Looking at Opus for MP3 replacement and have questions 2016-11-04 21:00:53 Hi. It's been a long time I don't post here, and just noticed last year that Opus was the new hot codec on the scene, beating everything it could on the latest listening test. I have a couple of questions though:Opus resampling:1) Why does Opus upsample everything to 48000Hz?2) Is there any need to worry about quality concerning the Opus internal resampler?3) Will Opus do everything right if it is told to not upsample but keep the original 44100Hz, or will it have to spit its guts to decode after this?Opus binaries:1) Seems that the latest binary is 1.1.3, however, the opusenc.exe seems that is not working with foobar2000. I tried to encode and it returned a error. With inbuilt foobar's opusenc lib, it encodes fine.Opus quality:1) Being a MP3 V0 guy, what would be (approximately) the equivalent setting around V0 or V2 in Opus, since it can produce smaller files and higher quality, better even that aoTuV?Opus metadata:1) Does embedded album art work for Opus? Are the size limits? My images are 1500x1500 and usually around 1.5 MiB.2) ReplayGain is stored differently in Opus, like a global album gain in a tag, and a separate tag for track gain. Will this sort of have any complications with Android player Poweramp?Opus icon for foobar2000:1) foobar2000 folks now should address this, but here's the petition... I'm getting an OGG icon for opus files. Will we have a proper OPUS icon soon? Getting the OGG icon feels really odd.