MUSICAL TONE CONTROLLER OF ELECTRONIC MUSICAL INSTRUMENT HAVING EXPANSION FEELING REPRODUCING FUNCTION

摘要

PURPOSE: To obtain the natural expansion feeling like an acoustic musical instrument by controlling envelops by left and right respective frequency bands. ;CONSTITUTION: Left and right envelop generators 133L, 133R read out corresponding envelops from envelop waveform memories according to each information to generate outputs EhL, EmL, EIL and EhR, EmR, and transmits them respectively to multiplters. Waveform data read out from respective waveform memories 132h, 132m, 1321 and envelop data generated from respective envelop generators are synthesized at every channel in multipliers 134L, 134R, 135L, 135R, 136L, 136R by left and right respective frequency bands to be given by the expasion feeling while being added by envelops. Moreover, outputs of respective frequnecy bands are multiplied at every left and right channel in mulipliers 137L, 137R to become sounds of left and right channels.;COPYRIGHT: (C)1996,JPO