Abstract
A 13-oct band analysis was used to compare cries occurring in cleft palate and normal babies. Sound-pressure levels on the linear scale, re 0.0002 μbar, were also observed. Cries from twenty-one normal and seven unrepaired cleft palate subjects ranging in ages from 112 to 24 months were recorded in the study. SPLs of the loudest cries averaged 96.7 dB for the normals and 97.5 dB for the cleft subjects. Frequency band means were used for graphically comparing the normal males versus females and the cleft palates versus normals. Results indicate that neither the SPL nor the 13-oct band spectrum of the cry can be used to identify a subject's age, sex, or palatal condition.
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