- 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.
- abbreviation3-D positional sound
- abbreviation3-D sound
- abbreviation3D positional sound
- abbreviation3D sound
- synonymthree-dimensional audio