Progress in the BBN 2007 Mandarin Speech to Text system
Tim Ng, Bing Song Zhang, Kham Nguyen, Long Nguyen · IEEE International Conference on Acoustics Speech and Signal Processing · 2008
In this paper, we describe the BBN 2007 Mandarin speech-to-text system developed for the GALE Evaluation 2007. In comparison to the BBN 2006 Mandarin system, we achieved 25% relative reduction in character error rate on the most important test sets. The utilization of all available training data provided the largest contribution to the improvement. The use of a better pitch tracking algorithm also contributed significantly, while system combination made some noticeable improvement too.