static short[] normalizeShortArray(short[] l) {
  int max = min(32767, absShortMax(l));
  if (max == 0 || max == 32767) ret l;
  int n = l(l);
  short[] l2 = new[n];
  double factor = 32767.0/max;
  for i to n:
    l2[i] = roundToShort(l[i]*factor);
  ret l2;
}