发明名称 |
Electronic musical instrument with glide |
摘要 |
In a digital type electronic musical instrument, a glide effect is produced by digitally frequency-modulating the frequency of a musical tone in such a manner that the frequency changes quickly and smoothly. Glide information used for effecting this frequency-modulation is produced on the basis of a glide code obtained by counting a clock pulse. The glide information which changes its contents uniformly is multiplied with the basic frequency information to effect the frequency-modulation. The glide effect can be controlled for each individual keyboard. According to an embodiment of the invention, the frequency-modulation is applied to an attack portion of a musical tone only and sustain and decay portions of the musical tone are reproduced with a normal frequency so that the musical tone will be provided with a crisp, vivid musical effect.
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申请公布号 |
US4122743(A) |
申请公布日期 |
1978.10.31 |
申请号 |
US19770823236 |
申请日期 |
1977.08.09 |
申请人 |
NIPPON GAKKI SEIZO KABUSHIKI KAISHA |
发明人 |
TOMISAWA, NORIO;UCHIYAMA, YASUJI;OKUMURA, TAKATOSHI;TAKEDA, TOSHIO |
分类号 |
G10H1/053;G10H7/04;(IPC1-7):G10H1/02 |
主分类号 |
G10H1/053 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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