I’m wondering if it’s maybe just a converted ADM BWF file into a binaural file that’s uploaded to youtube, rather than say uploading an MP4 DD+JOC file that can be played on multiple surround systems that’s decoded by youtube.
Is there a reason that you wouldn’t just upload the binaural file since its just a 2 channel wave file? Are you wanting or needing to confirm that youtube can also playback the same sample in a surround setup?
That’s what I’m wondering too. It would make sense and I need to try as soon as possible. But I figure the thing should be indicated in Google support somewhere, or someone here knows the answer (I must point out to you though that in the Dolby Renderer’s construction of MP4, there is the black video option which I think is precisely aimed at this situation of uploading audio without an image on a video platform like Youtube).
For your question, no, I don’t need surround playback for Youtube (for which I’d have to go for ambisonic, if I understand correctly). Only binaural in this case.
Correct, you can also combine an image video that is the same length within the external renderer
Considering you are not looking for something to playback on multiple systems, I would definitely suggest just uploading the binaural file, which would have a similar result if youtube can actually fold down an MP4 DD+ JOC file on playback (though I would be unsure if that was binaural or stereo if they have that process in place). Good luck on your journey to finding this info though! It does not appear to come up easily in a search.
Thanks, I’ll give it a try. Indeed, not easy to get this information. I must say that on the Dolby Atmos side, it is so. Despite Dolby’s efforts and the support here of the community, among which there is sometimes strong technical expertise in addition to concrete knowledge, there is a lack of simple or basic information, or step-by-step methods.
Stereo does not involve head related transfer function which is a fancy phrase that there is a subtle delay when the sound from left hits your left ears first before the right and vv as well recreation of hight and rear based on your ear shape and head size. When binaural is heard on stereo system it sounds wider and more spacious. Dolby has used several algorithms in past to give you the same wide spacious feel. Try to hear binaural and stereo using only the near field monitors to gauge the difference. A tighter binaural mix sounds better than stereo both on headphones and stereo speakers.
From my understanding, if you export Binaural with the Dolby Atmos plugin (not sure, whether to call it here the Dolby Atmos Renderer), the plugin creates a 2-channel-stereo from a 7.1.4 speaker layout with “binaural placed sound” for binaural stereo).
Don’t know, whether it makes a difference, if using 7.1.2m 7.1.4 or even 9.1.6)
Am not sure, that if you successfully created a 2-channel-stereo in wav-format with binaural, that
2a) if transforming it into MP3, the binaural elements within the 2-channel-track get either damaged or even lost, or
2b) if uploading the 2-channel-track to Youtube, they re-compile it for what ever reason (sound standard format for redistribution or so), that the binaural elements get damaged or even lost.
As soon as the audio is properly binauralized, it’s just a (special) stereo file, no matter if the source was stereo, 5.1, 9.1.6 or 7th order Ambisonics.
Not more than it damages any other audio source. Of course the format-immanent data reduction will take its toll, to some extent, especially due to the missing information in the side-channels, but that’s part of the game.
Well, I’ve managed to put an mp4 from Dolby Atmos Renderer (and Dolby Atmos album assembler) on Youtube. Listening is binaural, with no problems whatsoever. It closely resembles binaural listening with Nuendo’s internal Renderer. In the end, it’s not rocket science, and there’s no destruction of the mix balance (just a rather successful binaural interpretation, I think, but one that needs to be analyzed and understood, if necessary, to refine the renderings).
Thank you. Anyway, the Dolby Renderer can no longer read the file (after pssing in Wavelab) as Master to make an MP4. So I have to go back to Dolby assembler for the mastering…