Goniometer (audio)

A goniometer is often included in analog audio equipment to display a Lissajous figure which shows the amount of stereo (that is, phase differences) in a dual-channel signal.^[1] It allows the sound technician to adjust for optimal stereo and determine the makeup of errors such as an inverted signal. Many goniometers also provide a VU or PPM as a secondary function.^[2] A goniometer adapted for surround metering is called a 'jellyfish display'. This term was coined by DK-Technologies A/S from Denmark.

^ Brixen, Eddy B. (1992-03-01). "Multi-Compatible Stereo Techniques for Television". Audio Engineering Society. {{cite journal}}: Cite journal requires |journal= (help)
^ Hof, A. L.; Bonga, G. J. J.; Swarte, F. G. J.; de Pater, L. (1994-01-01). "Modular PPM telemetry system with radio, intra-red and inductive loop transmission". Medical and Biological Engineering and Computing. 32 (1): 107–112. doi:10.1007/BF02512489. ISSN 1741-0444. PMID 8182953. S2CID 7452797.

[1] Brixen, Eddy B. (1992-03-01). "Multi-Compatible Stereo Techniques for Television". Audio Engineering Society. {{cite journal}}: Cite journal requires |journal= (help)

[2] Hof, A. L.; Bonga, G. J. J.; Swarte, F. G. J.; de Pater, L. (1994-01-01). "Modular PPM telemetry system with radio, intra-red and inductive loop transmission". Medical and Biological Engineering and Computing. 32 (1): 107–112. doi:10.1007/BF02512489. ISSN 1741-0444. PMID 8182953. S2CID 7452797.

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