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A phonetic classification for throat microphone enhancement

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Fonetik siniflandirma ile girtlak mikrofonu iyileştirmesi a phonetic classification

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In this analysis paper, we investigate the effect of phonetic clustering based on place and manner of articulation for the enhancement of throat-microphone speech through spectral envelope mapping. Place of articulation (PoA) and manner of articulation (MoA) dependent GMM-based spectral envelope mapping schemes have been investigated using the reflection coefficient representation of the linear prediction model. Reflection coefficients are expected to localize mapping performance within the concatenation of lossless tubes model of the vocal tract. In experimental studies, we evaluate spectral mapping performance within clusters of the PoA and MoA using the log-spectral distortion (LSD) and as function of reflection coefficient mapping using the mean-square error distance. Our findings indicate that highest degradations after the spectral mapping occur with stops and liquids of the MoA, and velar and alveolar classes of the PoA. The MoA classification attains higher improvements than the PoA classification.

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IEEE

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Civil engineering, Electrical electronics engineering, Telecommunication

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2014 22nd Signal Processing and Communications Applications Conference (Siu)

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10.1109/SIU.2014.6830559

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