New Forum system requires email address which you used to apply for your account to replace your original username. Password stays the same.Please see this post for more details
http://forum.yealink.com/forum/showthread.php?tid=40344

Yealink Test Club has been officially launched. Please visit post below to get detail information. Come and join us!
http://forum.yealink.com/forum/announcements.php?aid=18

We just had the YMCS online and we are also working on the features plan on the future versions, in this regard we are need to hear your voice about the YMCS.
Please visit : http://forum.yealink.com/forum/showthread.php?tid=42322


Post Reply 
 
Thread Rating:
  • 1 Votes - 5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
VAD Bandwidth gain on G722 and G729
Author Message
avayax Offline
Member
***

Posts: 105
Joined: Mar 2015
Reputation: 1
Post: #1
VAD Bandwidth gain on G722 and G729
By default, VAD is disabled on my T23G phones.

How much bandwidth would I on average be conserving on G722 and G729 calls with VAD enabled?

Are there any disadvantages in turning it on?
(This post was last modified: 01-12-2016 09:38 PM by avayax.)
01-12-2016 09:38 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Yealink_Michael Offline
Administrator
*******

Posts: 382
Joined: Jul 2015
Reputation: 1
Post: #2
RE: VAD Bandwidth gain on G722 and G729
HI

Voice Activity Detection (VAD) is used in speech processing to detect the presence or
absence of human speech. When detecting period of “silence”, VAD replaces that
silence efficiently with special packets that indicate silence is occurring. It can facilitate
speech processing, and deactivate some processes during non-speech section of an
audio session. VAD can avoid unnecessary coding or transmission of silence packets in
VoIP applications, saving on computation and network bandwidth.

For the present , no obvious disadvantage is found in turning it on

TKS & BR
Michael
01-13-2016 05:50 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
ronrogers Offline
Junior Member
**

Posts: 1
Joined: Mar 2016
Reputation: 0
Post: #3
RE: VAD Bandwidth gain on G722 and G729
Input signals sampled at 16 kHz, but with bandwidth limited to NB, are detected by the encoder.It indicates the input frame activity for performing voice activity detection (VAD). ITU-T G.729 contains the description of an algorithm for the coding of speech.The last column in the table lists the G.729 MOS. The other DTX annexes (F and G), offer similar bandwidth savings whenThe codecs such as Internet low bit rate codec (iLBC) [URL (iLBC)], G.722 the availability of higher network bandwidth from service providers, VAD/CNG is not.Custom essay writing service provides you the detailed information to understand everything about this topic.

Custom essay writing service
03-05-2016 06:02 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  codec g729.. Gilb 0 1,526 07-25-2015 03:32 PM
Last Post: Gilb
  VP530 Bandwidth Waztrix 1 2,466 07-08-2014 08:46 PM
Last Post: Yealink Support

Forum Jump:


User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication