Exponential sinusoidal modeling of transitional speech segments

A generalized sinusoidal model for speech signal process-ing is studied. The main feature of the model is that the am-plitude of each sinusoidal component is allowed to vary ex-ponentially with time. We propose to use the model in tran-sitional speech segments such as speech onsets and voiced/un-voiced transitions. Computer simulations with natural speech signals indicate substantial better modeling performance in both transitional and voiced regions compared with the tra-ditional constant-amplitude sinusoidal model. 1