Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Interaural Level Difference(also: ILD, Interaural Intensity Difference, IID)
- The difference in sound pressure level (loudness) between the two ears, used by the auditory system to localize sound sources. Sounds coming from the right are louder in the right ear due to the head creating an acoustic shadow. ILD is most effective for localizing…
- Interaural Time Difference(also: ITD, Interaural Phase Difference)
- The difference in arrival time of a sound between the two ears, used by the auditory system to localize sound sources in the horizontal plane. Sound from the left reaches the left ear before the right ear; the brain uses this timing difference (up to about 0.6-0.7 milliseconds…
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