<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">There are buffers in here… so as long as we are always a chunk ahead in the conference, the timer accuracy shouldn't matter unless there is drift over time. The only way it would cause distortion would be if there was not a packet ready to write to the t1 when it needed. How frequent are the blips, and are they at a fairly regular schedule? <div><br><div><div>On Sep 25, 2013, at 5:36 AM, Bob Hartwig <<a href="mailto:bobjectsfreeswitch@gmail.com">bobjectsfreeswitch@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">Hello Anthony,<div><br></div><div><div class="gmail_extra"><div class="gmail_quote">On Tue, Sep 24, 2013 at 11:45 PM, Anthony Minessale <span dir="ltr"><<a href="mailto:anthony.minessale@gmail.com" target="_blank">anthony.minessale@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">You could test your theory more by making an extension like this:<div><br></div><div><div> <extension name="test"></div>
<div> <condition field="destination_number" expression="^1234$"></div>
<div> <action application="answer"/></div><div> <action application="set" data="time_name=soft"/><br></div><div> <action application="playback" data="tone_stream://%(251,0,1004);loops=-1"/></div>
<div> </condition></div><div> </extension></div></div><div><br></div><div><br></div><div>This would produce a timer and use it for playback instead of the read stream.</div><div><br></div></div></blockquote>
<div><br></div><div>Yes, I did just that yesterday, and the playback is similarly distorted then. That experiment is what made me pretty certain that the mod_conference timer was my culprit.</div><div><br></div><div><br>
</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div></div><div>If you wanted to make a timer you could use from the TDM you would have to make a FS module with raw dahdi code in it that opened a socket and clocked off of it and pushed it out to the channels like how some of the other timer modules do but I think if you are on a modern kernel with timerfd that this should not be necessary. If you are on an older platform like centos5 you could try the old -heavy-timer command line arg.</div>
<div><br></div></div></blockquote><div><br></div><div>-heavy-timer is new to me, thanks for the tip. My problem is not timer accuracy, but timer synchronization with the T1 clock. But grepping for heavy-timer may give me some insight on how to replace the main timer if it turns out that I need to go that way.</div>
<div><br></div><div> Thanks,</div><div> Bob</div></div></div></div></div></blockquote></div><br></div></body></html>