Standards for Audio and Spech Coding

[llbbl]

G.711
PCM at 64 kbit/s

G.721
ADPCM at 32 kbit/s

G.723
ADPCM at 24 and 40 kbit/s

G.726
G.723 + G.721

G.727
embedded ADPCM at 40, 32,24, and 16 kbit/s

G.729
CS-ACELP at 8 kbit/s

G.722
SBC+ADPCM for wide band speech at 64, 56, and 48 kbit/s. A SBC scheme having two bands, 0/4 kHz and 4/8 kHz is uded; in each band there is a G.721 encoder. Bit allocation in the two bands is dynamic,.

IS-54
VSELP (vector sum excited linear prediction) at 7.95 kbit/s

FS-1015 (LPC-10E)
LPC at 2.4 kbit/s

FS-1016
CELP at 4.8 kbit/s

GSM-FR
RPE-LTP (long term prediction) at 13 kbit/s; there is also a 5.6 kbit/s version

MPEG1 Layer I
SBC at 192 kbit/s per audio channel (stereo)

MPEG Layer II
SBC at 128 kbit/s per audio channel

MPEG1 Layer III
SBC+MDCT+Huffmancoding at 96 kbit/s per audio channel

MPEG2 AAC
SBC+MDCT coding at 64 kbit/s per audio channel

[hr]
Asleep yet? :D