Signal Processing in VoIP Systems
Tokunbo Ogunfunmi · 2010
Speech communication using the VoIP is rapidly replacing the ubiquitous circuit-switched telephone service. The packetization of speech and its transmission through packet-switched networks, however, introduces numerous impairments including delay, jitter, packet loss, and decoder clock offset, which degrade the quality of the speech. Advanced signal processing algorithms can combat these impairments and render the perceived quality of a VoIP conversation to be as good as that of the existing telephone system.