1992-10-26 |
| JP2990829B2 JP2990829B2 (en) | 1999-12-13 |
Family
ID=13322020
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3066651A Expired - Fee Related JP2990829B2 (en) | 1991-03-29 | 1991-03-29 | Effect giving device |
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| Country | Link |
|---|---|
| JP (1) | JP2990829B2 (en) |
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| US9431020B2 (en) | 2001-11-29 | 2016-08-30 | Dolby International Ab | Methods for improving high frequency reconstruction |
| US9542950B2 (en) | 2002-09-18 | 2017-01-10 | Dolby International Ab | Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
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| US9799341B2 (en) | 2001-07-10 | 2017-10-24 | Dolby International Ab | Efficient and scalable parametric stereo coding for low bitrate applications |
| US8059826B2 (en) | 2001-07-10 | 2011-11-15 | Coding Technologies Ab | Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
| US8073144B2 (en) | 2001-07-10 | 2011-12-06 | Coding Technologies Ab | Stereo balance interpolation |
| US8081763B2 (en) | 2001-07-10 | 2011-12-20 | Coding Technologies Ab | Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
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