Render spatial audio to Youtube

relaxvideo wrote on 1/20/2022, 4:28 AM

I have a One X2 360 camera, which record spatial audio in 4 separate mono channel.

I see this in my timeline. But:

- what should i do in Vegas for making it good for youtube as spatial audio? Panning? Channel assign?
- how to render? Which format?
- i have a "Spatial Media Metadata Injector.exe" file for sign my video as 360 and here i can check
"My video has spatial audio (ambiX ACN/SN3D format).
So can i render to that? Or other formats are also supported?

Thanks a lot!

Comments

rraud wrote on 1/20/2022, 10:00 AM

Use a multi-channel AAC format.. though YT may downmix everything to stereo regardless of the format. I have never put 5:1 or other surround sound on YT.

relaxvideo wrote on 1/20/2022, 10:06 AM

Thanks, but YT does support spatial VR audio.. That's what i need.

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#2 i7-2600, 32GB, Nvidia 1660Ti, SSD for system, M2-SSD for work, 2x4TB hdd, LG 3D monitor +3DTV +3D projectors

Win10 x64, Vegas22 latest

fr0sty wrote on 1/20/2022, 1:49 PM

Ambisonic audio is recorded with multiple channels, but ultimately gets mixed down to 2 channels that are intended to be listened to through headphones. There are ambisonic mastering apps out there that you may need to download in order to do this downmix to stereo, such as waves b360.

Last changed by fr0sty on 1/20/2022, 1:50 PM, changed a total of 1 times.

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relaxvideo wrote on 1/20/2022, 1:52 PM

I like to watch/hear in VR headset. So the sound should change as i rotate around.

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#2 i7-2600, 32GB, Nvidia 1660Ti, SSD for system, M2-SSD for work, 2x4TB hdd, LG 3D monitor +3DTV +3D projectors

Win10 x64, Vegas22 latest

relaxvideo wrote on 9/2/2024, 7:28 AM

any news about it? :)

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#2 i7-2600, 32GB, Nvidia 1660Ti, SSD for system, M2-SSD for work, 2x4TB hdd, LG 3D monitor +3DTV +3D projectors

Win10 x64, Vegas22 latest

Howard-Vigorita wrote on 9/2/2024, 8:49 AM

I use a stereo technique. Essentially, the idea is convert x-y stereo to mid-side stereo and apply a different pre-delay to the signals before converting back to x-y. I prefer the longer delay on the side channel which creates a wrap-around effect on lead-vocals which are usually on the mid channel. I don't know if there's a plugin that does exactly that, but I don't see why there couldn't be... I do it manually with a single Bricasti reverb unit. And lately been doing the all the conversions and mixing with Vegas.

Greg-Kintz wrote on 9/4/2024, 4:29 PM

Disclaimer first: I don't use AmbiX but am aware of it and it's use on YouTube.

Howard & Frosty are correct about legacy Ambisonics in that it is a fixed (headlocked) 360 experience and matrixed into a Lt/Rt stereo pair. The Headtracking AmbiX format you are looking to use is far more advanced. With games or videos, as you had noted AmbiX can rotate the soundfield as needed depending on exactly where you are looking. It is also more or less a discrete 360 sound field vs legacy matrix Ambisonics.

My understanding of the AmbiX channel assignment is WYZX (AmbiX 1st order) go on the first discrete 4 channels. Channels 5 & 6 carry a legacy headlocked Ambisonic mix for those that cannot utilize the head tracking effect.

What multichannel codec to use with YouTube could be tricky though. YouTube can retain discrete 5.1 AAC and Dolby Digital / AC3, but the potential catch is in the ITU designated channel mapping for multichannel (used by both AC3 and AAC) they have channel #4 as the LFE channel, and some of the simpler stripped down encoders can have locked in filtering in place for the LFE channel. Vegas uses a stripped down AC3 encoder and I have not tested that one in full so you would have to test it and see if it only retains the low end or allows for full frequency encoding.

Give that a try or do some YouTube AmbiX encoding google searches and you might find a more clean cut workflow. Either way I hope this helped.

 

relaxvideo wrote on 1/27/2025, 2:28 PM

New year, new device: i bought a Zoom H2N recorder, which support spatial wav format! :-)

And i have a Quest 3 headset too, so i like to create my own 360 videos with spatial audio..
Question is how should i do that?
If i got the wav file, what app is needed in windows to create such videos with spatial audio?
(if latest Vegas 22 is not enough) Maybe only some plugins needed?

Any tips or links about tutorials for beginners are highly appreciated!

#1 Ryzen 5-1600, 16GB DDR4, Nvidia 1660 Super, M2-SSD, Acer freesync monitor

#2 i7-2600, 32GB, Nvidia 1660Ti, SSD for system, M2-SSD for work, 2x4TB hdd, LG 3D monitor +3DTV +3D projectors

Win10 x64, Vegas22 latest