78 Jane Stuart-Smith, Eleanor Lawson and James M. Scobbie
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end-5 end-4 end-3 end-2 end-1 end5001000150020002500300035000
end-5 end-4 end-3 end-2 end-1 end500100015002000250030003500Figure 7. Handcorrected time-normalized formant tracks taken at the end of the
vocalic portion and for each of the five preceding pulses, for the first three formants
for two speakers: (a) 14 year-old boy heard as rhotic, shows slight dip in a high F3 in
most words with /r/ (this boy produced far, Figure 6c). (b) 14 year-old boy heard with
mainly pharyngealized vowels for words with /r/, shows high, flat or rising F3, with weak
amplitude (this boy produced far, Figure 6f ).The outcome of the acoustic analysis is not as helpful as we had hoped. In part this
is because the reflexes of derhoticisation do not relate easily to known acoustic
parameters. Rather the clearest common characteristic is a reduction of acoustic
energy above F2. On the one hand, these stretches of very weak formant energy,
with and without, voicing, may help account for the variable auditory percepts of