The consequences of linguistic perception on low-rate speech coding

This paper considers the issue of the effect of languages and linguistic perception on low-rate speech coding. Current algorithms exploit the redundancies of speech but these redundancies are not common across all languages. Similarly speech coder evaluation techniques do not take into account the nuances of linguistic perception across languages. This paper illustrates some of the linguistic sensitivities experienced by low-rate coders and explores approaches to low-rate coder design. This is achieved through an evaluation of cross-language spectral distortion measures which account for specific linguistic peculiarities influencing linguistic perception