phonetics

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Across
  1. 3. Variations of phoneme
  2. 4. The author of "expiratory theory"
  3. 7. The oldest and most developed branch of phonetics
  4. 8. The allophones which do not undergo any distinguishable changes in speech
  5. 9. The author of "loudness theory"
Down
  1. 1. A minimal abstract linguistic unit
  2. 2. Branch of phonetics which studies the functional aspect of speech sounds
  3. 4. The science which means the study of style
  4. 5. Syllable which ends in a vowel
  5. 6. Strong is