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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Timbre(also: Tone Colour, Tone Color)
The perceived quality or 'colour' of a sound that distinguishes different sources playing the same pitch and loudness — for instance, the difference between a flute, a violin, and a human voice singing the same note. Timbre is determined largely by the spectral content (the…
Tinnitus(also: Ringing in the Ears)
Tinnitus is the perception of sound - most commonly ringing, buzzing, or hissing - without a corresponding external source. It can be continuous or intermittent, uni- or bilateral, and ranges from mild background nuisance to severely disabling. Tinnitus is often associated with…

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