User blog comment:Angel Emfrbl/Vocaloid Vs UTAU/@comment-3467648-20130117234733

Actually UTAU has all the advantages and disvantages of a free licencing software. The software and  recording methods has developed quicker than Vocaloid because is a free thing and anybody can contribute, that allows a lot of field for experiment leading to some interesting result and high quality voicebanks. However, due the fandom contributing actively there isn't a proffesional approach as occurs with Vocaloid...

If you know the story behind MTG and Voctro Labs you will know the guys needed YEARS of develoment to manage to synthesize ONE WORD. And man! We are talking of the MTG, one of the leading groups in the terms of digital music development. It was required years of study how is produced the voice, how varies, etc. That needs to blend Linguistics, Music and Digital Analisis which is a really complex task

Really little to null people behind UTAU has that kind of knowledge and tools for allow a develoment comparable to Vocaloid. However, despite this hindrance the people behind UTAU has managed to compensate the lack of technical resourses with ingenuity and tenacity.