Glossary
Searchable terminology from accessibility, web standards, and related fields.
8 results found in Speech.
- Electrolarynx (Artificial Larynx, Electric Larynx, EL Device, Throat Vibrator)
- A handheld battery-powered device that produces mechanical vibrations to generate speech for people who have lost their larynx (voice box), typically due to laryngeal cancer surgery. The device is hel…
- Jitter and Shimmer (Voice perturbation measures, Cycle-to-cycle variability)
- Acoustic measures of voice quality that capture short-term irregularity in the vocal fold vibration. Jitter is the cycle-to-cycle variability in pitch (fundamental frequency), while shimmer is the cyc…
- Laryngectomy (Larynx Removal, Voice Box Removal)
- A surgical procedure to remove all or part of the larynx (voice box), most commonly performed as treatment for laryngeal cancer. Total laryngectomy removes the entire larynx and separates the airway f…
- Self-Voicing Interface (Self-Voicing, Self-Voicing Application)
- A software application or interface that includes its own built-in speech output capability, rather than relying on a separate screen reader to interpret and voice its content. Self-voicing interfaces…
- Silent Speech (Silent Speech Interface, SSI)
- Communication technologies that generate intelligible speech from non-acoustic signals produced during the intent or attempt to speak, without requiring audible voicing. Input modalities include surfa…
- Speaking Behavior (Speaker Behavior, Speech Behavior)
- In accessibility and HCI research, the observable communicative behaviors a speaker exhibits during conversation — including speech rate, voice intensity (loudness), articulation clarity (including hy…
- Speech Synthesis Markup Language (SSML)
- Speech Synthesis Markup Language (SSML) is a W3C standard XML-based markup language for controlling the rendering of synthetic speech by text-to-speech (TTS) engines. SSML provides tags for specifying…
- Whispered Speech (Whisper, Whispering)
- A mode of speech production in which the vocal folds do not vibrate periodically; sound is generated by turbulent airflow through a narrow glottal opening. Whispered speech lacks a fundamental frequen…