Assembling Ambisonics Audio

Understand assembling Ambisonics audio along with 360 video to create an immersive experience.

Used by enthusiasts, Ambisonics is a full-sphere surround sound technique that allows users to cover sound sources above and below the listener in addition to the horizontal plane. Unlike other multichannel surround formats, its transmission channels do not carry speaker signals. Instead, they contain a speaker-independent representation of a sound field called B-format, which is then decoded to the listener's speaker setup. This extra step allows the producer to think in terms of source directions rather than loudspeaker positions and offers the listener a considerable degree of flexibility as to the layout and number of speakers used for playback.

You can assemble Ambisonics audio along with 360 video to create an immersive experience. To check for proper alignment, you would need to monitor the Ambisonics audio as you change its orientation. The audio media could be contained in separate audio files, often in uncompressed WAV using PCM encoding, but they could also be contained in MP4 using AAC encoding. 

Considerations when using Ambisonics audio

• When you are importing multichannel mono media, import it as adaptive track audio.
• VR sequence presets are available under either the Audio Track Mixer or in the Audio Effects folder located under the Audio Effects panel.
• When you are exporting media, select Export Settings > H.264 > Audio is Ambisonics (choose any setting under Ambisonics as required)