[轉]code
http://www.pczone.com.tw/vbb3/thread/16/100142/29/#post1049651
編碼標準 Bit rate(Kbps) MOS G.711 64 4.3 G.726 32 4.0 G.723 6.3 3.8 G.728 16 3.9 G.729 8 4.0 GSM HR 5.6 3.5 GSM EFR 12.2 4.0
*MOS(Mean Opinion Score) 5-Excellent 4-Good == 收費品質要求(根據ITU-T Recommendation P.800) 3-Fair 2-Poor 1-Bad