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- W2040374013 abstract "Digital mobile telecommunication systems, such as the global system for mobile (GSM) system, want to further improve speech communication quality without changing the channel encoders and decoders. Speech quality is most affected by residual bit errors in received speech frames. Conventional methods use binary decision strategies for error detection and concealment in frames. This paper presents a multi-level error detection and concealment algorithm for GSM full rate speech codec systems. The algorithm uses multi-source knowledge to detect and conceal speech frame errors at the frame, parameter, and even bit levels. Tests show that most corrupted frames can be appropriately concealed by this algorithm, resulting in MOS gains of more than 50% for real-world data tests." @default.
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- W2040374013 date "2011-06-01" @default.
- W2040374013 modified "2023-09-26" @default.
- W2040374013 title "Multi-level error detection and concealment algorithm to improve speech quality in GSM full rate speech codecs" @default.
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- W2040374013 doi "https://doi.org/10.1016/s1007-0214(11)70036-0" @default.
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