https://www.opus-codec.org/comparison/ https://www.opus-codec.org/comparison/ https://i.imgur.com/zxwOBMJ.png https://i.imgur.com/zxwOBMJ.png Etc. Discussion

https://www.opus-codec.org/comparison/ https://www.opus-codec.org/comparison/ https://i.imgur.com/zxwOBMJ.png https://i.imgur.com/zxwOBMJ.png Etc. Discussion of 1.3-beta here: https://hydrogenaud.io/index.php/topic,115156.0.html https://hydrogenaud.io/index.php/topic,115156.0.html Discussion of preferred bitrate and point of transparency: https://hydrogenaud.io/index.php/topic,115386.0.html https://hydrogenaud.io/index.php/topic,115386.0.html https://hydrogenaud.io/index.php/topic,114656.0.html https://hydrogenaud.io/index.php/topic,114656.0.html I would highly recommend that you give it a go yourself. Take a FLAC source, encode Opus files yourself. The encoder is freely available from https://opus-codec.org/downloads/ https://opus-codec.org/downloads/ and integrates nicely into Foobar2000's converter function (Opus is already there as a profile, it will ask for the location of opusenc.exe the first time you use it). Use the ABX Comparator plugin for Foobar2000 (both available from http://foobar2000.org http://foobar2000.org) and run a few trials. After all, public listening tests are one thing, but to be absolutely sure a format/bitrate is transparent to you, individual testing is needed. I have run a number of tests myself (of Opus and other formats) and found general transparency at ~96kbps Opus, lower for some tracks. For those tracks that weren't transparent at that bitrate, the artifacts were generally benign and not that annoying (slightly increased noise levels, mostly).