Abstract
This investigation studied the effects of two forms of rhinological disorders on the relative amplitude and time characteristics of the /m/, /n/, and // phonemes. Results showed that the temporal characteristics and performance variability associated with the production of the nasal sounds were within normal limits for the denasal subjects, whereas relative amplitude changes occurring across the V nasal V waveforms were significantly greater for the denasal speakers. These results suggest that true stop/nasal articulatory substitutions do not actually occur in the speech of denasal speakers. Clinical implications are discussed.

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