sclass VAD_1 extends F1<BWImage, Bool> {
  int streakLength;
  float threshold;
  IntRange band;
  
  public Bool get(BWImage img) {
    ret hasIntRangesLongerThan(streakLength, audio_streaksUsingBand_v1(img,
      band, +threshold));
  }
  
  toString { ret struct(this); }
}