On the Use of Vocal-Tract Approximations for Instrumental Quality Assessment

Conference: Sprachkommunikation - Beiträge zur 10. ITG-Fachtagung
09/26/2012 - 09/28/2012 at Braunschweig, Deutschland

Proceedings: Sprachkommunikation

Pages: 4Language: englishTyp: PDF

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Norrenbrock, Christoph R.; Heute, Ulrich (Digital Signal Processing and System Theory, Christian-Albrechts-Universtät zu Kiel , 24143 Kiel, Germany)
Hinterleitner, Florian (Quality and Usability Lab, Telekom Innovation Laboratories, TU Berlin, 10587 Berlin, Germany)

The nature of linear prediction becomesmost vivid through the relation between predictor and reflection coefficients in the context of the source-filter model of speech production. In particular, an approximation of the vocal-tract shape can be recursively calculated using the reflection coefficients only. To date, it is not fully clear to what extent such an approximation can be exploited for a perception-related quality analysis of connected speech signals. In this paper, we will review known approaches from literature and elaborate on a novel extension towards instrumental quality assessment of synthesized speech signals.