A Comparative Study of VoIP Quality Measurement from G.711 and G.729 Using PESQ and Thai Speech. - Kiattisak Yochanang; Therdpong Daengsi; Tuul Triyason; Pongpisit Wuttidittachotti (IAIT, 2013)

A study of perceptual VoIP quality evaluation with thai users and codec selection using voice quality - Bandwidth tradeoff analysis. - Therdpong Daengsi; Kiattisak Yochanang; Pongpisit Wuttidittachotti (ICTC, 2013)