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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Authors:
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)
Abstract:
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.