sbool audioSplit2_debug = true;
static int audioSplit2_threshold = 10;

static L<IntRange> audioSplit2(BWImage img) {
  ret audioSplit2(img, audioSplit2_threshold);
}

static L<IntRange> audioSplit2(BWImage img, int threshold) {
  ret intRangesLongerThan(threshold, audioSplit1(img));
}