Glossary

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Automated speech scoring(also: Computer-aided speech assessment, Automatic speech evaluation)

The use of computational techniques — including voice activity detection, phoneme recognition, prosody analysis, and speaker diarization — to automatically evaluate the accuracy and quality of speech production without requiring real-time human assessment. In speech therapy…

Childhood apraxia of speech(also: CAS, Developmental verbal dyspraxia, DVD)

A motor speech disorder in which the brain has difficulty planning and coordinating the precise movements of the tongue, lips, jaw, and palate needed for intelligible speech. Unlike other speech disorders caused by muscle weakness, CAS involves impaired motor programming — the…

Dysarthric Speech(also: Dysarthria)

Dysarthric speech is speech that is affected by dysarthria, a motor speech disorder resulting from neurological injury or conditions that affect the muscles used for speech production. Characteristics include imprecise articulation, irregular speech rate, abnormal pitch and…

Facial Palsy(also: Bell's Palsy, Facial Paralysis, Unilateral Facial Palsy)

Facial palsy is a condition involving weakness or paralysis of the facial muscles, typically caused by damage to the facial nerve (cranial nerve VII). Bell's palsy is the most common form, appearing suddenly and usually affecting one side of the face. Facial palsy can…

Spasmodic Dysphonia(also: Laryngeal Dystonia, SD)

Spasmodic dysphonia is a neurological voice disorder characterized by involuntary spasms of the laryngeal muscles during speech, causing interruptions in voice production. The most common form, adductor spasmodic dysphonia, causes the vocal folds to close too tightly, producing…

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