Glossary

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Visual Feedback(also: Visual Biofeedback)

A method of providing real-time visual information to a user about their actions, performance, or physiological state. In speech therapy and assistive technology, visual feedback systems display graphical representations of vocal output to help users understand and modify their…

Visual Speech Aid(also: Speech Reading Aid, Visual Communication Aid)

A visual speech aid is an assistive device or system that converts auditory speech information into visual form to help individuals with hearing impairments follow spoken conversation. These aids may display text (as in captioning systems), phonetic symbols, lip-shape cues,…

Vocalization Analysis(also: Vocal Analysis, Infant Vocalization Analysis)

Vocalization analysis is the systematic study and measurement of vocal productions, including speech, pre-speech sounds, and non-speech vocalizations. In developmental and clinical contexts, vocalization analysis involves recording, digitizing, and examining acoustic features of…

Voice Cloning(also: Voice Synthesis Cloning, Personalized Text-to-Speech)

The use of machine-learning models to synthesise a target speaker's voice from a short reference recording, enabling text-to-speech output that sounds like that specific person. For accessibility, voice cloning has transformative potential: people whose voices are at risk of…

Voice Conversion(also: VC, speech conversion)

A speech processing technique that transforms one person's voice to sound like another while preserving the linguistic content. In accessibility applications, voice conversion can improve the intelligibility of speech from people with articulation disorders by replacing unclear…

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