Supersonic

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Across
  1. 2. Unpleasant set of pitches
  2. 3. Pleasent set of pitches
  3. 5. A frequency shift that causes an object to have a higher pitch close to you, but a low pitch farther away
  4. 6. Studied sound production in musical instruments and the human voice in the 19th century
  5. 8. Consists of a thin disk that vibrates in response to sound waves and produces an electrical signal
  6. 9. A logarithmic scale that measures amplitudes
  7. 11. Converts sound energy into another form of energy
  8. 12. Depends primarily on the amplitude of the pressure wave
  9. 14. Higher frequencies on instruments
  10. 16. A resonating tube with both ends open to air
  11. 18. Unit of measurement for sound level
  12. 19. An organtic detector that recives pressure waves and converts them to electrical impulses
Down
  1. 1. Lowest frequency on an instrument
  2. 4. A resonating tube with one end closed to air
  3. 7. Produced by a vibrating object
  4. 10. Two membranes located in the throat
  5. 13. A pressure variation that is transmitted through matter
  6. 15. An oscillation of wave amplitude
  7. 17. Each one of these has a unique frequence of vibration