(19)
(11) EP 0 322 871 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.12.1990 Bulletin 1990/49

(43) Date of publication A2:
05.07.1989 Bulletin 1989/27

(21) Application number: 88121738.4

(22) Date of filing: 27.12.1988
(51) International Patent Classification (IPC)4: G10K 15/02
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 28.12.1987 JP 335212/87

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

(72) Inventor:
  • Tajima, Youichiro c/o Pat. Dept., Developement Div
    Hamura-machi, Nishitama-gun,Tokyo 190-11 (JP)

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


(56) References cited: : 
   
       


    (54) Effect tone generating apparatus


    (57) An effect tone of an appropriate pattern such as the murmur of a brook or songs of birds is generated at an arbitrary timing with a simple operation of keyboard (11). Since the tone volume of an effect tone can be gradually increased or decreased by using fade in/ fade out key and the tone volume can be independently controlled in units of channels (15a, 15b) using a plurality of channels, the effect of the effect tones can be improved.







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