Ambisonics

Article

43 sections

Contents

Introduction
Panning a source
Virtual microphones
Decoding
Higher-order ambisonics
Comparison to other surround formats
Theoretical foundation
Soundfield analysis (encoding)
Psychoacoustics
Low-frequency localisation
High-frequency localisation
ITD and ILD reproduction in ambisonics
Monoaural HRTF cue
Soundfield synthesis (decoding)
Compatibility with existing distribution channels
Stereo
Multichannel formats
Production workflow
Ambisonic microphones
Native B-format arrays
The tetrahedral microphone
Higher-order microphones
Ambisonic panning
Ambisonic manipulation
Data exchange
Compressed distribution
Decoding
Diametric decoders
Regular polygon decoders
Auditorium decoders
"Vienna" decoders
Parametric decoders
Irregular layout decoders
Current development
Open source
Corporate interest
Use in gaming
Patents and trademarks
See also
Notes
References
External links
Decoders

thumb|200px|right|Ambisonics former trademark

Ambisonics is a full-sphere surround sound format created by a group of English researchers — among them Michael A. Gerzon, Peter Barnes Fellgett, and John Stuart Wright — under support of the National Research Development Corporation (NRDC) of the United Kingdom. In addition to the horizontal plane, the format incorporates sound sources above and below the listener. The term is used as both a generic name and formerly as a trademark.