<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1418763550147_19829" dir="ltr"><span>Hi Manpreet,</span></div><div id="yui_3_16_0_1_1418763550147_19829" dir="ltr"><span><br></span></div><div id="yui_3_16_0_1_1418763550147_19829" dir="ltr"><span id="yui_3_16_0_1_1418763550147_20126">Then perhaps in those cases you need to increase ptime together with reducing bitrate.</span></div><div id="yui_3_16_0_1_1418763550147_19918" dir="ltr">You could also disable FEC &nbsp;to make your packets smaller.</div><div id="yui_3_16_0_1_1418763550147_19918"><br></div><div id="yui_3_16_0_1_1418763550147_19918" dir="ltr">Regards,</div><div dir="ltr" id="yui_3_16_0_1_1418763550147_19917">Dragos</div><div dir="ltr" id="yui_3_16_0_1_1418763550147_19916"><br></div>  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1418763550147_19832"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1418763550147_19831"> <div dir="ltr" id="yui_3_16_0_1_1418763550147_19830"> <hr size="1" id="yui_3_16_0_1_1418763550147_20463">  <font size="2" face="Arial" id="yui_3_16_0_1_1418763550147_19833"> <b><span style="font-weight:bold;">From:</span></b> Manpreet Singh &lt;manpreets7@gmail.com&gt;<br> <b><span style="font-weight: bold;">To:</span></b> Dragos Oancea &lt;droancea@yahoo.com&gt; <br><b><span style="font-weight: bold;">Cc:</span></b> "opus@xiph.org" &lt;opus@xiph.org&gt; <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, December 16, 2014 8:41 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [opus] Estimating bitrate during a real-time voip call<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1418763550147_20238"><br><div id="yiv2468213670"><div id="yui_3_16_0_1_1418763550147_20240"><div dir="ltr" id="yui_3_16_0_1_1418763550147_20239">Hi Dragos,<div id="yui_3_16_0_1_1418763550147_20341"><br clear="none"></div><div id="yui_3_16_0_1_1418763550147_20342">The issue is that not all packet loss maybe congestion related. Often, reducing bitrate seems to have no impact on improving packet loss.<div id="yui_3_16_0_1_1418763550147_20343"><br clear="none"></div><div id="yui_3_16_0_1_1418763550147_20462">Thanks,</div><div id="yui_3_16_0_1_1418763550147_20344">Manpreet.</div><div class="qtdSeparateBR"><br><br></div><div class="yiv2468213670yqt6873132902" id="yiv2468213670yqt44890"><div id="yui_3_16_0_1_1418763550147_20345"><br clear="none"><div class="yiv2468213670gmail_extra" id="yui_3_16_0_1_1418763550147_20347"><br clear="none"><div class="yiv2468213670gmail_quote" id="yui_3_16_0_1_1418763550147_20346">On Tue, Dec 16, 2014 at 2:09 AM, Dragos Oancea <span dir="ltr">&lt;<a rel="nofollow" shape="rect" ymailto="mailto:droancea@yahoo.com" target="_blank" href="mailto:droancea@yahoo.com">droancea@yahoo.com</a>&gt;</span> wrote:<blockquote class="yiv2468213670gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;" id="yui_3_16_0_1_1418763550147_20351"><div id="yui_3_16_0_1_1418763550147_20350"><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_1_1418763550147_20349"><div dir="ltr" id="yui_3_16_0_1_1418763550147_20348"><span>Hi</span></div><div dir="ltr" id="yui_3_16_0_1_1418763550147_20461"><span><br clear="none"></span></div><div dir="ltr" id="yui_3_16_0_1_1418763550147_20353"><span id="yui_3_16_0_1_1418763550147_20352">You can start a VOIP call with 50 kbps bitrate and reduce the bitrate if there is packet loss.&nbsp; You know if there's packet loss if you receive RTCP .&nbsp;</span></div><div dir="ltr" id="yui_3_16_0_1_1418763550147_20354"><span id="yui_3_16_0_1_1418763550147_20956">Linphone does this .</span></div><div dir="ltr" id="yui_3_16_0_1_1418763550147_20460"><span><br clear="none"></span></div><div dir="ltr" id="yui_3_16_0_1_1418763550147_20356"><span id="yui_3_16_0_1_1418763550147_20355">Regards,</span></div><div dir="ltr" id="yui_3_16_0_1_1418763550147_20358"><span id="yui_3_16_0_1_1418763550147_20357">Dragos Oancea</span></div><br clear="none">  <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"> <hr size="1">  <font face="Arial"> <b><span style="font-weight:bold;">From:</span></b> Manpreet Singh &lt;<a rel="nofollow" shape="rect" ymailto="mailto:manpreets7@gmail.com" target="_blank" href="mailto:manpreets7@gmail.com">manpreets7@gmail.com</a>&gt;<br clear="none"> <b><span style="font-weight:bold;">To:</span></b> <a rel="nofollow" shape="rect" ymailto="mailto:opus@xiph.org" target="_blank" href="mailto:opus@xiph.org">opus@xiph.org</a> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Tuesday, December 16, 2014 7:54 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> [opus] Estimating bitrate during a real-time voip call<br clear="none"> </font> </div> <div><div><div class="yiv2468213670h5"><br clear="none"><div><div dir="ltr">Hi,<div><br clear="none"></div><div>Although this maybe considered out of scope here, but I'll ask anyway.</div><div><br clear="none"></div><div>Opus has remarkable flexibility for changing encoder bitrate during a call. Are there any suggestions about how bandwidth/capacity between the two endpoints can be measured/estimated during a call so that the outgoing bitrate can be adjusted accordingly?</div><div><br clear="none"></div><div>Thanks,</div><div>Manpreet.</div><div><br clear="none"></div></div></div><br clear="none"></div></div>_______________________________________________<br clear="none">opus mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:opus@xiph.org" target="_blank" href="mailto:opus@xiph.org">opus@xiph.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://lists.xiph.org/mailman/listinfo/opus">http://lists.xiph.org/mailman/listinfo/opus</a><br clear="none"><br clear="none"><br clear="none"></div> </div> </div>  </div></div></blockquote></div></div></div></div></div></div></div></div><br><br></div> </div> </div>  </div></body></html>