- The reproduction of sound that produces as faithfully as possible a three-dimensional sound image. Specialized coding and decoding equipment is required, along with an appropriate loudspeaker array. Also known by various other terms, including three-dimensional audio, 3D sound, positional 3D audio, and ambisonics.
- abbreviation 3-D positional sound
- abbreviation 3-D sound
- abbreviation 3D positional sound
- abbreviation 3D sound
- synonym three-dimensional audio
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