Intra-flow loss recovery and control for VoIP
MULTIMEDIA '01 Proceedings of the ninth ACM international conference on Multimedia
Adaptive Hybrid Error Control for IP-Based Continuous Media Multicast Services
QofIS '00 Proceedings of the First COST 263 International Workshop on Quality of Future Internet Services
SoftMAC: Layer 2.5 Collaborative MAC for Multimedia Support in Multihop Wireless Networks
IEEE Transactions on Mobile Computing
Broad phonetic classification using discriminative Bayesian networks
Speech Communication
Packet Loss Concealment Algorithm for VoIP Transmission in Unreliable Networks
Proceedings of the 2008 conference on New Trends in Multimedia and Network Information Systems
| Hi-index | 0.00 |
Long-term correlation within a speech signal is usually exploited to achieve higher compression ratios (e.g. RPE-LTP coders). In this paper we aim to use the long-term correlation to influence the packetization interval of a voice stream at the sender before sending it over a lossy packet-switched network. If a packet is lost, the receiver can conceal the loss of information by using adjacent signal segments of which (due to the pre-processing/packetization at the sender) a certain similarity to the lost segment can be assumed. Subjective test results show that the "Adaptive Packetization / Concealment" scheme (AP/C) can alleviate significantly the impact of isolated packet losses to speech quality.