vocality

from The Collaborative International Dictionary of English v.0.48

Vocality \Vo*cal"i*ty\ (v[-o]*k[a^]l"[i^]*t[y^]), n. [Cf. L.
   vocalitas euphony.]
   1. The quality or state of being vocal; utterableness;
      resonance; as, the vocality of the letters.
      [1913 Webster]

   2. The quality of being a vowel; vocalic character.
      [1913 Webster]