A.10 B.20 C.30 D.40
A.64kbit/s B.2048kbit/s C.155520kbit/s D.2Mbit/s
A.2Mbit/s及155Mbit/s B.2Mbit/s及622Mbit/s C.155Mbit/s及622Mbit/s D.2Mbit/s及139264Kbit/s