Voip - Codecs e Banda Necessária

Codecs disponíveis pare Central VoIP Asterisk

VoIP Codecs

Codecs e respectivos Consumo de Banda

g.711 64 Kbps (todas as variantes)
g.723.1 5.3 Kbps
g.723.1 6.3 Kbps

g.726-16 Kbps

g.726 24 Kbps
g.726 32 Kbps
g.726 40 Kbps
g.728 16 Kbps
g.729a 8 Kbps

g.729e 11.8 Kbps

gsm 13.3 Kbps
gsm-hr 5.6 Kbps
gsm-efr 12.2 Kbps
iLBC 13.3 Kbps

iLBC 15.2 Kbps
Speex 5.5 Kbps

Speex 8 Kbps
Speex 11Kbps
Speex 15 Kbps
Speex 18.2 Kbps

Speex 24.6 Kbps
Lpc10

bv16 16 Kbps
bv32 32 Kbps
g.722 48 Kbps

g.722 56 Kbps
g.722 64 Kbps
g.722.1 24 Kbps

g.722.1 32 Kbps
g.722.2 23.85 Kbps

Bandwidth

* GIPS Family - 13.3 Kbps and up
* GSM - 13 Kbps (full rate), 20ms frame size
* iLBC - 15Kbps,20ms frame size: 13.3 Kbps, 30ms frame size
* ITU G.711 - 64 Kbps, sample-based Also known as alaw/ulaw
* ITU G.722 - 48/56/64 Kbps ADPCM 7Khz audio bandwidth
* ITU G.722.1 - 24/32 Kbps 7Khz audio bandwidth (based on Polycom's SIREN codec)
* ITU G.722.1C - 32 Kbps, a Polycom extension, 14Khz audio bandwidth
* ITU G.722.2 - 6.6Kbps to 23.85Kbps. Also known as AMR-WB. CELP 7Khz audio bandwidth
* ITU G.723.1 - 5.3/6.3 Kbps, 30ms frame size
* ITU G.726 - 16/24/32/40 Kbps
* ITU G.728 - 16 Kbps
* ITU G.729 - 8 Kbps, 10ms frame size
* Speex - 2.15 to 44.2 Kbps
* LPC10 - 2.5 Kbps
* DoD CELP - 4.8 Kbps

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