Multi-stream speech recognition: Ready for prime time?

Janin, Adam; Ellis, Daniel P. W.; Morgan, Nelson

Multi-stream and multi-band methods can improve the accuracy of speech recognition systems without overly increasing the complexity. However, they cannot be applied blindly. In this paper, we review our experience applying multi-stream and multiband methods to the Broadcast News corpus. We found that multi-stream systems using different acoustic front-ends provide a significant improvement over single stream systems. However, despite the fact that they have been successful on smaller tasks, we have not yet been able to show any gain using multi-band methods. We report various insights gained from the experience in applying these methods in a large-vocabulary task.


Also Published In

Eurospeech 99: 6th European Conference on Speech Communication and Technology: Budapest, Hungary, September 5-9, 1999

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Academic Units
Electrical Engineering
Published Here
July 3, 2012