@inproceedings{kobayashi14interspeech,
    title = {Statistical Singing Voice Conversion with Direct Waveform Modification based on the Spectrum Differential},
    author = {Kazuhiro Kobayashi and Tomoki Toda and Graham Neubig and Sakriani Sakti and Satoshi Nakamura},
    booktitle = {15th Annual Conference of the International Speech Communication Association (InterSpeech 2014)},
    address = {Singapore},
    month = {September},
    url = {http://www.phontron.com/paper/kobayashi14interspeech.pdf},
    year = {2014}
}