On Low-level Cognitive Components of Speech
Ling Feng, Lars Kai Hansen · 2006
In this paper we analyze speech for low-level cognitive features using linear component analysis. We demonstrate generalizable component fingerprints' stemming from both phonemes and speakers. Phonemes are fingerprints found at the basic analysis window time scale (20 msec), while speaker 'voiceprints' are found at time scales around 1000 msec. The analysis is based on homomorphic filtering features and energy based sparsification