from training.npr.org: https://training.npr.org/2018/11/27/360-audio/
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360

A guide to recording spatial audio for 360-degree video
Here’s what we’ve learned from our experimentation with 360 audio recording.

A beginner’s guide to spatial audio in 360-degree video
A team at NPR is experimenting with immersive video and audio — and has tips on recording, editing, building a rig and more.