High-frequency power ratio of breathy voice

Kazuhiko Shoji, Elliot Regenbogen, Jong Daw Yu, Stanley M. Blaugrund

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Digital technological advances have made detailed voice analysis possible This report proposes with the use of such equipment a new method of quantifying differences in the high-frequency content of normal and breathy voices The high-frequency power ratio a ratio of high-frequency power versus total power was calculated as the lower limit of the high-frequency range (Fc) and varied from 1 to 10 kHz The high-frequency power ratio values of two groups 16 normal and 24 breathy voice individuals were then compared Three breathy individuals were also studied after type I thyroplasty High-frequency power ratio values measured at an Fc of 6 kHz significantly separated normal from breathy voices The specifications provided are appropriate for both the commercial voice lab and for clinical resources Furthermore a high-frequency power ratio (6 kHz) is a useful tool for the evaluation of phonosurgery.

Original languageEnglish
Pages (from-to)267-271
Number of pages5
Issue number3
StatePublished - Mar 1992
Externally publishedYes


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