Suitability of existing voice biometric engines

Summary
This deliverable outlines the current state of the main areas of research relevant to design phase and development. It consists of an extended technical report that reviews in particular the leading-edge state-of-the-art voice biometric engines (both commercial and non-commercial), while considering their pros and cons from the viewpoint of OCTAVE project goals. These include robustness to background noise and channel variation, resistance against spoofing attacks, and recognition accuracy on short utterances.