Section: New Results

Speech signal and the MMF

Participants : Oriol Pont, Khalid Daoudi, Hussein Yahia, Régine Obrecht, Vahid Khanagha.

In this line of research, the pertinence of non-linear methods and use of the MMF for Speech Processing are investigated. First results seek to establish the intermittent and multiscale properties of the speech signal, which is the prerequisite to any attempt at using multiscale and non-linear approaches for studying these types of signals. Preliminary results clearly show that the speech signal has intermittent and multiscale properties, and that the singular exponents, together with the most singular manifolds they determine in these 1D signals, convey key information in phonemes.