“…Howard and Heselwood (2002a) also stress the importance of accurate phonetic vowel transcription as a way to establish patterns of contextual, sociophonetic and developmental variation in atypical speech but state that in the clinical and developmental literature a combination of transcription approaches is very often presented with consonants transcribed phonetically and vowels transcribed phonemically. Vowel identification is more problematic than consonant identification (Cutler, Smits, & Cooper, 2005) and this, combined with the constraints on perception imposed by individual phonology (Best & Tyler, 2007), leads to greater difficulty with transcription of vowels (Ball, 1991(Ball, , 1993Butcher, 1989;Howard & Heselwood, 2002b). Howard and Heselwood (2002a, p. 383) state that it is important to ''cultivate a critical awareness'' of our own phonologies.…”