scope 128 b trig
bipolar audio rate signal oscilloscope (time domain), showing 128 consecutive samples after the signal becomes positive.
Inlets
frac32buffer.bipolar input
bool32 hold
Outlets
None
Displays
int8array128.vbar scope
Declaration
int8_t t[128];
int index;
int32_t pval;
Init
int i;
for (i = 0; i < 128; i++)
t[i] = 0;
index = 0;
pval = 0;
Control Rate
int i;
if (index < 0) {
for (i = 0; i < 16; i++) {
int32_t val = (inlet_in[i]) > (1 << 19);
if (val && (!pval)) {
index = 0;
break;
}
pval = val;
}
if (index == 0) {
for (; i < 16; i++) {
t[index++] = (uint8_t)(inlet_in[i] >> 21);
}
}
} else {
for (i = 0; i < 16; i++) {
if (index == 128) {
index = -1;
break;
}
t[index++] = (uint8_t)(inlet_in[i] >> 21);
}
if ((index == -1) && (!inlet_hold)) {
for (i = 0; i < 128; i++)
disp_scope[i] = t[i];
pval = (inlet_in[BUFSIZE - 1]) > (1 << 19);
}
}