<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=""><meta http-equiv="content-type" content="text/html; charset=utf-8" class=""><div dir="auto" class=""><div class="">Examples of OPUS with 30% of LOSS with FEC on <a href="http://opus-codec.org/examples/" class="">http://opus-codec.org/examples/</a></div><div class="">Sounds too perfect. Why I can't achieve even similar quality on asterisk with built codec by digium?</div><div class="">To simulate 30% packet loss I use:</div><div class=""><pre class="code" style="margin-top: 0px; margin-bottom: 1.4em; padding: 0.7em 1em; direction: ltr; box-shadow: rgb(204, 204, 204) 0px 0px 0.5em inset; border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 2px; border-bottom-left-radius: 2px; overflow: auto; word-wrap: normal; border: 1px solid rgb(204, 204, 204);"><font face="UICTFontTextStyleBody" class=""><span style="white-space: normal; background-color: rgba(255, 255, 255, 0);" class=""> # tc qdisc add dev eth0 root netem delay 100ms loss 30%</span></font></pre>But even with 15-20% of loss it's almost impossible to talk.</div><div class="">Tried different bitrates, result is always same. </div><div class="">If I do PESQ predicted MOS of degraded audio (recorded with packet loss) in compare to original: 1.025</div><div class="">Horrible results, horrible sound.</div><div class=""><br class=""></div><div class="">Anyone get better experience using opus with huge packet losses ?</div><div class=""><br class=""></div><div class="">Yury <br class=""><div class=""><br class=""></div></div></div></body></html>