JP2016018101A - Sound source device - Google Patents

Sound source device Download PDF

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JP2016018101A
JP2016018101A JP2014141289A JP2014141289A JP2016018101A JP 2016018101 A JP2016018101 A JP 2016018101A JP 2014141289 A JP2014141289 A JP 2014141289A JP 2014141289 A JP2014141289 A JP 2014141289A JP 2016018101 A JP2016018101 A JP 2016018101A
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sound
waveform data
waveform
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mixing
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JP6422690B2 (en
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藤山　浩一
Koichi Fujiyama
浩一 藤山
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Korg Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a sound source device capable of producing a natural sound even by a small recording part.SOLUTION: A sound source device includes: a recording part for recording a plurality of waveform data having different tone colors; a plurality of oscillator parts for generating a basic sound for each instruction to produce a sound; and a mixing part for synthesizing the basic sounds to generate a sound following an input. The oscillator part has: a waveform reading part; a mixture control part, a delay part, a waveform mixing part and a waveform processing part. The waveform reading part reads one waveform data from the recording part. The mixture control part determines a delay amount and a mixture ratio by a predetermined method for each sound production. The delay part generates delay waveform data delayed only by the delay amount determined by the mixture control part from the waveform data. The waveform mixing part mixes the waveform data with the delay waveform data in accordance with a mixture ratio determined by the mixture control part to generate the mixed waveform data. The waveform processing part performs predetermined processing to the mixed waveform data to generate the basic sound.SELECTED DRAWING: Figure 1

Description

本発明は、電子楽器に用いる音源装置に関する。   The present invention relates to a sound source device used for an electronic musical instrument.

弦楽器や打楽器などを演奏する場合、音程や強弱を同じ条件で発音しても、発音ごとにわずかに異なる音になる。特に、余韻が残っている弦や打面に対して発音を行うと、与える力が同じであっても、特定の倍音（基本周波数の整数倍の周波数の音）が打ち消されたり、強調されたりすることがある。そして、このように発音ごとに微妙に異なる音が生成されることで、視聴者は自然な音と感じる。言い換えると、いつも厳密に同じ音が聞こえたのでは不自然な音と感じる。   When playing stringed or percussion instruments, even if the pitch and strength are pronounced under the same conditions, the sound will be slightly different for each pronunciation. In particular, when a note is played on a string or striking surface with a lingering sound, a specific harmonic (a sound with an integer multiple of the fundamental frequency) is canceled or emphasized even if the applied force is the same. There are things to do. And since a slightly different sound is generated for each pronunciation in this way, the viewer feels a natural sound. In other words, if you always hear exactly the same sound, it feels unnatural.

そこで、電子楽器から自然な音を発音させる従来技術として、特許文献１が知られている。特許文献１の技術は、所定の音色に対して複数の相違なる波形データを記憶しておき、所定の音色に対する発音ごとに異なる波形データを使用することで自然な音を発音する。   Therefore, Patent Document 1 is known as a conventional technique for generating a natural sound from an electronic musical instrument. The technique of Patent Document 1 stores a plurality of different waveform data for a predetermined tone color, and generates a natural sound by using different waveform data for each sound generation for the predetermined tone color.

特開２００６−９１４６０号公報JP 2006-91460 A

しかしながら、従来技術は、所定の音色に対して複数の相違なる波形データを記憶しておく必要があるので、大規模なメモリが必要という課題がある。本発明はこのような課題に鑑みてなされたものであり、小さい記録部でも自然な音を発音できる音源装置を提供することを目的とする。   However, the conventional technique has a problem that a large-scale memory is required because it is necessary to store a plurality of different waveform data for a predetermined tone color. The present invention has been made in view of such a problem, and an object of the present invention is to provide a sound source device capable of generating a natural sound even with a small recording unit.

本発明の音源装置は、発音の指示が入力されると、入力に従って音を生成する。本発明の音源装置は、音色の異なる複数の波形データを記録した記録部と、発音の指示ごとに基本音を生成する複数のオシレータ部と、基本音を合成して入力に従った音を生成するミックス部とを備える。オシレータ部は、波形読み出し部、混合制御部、遅延部、波形混合部、波形加工部を有する。波形読み出し部は、記録部から１つの波形データを読み出す。混合制御部は、遅延量と混合比を、発音ごとに決める。遅延部は、波形データから混合制御部が決めた遅延量だけ遅延させた遅延波形データを生成する。波形混合部は、波形データと遅延波形データとを混合制御部が決めた混合比に従って混合し、混合波形データを生成する。波形加工部は、混合波形データに所定の加工を施し、基本音を生成する。   When a sound generation instruction is input, the sound source device of the present invention generates a sound according to the input. The sound source device of the present invention generates a sound according to an input by synthesizing a basic sound, a recording unit that records a plurality of waveform data of different timbres, a plurality of oscillator units that generate a basic sound for each instruction of pronunciation And a mixing section. The oscillator unit includes a waveform reading unit, a mixing control unit, a delay unit, a waveform mixing unit, and a waveform processing unit. The waveform reading unit reads one waveform data from the recording unit. The mixing control unit determines the delay amount and the mixing ratio for each sound generation. The delay unit generates delay waveform data delayed from the waveform data by a delay amount determined by the mixing control unit. The waveform mixing unit mixes the waveform data and the delayed waveform data according to the mixing ratio determined by the mixing control unit, and generates mixed waveform data. The waveform processing unit performs predetermined processing on the mixed waveform data to generate a basic sound.

本発明の音源装置によれば、発音ごとの自然な差を遅延量と混合比を発音ごとに変化させることで得ているので、同一の音色に対して複数の波形データを記録しておく必要が無い。したがって、本発明の音源装置は、従来よりも小さい記録部で、自然な音を発音できる。   According to the sound source device of the present invention, since a natural difference for each pronunciation is obtained by changing the delay amount and the mixing ratio for each pronunciation, it is necessary to record a plurality of waveform data for the same tone color. There is no. Therefore, the sound source device of the present invention can produce a natural sound with a recording unit smaller than the conventional one.

本発明の音源装置の機能構成例を示す図。The figure which shows the function structural example of the sound source device of this invention. 遅延部１２０と波形混合部１３０で構成されるフィルタの周波数特性を示す図。The figure which shows the frequency characteristic of the filter comprised by the delay part 120 and the waveform mixing part 130. 倍音に対する遅延部１２０と波形混合部１３０の影響を示す図であり、遅延時間を基本周波数の周期とし、混合比αを０．９とした例を示す図。It is a figure which shows the influence of the delay part 120 and the waveform mixing part 130 with respect to a harmonic, and is a figure which shows the example which made delay time the period of a fundamental frequency, and made mixing ratio (alpha) 0.9. 倍音に対する遅延部１２０と波形混合部１３０の影響を示す図であり、遅延時間を基本周波数の周期とし、混合比αを０．１２２とした例を示す図。It is a figure which shows the influence of the delay part 120 and the waveform mixing part 130 with respect to a harmonic, and is a figure which shows the example which made the delay time the period of a fundamental frequency, and made the mixing ratio (alpha) 0.122. 倍音に対する遅延部１２０と波形混合部１３０の影響を示す図であり、遅延時間を基本周波数の周期の３／４とし、混合比αを０．９とした例を示す図。It is a figure which shows the influence of the delay part 120 and the waveform mixing part 130 with respect to a harmonic, and is a figure which shows the example which made delay time 3/4 of the period of a fundamental frequency, and mix ratio (alpha) 0.9. 倍音に対する遅延部１２０と波形混合部１３０の影響を示す図であり、遅延時間を基本周波数の周期の１／２とし、混合比αを０．９とした例を示す図。It is a figure which shows the influence of the delay part 120 and the waveform mixing part 130 with respect to a harmonic, and is a figure which shows the example which made delay time 1/2 and the mixing ratio (alpha) 0.9 of the fundamental frequency. アコースティックギターの５弦を開放した状態での音の周波数特性を示す図。The figure which shows the frequency characteristic of the sound in the state which opened the 5th string of the acoustic guitar. 、図７が示した音に対する遅延部１２０と波形混合部１３０の影響を示す図であって、遅延時間を基本周波数の周期とし、混合比αを０．５とした例を示す図。FIG. 8 is a diagram showing the influence of the delay unit 120 and the waveform mixing unit 130 on the sound shown in FIG. 7 and showing an example in which the delay time is the period of the fundamental frequency and the mixing ratio α is 0.5. 図７が示した音に対する遅延部１２０と波形混合部１３０の影響を示す図であって、遅延時間を基本周波数の周期の３／４とし、混合比αを０．５とした例を示す図。FIG. 8 is a diagram showing the influence of the delay unit 120 and the waveform mixing unit 130 on the sound shown in FIG. 7 and showing an example in which the delay time is 3/4 of the period of the fundamental frequency and the mixing ratio α is 0.5. . 図７が示した音に対する遅延部１２０と波形混合部１３０の影響を示す図であって、遅延時間を基本周波数の周期の１／２とし、混合比αを０．５とした例を示す図。FIG. 8 is a diagram showing the influence of the delay unit 120 and the waveform mixing unit 130 on the sound shown in FIG. 7 and showing an example in which the delay time is ½ of the period of the fundamental frequency and the mixing ratio α is 0.5. .

以下、本発明の実施の形態について、詳細に説明する。なお、同じ機能を有する構成部には同じ番号を付し、重複説明を省略する。   Hereinafter, embodiments of the present invention will be described in detail. In addition, the same number is attached | subjected to the structure part which has the same function, and duplication description is abbreviate | omitted.

＜構成＞
図１に本発明の音源装置の機能構成例を示す。音源装置１０は、発音の指示が入力されると、入力に従って音を生成する。音源装置１０は、少なくとも記録部９００、Ｎ個（ただし、Ｎは２以上の整数）のオシレータ部１００−１，…，Ｎ、ミックス部２００を備える。さらに、発音指示部３００、増幅部７００、出力部８００も備えてもよいし、これらの構成部は音源装置１０の外部に配置されてもよい。 <Configuration>
FIG. 1 shows a functional configuration example of the sound source device of the present invention. When a sound generation instruction is input, the sound source device 10 generates a sound according to the input. The sound source device 10 includes at least a recording unit 900, N (where N is an integer of 2 or more) oscillator units 100-1,. Furthermore, a sound generation instruction unit 300, an amplification unit 700, and an output unit 800 may be provided, and these components may be arranged outside the sound source device 10.

発音指示部３００は、演奏者からの発音を指示する入力があると、オシレータ部１００−１，…，Ｎの１つまたは複数と、ミックス部２００に音の生成を指示する。記録部９００は、音色の異なる複数の波形データを記録する。オシレータ部１００−１，…，Ｎは、発音の指示ごとに基本音を生成する。ミックス部２００は、基本音を合成して音を生成する。増幅部７００が、ミックス部２００が出力した音を増幅し、出力部８００（例えば、スピーカ）が出力する。例えば、フルートのような単音楽器の音を発音する場合は、発音指示部３００は、１つのオシレータ部にフルートの音色の音の発音を指示すればよい。また、ギターのような複音楽器（和音を出せる楽器）の音を発音する場合は、発音指示部３００は、複数のオシレータ部（例えば、６個のオシレータ部）に、それぞれ１つの弦の音の発音を指示すればよい。ミックス部２００は、複数のオシレータ部が同時に発音したときに、それらの音を合成する。   The sound generation instructing unit 300 instructs the generation of sound to one or more of the oscillator units 100-1,... The recording unit 900 records a plurality of waveform data having different timbres. The oscillator units 100-1,..., N generate a basic sound for each sound generation instruction. The mixing unit 200 generates sound by synthesizing basic sounds. The amplification unit 700 amplifies the sound output from the mixing unit 200, and the output unit 800 (for example, a speaker) outputs the amplified sound. For example, when sounding a single musical instrument such as a flute, the sound generation instructing unit 300 may instruct the single oscillator unit to sound the sound of the flute tone. Also, when generating the sound of a multi-musical instrument such as a guitar (musical instrument capable of producing chords), the sound generation instructing unit 300 transmits a single string sound to each of a plurality of oscillator units (for example, six oscillator units). You only need to indicate pronunciation. The mix unit 200 synthesizes sounds when a plurality of oscillator units simultaneously generate sounds.

オシレータ部１００−ｎ（ただし、ｎは１以上Ｎ以下の整数）は、波形読み出し部１１０、混合制御部１５０、遅延部１２０、波形混合部１３０、波形加工部１４０を有する。波形読み出し部１１０は、記録部９００から１つの波形データを読み出す。混合制御部１５０は、遅延量と混合比を、波形の自然な相違が生まれる範囲で、発音ごとに決める。なお、１つの発音では遅延量と混合比は一定であり、発音の途中では変化させない。遅延部１２０は、波形データから混合制御部１５０が決めた遅延量だけ遅延させた遅延波形データを生成する。波形混合部１３０は、波形データと遅延波形データとを混合制御部１５０が決めた混合比に従って混合し、混合波形データを生成する。波形加工部１４０は、混合波形データに所定の加工を施し、基本音を生成する。「所定の加工」とは、ローパスフィルタの処理、ハイパスフィルタの処理、エンベローブの付加、音量調整などであるが、これらに限定されない。   The oscillator unit 100-n (where n is an integer from 1 to N) includes a waveform reading unit 110, a mixing control unit 150, a delay unit 120, a waveform mixing unit 130, and a waveform processing unit 140. The waveform reading unit 110 reads one waveform data from the recording unit 900. The mixing control unit 150 determines the delay amount and the mixing ratio for each sound generation within a range in which a natural difference in waveform is generated. Note that the delay amount and the mixing ratio are constant in one sound generation, and are not changed during the sound generation. The delay unit 120 generates delay waveform data delayed from the waveform data by the delay amount determined by the mixing control unit 150. The waveform mixing unit 130 mixes the waveform data and the delayed waveform data according to the mixing ratio determined by the mixing control unit 150 to generate mixed waveform data. The waveform processing unit 140 performs predetermined processing on the mixed waveform data to generate a basic sound. “Predetermined processing” includes low-pass filter processing, high-pass filter processing, envelope addition, volume adjustment, and the like, but is not limited thereto.

次に「波形の自然な相違が生まれる範囲」について説明する。発音する音の基本周波数の１周期分の範囲で遅延すれば、倍音（基本周波数の整数倍の周波数の音）の強弱を調整できる。ただし、遅延量を２０ｍ秒以上にすると、視聴者が２つの音と認識するようになるので、低い周波数の場合には１周期分の範囲での遅延は許容できない。よって、遅延量は、基本音の基本周波数の周期以下、かつ、２０ｍ秒以下の範囲で、ランダムに決めればよい。また、遅延波形データの混合比を大きくすると、倍音の強弱が変わり過ぎ、自然な相違の範囲を超え始める。視聴者が自然な音と感じるためには、例えば、混合比を、波形データの振幅に対する遅延波形データの振幅が、０以上   Next, the “range in which natural differences in waveforms are born” will be described. If the sound is delayed within the range of one period of the fundamental frequency of the sound to be generated, the strength of overtone (a sound having a frequency that is an integral multiple of the fundamental frequency) can be adjusted. However, if the delay amount is set to 20 milliseconds or more, the viewer recognizes two sounds, so that a delay in the range of one cycle cannot be allowed in the case of a low frequency. Therefore, the delay amount may be determined at random within a range of not more than the period of the fundamental frequency of the fundamental sound and not more than 20 milliseconds. Further, when the mixing ratio of the delayed waveform data is increased, the strength of overtones changes too much and starts to exceed the range of natural differences. In order for the viewer to feel a natural sound, for example, the mixing ratio is set so that the amplitude of the delayed waveform data with respect to the amplitude of the waveform data is 0 or more.


以下となる範囲で、ランダムに決めればよい。
What is necessary is just to determine at random in the range used as follows.

＜分析＞
図２に遅延部１２０と波形混合部１３０で構成されるフィルタの周波数特性を示す。図２は、遅延時間を周波数ｆ０の周期とし、波形データの振幅に対する遅延波形データの振幅である混合比αを１とした場合の周波数特性である。この場合、周波数ｆ０の整数倍の周波数では強め合い、その中間では弱め合うことが分かる。 <Analysis>
FIG. 2 shows the frequency characteristics of the filter composed of the delay unit 120 and the waveform mixing unit 130. FIG. 2 shows frequency characteristics when the delay time is the period of the frequency f 0 and the mixing ratio α, which is the amplitude of the delayed waveform data with respect to the amplitude of the waveform data, is 1. In this case, reinforce each other an integer multiple of the frequency of the frequency f 0, it is seen that weakened in the middle.

図３から６は、倍音に対する遅延部１２０と波形混合部１３０の影響を示す図である。横軸は、基本周波数の何倍の周波数かを示している。図３は、遅延時間を基本周波数の周期とし、混合比αを０．９とした例である。図４は、遅延時間を基本周波数の周期とし、混合比αを０．１２２とした例である。図５は、遅延時間を基本周波数の周期の３／４とし、混合比αを０．９とした例である。図６は、遅延時間を基本周波数の周期の１／２とし、混合比αを０．９とした例である。図３，４の違いから、混合比αを調整することで変化の程度を調整できることが分かる。また、図３，５，６の違いから、遅延量を調整することでどの倍音を強調し、どの倍音を弱めるのかを変えられることが分かる。   FIGS. 3 to 6 are diagrams illustrating the influence of the delay unit 120 and the waveform mixing unit 130 on overtones. The horizontal axis indicates how many times the fundamental frequency. FIG. 3 shows an example in which the delay time is the period of the fundamental frequency and the mixing ratio α is 0.9. FIG. 4 is an example in which the delay time is the period of the fundamental frequency and the mixing ratio α is 0.122. FIG. 5 is an example in which the delay time is 3/4 of the period of the fundamental frequency and the mixing ratio α is 0.9. FIG. 6 shows an example in which the delay time is ½ of the period of the fundamental frequency and the mixing ratio α is 0.9. 3 and 4, it can be seen that the degree of change can be adjusted by adjusting the mixing ratio α. Also, it can be seen from the differences between FIGS. 3, 5 and 6 that the harmonics to be emphasized and the harmonics to be weakened can be changed by adjusting the delay amount.

図７はアコースティックギターの５弦を開放した状態での音の周波数特性を示す図である。この音の基本周波数は１１０Ｈｚである。図８から１０は、図７が示した音に対する遅延部１２０と波形混合部１３０の影響を示す図である。図８は、遅延時間を基本周波数（１１０Ｈｚ）の周期とし、混合比αを０．５とした例である。図９は、遅延時間を基本周波数（１１０Ｈｚ）の周期の３／４とし、混合比αを０．５とした例である。図１０は、遅延時間を基本周波数（１１０Ｈｚ）の周期の１／２とし、混合比αを０．５とした例である。なお、例えば、混合比αを０．１２２にすれば、聴覚では自然に感じる相違が分かるが、周波数特性を示す図を比較しても目視では容易には違いは分からない。そこで、視聴者が自然に感じる混合比αはもっと小さいが、図８から１０では周波数特性の変化を示すために混合比αを０．５とした。図８のＡで示した範囲のピーク値、図９のＢで示した範囲のピーク値、図１０のＣで示した範囲のピーク値が、図７に示されたピーク値と比較して、大きく変化していることが分かる。これらの図から、波形データに遅延波形データを混合することによって、特に周波数の高い倍音で、強め合いや弱め合いの影響が出やすいことが分かる。したがって、音源装置１０であれば、発音ごとに遅延量と混合比を変化させるので、１つの音色の波形データから、自然な変化を有する波形データを生成できる。したがって、本発明の音源装置は、従来よりも小さい記録部で、自然な音を発音できる。   FIG. 7 is a diagram showing the frequency characteristics of the sound when the fifth string of the acoustic guitar is opened. The fundamental frequency of this sound is 110 Hz. 8 to 10 are diagrams showing the influence of the delay unit 120 and the waveform mixing unit 130 on the sound shown in FIG. FIG. 8 shows an example in which the delay time is the period of the fundamental frequency (110 Hz) and the mixing ratio α is 0.5. FIG. 9 shows an example in which the delay time is 3/4 of the period of the fundamental frequency (110 Hz) and the mixing ratio α is 0.5. FIG. 10 shows an example in which the delay time is ½ of the period of the fundamental frequency (110 Hz) and the mixing ratio α is 0.5. For example, if the mixing ratio α is set to 0.122, a difference that is naturally felt by hearing can be recognized, but even if the diagrams showing the frequency characteristics are compared, the difference cannot be easily recognized visually. Therefore, although the mixing ratio α that the viewer feels naturally is smaller, in FIGS. 8 to 10, the mixing ratio α is set to 0.5 in order to show the change in the frequency characteristics. The peak value in the range indicated by A in FIG. 8, the peak value in the range indicated by B in FIG. 9, and the peak value in the range indicated by C in FIG. 10 are compared with the peak value shown in FIG. It turns out that it has changed greatly. From these figures, it can be seen that mixing delay waveform data with waveform data tends to have an effect of strengthening or weakening, especially with harmonics having a high frequency. Therefore, since the delay amount and the mixing ratio are changed for each sound generation in the sound source device 10, waveform data having a natural change can be generated from the waveform data of one tone color. Therefore, the sound source device of the present invention can produce a natural sound with a recording unit smaller than the conventional one.

＜従来のフィルタとの違い＞
従来から、エコーを付加する場合などに遅延させた波形を合成するフィルタがあった。しかし、従来のフィルタは、図１のミックス部２００と増幅部７００の間に配置されている。つまり、基本周波数の高い音も低い音も同じ遅延量を与える処理であった。 <Differences from conventional filters>
Conventionally, there has been a filter for synthesizing a delayed waveform when an echo is added. However, the conventional filter is disposed between the mixing unit 200 and the amplification unit 700 of FIG. In other words, the processing for giving the same delay amount to the sound having a high fundamental frequency and the sound having a low fundamental frequency.

しかし、上述のように自然な波形の違いは、基本周波数の倍音の強弱によって与えられるので、ミックス部２００で合成された音に一律の遅延を与えたのでは、発音ごと（基本音ごと）の自然な波形の違いは得られない。   However, as described above, the natural waveform difference is given by the strength of the harmonic overtone of the fundamental frequency. Therefore, if a uniform delay is given to the sound synthesized by the mixing unit 200, it is different for each pronunciation (every fundamental sound). Natural waveform differences cannot be obtained.

本発明の音源装置は、発音ごとの自然な差を遅延量と混合比を発音ごと（基本音ごと）に変化させることで得ているので、同一の音色に対して複数の波形データを記録しておく必要が無い。   Since the sound source device of the present invention obtains a natural difference for each sound generation by changing the delay amount and the mixing ratio for each sound generation (for each basic sound), it records a plurality of waveform data for the same timbre. There is no need to keep it.

１０ 音源装置 １００ オシレータ部
１１０ 波形読み出し部 １２０ 遅延部
１３０ 波形混合部 １４０ 波形加工部
１５０ 混合制御部 ２００ ミックス部
３００ 発音指示部 ７００ 増幅部
８００ 出力部 ９００ 記録部
DESCRIPTION OF SYMBOLS 10 Sound source device 100 Oscillator part 110 Waveform reading part 120 Delay part 130 Waveform mixing part 140 Waveform processing part 150 Mixing control part 200 Mix part 300 Sound generation instruction part 700 Amplification part 800 Output part 900 Recording part

Claims (3)

発音の指示が入力されると、音を生成する音源装置であって、
音色の異なる複数の波形データを記録した記録部と、
発音の指示ごとに基本音を生成する複数のオシレータ部と、
前記基本音を合成して音を生成するミックス部と、
を備え、
前記オシレータ部は、
前記記録部から１つの波形データを読み出す波形読み出し部と、
遅延量と混合比を、発音ごとに決める混合制御部と、
前記波形データから前記混合制御部が決めた遅延量だけ遅延させた遅延波形データを生成する遅延部と、
前記波形データと前記遅延波形データとを前記混合制御部が決めた混合比に従って混合し、混合波形データを生成する波形混合部と、
前記混合波形データに所定の加工を施し、前記基本音を生成する波形加工部と、
を有する
ことを特徴とする音源装置。 When a pronunciation instruction is input, the sound generator generates sound,
A recording unit that records a plurality of waveform data of different timbres;
A plurality of oscillators that generate basic sounds for each pronunciation instruction;
A mixing unit that synthesizes the basic sound to generate a sound;
With
The oscillator unit is
A waveform reading unit for reading one waveform data from the recording unit;
A mixing control unit that determines the delay amount and mixing ratio for each sound generation;
A delay unit for generating delayed waveform data delayed from the waveform data by a delay amount determined by the mixing control unit;
A waveform mixing unit that mixes the waveform data and the delayed waveform data according to a mixing ratio determined by the mixing control unit, and generates mixed waveform data;
A predetermined processing is performed on the mixed waveform data, and a waveform processing unit that generates the basic sound;
A sound source device characterized by comprising: 請求項１記載の音源装置であって、
前記混合制御部は、
前記遅延時間を、前記基本音の基本周波数の周期以下、かつ、２０ｍ秒以下の範囲、
混合比を、波形データの振幅に対する遅延波形データの振幅が、０以上

以下となる範囲で決める
ことを特徴とする音源装置。 The sound source device according to claim 1,
The mixing control unit includes:
The delay time is within a range of not more than the period of the fundamental frequency of the fundamental sound and not more than 20 milliseconds,
The mixing ratio is set so that the amplitude of the delayed waveform data is 0 or more with respect to the amplitude of the waveform data.

A sound source device characterized by being determined within the following range. 請求項２記載の音源装置であって、
前記混合制御部は、遅延時間と混合比を、発音ごとにランダムに決める
ことを特徴とする音源装置。 The sound source device according to claim 2,
The sound source device, wherein the mixing control unit randomly determines a delay time and a mixing ratio for each sound generation.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08241083A (en) * 1995-03-06 1996-09-17 Matsushita Electric Ind Co Ltd Musical tone synthesizer
JPH1026988A (en) * 1996-07-11 1998-01-27 Matsushita Electric Ind Co Ltd Musical sound synthesizer
JP2011203583A (en) * 2010-03-26 2011-10-13 Yamaha Corp Musical sound generator and program

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08241083A (en) * 1995-03-06 1996-09-17 Matsushita Electric Ind Co Ltd Musical tone synthesizer
JPH1026988A (en) * 1996-07-11 1998-01-27 Matsushita Electric Ind Co Ltd Musical sound synthesizer
JP2011203583A (en) * 2010-03-26 2011-10-13 Yamaha Corp Musical sound generator and program

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