Gesangsvibrato: Messung und Modifikation

Diploma thesis (pdf 37.677 KB)

The human singing voice has many aspects unique to it such as its wide tonal range, the rich repertoire of timbral colorizations or the possibilities regarding dynamics and phrasing while singing. The entity of all those attributes yields an instrument with very special properties. As one of those properties, vibrato can be singled out being one of the most artistic and virtuoso features of the singing voice.

The objective of this work will be to discuss the anatomy of the singing voice and the mechanisms involved in voice production leading into a framework of measures to describe a singing voice and its quality on a physical basis.

Based on this knowledge a set of parameters will be presented to describe the occurrence of vibrato in singing as well as employing and comparing different methods of estimating them from natural voice recordings.

Finally, this project aims to present strategies of modifying those parameters, more precisely, synthesizing artificial vibrato or cancelling it from vocal audio signals in an acoustically and musically valuable manner.