ad_mod
Attack/decay envelope, linear attack, exponential decay with modulation
Inlets
bool32.rising trigger
frac32.bipolar attack time modulation
frac32.bipolar decay time modulation
Outlets
frac32.positive envelope output
Parameters
frac32.s.map.klineartime.exp a
frac32.s.map d
Declaration
int8_t stage;
int ntrig;
int32_t val;
Init
ntrig = 0;
val = 0;
Control Rate
if ((inlet_trig > 0) && !ntrig) {
ntrig = 1;
stage = 1;
} else if (!(inlet_trig > 0)) {
ntrig = 0;
}
if (stage == 0) {
val = ___SMMUL(val, param_d) << 1;
} else {
int32_t t;
MTOF(-param_a, t);
val = val + (t >> 3);
if (val < 0) {
val = 0x7FFFFFFF;
stage = 0;
}
}
outlet_env = val >> 4;