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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I would have to say that one can expect audio distortion issues is just not true anymore.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>With the new Hyper-V integration code present since the 3.5 and 3.8 kernels which Ubuntu 12.04 and 13.04 uses, the Linux kernel can use a synthetic clock source that Hyper-V provides just like KVM does. Even the CentOS 6.4 kernel uses a synthetic clock source too as the guys at Red Hat back ported a lot of changes from the upstream Hyper-V code back to their kernel.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If the synthetic clock source doesn’t work out for you, there is always the good old mod_timerfd to fix issues like this.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] <b>On Behalf Of </b>Stanislav Sinyagin<br><b>Sent:</b> Tuesday, August 27, 2013 8:16 AM<br><b>To:</b> FreeSWITCH Users Help<br><b>Subject:</b> Re: [Freeswitch-users] freeswitch on ubuntu VM on hyper-v<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>You will likely have audio distortions. OpenVZ or Xen virtualization should do a better job (myself, I run two production servers under XEN and never had problems with audio quality).<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Search in Google for FreeSWITCH or Asterisk under Hyper-V, and you will see the whole spectrum of opinions, and no real detailed test results.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt;margin-left:3.75pt;margin-top:3.75pt;margin-bottom:5.0pt'><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><div><div><div><div class=MsoNormal align=center style='text-align:center;background:white'><span style='color:black'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> lloyd thomas <<a href="mailto:lloydie.t@gmail.com">lloydie.t@gmail.com</a>><br><b>To:</b> freeswitch-users <<a href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a>> <br><b>Sent:</b> Tuesday, August 27, 2013 3:10 PM<br><b>Subject:</b> [Freeswitch-users] freeswitch on ubuntu VM on hyper-v</span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p><div id=yiv6785765136><div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='color:black'>I just need a little advice setting up a freeswitch VM box shared with a http VM on hyper-v host and was wondering whether there are any gotcha's that I should be aware of.<br><br><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>I expect about 50 devices to be registered on it at any time and not expecting a high volume of calls.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>It will be a fairly low spec dual core machine (dell sc1425), with 8gb ram<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Thanks in advance for any advice.<o:p></o:p></span></p></div></div></div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div></div></div></blockquote></div></div></div></div></body></html>