Title :
Robust voiced/unvoiced speech classification using fuzzy rules
Author :
Beritelli, Francesco ; Casale, Salvatore
Author_Institution :
Ist. di Inf. e Telecommun., Catania Univ., Italy
Abstract :
The paper presents a robust voiced/unvoiced speech classifier based on fuzzy logic. More specifically, the classification is based on a pattern recognition approach in which the matching phase is performed using a set of 5 fuzzy rules obtained by training. Certain interesting statistical properties of the fuzzy system allow the transition threshold to be adapted to the level of background noise. The results show that the performance of the fuzzy classifier in the presence of various types of background noise is better than that of traditional methods
Keywords :
fuzzy logic; pattern classification; speech coding; background noise; fuzzy classifier; fuzzy logic; fuzzy rules; matching phase; pattern recognition approach; performance; robust unvoiced speech classification; robust voiced speech classification; statistical properties; training; transition threshold; Background noise; Databases; Fuzzy systems; Robustness; Signal processing; Signal to noise ratio; Speech coding; Speech processing; Testing; Tongue;
Conference_Titel :
Speech Coding For Telecommunications Proceeding, 1997, 1997 IEEE Workshop on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-4073-6
DOI :
10.1109/SCFT.1997.623868
