static short[] convertSampleRate_stereoShortArray_simple(short[] data, double oldSampleRate, double newSampleRate) {
  double ratio = doubleRatio(newSampleRate, oldSampleRate);
  if (ratio == 1) ret data;
  int l = l(data)/2, l2 = iround(l(data)/2*ratio);
  short[] data2 = new[l2*2];
  double j = 0, step = 1/ratio;
  for i to l2: {
    int idxJ = min(ifloor(j), l-1)*2;
    data2[i] = data[idxJ];
    data2[i++] = data[idxJ+1];
    j += step;
  }
  ret data2;
}

Began life as a copy of #1026902