Thesis (MScIng)--University of Stellenbosch, 2004. / ENGLISH ABSTRACT: A singing voice can be manipulated artificially by means of a digital computer for the
purposes of creating new melodies or to correct existing ones. When the fundamental frequency
of an audio signal that represents a human voice is changed by simple algorithms,
the formants of the voice tend to move to new frequency locations, making it sound unnatural.
The main purpose is to design a technique by which the pitch and formants of a
singing voice can be controlled independently. / AFRIKAANSE OPSOMMING: Onafhanklike formant- en toonhoogte beheer toegepas op ’n sangstem: ’n Sangstem kan
deur ’n digitale rekenaar gemanipuleer word om nuwe melodie¨e te skep, of om bestaandes
te verbeter. Wanneer die fundamentele frekwensie van ’n klanksein (wat ’n menslike stem
voorstel) deur ’n eenvoudige algoritme verander word, skuif die oorspronklike formante
na nuwe frekwensie gebiede. Dit veroorsaak dat die resultaat onnatuurlik klink. Die hoof
oogmerk is om ’n tegniek te ontwerp wat die toonhoogte en die formante van ’n sangstem
apart kan beheer.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/16267 |
| Date | 12 1900 |
| Creators | Calitz, Wietsche Roets |
| Contributors | Du Preez, J. A., University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : University of Stellenbosch |
| Source Sets | South African National ETD Portal |
| Language | en_ZA |
| Detected Language | English |
| Type | Thesis |
| Format | xv, 103 leaves : ill. |
| Rights | University of Stellenbosch |
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