← Search

Christopher Liberatore

3 accepted papers

2022

Minimizing Residuals for Native-Nonnative Voice Conversion in a Sparse, Anchor-Based Representation of Speech

ICASSP 2022accepted

We present a dictionary-learning algorithm for reducing the sparse coding residual of an exemplar-based method for native-to-nonnative voice conversion (VC). The proposed algorithm iteratively updates the source and target speaker dictionaries to reduce both the residual and voice conversion error,…

Cited by 0SourceScholar
2018

Voice Conversion Through Residual Warping in a Sparse, Anchor-Based Representation of Speech

ICASSP 2018accepted

In previous work we presented a Sparse, Anchor-Based Representation of speech (SABR) that uses phonemic “anchors” to represent an utterance with a set of sparse non-negative weights. SABR is speaker-independent: combining weights from a source speaker with anchors from a target speaker can be used f…

Cited by 6SourceScholar
2015

Joint optimization of anatomical and gestural parameters in a physical vocal tract model

ICASSP 2015accepted

We describe a method for adapting a physical vocal tract model's anatomical and gestural parameters using acoustic information to match a target speaker. Physical vocal tract models are hard to adjust to match a speaker, as doing so requires information which is difficult to capture, such as X-Ray o…

Cited by 0SourceScholar