sclass Audio_TwoWordAnalyzer1 {
  static int baseSize = 1024;
  
  S word1, word2;
  Rect rect; // in baseSize*baseSize
  float threshold;
  
  S analyze(BWImage img) {
    Rect r = rescaleRect(rect, baseSize, baseSize, img.getWidth(), img.getHeight());
    double b = clipBWImage(img, r).averageBrightness();
    //print(r + " => " + b);
    ret b >= threshold ? word1 : word2;
  }
}