1. phonTools::a96
    Aronson et al. (1996) Hebrew Vowel Data
  2. phonTools::b95
    Bradlow (1995) Spanish Vowel Data
  3. phonTools::f73
    Fant (1973) Swedish Vowel Data
  4. phonTools::f99
    Fourakis et al. (1999) Greek Vowel Data
  5. phonTools::h95
    Hillenbrand et al. (1995) Vowel Data
  6. phonTools::p73
    Pols et al. (1973) Dutch Vowel Data
  7. phonTools::pb52
    Peterson & Barney (1952) Vowel Data
  8. phonTools::sound
    Sound object
  9. phonTools::t07
    Thomson (2007) Vowel Data
  10. phonTools::voweldata
    Information about Vowel Data Sets
  11. phonTools::y96
    Yang (1996) Korean Vowel Data