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Repeated Pitch-shifting for Frequency Discretization as Artistic Effect for Speech Signals

Authors Planton, M.
Year 2020
Thesis Type Audio Engineering project
Topic Audio Signal Processing
Keywords Computermusic and Elektronic Music, frequency estimation, sound synthesis
Abstract Pitch-shifting effects have been used for a long time, but there are still new innovations to the employed algorithms for fundamental tone analysis (pitch-tracking) and synthesis of a frequency shifted audio signal (pitch-shifting). This project starts with the research on the contemporary pitch-tracking and pitch-shifting algorithms literature, to develop a frequency discretizing pitch-shifting algorithm for monophonic speech signals. Stategies and techniques of the specific design for the effects implementation are discussed. Finally the artistic potential of the effect is evaluated in several applications. So a monophonic speech signal is discretized according to certain pitch scales. The center of this study is the outcome of the repeated application of this audio effect and which possibilities it offers.
Supervisors Höldrich, R.