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Vorbis, AAC, MP3
0
80
40
AMR-WB+
AAC-LD
Opus
G.729
80
40
Bitrate (kbps/channel)
Delay (ms)
20
narrowband
wideband
> wideband
200
≈
≈
Speex (NB, WB)
G.722.1C
Archival
Real-time (live)
Phone quality
High fidelity
G.729.1