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IMPROVED AUTOMATIC RECOGNITION OF NORWEGIAN NATURAL NUMBERS BY INCORPORATING PHONETIC KNOWLEDGE
 

Summary: IMPROVED AUTOMATIC RECOGNITION OF NORWEGIAN NATURAL NUMBERS
BY INCORPORATING PHONETIC KNOWLEDGE
Knut Kvale and Ingunn Amdal
Telenor Research and Development, Instituttveien 23, N-2007 Kjeller, Norway
E-mail: fKnut.Kvaleg,fIngunn.Amdalg@fou.telenor.no
ABSTRACT
This paper addresses the problem of speaker-independent
connected natural number recognition over telephone lines.
Increasing the vocabulary from digits (0{9) to natural num-
bers (0{99) opens for more user-friendly services, but also
introduces many new, language-speci c problems, such as
more similar sounding words, a more complex grammar net-
work, and more ambiguities due to segmentation problems
of connected natural numbers. The paper shows that in-
corporating phonetic knowledge into a Norwegian natural
number recogniser, improved the recognition performance
from 70.6 % to 76.3 % correctly recognised 8-digits tele-
phone numbers in noisy conditions.
1. INTRODUCTION
The number of services based on automatic speech recogni-

  

Source: Amdal, Ingunn - Department of Electronics and Telecommunications, Norwegian University of Science and Technology

 

Collections: Engineering