CapisciAMe CNN outperforms familiar listeners on impaired speech

A CNN trained only on one patient's voice recognized 72.65% of her words versus 56.75% for 12 familiar professionals; lab result only.

AI system

System

CapisciAMe speaker-dependent ASR (compact convolutional neural network, cnn-trad-fpool3) in a voice-input voice-output communication aid

Model

cnn-trad-fpool3.

Release

Exact release not established.

Application developer

University of Messina and IRCCS Centro Neurolesi Bonino-Pulejo research team (CapisciAMe app developed in Italy as a research tool)

Role

The personalized network recognized spoken words for a communication aid.

Configuration

The speech-recognition model was trained on 1,120 patient utterances.

Inputs and outputs

Not assessed

Autonomy

Not assessed

Workflow

Speaker-dependent training on hundreds of the patient's own utterances. Closed, small target vocabulary. Multiple prompting modalities during recording.

Human oversight

Not assessed

Relation to AI

The personalized network is the entire intervention. Its 72.65% word accuracy exceeded the 56.75% mean of familiar listeners. The comparison used a 13-word closed set. The authors state the single-case design and limited vocabulary constrain generalization.

AI contribution

The personalized network is the entire intervention. Its 72.65% word accuracy exceeded the 56.75% mean of familiar listeners. The comparison used a 13-word closed set. The authors state the single-case design and limited vocabulary constrain generalization.

Benefits

Outcome identifiers

Not assessed

Benefit

recognized 72.65% of her words versus 56.75% for 12 familiar professionals

Category

Improved Task Accuracy

Status

Not assessed

Beneficiary groups

People. Society.

Beneficiaries

Not assessed

Reach

Not assessed

Distribution and access

Not assessed

Duration

Not assessed

Expected?

Yes

Costs and harms

Not assessed

Measurement

Studies

Not assessed

Study design

Not assessed

Measurement

Not assessed

Setting and sample

Not assessed

Measures

recognized 72.65% of her words versus 56.75% for 12 familiar professionals

Comparison

12 familiar rehabilitation professionals listening to the same utterances

Results

Reference: mean = 56.75 %, SD = 12.91. Result: 72.65 % accuracy.

Additional value from AI

Not assessed

Limitations

Not assessed

Denominators

Not assessed

Materials for replication

Not assessed

Money

Kind of value

Not assessed

Amount

Not assessed

Currency and prices

Not assessed

Period and unit

Not assessed

Realization

Not assessed

Recipients and payers

Not assessed

Gross or net

Not assessed

Included costs

Not assessed

Comparison

Not assessed

Method

Not assessed

Return and payback

Not assessed

People and places

Participants

Developer: University of Messina and IRCCS Centro Neurolesi Bonino-Pulejo research team (CapisciAMe app developed in Italy as a research tool). Operator: University of Messina (therapy-room sessions).

Jurisdictions

Benefit: Messina, Italy. Developer: Italy. Operator: Italy.

Ownership and control

Not assessed

Dependencies

Not assessed

Cross-border connections

Not assessed

Geopolitical implications

Not assessed

Follow-up

Conditions for replication

Patient can produce consistent vocalizations for each target word. Quiet recording environment with a headset microphone. Clinician time to collect and label training data.

Replication attempts

Not assessed

Later findings

No later development found.

Availability

Not assessed

Institutional decision

Not assessed

Grounds

Not assessed

Action and result

Not assessed

Success criterion

Not assessed

Evidence

Source numbers

AIBD-0059-source-0001–0002

Citations

Numbered references below.

Language

Not assessed

Source relationships

Developer

Original evidence

Not assessed

Access and versions

Not assessed

Supported findings

Not assessed

Evidence strength

Not assessed

Missing evidence

Not assessed

Grades

Assessed benefits

People. Society.

Depth

Not assessed

Reasons

People: The result is a recognition-accuracy capability measured in test sessions. The paper documents no use of the system for the patient's real communication. Society: Single-case proof of concept with a 13-word vocabulary.

Observed or intended

Not assessed

Rubric

Not assessed

Assessor and date

Not assessed

Alternative assessments

Not assessed

Fill

The makers' claim

Entry details

Kind

Not assessed

Field

Speech-language rehabilitation / augmentative communication. Adults with post-stroke aphasia and dysarthria.

Purpose

Recognize the impaired speech of a person with aphasia and dysarthria so a communication aid can voice her intended words

Dates

Date basis unassessed: 2022 (precision unassessed). Updated: 22 October 2026.

Stage

Not assessed

Version

SHA-256: c7c5373cc759…

References

Other identifiers

AI Incident Database: 732.

Category mappings

Not assessed

Brief

Not assessed

Revisions

8 revisions. Latest: 22 October 2026.

Sources

  1. Case report Developer

    University of Messina and IRCCS Centro Neurolesi Bonino-Pulejo authors (2026). Case Report: Tailored automatic speech recognition in global aphasia with dysarthria - a single case proof of concept. Frontiers in Rehabilitation Sciences.