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Graceful degradation of speech recognition performance over lossy packet networks   
摘  要:   This paper explores packet loss recovery in client-server Au- tomatic Speech Recognition (ASR) systems. A forward error correction (FEC) system is designed and tested over several channel loss models, at variable amounts of data acquisition de- lay. In experiments with simulated packet loss, the FEC system provides robust ASR performance which degrades gracefully as packet loss rates increase. Comparing this scheme to several al- ternatives under low and medium loss channel conditions, we found one approach (multiple transmission plus interpolation) that yielded similar performance, but the FEC system should scale better to lower bit rate conditions.
发  表:   Annual Conference of the International Speech Communication Association  2001

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