Being the musical tone synthesizer unit which the time gives fluctuation to pitch of the musical tone

摘要

PROBLEM TO BE SOLVED: To provide a musical sound synthesizer realizing plural modes of time fluctuation of a musical sound of vibrato performance, etc., in a natural stringed instrument. SOLUTION: A vibrato depth envelope generator 2, a vibrato speed envelope generator 3 and a press string force envelope generator 4 are started by key on information(KON), and are controlled by touch information (TOUCH). A frequency of a second low frequency signal generation part 7 becomes double of the frequency of a first low frequency signal generation part 6. An output of a multiplier 10 becomes a pitch controlling low frequency signal generation part output (P LFO). An adder 13 selects the input of the multi-plier 11 at the time of vibrato performance of slant operation, and selects the input of the multiplier 12 at the time of vibrato performance of upright operation to become an absorption controlling low frequency signal generation part output (ABSP LFO).