Title
Multi-Staged Cross-Lingual Acoustic Model Adaption for Robust Speech Recognition in Real-World Applications -- A Case Study on German Oral History Interviews
Abstract
While recent automatic speech recognition systems achieve remarkable performance when large amounts of adequate, high quality annotated speech data is used for training, the same systems often only achieve an unsatisfactory result for tasks in domains that greatly deviate from the conditions represented by the training data. For many real-world applications, there is a lack of sufficient data that can be directly used for training robust speech recognition systems. To address this issue, we propose and investigate an approach that performs a robust acoustic model adaption to a target domain in a cross-lingual, multi-staged manner. Our approach enables the exploitation of large-scale training data from other domains in both the same and other languages. We evaluate our approach using the challenging task of German oral history interviews, where we achieve a relative reduction of the word error rate by more than 30% compared to a model trained from scratch only on the target domain, and 6-7% relative compared to a model trained robustly on 1000 hours of same-language out-of-domain training data.
Year
Venue
DocType
2020
LREC
Conference
ISSN
Citations 
PageRank 
12th International Conference on Language Resources and Evaluation (LREC 2020), pages 6354-6362
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Gref Michael100.34
Walter Oliver200.34
Christoph Schmidt3637.72
Sven Behnke41672181.84
Köhler Joachim501.01