@inproceedings{guanlong2019-interspeech,

title = {Foreign Accent Conversion by Synthesizing Speech from Phonetic Posteriorgrams},

author = {G Zhao and S. Ding and Ricardo Gutierrez-Osuna},

url = {https://psi.engr.tamu.edu/wp-content/uploads/2019/07/zhao2019interspeech.pdf},

year  = {2019},

date = {2019-09-15},

urldate = {2019-09-15},

booktitle = {Proc. Interspeech},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{ding2018interspeech2,

title = {Improving Sparse Representations in Exemplar-Based Voice Conversion with a Phoneme-Selective Objective Function},

author = {S. Ding and G Zhao and C. Liberatore and R. Gutierrez-Osuna},

url = {https://psi.engr.tamu.edu/wp-content/uploads/2018/09/ding2018interspeech2.pdf},

doi = {10.21437/Interspeech.2018-1272},

year  = {2018},

date = {2018-09-02},

booktitle = {Proc. Interspeech},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{zhao2018interspeech,

title = {L2-ARCTIC: A Non-Native English Speech Corpus},

author = {G Zhao and S Sonsaat and A Silpachai and I Lucic and E Chukharev-Hudilainen and J Levis and R Gutierrez-Osuna},

url = {https://psi.engr.tamu.edu/wp-content/uploads/2018/08/zhao2018interspeech.pdf

https://psi.engr.tamu.edu/l2-arctic-corpus/},

year  = {2018},

date = {2018-09-02},

booktitle = {Proc. Interspeech},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{liberatore2018icassp,

title = {Voice Conversion through Residual Warping in a Sparse, Anchor-Based Representation of Speech},

author = {C Liberatore and G Zhao and R Gutierrez-Osuna},

url = {https://psi.engr.tamu.edu/wp-content/uploads/2018/03/liberatore-icassp2018.pdf},

year  = {2018},

date = {2018-04-15},

booktitle = {Proc. ICASSP},

abstract = {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 for voice conversion. Here, we present an extension of the original SABR that significantly improves voice conversion synthesis. Namely, we take the residual signal from the SABR decomposition of the source speaker’s utterance, and warp it to the target speaker’s space using a weighted warping function learned from pairs of source-target

anchors. Using subjective and objective evaluations, we examine the performance of adding the warped residual (SABR+Res) to the original synthesis (SABR). Specifically, listeners rated SABR+Res with an average mean opinion score (MOS) of 3.6, a significant improvement compared to 2.2 MOS for SABR alone (𝑝 < 0.01) and

2.5 MOS for a baseline GMM method (𝑝 < 0.01). In an XAB speaker identity test, listeners correctly identified the identity of SABR+Res (81%) and SABR (84%) as requently as a GMM method (82%) (𝑝 = 0.70, 𝑝 = 0.35). These results indicate that adding the warped residual can dramatically improve synthesis while retaining the 

 desirable independent qualities of SABR models.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{zhao2018icassp,

title = {Accent conversion using phonetic posteriorgrams},

author = {G Zhao and S Sonsaat and J Levis and E Chukharev-Hudilainen and R Gutierrez-Osuna},

url = {https://psi.engr.tamu.edu/wp-content/uploads/2018/03/zhao2018icassp.pdf

http://people.tamu.edu/~guanlong.zhao/icassp18_demo.html

https://psi.engr.tamu.edu/l2-arctic-corpus/

https://github.com/guanlongzhao/ppg-gmm},

year  = {2018},

date = {2018-04-15},

urldate = {2018-04-15},

booktitle = {Proc. ICASSP},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{zhao-2017-icassp,

title = {Exemplar selection methods in voice conversion},

author = {G Zhao and R Gutierrez-Osuna},

url = {https://psi.engr.tamu.edu/wp-content/uploads/2018/01/zhao2017icassp.pdf

http://people.tamu.edu/~guanlong.zhao/spring17/icassp17},

doi = {10.1109/ICASSP.2017.7953213},

year  = {2017},

date = {2017-03-05},

booktitle = {Proc. 42nd International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},

pages = {5525-5529},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}