static L<IntRange> audio_streaksUsingBand_v1(BWImage img, IntRange band, O... _) {
  BWImage bandImage = clipBWImage(img, 0, band.start, img.getWidth(), band.end);
  BWImage img2 = bwAutoContrast(squishTo1Pixel(bandImage));
  optOutParam(_, processedImage := img2);
  L<IntRange> streaks = findBrightHorizontalStreaks(img2, 0.3f);
  ret joinIntRangesWithDistanceLessThan(streaks, 10);
}