Go To Program 125 Decoder State-Copying for Bluetooth CVSD Packet Loss Concealment Xuejing Sun 1 Kuan-Chieh Yen 1 1 Cambridge Silicon Radio, Auburn Hills, MI, United States This paper describes a novel packet loss concealment (PLC) algorithm for Bluetooth CVSD codec by updating decoder states efficiently through state-copying. In the proposed method, the decoder states are stored in buffers and then selected based on the estimated pitch period of the decoded signal. The selected states are used to reset the decoder states when the packet is lost or corrupted. Objective evaluations show the proposed algorithm consistently outperforms the decoded domain PLC algorithm. View pdf