<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>That is correct its always represented as 8k in the sdp<br><br>Sent from my iPhone</div><div><br>On Oct 6, 2015, at 5:38 PM, Oleg Stolyar <<a href="mailto:olegstolyar@gmail.com">olegstolyar@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Yeah but Chrome seems to only be offering G722 at 8000<div><div style="color:rgb(0,0,0);font-size:12.8px">a=rtpmap:9 G722/8000</div></div><div style="color:rgb(0,0,0);font-size:12.8px"><br></div><div>Am I reading this correctly?</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 6, 2015 at 3:32 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">G722 is actually 16khz which can pass for hd<div>isac will do higher sample rates as well like 16 and 32 but it will probably also be cpu intensive.</div><div><br></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 6, 2015 at 5:17 PM, Giovanni Maruzzelli <span dir="ltr"><<a href="mailto:gmaruzz@gmail.com" target="_blank">gmaruzz@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">With browsers/webrtc I believe your choice is only between opus and g711<br></p>
<p dir="ltr">sent from my mobile,<br>
Giovanni Maruzzelli<br>
cell: +39 347 266 56 18</p><div><div>
<div class="gmail_quote">On Oct 7, 2015 12:04 AM, "Oleg Stolyar" <<a href="mailto:olegstolyar@gmail.com" target="_blank">olegstolyar@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">My endpoint is Chrome/WebRTC. Here is what the current version sends in the the INVITE. <div><br></div><div>Doesn't look like G722/16000 is there. How is ISAC in terms of CPU consumption?</div><div><br><div><div>a=rtpmap:111 opus/48000/2</div><div>a=fmtp:111 minptime=10; useinbandfec=1</div><div>a=rtpmap:103 ISAC/16000</div><div>a=rtpmap:104 ISAC/32000</div><div>a=rtpmap:9 G722/8000</div><div>a=rtpmap:0 PCMU/8000</div><div>a=rtpmap:8 PCMA/8000</div><div>a=rtpmap:106 CN/32000</div><div>a=rtpmap:105 CN/16000</div><div>a=rtpmap:13 CN/8000</div><div>a=rtpmap:126 telephone-event/8000</div></div><div><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 6, 2015 at 1:49 PM, Stanislav Sinyagin <span dir="ltr"><<a href="mailto:ssinyagin@gmail.com" target="_blank">ssinyagin@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"><div>If your endpoint supports it, G722@16000h gives a very decent voice quality. SILK also supports 16KHz.<br><br></div>here's some information related to codec complexity:<br><a href="https://txlab.wordpress.com/2015/04/10/testing-freeswitch-performance-on-scaleway-c1/" target="_blank">https://txlab.wordpress.com/2015/04/10/testing-freeswitch-performance-on-scaleway-c1/</a><br><br><br></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 6, 2015 at 10:40 PM, Oleg Stolyar <span dir="ltr"><<a href="mailto:olegstolyar@gmail.com" target="_blank">olegstolyar@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">Thanks guys!<div><br></div><div>Anthony, using your suggestion means that I won't have HD voice, correct? HD voice is the primary reason I am considering OPUS instead of G.722.</div><div><br></div><div>Is there some codec/setting that will let me have HD voice for less CPU and perhaps more bandwidth?</div><div><br></div><div>It's not a must - I can scale up if needed, just wondering.</div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 6, 2015 at 1:35 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">typo: <span style="font-size:12.8px">opus@8000h@20i</span></div><div class="gmail_extra"><div><div><br><div class="gmail_quote">On Tue, Oct 6, 2015 at 3:33 PM, Stanislav Sinyagin <span dir="ltr"><<a href="mailto:ssinyagin@gmail.com" target="_blank">ssinyagin@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">OPUS is an expensive codec, so any conversion between OPUS and<br>
uncompressed audio is CPU-consuming. I don;t think that resampling<br>
would play much of a role in CPU consumption.<br>
<div><div><br>
On Tue, Oct 6, 2015 at 10:29 PM, Oleg Stolyar <<a href="mailto:olegstolyar@gmail.com" target="_blank">olegstolyar@gmail.com</a>> wrote:<br>
> Hi guys,<br>
><br>
> I have a bunch of conferences on my FS. Users are either G.711/8000 or<br>
> G.722/8000. Conference sample rate is set to 8000.<br>
><br>
> When I switched some users to OPUS instead, the CPU consumption jumped 3-4<br>
> times even though the conference rate is still 8000. Is this expected?<br>
><br>
> I was hoping to be able to save some CPU by setting the conference sample<br>
> rate to auto (so it only used high-quality sampling for users that can<br>
> support it) but it seems it won't work. Any ideas?<br>
><br>
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