Spectrogram Crossword Puzzle

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