Trốn 4E

Description

Sound create use FM synthesis use C program. Use expf( -3.0*time ) envelop. Algorithm 3 of YM2515 chip (not use chip, only follow its algorithm in C program) • no feedback • linear change ampl (3 Hz or 0,33333 s) • ampl_m1 = 288 → ∆216 • ampl_m2 = 168 → ∆10 • ampl_c1 = 192 → ∆114 • ampl_c2 = 92 → ∆24 • freq_m1 = 2494080*1.33333 • freq_m2 = 83136*1.33333 • freq_c1 = 665600*1.33333 • freq_c2 = 83136*1.33333