<div dir="ltr">Icecast is not designed for low-latency and realtime audio. Its designed for higher quality reliable audio. The servers and the client libs both use latency and buffering to guarantee this. There are some techniques to reduce the buffering on at least the FS side but then you will start getting skips and resets if you miss any packets.<div>
<br></div><div>This comes up all the time when people first try doing this. Either you need to just accept the delay since most people will not even know its there or use some other method.</div><div><br></div><div><br></div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Aug 14, 2013 at 5:12 PM, Stephen Dame <span dir="ltr"><<a href="mailto:sdame@207me.com" target="_blank">sdame@207me.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Did you restart the freeswitch server after changes to the config files, I’m not sure 100% if reloadxml resets the conference settings. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Also I use some flash based players, I think there where client settiings for buffering. Can you set buffer in HTML tag?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Stephen<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">207 Technology Group Inc. <a href="tel:1-888-229-9756" value="+18882299756" target="_blank">1-888-229-9756</a> skype: Stephen_Dame<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a> [mailto:<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a>] <b>On Behalf Of </b>Jorge Núñez<br>
<b>Sent:</b> Wednesday, August 14, 2013 4:18 PM</span></p><div><div class="h5"><br><b>To:</b> FreeSWITCH Users Help<br><b>Subject:</b> Re: [Freeswitch-users] Mod_shout using with icecast Big delay<u></u><u></u></div></div>
<p></p><div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal">Hi thanks, I set your configuration but nothing changed, I reduced the burst size and it takes me just 11s and also I tried with 8k, 16k and 32k and nothing change<u></u><u></u></p>
<div><p class="MsoNormal"><u></u> <u></u></p></div><div><div><p class="MsoNormal"> <limits><u></u><u></u></p></div><div><p class="MsoNormal"> <clients>100</clients><u></u><u></u></p></div><div>
<p class="MsoNormal"> <sources>10</sources><u></u><u></u></p></div><div><p class="MsoNormal"> <threadpool>5</threadpool><u></u><u></u></p></div><div><p class="MsoNormal"> <queue-size>524288</queue-size><u></u><u></u></p>
</div><div><p class="MsoNormal"> <!-- <queue-size>524288</queue-size> --><u></u><u></u></p></div><div><p class="MsoNormal"> <client-timeout>30</client-timeout><u></u><u></u></p>
</div><div><p class="MsoNormal"> <header-timeout>15</header-timeout><u></u><u></u></p></div><div><p class="MsoNormal"> <source-timeout>10</source-timeout><u></u><u></u></p></div><div>
<p class="MsoNormal"> <!-- If enabled, this will provide a burst of data when a client <u></u><u></u></p></div><div><p class="MsoNormal"> first connects, thereby significantly reducing the startup <u></u><u></u></p>
</div><div><p class="MsoNormal"> time for listeners that do substantial buffering. However,<u></u><u></u></p></div><div><p class="MsoNormal"> it also significantly increases latency between the source<u></u><u></u></p>
</div><div><p class="MsoNormal"> client and listening client. For low-latency setups, you<u></u><u></u></p></div><div><p class="MsoNormal"> might want to disable this. --><u></u><u></u></p></div>
<div><p class="MsoNormal"> <burst-on-connect>0</burst-on-connect><u></u><u></u></p></div><div><p class="MsoNormal"> <!-- same as burst-on-connect, but this allows for being more<u></u><u></u></p>
</div><div><p class="MsoNormal"> specific on how much to burst. Most people won't need to<u></u><u></u></p></div><div><p class="MsoNormal"> change from the default 64k. Applies to all mountpoints <u></u><u></u></p>
</div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"> --><u></u><u></u></p></div><div><p class="MsoNormal"> <burst-size>4096</burst-size><u></u><u></u></p></div><div><p class="MsoNormal">
</limits><u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Regards<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">
Jorge<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p><div><p class="MsoNormal">2013/8/14 Stephen Dame <<a href="mailto:sdame@207me.com" target="_blank">sdame@207me.com</a>><u></u><u></u></p>
<blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Jorge, </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Play around with the burst size and queue size… here is my xml config around 3-4 second delay from 16k freeswitch conference. </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">To small a buffer and the players disconnect… Im also running icecast on same server.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><icecast></span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <limits></span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <clients>100</clients></span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <sources>10</sources></span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <threadpool>5</threadpool></span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <queue-size>524288</queue-size></span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <client-timeout>30</client-timeout></span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <header-timeout>15</header-timeout></span><u></u><u></u></p><p class="MsoNormal">
<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <source-timeout>10</source-timeout></span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <burst-on-connect>1</burst-on-connect></span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <!-- same as burst-on-connect, but this allows for being more</span><u></u><u></u></p><p class="MsoNormal">
<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> specific on how much to burst. Most people won't need to</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> change from the default 64k. Applies to all mountpoints --></span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <burst-size>65535</burst-size></span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </limits></span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Regards,</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Stephen</span><u></u><u></u></p></div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
<div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a> [mailto:<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a>] <b>On Behalf Of </b>Ken Rice<br>
<b>Sent:</b> Wednesday, August 14, 2013 12:35 PM<br><b>To:</b> FreeSWITCH Users Help<br><b>Subject:</b> Re: [Freeswitch-users] Mod_shout using with icecast Big delay</span><u></u><u></u></p></div></div><div><div><p class="MsoNormal">
<u></u><u></u></p><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">You have to keep in mind that icecast itself has a fair bit of buffering involved with it and theres not a lot you can do about that<br>
<br><br>On 8/14/13 11:30 AM, "Jorge Núñez" <<a href="http://jorgefren12@gmail.com" target="_blank">jorgefren12@gmail.com</a>> wrote:</span><u></u><u></u></p><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">Hi I am using mod_shout to send a conference call to icecast and hear it from a tag audio in html5 in realtime, but it has a big delay like 12 seconds. How can I reduce the latency of the audio sent from freeswitch or what can I do to improve this.<br>
<br>Regards<br><br>Jorge</span><u></u><u></u></p><div class="MsoNormal" align="center" style="text-align:center"><span style="font-size:11.0pt;font-family:"Courier New""><hr size="3" width="95%" align="center"></span></div>
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</blockquote><p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas"><br></span><span style="font-size:11.0pt;font-family:"Courier New"">-- <br>Ken<br><u><span style="color:blue"><a href="http://www.FreeSWITCH.org" target="_blank">http://www.FreeSWITCH.org</a><br>
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