5th European Conference on Speech Communication and Technology

Rhodes, Greece
September 22-25, 1997

Improving The Intelligibility of Noisy Speech Using an Audible Noise Suppression Technique

D. E. Tsoukalas, J. Mourjopoulos, George Kokkinakis

Wire Communications Laboratory Electrical & Computer Engineering Dept., University of Patras, Greece

This paper presents some novel results concerning the problem of enhancing speech degraded by wideband additive noise. The enhancement scheme proposed in this work is based on the utilisation of the Auditory Masking mechanism as a measure for the definition and subsequent suppression of the frequency audible noise components. Accordingly, the enhancement technique minimises only those noise components responsible for audible signal degradations, so that the underlying speech signal quality is only minimally degraded. Extensive subjective and objective tests have shown that, after enhancement, the intelligibility of the processed signal can be improved even at very low S/N ratios.

Full Paper

Bibliographic reference.  Tsoukalas, D. E. / Mourjopoulos, J. / Kokkinakis, George (1997): "Improving the intelligibility of noisy speech using an audible noise suppression technique", In EUROSPEECH-1997, 1415-1418.