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<p class="MsoNormal">I think it all goes back to the earliest MOS tests (“Hold up the number of fingers for how good the sound is”) and every once in a while somebody actually does some testing to look for correlations.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thought it’s 15 years old, I like this thesis for the writer’s reporting:
<a href="https://scholarworks.gsu.edu/cgi/viewcontent.cgi?article=1043&context=cs_theses">
https://scholarworks.gsu.edu/cgi/viewcontent.cgi?article=1043&context=cs_theses</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In particular, this table shows the correlation, and is consistent with what I would expect.<o:p></o:p></p>
<p class="MsoNormal"><img border="0" width="503" height="280" style="width:5.2395in;height:2.9166in" id="Picture_x0020_1" src="cid:image001.png@01D9EBA9.A25944E0"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Lee<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> NANOG <nanog-bounces+leehoward=hilcostreambank.com@nanog.org>
<b>On Behalf Of </b>Dave Taht<br>
<b>Sent:</b> Tuesday, September 19, 2023 8:12 PM<br>
<b>To:</b> NANOG <nanog@nanog.org><br>
<b>Subject:</b> what is acceptible jitter for voip and videoconferencing?<o:p></o:p></p>
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<p class="MsoNormal"><strong><span style="font-size:8.5pt;font-family:"Calibri",sans-serif;color:black;border:solid #9C6500 1.0pt;padding:2.0pt;background:yellow">This message is from an EXTERNAL SENDER - be CAUTIOUS, particularly with links and attachments.</span></strong><o:p></o:p></p>
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<p style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal">Dear nanog-ers:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">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<o:p></o:p></p>
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<p class="MsoNormal">voip networks entirely separately... I worked on codecs, such as oslec, and early sip stacks, but that was over 20 years ago.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">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),<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><a href="https://www.linkedin.com/feed/update/urn:li:ugcPost:7110029608753713152/">https://www.linkedin.com/feed/update/urn:li:ugcPost:7110029608753713152/</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">but I am even more interested in finding cites to support various viewpoints, including mine, and learning how slas are met to deliver it.
<o:p></o:p></p>
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<p class="MsoNormal"><br>
<span class="gmailsignatureprefix">-- </span><o:p></o:p></p>
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<p class="MsoNormal">Oct 30: <a href="https://netdevconf.info/0x17/news/the-maestro-and-the-music-bof.html" target="_blank">
https://netdevconf.info/0x17/news/the-maestro-and-the-music-bof.html</a><o:p></o:p></p>
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<p class="MsoNormal">Dave T�ht CSO, LibreQos<o:p></o:p></p>
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