static L<IntRange> markerIntRangesForWAV(File f, BWImage freqImage) {
  ret markerIntRangesForWAV(f);
}

static L<IntRange> markerIntRangesForWAV(File f) {  
  Clip clip = spectro_clipFromFile(f);
  L<Int> intMarkers = sorted(allToInt(audioFileFloatMarkers(f)));
  
  // odd number of markers => clip to end
  if (oddLength(intMarkers)) intMarkers.add(clip.getFrameCount());
  
  ret intsToIntRanges(intMarkers);
}