Yealink VCM34 Administrator's Guide

| Configuring the Audio Settings | 155
Audio Codec Algorithm Bit Rate Sample Rate
(Effective)
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
ARES ARES 8-64kpbs 48 Ksps None
G.722.1C 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
G.722 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
G729 G.729 16 Kbps 8 Ksps RFC 3551
The Opus codec supports the following audio bandwidths:
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
Configuring Audio Codecs
Procedure
1. On your web user interface, go to Account > Codec > Audio Codec.
2. Configure and save the following settings:
Parameter Description Configuration Method
Enabled
Configure the audio codecs to be
used.
Note: You can move the disabled
codec to this field.
Web user interface

Yealink VCM34 Specifications

General

Product type	Microphone
Product color	Black, Grey
LED indicators	Yes
Package depth	196 mm
Package width	310 mm
Package height	80 mm
Package weight	4260 g
Connectivity technology	Wired
Ethernet LAN (RJ-45) ports	2
Power source type	PoE
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 90 %
Quantity	1
Cables included	LAN (RJ-45)

Weight and Dimensions

Depth	171.5 mm
Width	169 mm
Height	37.5 mm