nanog mailing list archives

Re: what is acceptible jitter for voip and videoconferencing?


From: Tom Beecher <beecher () beecher cc>
Date: Thu, 21 Sep 2023 09:28:02 -0400

My understanding has always been that 30ms was set based on human
perceptibility. 30ms was the average point at which the average person
could start to detect artifacts in the audio.

On Tue, Sep 19, 2023 at 8:13 PM Dave Taht <dave.taht () gmail com> wrote:

Dear nanog-ers:

I go back many, many years as to baseline numbers for managing voip
networks, including things like CISCO LLQ, diffserv, fqm prioritizing
vlans, and running
voip networks entirely separately... I worked on codecs, such as oslec,
and early sip stacks, but that was over 20 years ago.

The thing is, I have been unable to find much research (as yet) as to why
my number exists. Over here I am taking a poll as to what number is most
correct (10ms, 30ms, 100ms, 200ms),

https://www.linkedin.com/feed/update/urn:li:ugcPost:7110029608753713152/

but I am even more interested in finding cites to support various
viewpoints, including mine, and learning how slas are met to deliver it.

--
Oct 30:
https://netdevconf.info/0x17/news/the-maestro-and-the-music-bof.html
Dave Täht CSO, LibreQos


Current thread: