EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology

Aalborg, Denmark
September 3-7, 2001


A Proposed Method for Measuring Language Dependency of Narrow Band Voice Coders

Sander J. van Wijngaarden, Herman J. M. Steeneken

TNO Human Factors, The Netherlands

Narrow band voice coders that use vector quantization techniques may suffer from language dependency: the performance of the coder (in terms of speech intelligibility) may depend on the language spoken. For multinational applications, this is undesirable. A test method is proposed that may be used to determine to which extent a vocoder is language dependent. The proposed method, based on a subjective speech intelligibility test in multiple languages, is shown to be feasible by application on known language dependent 'systems': non-native (human) speakers and listeners. The method is shown to be able to significantly prove differences in language dependency, even when using only three languages and nine speaker/listener combinations.

Full Paper

Bibliographic reference.  Wijngaarden, Sander J. van / Steeneken, Herman J. M. (2001): "A proposed method for measuring language dependency of narrow band voice coders", In EUROSPEECH-2001, 2495-2498.