How can I export B Format ambisonic audio in a render. Blender uses OpenAL, which does allow for First Order Ambisonic (4 mono channels, WXYZ) rendering. My goal is to create a stereoscopic, 360 degree video with spatial audio (audio field rotates with head).

Here are the documentation links regarding audio in Blender (many of them just say TODO):




I assume that the 4 Channels format found in the scene properties context has much to do with spatial audio. Can someone elaborate on these options?

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Demo .blend file to play with (you'll need to supply your own audio):

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  • 1
    $\begingroup$ A very similar question has also been asked here. (Also upvoted, but without even a comment...) $\endgroup$
    – JakeD
    Commented Feb 7, 2017 at 2:48

1 Answer 1


Can use the mixdown operator to create an "audio render" of the scene.

Mixdown is next to the render animation button in the latest versions of Blender (There once was a mixdown button on the audio panel)

Otherwise go to the python console and type in


to call the operator as if a button was pressed.

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Select a format that allows for the channels, wav is pretty foolproof.

I just added a simple mono wav file to your test file and selected basic old stereo. Below is the result viewed in audacity. Starts in left ear, moves to right as it rotates.

enter image description here

If I choose 4 channels I get a 4 channel wav file.

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Which appears to be Quadraphonic ears at (facing north) NE, SE, SW, and NW. (Or speakers at Left Front, Right F, L Rear and RR) rather than W, X, Y, Z

  • $\begingroup$ Mixdown is next to the render animation button in the latest versions of Blender... $\endgroup$
    – JakeD
    Commented Feb 7, 2017 at 22:31
  • $\begingroup$ Does this mean that 4 track export of discreet audio (no bleeding of sound to other channels) must only be saved from 3D spatialized view via speakers? The VSE also allows 4 types of panning (-2,-1,+1,+2) per piece of media, but they end up mixed. $\endgroup$
    – 3pointedit
    Commented Feb 13, 2017 at 11:47

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