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Fundamental frequency measurements were made for 26 male children, 13 with vocal nodules and 13 without vocal nodules. The two groups were matched for age and size. Fundamental frequencies were obtained from narrow-band sonograms that were magnified to expand the spectrum from 0 to 1300 Hz. The group with vocal nodules had significantly higher fundamental frequencies than the normal group. The results are discussed in relation to prior findings.

Recent physiological studies of whisper indicate that quiet whisper may not, as implied in past literature, be harmful to the voice. The present study examined differences in judged vocal quality pre- and post-whisper in 10 dysphonic patients, mostly college students. Results showed a significant preference for the vocal quality following a week of quiet whisper. The results are discussed in relation to clinical implications as well as clinical application.

The maximum duration times for /s/ and /z/ and the calculated s/z ratio were obtained from 123 dysphonic children, 69 with vocal cord nodules and 54 with no vocal cord pathology. Significant differences were found in the duration of /s/ versus /z/. The s/z ratio was found not to be significantly different for the two groups. The results indicate that the s/z ratio does not discriminate the presence of mass lesions in dysphonic children.

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