Audio coding formats featured on this post:
- G.711
- G.723.1
- G.722
- G.728
- G.729
G.723.1
G.723.1: used for internet audio.
G.711
G.711 has higher audio quality than G.723.1.
G.728
G.728 is an ITU-T standard for speech coding, being the the one that takes more bandwidth.
G.728A has a sampling frequency of 16 kbits per second.
It has higher audio quality than G.723.1.
G.722
G.722: even higher audio quality than G.711 and G.728.
G.729
G.729.
MPEG: requires lots of CPU processing and adds too much delay, so it is valid for stored video but not for live video.