Alaryngeal Speech Enhancement Using Pattern Recognition Techniques

Gualberto AGUILAR  Mariko NAKANO-MIYATAKE  Hector PEREZ-MEANA  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E88-D   No.7   pp.1618-1622
Publication Date: 2005/07/01
Online ISSN: 
Print ISSN: 0916-8532
Type of Manuscript: Special Section LETTER (Special Section on Recent Advances in Circuits and Systems--Part 1)
Category: Biomedical Circuits and Systems
Keyword: 
speech enhancement,  artificial larynx,  multilayer perceptron,  alaryngeal speech,  

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Summary: 
An alaryngeal speech enhancement system is proposed to improve the intelligibility and quality of speech signals generated by an artificial larynx transducer (ALT). Proposed system identifies the voiced segments of alaryngeal speech signal, by using pattern recognition methods, and replaces these by their equivalent voiced segments of normal speech. Evaluation results show that proposed system provides a fairly good improvement of the quality and intelligibility of ALT generated speech.