Quality Improvement of VoIP CODEC Using Tandem Technique
Pawitra Lokbow · 2013
Variety of compression algorithms of each VoIP CODEC makes the quality of the output files different. As voices may need to be encoded multiple times while being sent through multiple networks that use different CODEC (so called CODEC tandem), there is a possibility that the CODECs which provide low voice quality may be used together with others that provide much better voice quality. The main purposes of this research are to analyze and seek improvement in the quality of voices encoded using VoIP CODEC