Electronic musical instrument capable of controlling tone on the basis of detection of key operating style
First Claim
1. An electronic musical instrument comprising:
- a plurality of keys moveably supported by a support member;
tone generation means for generating a tone corresponding to an operated one of said keys;
detection means for generating a detection signal indicating varying positions of said operated key as said operated key moves relative to said support member;
performance style determination means for determining a key operating style of said operated key by analyzing a degree of nonlinearity of time varying values of said detection signal; and
tone control means for controlling said tone generation means in accordance with said key operating style determined by said performance style determination means.
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Accused Products
Abstract
A detector is provided which generates detection signal that represents a value varying in response to the movement of a key operated on a keyboard. The key operating style employed for the operated key is reflected in subtle, dynamic action occurring in connection with the operated key during depression of the key. For instance, if the key operating style for the operated key has more staccato factor or characteristic, then the action of the operated key will present nonlinear characteristics relatively remarkably. Thus, the key operating style for the operated key can be determined on the basis of time-varying values of the detection signal, and by controlling tone depending on the determined key operating style, it is possible to achieve good-quality tone control, well reflecting subtle differences in key operating styles such as staccato, tenuto and the like, which is difficult to achieve with the conventional touch control techniques.
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Citations
29 Claims
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1. An electronic musical instrument comprising:
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a plurality of keys moveably supported by a support member; tone generation means for generating a tone corresponding to an operated one of said keys; detection means for generating a detection signal indicating varying positions of said operated key as said operated key moves relative to said support member; performance style determination means for determining a key operating style of said operated key by analyzing a degree of nonlinearity of time varying values of said detection signal; and tone control means for controlling said tone generation means in accordance with said key operating style determined by said performance style determination means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An electronic musical instrument comprising:
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a plurality of keys pivotally supported by a support member; tone generation means for generating a tone in response to operation of one of said keys; a stroke sensor disposed relative to said operated key for detecting a position of said operated key as said operated key pivots relative to said support member; performance style determination means for determining a degree of non-linearity in variations of said position of said operated key over time as said operated key is operated and determining a key operating style on the basis of said degree of nonlinearity; and tone control means for controlling said tone generation means in accordance with said operating style determined by said performance style determination means.
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16. An electronic musical instrument comprising:
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a keyboard including a plurality of keys; tone generation means for generating a tone corresponding to an operated one of said keys; first detection means for detecting a velocity of said operated key; second detection means for generating a detection signal indicating varying positions of said operated key over time as said key is operated; performance style determination means for determining a key operating style of said operated key on the basis of a degree of nonlinearity of said plurality of positions over time; and tone control means for controlling said tone generation means in accordance with said key operating style determined by said performance style determination means and said velocity determined by said first detection means. - View Dependent Claims (17, 18)
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19. An electronic musical instrument comprising:
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a keyboard including a plurality of keys; tone generation means for generating a tone corresponding to an operated one of said keys; touch detection means for determining varying positions of said operated key as said operated key is operated; performance style analyzation means for determining a key operating style of said operated key on the basis of a degree of nonlinearity of said plurality of positions detected by said detection means; and tone control means for controlling said tone generation means in accordance with said key operating style determined by said performance style analyzation means.
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20. An electronic musical instrument comprising:
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a keyboard including a support member, a plurality of keys pivotally supported by said support member, and a plurality of mass bodies corresponding to said keys, each of said mass bodies being displaced relative to said support member in response to movement of a corresponding key; tone generation means for generating a tone corresponding to a key operated on said keyboard; touch detection means for detecting a plurality of positions relative to said support member of a mass body corresponding to an operated key; performance style analyzation means for determining a key operating style of said operated key on the basis of said plurality of positions detected by said touch detection means; and tone control means for controlling said tone generation means in accordance with said key operating style determined by said performance style analyzation means. - View Dependent Claims (21, 22, 23)
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24. An electronic musical instrument comprising:
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a keyboard including a plurality of keys; tone generation means for generating a tone corresponding to an operated key; touch detection means for outputting a plurality of sequential information indicative of a touch applied to said operated key at predetermined intervals; performance style determination means for detecting a maximum value of differential values of said touch information sequentially output from said touch detection means, and determining a key operating style of said operated key on the basis of said detected maximum value; and tone control means for controlling said tone generation means in accordance with said key operating style determined by said performance style determination means. - View Dependent Claims (25)
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26. An electronic musical instrument comprising:
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a keyboard including a plurality of keys; tone generation means for generating a tone corresponding to an operated key; touch detection means for outputting a plurality of sequential information indicative of a touch applied to said operated key at predetermined intervals; means for generating velocity information indicative of a a velocity of said operated key; performance style analyzation means for determining a key operating style of said operated key on the basis of said touch information output from said touch detection means at a variable number of said predetermined intervals; active control means for, in response to said velocity information, controlling said variable number of said predetermined intervals used by said performance style analyzation means to determine said key operating style of said operated key; and tone control means for controlling said tone generation means in accordance with said key operating style determined by said performance style analyzation means. - View Dependent Claims (27)
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28. An electronic musical instrument comprising:
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a keyboard including a plurality of keys; tone generation means for generating a tone corresponding to an operated one of said keys; touch detection means for detecting a touch applied to said operated key and for outputting touch information indicative of said detected touch; performance style determination means for, on the basis of said touch information output from said touch detection means, generating differential velocity data indicative of a plurality of velocities at predetermined time intervals of said key as said key is operated, and determining a key operating style for said operated key on the basis of an integrated value of said differential velocity data; and tone control means for controlling said tone generation means in accordance with said operating style determined by said performance style determination means. - View Dependent Claims (29)
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Specification