Damp control in an electronic musical

Details Damp control in an electronic musical Damp control in an electronic musical

1991-09-04

1993-12-14

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84633, 84656, 84DIG2, G10H 1057, G10H 122, G10H 146

Patent

active

052704785

ABSTRACT:
When a new tone is to be assigned to a certain channel, an amplitude level of a preceding tone signal which is being produced in this channel is detected and a damp rate is determined on the basis of the detected amplitude level. Tone volume of the preceding tone signal is rapidly attenuated in accordance with the damp rate thus determined and, thereafter, generation of a new tone signal is started. The damp rate thereby is variably controlled in accordance with the magnitude of tone volume level of the preceding tone signal during a damp control and both optimum prevention of a click noise and a very quick rapid attenuation control corresponding to the tone volume level can be realized. The invention is applicable not only to a damp control of tone volume of a tone but also to a damp control of an envelope shape signal used for other control purposes.

REFERENCES:
patent: 4928569 (1990-05-01), Kudo et al.
patent: 5074185 (1991-12-01), Nishikawa et al.

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