Dinei Florencio and Li-wei He
Voice over IP (VoIP) is already of commercial quality when
traversing corporate, or other high-quality networks. Nevertheless, to
make the final bridge to toll quality over standard internet connections,
a few problems remains to be solved. These include packet loss, jitter
control, and clock drift compensation. Previous research in adaptive
playout mechanisms has significantly contributed towards that end. In
this paper, we present a novel technique that enhances previous adaptive
playout mechanisms, and virtually eliminate late losses. Additionally,
enhanced stretching and loss concealment algorithms are also presented.
These work in harmony with the proposed technique to alleviate network
jitter and any clock drift.
|Published in||ISCAS 2011|
|Publisher||Institute of Electrical and Electronics Engineers, Inc.|