<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hey there,<div class="">Thanks for this extensive response. I am not sure I got everything, but I'll try to answer what I can.</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><span class="" style="float: none; display: inline !important;">Why would you say opus@8000@20i does not sound very good ? What do you</span><br class=""><span class="" style="float: none; display: inline !important;">mean exactly ? Your call quality is bad or you mean you don't like the</span><br class=""><span class="" style="float: none; display: inline !important;">fact that the sampling rate is low ?</span><br class=""></blockquote><div class="">Opus at 8khz doesn't give you the same fidelity as PCM at 8khz. You definitely hear the compression. However, Opus at 48khz transcoded into PCMU / PCMA is hardly noticeable. Therefore, I wanted to find a decent compromise, one that would save bandwidth and CPU for calls that don't require a full band audio.</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><span class="" style="float: none; display: inline !important;">You can play with the sampling rates by setting maxplaybackrate and</span><br class=""><span class="" style="float: none; display: inline !important;">sprop_maxcapurerate and enabling asymmetric_samplerates (which is an</span><br class=""><span class="" style="float: none; display: inline !important;">experimental feature so far) in your opus.conf.xml .</span><br class=""></blockquote>That sounds very interesting, however I do not want to impose global limitations as many of my Opus calls are full band calls. Would these settings help me work on a per call basis?</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><span class="" style="float: none; display: inline !important;">FS does not have 12 khz or 24 khz because they are not much used for</span><br class=""><span class="" style="float: none; display: inline !important;">Voip. As for opus @ 16 khz perhaps it will be added.</span></blockquote>I guess this reconnects with my observation above. The idea would be to use something slightly higher than 8khz, yet not as intensive as 48khz, just to get a clearer call for "PSTN like" connections.</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><span class="" style="float: none; display: inline !important;">But if you use opus @ 48 khz and you just change maxaveragebitrate and</span><br class=""><span class="" style="float: none; display: inline !important;">maxplaybackrate accordingly you should get only WIDEBAND from the</span><br class=""><span class="" style="float: none; display: inline !important;">encoder anyway .</span><br class=""></blockquote>Not sure I got that right. Could you elaborate more? Can this work on a per call basis?</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><span class="" style="float: none; display: inline !important;">As for the issue why codec settings cannot be set from FS's dialplan , I</span><br class=""><span class="" style="float: none; display: inline !important;">think its a missing feature that affects other audio codecs too and I</span><br class=""><span class="" style="float: none; display: inline !important;">think it would be very useful.</span><br class=""></blockquote>Yes, absolutely. This would definitely help a lot. Not only on the FS side, but also on how to involve the Opus stack on the client side. </div><div class=""><br class=""></div><div class="">As far as an Opus manual, I also love the idea and can't wait to read it.</div><div class=""><br class=""></div><div class="">Thanks again for this response,</div><div class="">Emrah</div><div><blockquote type="cite" class=""><div class="">On Oct 14, 2016, at 2:27 PM, Dragos Oancea <<a href="mailto:dragos.oancea@athonet.com" class="">dragos.oancea@athonet.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Hi</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Why would you say opus@8000@20i does not sound very good ? What do you</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">mean exactly ? Your call quality is bad or you mean you don't like the</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">fact that the sampling rate is low ?</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">You can play with the sampling rates by setting maxplaybackrate and</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">sprop_maxcapurerate and enabling asymmetric_samplerates (which is an</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">experimental feature so far) in your opus.conf.xml .</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">FS does not have 12 khz or 24 khz because they are not much used for</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Voip. As for opus @ 16 khz perhaps it will be added.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">But if you use opus @ 48 khz and you just change maxaveragebitrate and</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">maxplaybackrate accordingly you should get only WIDEBAND from the</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">encoder anyway .</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">The decoder should decode at any sample rate.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">We're working on a document (sort of manual) for the Opus module and</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">hopefully it will be released soon.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">As for the issue why codec settings cannot be set from FS's dialplan , I</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">think its a missing feature that affects other audio codecs too and I</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">think it would be very useful.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">We needed opus@8000hz for transcoding and I tried to explain some things</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">here (see my comment at the bottom of the page ):</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><a href="https://freeswitch.org/confluence/display/FREESWITCH/mod_opus" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">https://freeswitch.org/confluence/display/FREESWITCH/mod_opus</a><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Basically if you do heavy transcoding to PCMA / PCMU which is 8000 hz</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">you'll want to avoid resampling 48 khz <-> 8 khz - we did tests and by</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">avoiding resampling we were saving 20-30 % CPU .</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Regards,</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Dragos</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">On 14/10/2016 14:02, Emrah wrote:</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">Hi there,<br class="">Revisiting this issue. I see that I can set my Opus codec with<br class="">Opus@8000@20i, but 8khz seems to be the only alternative profile I can<br class="">use. I see only 2 extreme options when the module is loaded or unloaded<br class="">that it's either 48khz, mono or stereo and packet size, or 8khz, mono or<br class="">stereo and packet size. Can someone clarify why there is nothing in<br class="">between? And what exactly this setting does? Opus@8000h@20i definitely<br class="">doesn't sound very good. I'd rather have a compromise for tough network<br class="">conditions.<br class="">Since these are parameters I can dynamically set on my dialplan, the<br class="">question then becomes why can't I fully manipulate my Opus stack from<br class="">the dialplan?<br class=""><br class="">Thanks!<br class=""><blockquote type="cite" class="">On Jun 2, 2015, at 6:23 AM, Emrah <<a href="mailto:lists@kavun.ch" class="">lists@kavun.ch</a><br class=""><<a href="mailto:lists@kavun.ch" class="">mailto:lists@kavun.ch</a>>> wrote:<br class=""><br class="">Hi there,<br class="">@Mike: yes, but in a commonsensical approach the Opus library on the<br class="">client's side would resample and therefore optimize the codec and the<br class="">bandwidth accordingly up to FS.<br class="">@Julien, I saw the setting for Opus globally, but it defeats the<br class="">purpose. I don't want to limit the bandwidth of Opus for all<br class="">instances. I'd like to optimize Opus on a per call basis.<br class=""><br class="">Thanks for the replies<br class=""><blockquote type="cite" class="">On May 31, 2015, at 2:13 PM, Michael Jerris <<a href="mailto:mike@jerris.com" class="">mike@jerris.com</a><br class=""><<a href="mailto:mike@jerris.com" class="">mailto:mike@jerris.com</a>>> wrote:<br class=""><br class="">Side note, opening at the different rate I believe just makes the<br class="">opus library do the re sampling instead of FreeSWITCH.<br class=""><br class="">On Sunday, May 31, 2015, Julien Chavanton <<a href="mailto:jchavanton@gmail.com" class="">jchavanton@gmail.com</a><br class=""><<a href="mailto:jchavanton@gmail.com" class="">mailto:jchavanton@gmail.com</a>>> wrote:<br class=""><br class=""> Hi Emrah,<br class=""><br class=""> The settings exist but they are not available from the dialplan,<br class=""> right now they can only be set globally .<br class=""> <a href="https://freeswitch.org/confluence/display/FREESWITCH/mod_opus" class="">https://freeswitch.org/confluence/display/FREESWITCH/mod_opus</a><br class=""><br class=""> You can control the bandwidth using maxplaybackrate and<br class=""> maxplaybackrate this will control the local encoder and also adds<br class=""> the corresponding FMTP parameters to the SDP to be used by the<br class=""> remote encoder (if it does implement the following draft, the<br class=""> draft is evolving but I think it as not changed)<br class=""><br class=""> <a href="https://tools/" class="">https://tools</a><br class=""> <<a href="https://tools/" class="">https://tools/</a>>.<a href="http://ietf.org/html/draft-ietf-payload-rtp-opus-11" class="">ietf.org/html/draft-ietf-payload-rtp-opus-11</a><br class=""><br class=""> Maybe something like :<br class=""><br class=""> maxaveragebitrate 24000<br class=""> maxplaybackrate 8000<br class=""><br class=""> The discussion was getting slightly more complicated when we<br class=""> where discussing about unnecessary resampling this was not a<br class=""> problem but it was just adding extra load on the server.<br class=""><br class=""> On Sun, May 31, 2015 at 6:09 AM, Emrah <<a href="mailto:lists@kavun.ch" class="">lists@kavun.ch</a><br class=""> <javascript:_e(%7B%7D,'cvml','<a href="mailto:lists@kavun.ch" class="">lists@kavun.ch</a>');>> wrote:<br class=""><br class=""> Hi list,<br class=""><br class=""> I re-read FS6947 and don't understand how this problematic<br class=""> was addressed and the issue fixed.<br class=""> The scope is simple. There should be a setting in the<br class=""> dialplan that allows downsampling of Opus for applications<br class=""> that do not require the 48khz / 2 channels framework. I.e.:<br class=""> terminating to the PSTN with Opus to take advantage of low<br class=""> bandwidth and great PLC.<br class=""> There seems to be a lot of confusion around bandwidth in<br class=""> general there. It doesn't matter if the internal clock of the<br class=""> device is always sampling at 48khz / 2ch. There are settings<br class=""> that can facilitate a lower bandwidth consumption for<br class=""> particular use cases, and it seems the reason it is not being<br class=""> implemented in FS is just a matter of being confused about<br class=""> the intent of the 48khz 2ch base.<br class=""> Please revisit this issue. FS should allow tuning of Opus<br class=""> audio / network bandwidth in the dialplan. It would optimize<br class=""> greatly lots of use cases.<br class=""> If I'm calling the PSTN, I'd rather have my client downsample<br class=""> and stream at a lower bandwidth, even if my audio capture<br class=""> would still be at 48khz / 2ch as per the RFC, and save on<br class=""> bandwidth, than transcode the full 48khz spectrum into PCM on<br class=""> my FS and minimize processing power on the client's side.<br class=""><br class=""> Jira here: <a href="https://freeswitch.org/jira/browse/FS-6947" class="">https://freeswitch.org/jira/browse/FS-6947</a><br class=""><br class=""> Emrah<br class=""> _________________________________________________________________________<br class=""> Professional FreeSWITCH Consulting Services:<br class=""> <a href="mailto:consulting@freeswitch.org" class="">consulting@freeswitch.org</a><br class=""> <javascript:_e(%7B%7D,'cvml','<a href="mailto:consulting@freeswitch.org" class="">consulting@freeswitch.org</a>');><br class=""> <a href="http://www.freeswitchsolutions.com/" class="">http://www.freeswitchsolutions.com</a><br class=""> <<a href="http://www.freeswitchsolutions.com/" class="">http://www.freeswitchsolutions.com/</a>><br class=""><br class=""> Official FreeSWITCH Sites<br class=""> <a href="http://www.freeswitch.org/" class="">http://www.freeswitch.org</a><span class="Apple-converted-space"> </span><<a href="http://www.freeswitch.org/" class="">http://www.freeswitch.org/</a>><br class=""> <a href="http://confluence.freeswitch.org/" class="">http://confluence.freeswitch.org</a><br class=""> <<a href="http://confluence.freeswitch.org/" class="">http://confluence.freeswitch.org/</a>><br class=""> <a href="http://www.cluecon.com/" class="">http://www.cluecon.com</a><span class="Apple-converted-space"> </span><<a href="http://www.cluecon.com/" class="">http://www.cluecon.com/</a>><br class=""><br class=""> FreeSWITCH-users mailing list<br class=""> <a href="mailto:FreeSWITCH-users@lists.freeswitch.org" class="">FreeSWITCH-users@lists.freeswitch.org</a><br class=""> <javascript:_e(%7B%7D,'cvml','<a href="mailto:FreeSWITCH-users@lists.freeswitch.org" class="">FreeSWITCH-users@lists.freeswitch.org</a>');><br class=""> <a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" class="">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br class=""> UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" class="">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br class=""> <a href="http://www.freeswitch.org/" class="">http://www.freeswitch.org</a><span class="Apple-converted-space"> </span><<a href="http://www.freeswitch.org/" class="">http://www.freeswitch.org/</a>><br class=""><br class=""><br class="">_________________________________________________________________________<br class="">Professional FreeSWITCH Consulting Services:<br class=""><a href="mailto:consulting@freeswitch.org" class="">consulting@freeswitch.org</a><span class="Apple-converted-space"> </span><<a href="mailto:consulting@freeswitch.org" class="">mailto:consulting@freeswitch.org</a>><br class=""><a href="http://www.freeswitchsolutions.com" class="">http://www.freeswitchsolutions.com</a><br class=""><br class="">Official FreeSWITCH Sites<br class="">http://www.freeswitch.org<br class="">http://confluence.freeswitch.org<br class="">http://www.cluecon.com<br class=""><br class="">FreeSWITCH-users mailing list<br class="">FreeSWITCH-users@lists.freeswitch.org<br class="">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<br class="">UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br class="">http://www.freeswitch.org<br class=""></blockquote><br class=""></blockquote><br class=""><br class=""><br class="">_________________________________________________________________________<br class="">Professional FreeSWITCH Consulting Services:<span class="Apple-converted-space"> </span><br class=""><a href="mailto:consulting@freeswitch.org" class="">consulting@freeswitch.org</a><br class="">http://www.freeswitchsolutions.com<br class=""><br class="">Official FreeSWITCH Sites<br class="">http://www.freeswitch.org<br class="">http://confluence.freeswitch.org<br class="">http://www.cluecon.com<br class=""><br class="">FreeSWITCH-users mailing list<br class="">FreeSWITCH-users@lists.freeswitch.org<br class="">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<br class="">UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br class="">http://www.freeswitch.org<br class=""><br class=""></blockquote><br style="font-family: Helvetica; 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