VoIP quality of experience: A study of perceptual voice quality from G.729, G.711 and G.722 with Thai users referring to delay effects - Pongpisit Wuttidittachotti; Therdpong Daengsi; Chai Wutiwiwatchai; Apiruck Preechayasomboon; Saowanit Sukparungsee (My University, 2013)
Keywords: Codec; Wireless Communication Networks Research