Progress in the BBN 2007 Mandarin Speech to Text system

Progress in the BBN 2007 Mandarin Speech to Text system

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 pro...

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Hauptverfasser: Ng, T., Bing Zhang, Nguyen, K., Long Nguyen
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Acoustic testing
Broadcasting
Decoding
Error analysis
Mandarin
Natural languages
pitch
Speech analysis
Speech recognition
system combination
System testing
Training data
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Beschreibung
Zusammenfassung: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.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2008.4517915