5th European Conference on Speech Communication and Technology

Rhodes, Greece
September 22-25, 1997

Missing Packet Recovery Techniques for DM Coded Speech

Wen-Whei Chang (1), Hwai-Tsu Chang (2), Wan-Yu Meng (2)

(1) Department of Communication Engineering National Chiao Tung University, Hsinchu, Taiwan
(2) Advance Technology Center, Computer and Communication Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan

The packet loss effects of DM coded speech can be mitigated by either using an embedded DM system (EDM) or using a tree search interpolator. This paper provides theoretical and experimental results for EDM coding of autoregressive sources under random error conditions. For the tree interpolation, we explore the benefits of delayed decoding by using an interpolative DM code generator to form a tree of sample possibilities given the remaining adjacent samples.

Full Paper

Bibliographic reference.  Chang, Wen-Whei / Chang, Hwai-Tsu / Meng, Wan-Yu (1997): "Missing packet recovery techniques for DM coded speech", In EUROSPEECH-1997, 1247-1250.