Improve the kernel and in your situation you will most likely improve your audio. You can't expect perfect audio when the thread handling RTP is waking up later than its designated time (after sleeping for the codec timing). The switch tests for the possibility of this issue on startup when it calibrates your clock offset ... thus it warned you :)<br>
<br>"-nocal" will simply skip the process of recognizing and warning that your kernel timer is slow, but will not alter performance in your situation (unless I am missing something)<br><br><div class="gmail_quote">
On Fri, Dec 17, 2010 at 4:30 PM, Rafqat . <span dir="ltr"><<a href="mailto:rafonline@hotmail.com" target="_blank">rafonline@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<br>I will try the dev snapshot. <br><br>cheers<br><br>Raf<br><br>> Date: Fri, 17 Dec 2010 15:28:49 -0600<br>> From: <a href="mailto:anthony.minessale@gmail.com" target="_blank">anthony.minessale@gmail.com</a><div>
<br>> To: <a href="mailto:freeswitch-users@lists.freeswitch.org" target="_blank">freeswitch-users@lists.freeswitch.org</a><br></div>> Subject: Re: [Freeswitch-users] audio quality issue<div><div></div><div>
<br>> <br>> if you insist to remain on 1.0.6 try it with -vm -nocal cmd line options<br>> as i already stated you should try the development snapshot<br>> <br>> On Fri, Dec 17, 2010 at 3:22 PM, Rafqat . <<a href="mailto:rafonline@hotmail.com" target="_blank">rafonline@hotmail.com</a>> wrote:<br>
> ><br>> > btw. I have no audio issues when making calls between phones through<br>> > freeswitch (voice quality is very good).<br>> ><br>> ><br>> ><br>> > ________________________________<br>
> > From: <a href="mailto:rafonline@hotmail.com" target="_blank">rafonline@hotmail.com</a><br>> > To: <a href="mailto:freeswitch-users@lists.freeswitch.org" target="_blank">freeswitch-users@lists.freeswitch.org</a><br>
> > Date: Fri, 17 Dec 2010 21:19:11 +0000<br>> > Subject: [Freeswitch-users] audio quality issue<br>> ><br>> ><br>> ><br>> > Hi,<br>> ><br>> > I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server).<br>
> > I feel as if the audio quality is not as good as what it should be (6-7 out<br>> > of 10). This is apparent in calling the default voicemail IVR, sometimes I<br>> > have issues leaving a message, sometimes I hear some weird noises. However,<br>
> > I have no issues with the quality of the recorded voicemail message I leave,<br>> > it sounds fine on playback.<br>> ><br>> > Is this an issue with my phones (Flexor 500)? I have a softphone which<br>
> > doesn't seem as bad but still has issues.<br>> ><br>> > I also get the following message on startup of freeswitch:<br>> ><br>> > 2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of<br>
> > 4000 microseconds detected!<br>> > Do you have your kernel timer frequency set to lower than 1,000Hz? You may<br>> > experience audio problems.<br>> ><br>> > I assume its related.<br>> ><br>
> > Any help will be much appreciated.<br>> ><br>> > Cheers<br>> ><br>> > Raf<br>> ><br>> > _______________________________________________ FreeSWITCH-users mailing<br>> > list <a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
> > <a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>> > UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
> > <a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>> > _______________________________________________<br>> > FreeSWITCH-users mailing list<br>> > <a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
> > <a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>> > UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
> > <a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>> ><br>> ><br>> <br>> <br>> <br>> -- <br>> Anthony Minessale II<br>> <br>> FreeSWITCH <a href="http://www.freeswitch.org/" target="_blank">http://www.freeswitch.org/</a><br>
> ClueCon <a href="http://www.cluecon.com/" target="_blank">http://www.cluecon.com/</a><br>> Twitter: <a href="http://twitter.com/FreeSWITCH_wire" target="_blank">http://twitter.com/FreeSWITCH_wire</a><br>> <br>
> AIM: anthm<br>
> <a href="mailto:MSN%3Aanthony_minessale@hotmail.com" target="_blank">MSN:anthony_minessale@hotmail.com</a><br>> GTALK/JABBER/<a href="mailto:PAYPAL%3Aanthony.minessale@gmail.com" target="_blank">PAYPAL:anthony.minessale@gmail.com</a><br>
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