Esophageal Speech enhancement using modified voicing source

Author

Ishaq, Rizwan ; Garcia Zapirain, Begona

Author_Institution

DeustoTech-LIFE, Univ. of Deusto, Bilbao, Spain

fYear

2013

Abstract

This paper presented the modification to Esophageal Speech (ES) enhancement using Adaptive Gain Equalizer (AGE) for modifying the voicing source. However, the voicing source used previously with AGE, obtained using conventional Linear Predication (LP) vocal tract transfer function (AGE-LP), has produced low quality speech due to sensitivity to background noise. The better quality ES can be obtained by estimating voicing source through Iterative Adaptive Inverse Filtering utilized Weighted Linear Prediction (WLP) vocal tract transfer function (AGE-IAIF). The system performance evaluated through Harmonic to Noise Ratio (HNR), and system has shown 3 dB enhancement by AGE-IAIF over previously enhancement method AGE-LP.

Keywords

adaptive filters; iterative methods; speech enhancement; AGE; AGE-IAIF; AGE-LP; ES enhancement; HNR; adaptive gain equalizer; esophageal speech enhancement; harmonic-to-noise ratio; iterative adaptive inverse filtering; linear predication; modified voicing source; vocal tract transfer function; weighted linear prediction; Acoustics; Adaptation models; Adaptive equalizers; Flyback transformers; Speech; Vibrations; Esophageal speech; Filter bank; Iterative adaptive inverse filtering; Linear predictive coding; adaptive gain equalizer;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology(ISSPIT), 2013 IEEE International Symposium on

Conference_Location

Athens

Type

conf

DOI

10.1109/ISSPIT.2013.6781881

Filename

6781881