Acoust ic Analysis of Stuttering Children's Fluent Speech : Pre- and Post - Therapy

This study compared absolute durations of temporal acoustic parameters at the subsegmental level of fluent speech produced by stuttering children (N = 4) before and after Normal Talking Process therapy. These measures were compared with those of an ageand gender -matched control group of normally fluent children. The find- ings indicated that voice onset time (VOT ) and CV(consonant - vowel) transition duration decreased significantly after therapy. Children who stutter produced signi- ficantly longer vowel duration than control group both before and after therapy. The result s were discussed in light of differential aspect s of the treatment.