Spectrogram Crossword Puzzle

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Across
  1. 4. Spectrogram 10
  2. 8. Spectrogram 4
  3. 9. Spectrogram 3
  4. 12. Spectrogram 5
  5. 13. Spectrogram 6
  6. 14. Spectrogram 18
  7. 15. Spectrogram 8
  8. 16. Spectrogram 2
  9. 17. Spectrogram 13
  10. 19. Spectrogram 7
  11. 20. Spectrogram 9
Down
  1. 1. Spectrogram 15
  2. 2. Spectrogram 17
  3. 3. Spectrogram 16
  4. 5. Spectrogram 20
  5. 6. Spectrogram 19
  6. 7. Spectrogram 14
  7. 10. Spectrogram 11
  8. 11. Spectrogram 12
  9. 18. Spectrogram 1