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Link to original content: https://doi.org/10.21437/Interspeech.2005-803
Recently, we demonstrated that vocal tract length normalization (VTLN) can be applied to voice conversion tasks. In particular, when the conversion algorithm is performed in time domain, this technique is very resource-efficient and, consequently, suitable for embedded applications. In this paper, we use VTLN-based voice conversion as a novel feature of a small footprint speech synthesizer running on mobile devices. The characteristics of this feature are investigated by means of extensive subjective tests.