This paper describes an experimental prototype system developed for vocal modification. This system aims to modify a source vocal sample to match the time evolution, pitch contour and amplitude envelope of a similarly sung target vocal sample, simulating a non-parametric transfer of singing techniques from the target vocalist to the source vocalist. The system is comprised of a time-varying time/pitch/amplitude modification engine, a pitch-detector and a subsystem for the generation of modification parameters. Although the system has yet to attain a desirable level of robustness, it has successfully generated interesting synthesized samples that demonstrate the idea of a hybridizing vocal performance.
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