Administrator’s Guide for Yealink VC800&VC500 Video Conferencing System
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The following table summarizes the supported audio codecs on the system:
Codec
Algorithm
Bit Rate
Sample Rate
Reference
Opus
opus
8-12 Kbps
16-20 Kbps
28-40 Kbps
48-64 Kbps
64-128 Kbps
8 Ksps
12 Ksps
16 Ksps
24 Ksps
48 Ksps
RFC 6716
G.722.1c
G.722.1
48 Kbps
32 Ksps
RFC 5577
G.722.1c
32 Kbps
32 Ksps
RFC 5577
G.722.1c
24 Kbps
32 Ksps
RFC 5577
G.722.1
G.722.1
24 Kbps
16 or 32 Ksps
RFC 5577
G722
G.722
64 Kbps
16 Ksps
RFC 3551
PCMU
G.711 u-law
64 Kbps
8 Ksps
RFC 3551
PCMA
G.711 a-law
64 Kbps
8 Ksps
RFC 3551
The Opus codec supports various audio bandwidths, defined as follows:
Abbreviation
Audio Bandwidth
Sample Rate (Effective)
NB (narrowband)
4 kHz
8 kHz
MB (medium-band)
6 kHz
12 kHz
WB (wideband)
8 kHz
16 kHz
SWB (super-wideband)
12 kHz
24 kHz
FB (fullband)
20 kHz
48 kHz
Audio codecs parameters on the system are described below:
Parameter
Description
Configuration Method
Enable Codecs
Specifies the audio codecs to be
used.
Note:
All support audio codecs are
enabled on the system by default.
Web User Interface
Disable Codecs
Specifies the audio codecs not to be
used.
Web User Interface
Opus Sample Rate
Configures the sample rate of the
opus audio codec.
Web User Interface
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