uint32_t osc_p;
static const int blepvoices = 4;
const int16_t *oscp[blepvoices];
int16_t amp[blepvoices];
uint32_t nextvoice;

int j;
for (j = 0; j < blepvoices; j++) {
  oscp[j] = &blt[BLEPSIZE - 1];
  amp[j] = 0;
}
nextvoice = 0;

if (inlet_active > 0) {
  uint32_t freq;
  MTOFEXTENDED(param_pitch + inlet_pitch, freq);
  int j;
  const int16_t *lastblep = &blt[BLEPSIZE - 1];
  for (j = 0; j < BUFSIZE; j++) {
    int i;
    uint32_t p;
    p = osc_p;
    int32_t p3 = p - 2 * freq;
    int32_t tri;
    if (p3 > 0) {
      tri = ((1 << 30) - (p3)) >> 4;
    } else {
      tri = (p3 + (1 << 30)) >> 4;
    }
    osc_p = p + freq;
    if ((((int32_t)osc_p) > 0) ^ (((int32_t)p) > 0)) { // dispatch
      if ((freq >> 6) > 0) {
        nextvoice = (nextvoice + 1) & (blepvoices - 1);
        int32_t x = (osc_p & 0x7FFFFFFF) / (((uint32_t)freq) >> 6);
        oscp[nextvoice] = &blt[x];
        amp[nextvoice] = (((int32_t)osc_p) < 0) ? freq >> 16 : -(freq >> 16);
      }
    }
    int32_t sum = 0;
    for (i = 0; i < blepvoices; i++) { // sample
      const int16_t *t = oscp[i];
      sum += (*t) * amp[i];
      t += 64;
      if (t >= lastblep)
        t = lastblep;
      oscp[i] = t;
    }
    outlet_wave[j] = tri + (sum >> 3);
  }
}

if (inlet_active == 0) {
  outlet_wave = 0;
}