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/Encoding inputs with AAC Ambisonics FOA/

Encoding inputs with AAC Ambisonics FOA


Hello, I would like to validate if the meciaconvert supports audio track for Ambisonic coding.

I have an MP4 input for 360 video
with one audio track First Order Ambisonics (W X Y Z).
But I don't see an equivalente channel coding for output audio AAC.

This is the input audio track mediainfo :

ID : 2 
Format : AAC LC 
Format/Info : Advanced Audio Codec Low Complexity 
Codec ID : mp4a-40-2 
Duration : 6 min 52 s 
Bit rate mode : Variable 
Bit rate : 506 kb/s 
Maximum bit rate : 512 kb/s 
Channel(s) : 4 channels / 4 channels 
Channel(s)_Original : 4 channels 
Channel layout : Ambisonics (W X Y Z) / Ambisonics (W X Y Z) 
ChannelLayout_Original : C L R Cs 
Sampling rate : 48.0 kHz 
Frame rate : 46.875 FPS (1024 SPF) 
Compression mode : Lossy 
Stream size : 24.9 MiB (0%) 
Default : Yes 
Alternate group : 1 
asked 2 years ago2 views
2 Answers


MediaConvert supports multi-channel outputs as outlined in the following document. It does not support coding a channel as W X Y Z, but instead, it codes with left, right, center, etc.


answered 2 years ago

Thank you! I conclude Media Convert may not have a specific support for Ambisonic Audio coding

answered 10 months ago

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