(19)
(11) EP 0 280 293 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.06.1990 Bulletin 1990/23

(43) Date of publication A2:
31.08.1988 Bulletin 1988/35

(21) Application number: 88102806.2

(22) Date of filing: 25.02.1988
(51) International Patent Classification (IPC)4: G10H 1/057, G10H 1/08, G10H 7/00
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 25.02.1987 JP 40455/87
25.02.1987 JP 25501/87 U

(71) Applicant: CASIO COMPUTER COMPANY LIMITED
Shinjuku-ku Tokyo 160 (JP)

(72) Inventors:
  • Tsutsumi, Kenichi Pat.Dept.Dev.Div. Hamura R&D Ctr
    Hamura-machi Nishitama-gun Tokyo 190 (JP)
  • Yoshino, Jun Pat. Dept. Dev. Div. Hamura R&D Ctr.
    Hamura-machi Nishitama-gun Tokyo 190 (JP)

(74) Representative: KUHNEN, WACKER & PARTNER 
Alois-Steinecker-Strasse 22
85354 Freising
85354 Freising (DE)


(56) References cited: : 
   
       


    (54) Musical tone generating apparatus for synthesizing musical tone signal by combining component wave signals


    (57) A global envelope is input by a user and stored in a global envelope memory (3). At the respective envelope-controlled sine wave generators (15-1 - 15-n), are generated envelope functions of the respective orders by modifying the input global envelope. The envelopes of component wave signals of a plurality of orders are independently controlled by the envelope functions having the respective orders in the genera­tors (15-1 - 15-n), and a musical tone signal is synthe­sized by combining the envelope-controlled component wave signals.







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