Dây 7G

Description

Sound create use FM synthesis use C program. Use expf( -4.0*time ) envelop. Algorithm 0 of YM2515 chip (not use chip, only follow its algorithm in C program) • no feedback • linear change ampl (4 Hz or 0,25 s) • ampl_m1 = 216 --> ∆130 • ampl_m2 = 160 --> ∆23 • ampl_c1 = 288 --> ∆109 • ampl_c2 = 96 --> ∆13 • freq_m1 = 628608*4.0 • freq_m2 = 52384*4.0 • freq_c1 = 523840*4.0 • freq_c2 = 104768*4.0