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Can any one assist I want Encode AAC for Ambisonics in AAC to support playback on a web page. I cannot get ffmpeg 7.0.2 to encode 9 11 12 or 16 channels AAC. It recognises a 12 channel wav file as 7.1.4 but refuses to encode it to aac. I am not ...

This question is not in the correct place but I cannot find a relevant fora to ask Can any one assist I want Encode AAC for Ambisonics in AAC to support playback on a web page. I cannot get ffmpeg 7.0.2 to encode 9 11 12 or 16 channels AAC. It recognises a 12 channel wav file as 7.1.4 ...

As my work has been cited, I provide here more info on how to create these 16-channels video files with 3rd order Ambisonics. The only supported container is a MOV container, as an MP4 cannot contain a 16-channels uncompressed audio track. Using compression with high order Ambisonics ...

... of left into right and vice versa, thereby widening the stereo effect. 2 spatializer Spatializer Audio Spatializer 3 spatialaudio Binauralizer Ambisonics renderer and binauralizer 4 scaletempo Scaletempo Audio tempo scaler synched with rate 5 scaletempo_pitch Audio pitch changer Pitch Shifter ...

Hi! I have recently tried to stream a spherical video with first order ambisonics audio (the specs are exactly as specified by Google/Youtube). It works well over local network as well as streamed from my S3 bucket and the audio seems to pan correctly with ...

Is there any update on viewpoint changes and/or 3D specialization audio channels?

Hi all, I am trying to reproduce the creation of .mov files containing 3rd Order Ambisonics Audio for playback in VLC. However, I can't get the above mentioned HOA metadata injection tool to work. Whenever I run it on my muxed mov, I get the following output: >py ...

Would really like to get ambisonics supported by VLC?

... in VLC 3 that can support a headtracker for viewpoint change on a stationary computers running windows or OSX? Can a vst for like IEM SpaceRotator ambisonics rotation be included in the playback chain? Or is there any known way to control the viewpoint from an external sensor instead of the local ...

As VLC supports 16 channel third order Ambisonics and Sofa files I see a opportunity to create headtracked binaural listening in a simple way. That is to add the feature to control the listening direction with a simple headtracker that sends ...

I found your postings and want to ask a few related questions and possibly suggest something. I have been slowly working with web based ambisonics players as examples at www.ohti.xyz For compressed third order ambisonics I have tested opus and aac Opus is not supported on Apple products. The ...

My next task (as I seem to be documenting stuff here a little now!) is to work out how to add Ambisonic audio to a non-spherical video..........

Bruce

On a related note, it would be really useful if VLC labelled the Ambisonic audio as such on the codec dialog for higher order Ambisonics......

cheers

Bruce

... Then, put it through the injector python script in the post above, and VLC seems to recognise it correctly, even though it doesn't show 'Ambisonics' in the codec details like it does for 1st order content (audio does pan on video direction, though, so I think it's working!) cheers Bruce

ok......I'm getting there. Angelo Farina has made a version of the spatial media injector that injects meta data for higher order Ambisonic audio:
http://pcfarina.eng.unipr.it/Public/Jump-Videos/spatial-media-2.1-HOA.zip

Testing in VLC in a mo, and I'll report back!

I can make a .mov file with an equirectangular image and 16 channels of 3rd order Ambisonic audio........I'm just not sure how to inject metadata to get VLC to recognise it (Google's spatial media injector only handles 1st order audio.......)

Hi all. I've been testing 360 videos with spatial audio made for YouTube (i.e. using 1st order Ambisonics) over a 5.1 array. That works well with the audio scene rotating with the video view :-) . Videos made for Facebook 360 don't reproduce spatial audio correctly (probably ...

... Still the famous clunky interface; that'll take another ten years! One disappointment is that, under Preferences > Audio > Filters, there's an ambisonics check box, a binauralizer. Sadly, to my ears anyway, it does absolutely nothing. Same with stereo widening and a few others. I've compared ...

... module matching "any": 2 candidates main debug: using audio volume module "float_mixer" main debug: input 'f32l' 48000 Hz Ambisonics frame=1 samples/16 bytes main debug: conversion: 'f32l'->'f32l' 48000 Hz->48000 Hz Ambisonics->Stereo main debug: looking for audio renderer ...

Now that 3.0 has been released I'm happy to say that VLC passes through the 4 ambisonics channels. I don't think however, that it is doing the point-of-view rotation of the audio escape. I'm afraid that by "original", what shows up in the menu, it really ...

Now that 3.0 has been released I'm happy to say that VLC passes through the 4 ambisonics channels. I don't think however, that it is doing the point-of-view rotation of the audio escape. I'm afraid that by "original", what shows up in the menu, it really ...

Hi, VLC 3.0-git seems to have some initial implementation of 360 video and it also seems like ambisonics is on the cards for the near future. I assume that when the implementation is finished we'll have VLC do some HRTF transform and rotate the audio as well as the video. ...