Norwegian numerals: a challenge to automatic speech recognition

Addresses the problem of speaker-independent connected-numeral recognition over telephone lines. Increasing the vocabulary from digits (0-9) to numerals (0-99) opens up the possibility for more user-friendly services, but it also introduces many new, language-specific problems. This paper investigates morphological, phonemic and allophonic variations in the pronunciation of numerals in Norwegian. If improvements in recognition performance are to be achieved, these language-specific issues have to be considered.