The purpose of this study was to investigate the possibility of the identification of nasality using waveshape analysis, as opposed to spectrum analysis. Previously attempted spectrographic studies have revealed no consistent or reliable results. Further spectrum analysis failed to discover any consistent distinguishing accoustical characteristics that could reliably aid in the discrimination between nasality and other vocal qualities. / The results of this study indicate that the number of zero crossings in a waveform varies directly with the degree of nasality in a singer's voice. Electronic instrumentation was desgned to measue the frequency of the zero crossing in a waveshape. This instrumentation was used in the analysis procedure. / It was found that the zero crossing circuit correctly identified nasal samples in 9 out of 10 cases. These results indicate that the electronic zero crossing indicator used in this study provided a valid means of detection of the presence of nasality in the singing voice. / Continued investigation is urged to utilize waveshape analysis in the design of an electronic nasality detection system. Zero crossing measurements should be used either as the basis of the design or in conjunction with other identifying characteristics of nasality that may be determined from further analysis. / Source: Dissertation Abstracts International, Volume: 43-03, Section: A, page: 0579. / Thesis (Ph.D.)--The Florida State University, 1982.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_74776 |
| Contributors | BURKE, BARBARA PATRICIA., Florida State University |
| Source Sets | Florida State University |
| Detected Language | English |
| Type | Text |
| Format | 205 p. |
| Rights | On campus use only. |
| Relation | Dissertation Abstracts International |
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