In this paper, a speech enhancement method based on sparse representation of data frames has been presented. Speech enhancement is one of the most applicable areas in different signal processing fields. The objective of a speech enhancement system is improvement of either intelligibility or quality of the speech signals. This process is carried out using the speech signal processing techniques ...

Objective: The purpose of the present research was to compare speech intelligibility in children with cochlear implant, with hearing aids and normal hearing in Tehran province.  Materials & Methods: Sixty children underwent this analytic and comparative research. They were divided into three groups and each group contains 20 children. First and second group were selected, ordinarily, from ch...

The design for new feature extraction methods out of the speech signal and combination of their obtained information is one of the most effective approaches to improve the performance of automatic speech recognition (ASR) system. Recent researches have been shown that the speech signal contains nonlinear and chaotic properties, but the effects of these properties are not used in the continuous ...

The serious challenge that contemporary human is encountered with has been brought about by the lack of applying ethical and behavioral necessities in his life rather than by the weakness of the rules or lack of technology. One of the mentioned important necessities is the factor of speech perseverance which has a particular conceptual and meaningful weight that is the adducing of the right spe...