Dananananananananananananananana, BATMAN!!!!!!

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Across
  1. 6. a woodwind instrument that sends out sounds through it's
  2. 7. a big room
  3. 9. a device used to make small voices sound larger,especially
  4. 10. a large-funnel shaped device used to make the voice sound
  5. 12. represent sounds
  6. 13. the sounds that letters make and the letters that are used to
Down
  1. 1. difficulty producing speech sounds
  2. 2. body
  3. 3. harsh sounds
  4. 4. a device used to play the sounds of music as written on
  5. 5. the study of speech sounds in language
  6. 8. by directing the sound waves straight out to listeners
  7. 11. having a nice sound