AgeTech Clinic

Acoustic Accessibility

Voice User Interfaces (VUIs) are often touted as the ultimate accessible interface for older adults with limited mobility or vision. However, standard voice assistants (Alexa, Siri, Google Assistant) are trained on datasets heavily biased towards younger, neurotypical voices.

The Dysarthria Gap

Conditions like Parkinson's, ALS, or post-stroke recovery frequently cause dysarthria (motor speech disorder). Standard models often fail to parse these commands, leading to repeated failures, frustration, and eventual abandonment.

Failure Rates

47% Word Error Rate (WER) of standard smart speakers for users with mild-to-moderate dysarthria.

3.2s Timeout limit on standard assistants, failing users who need more time to complete a command.

Tool: VUI Timeout Risk Assessor

Calculate the probability of task failure based on cognitive delay and command length.

Average adult: 130 WPM. Parkinson's/Dysarthria: ~60-80 WPM.

Default Alexa: ~3s of silence.

HIGH RISK

User likely to hit timeout before completing command.

Frequently Asked Questions

Is this assessment vendor-neutral?

Yes. AgeTech Clinic accepts zero funding or hardware from vendors. All metrics are independently derived from published clinical data.

How often is this data updated?

We review the clinical landscape quarterly. If a new firmware update significantly alters device performance, we update our matrix immediately.

Deep Dive: Related Clinical Assessments

Explore our full matrix of technology evaluations. Each area focuses on distinct physical, cognitive, and architectural requirements for aging-in-place.