Fernando Villavicencio's  home page

Voice Conversion examples 

Here you can check some of my Voice Conversion Examples. Conversion examples come from different sentences looking to reduce the influence of the particular speaker prosody. Average F0 transposition is performed on inter-gender cases. The sentence  used as "example 1" is the same for all the cases in order to show multiple timbre conversions coming from the same source file. The speech material is in french. Examples tagged as "LP"  correspond to conversions performed using Linear Prediction as envelope model.


Speakers samples



Male to male conversion



Male to Female conversion



Female to Female conversion



Optimal residual examples 


Efficient envelope estimation can be achieved  by the cepstrum-based True-Envelope estimator and F0 based model order selection.  As result, "optimal " residual signals with increased speaker-features extraction can be computed. Here we show a comparison between this method and the one based on LPC modeling.





Mel & PCA based full-quality VC  


Preservation of the converted speech quality on full quality audio signals (44.1 KHz) will generally lead to significantly increase the envelope order. Accordingly, we applied mel-scaling of the frequency axis and principal component analysis on the envelope data of the speakers to derive the features conversion function in a new space of reduced dimensionality. As result, low-dimensionality processing is possible to achieve High-Quality Voice Conversion.