Been trying to get some feedback on possibly getting better quality audio onto and out of YouTube. But so far not much response. I'm thinking maybe no one really expects good audio from YouTube and/or doesn't care. Anyway, thought I'd take a shot at getting some responses here.

I uploaded a couple of short 4K test clips to YouTube a couple of days ago. One of them is the mp4/aac format YouTube recommends. I don't really think much of aac audio quality which is why I'm doing the test. The other clip is in mov/wav format which obviously sounds better to me and mine if I play it here at home through my JBL powered studio monitors or the passive JBL's in my living room. But the 64 thousand dollar question is whether YouTube listeners can possibly hear any difference after YouTube converts my video clips to vp9 with opus-audio soundtracks. Which is supposed to sound better than aac. If opus really is better sounding than aac, listeners with decent headphones or earbuds should hear some difference. So far I've gotten only 2 on-point responses in 2 days. And only 1 thinks he hears a difference. And that one is a big maybe.

The mp4 clip I uploaded to YouTube was made by Vegas 23 using a Sony wav64 24bit 48k audio mixdown also made by Vegas. The mov clip was made by rendering the audio track from the same project in Microsoft 24bit 48k WAV format which was then swapped for the aac audio stream by ffmpeg while repackaging as a MOV clip. The 4k video streams were made by MainConcept set for 28mbps cbr... but that shouldn't have any impact on the audio stream. The mics and recorder I used to record the audio are among the highest rated recording studio quality: DPA's on piano. And a custom-built tube mic (Bock 151) for the audio overdub through a vintage-design Neve preamp. The Neuman kms105 stage mic seen in the video was replaced by the same singer's studio overdub. Reverb is a state of the art hardware unit: a Bricasti M7... I happened to have collaborated with one of the designers years ago (Casey, who is the cas in Bri-cas-ti) on the presets and their manipulation for desired spacial psycho-acoustic effects.

Anyway, here's a link to the 1st test clip, whose description contains a link to the 2nd one:
www.youtube.com/watch?v=JxmtDSPk1Uo

Any comments, here or in the YouTube comments, would be greatly appreciated.