“…Acoustic features of speech have been used extensively to separate emotional coloring present in the speech signal by employing several pattern recognition techniques (Ang et al, 2002;Nwe et al, 2003;Lee and Narayanan, 2005;Batliner et al, 2006;Schuller et al, 2007b;Kapoor et al, 2007;Morrison et al, 2007;Neiberg and Elenius, 2008;Lee et al, 2009). Phoneme, syllable and word level statistics corresponding to F0 (fundamental frequency), energy, duration, spectral parameters, and voice quality parameters are among the features that have been mainly used for emotion recognition.…”