Vocal projection, articulatory range, and at-home tracking for your patients with dysarthria.
70%
of post-stroke patients show dysarthria at onset
4 types
of dysarthria covered: hypokinetic, spastic, ataxic, flaccid
↑ intelligibility
the core clinical goal of dysarthria therapy
Dysarthria is a disorder of speech production tied to neuromuscular impairment: Parkinson's (hypokinetic), MS, post-stroke (spastic or flaccid), or ataxic (cerebellar stroke, hereditary ataxia). Patients present with varying degrees of hypophonia, imprecise articulation, and atypical speech rate.
ICD-10: R47.1Hypophonia: weak, breathy, or hoarse voice
Imprecise consonants: reduced range of articulatory movements
Atypical rate: too slow (spastic), rushed (Parkinson's), irregular (ataxic)
Monotone voice: loss of melodic variation (flat F0)
Reduced intelligibility in noisy settings
A real-time loudness meter calibrated to the patient's resting voice. Ideal for hypophonia in hypokinetic dysarthria. The target adjusts to each profile.
PA-TA-KA (diadochokinesis), oral-motor exercises, tongue twisters, texts loaded with complex consonants. Builds articulatory range and precision, following the principles of LSVT and Duffy (2019).
A dedicated module for vowel and consonant range. Measures the two main articulatory gestures in real time with visual feedback.
For patients with a monotone voice. Visualizes the melodic contour, 11 prosodic intents, segment-by-segment coaching.
10 to 15 min a day between sessions. Consistency is key in dysarthria. Biofeedback keeps exercise quality high without the therapist present.
A progress curve for loudness and articulation across several weeks. Recordings can be replayed to assess qualitative gains.
These modules run right in your browser, microphone optional. This is what your patients see between sessions.
Read this sentence aloud:
"I'm doing well, thank you. And you, how are you today?"
Keep your level in the green zone for 10 seconds.
Repeat "PA-TA-KA" as evenly as you can. Tap each syllable the moment you say it.
0
repetitions
–
rate
5s
remaining
Adult target: ≥ 3.0 repetitions/s (Duffy, 2019)
A preview of the modules available in the app. Every exercise can be assigned from your dashboard.
The patient knows whether they're being heard, instead of trusting an internal sensation that has misled them for months.
Your patient measures their articulatory consistency and watches it improve week after week. They stop relying on how it feels.
Every articulatory gesture is visible. Your patient understands why they're hard to follow, and how to fix it.
Their melodic contour appears on screen. For the first time, your patient sees their monotone voice instead of only feeling it.
Articulatory precision trained under pressure. What your patient masters here, they carry over into real conversation.
10 minutes a day at home, with the same feedback as if you were sitting beside them. Progress doesn't stop at the clinic door.
1. Initial assessment
Measure SPS. Subjective intelligibility rating. Calibrate the vocal baseline.
2. Motor exercises
PA-TA-KA, oral-motor exercises, tongue twisters. Combined articulation + loudness biofeedback when hypophonia is present.
3. Vocal projection
Reading with loudness biofeedback. Target: x1.3 to x2 vs resting voice.
4. Intonation
For patients with a monotone voice. Real-time F0 contour, 11 intents.
5. Follow-up
Between-session loudness curve. Replayable recordings. Goal adjustment.
Intensive, regular practice of articulation drills is the foundation of dysarthria therapy, regardless of etiology.
Duffy, J.R. (2019), Motor Speech Disorders (4th ed.)
Loudness biofeedback helps recalibrate the perception of vocal effort in hypokinetic Parkinsonian dysarthria.
Ramig et al. (2001), LSVT-LOUD. Movement Disorders
Remotely supervised home practice produces gains comparable to clinic-only therapy for mild-to-moderate dysarthria.
Spencer & France (2014), Dysarthria treatment evidence. SIG 2 Perspectives
An honest look at what the main tools on the market offer for this indication.
| Tool | Vocal biofeedback | Articulation drills | Browser-based | No install | SLP follow-up | Free for patients |
|---|---|---|---|---|---|---|
| Talk Slower | ||||||
| LSVT Coach | ||||||
| Rehab My Patient | ||||||
| Voice Analyst |
= partial or limited feature. Sources: official tool websites, May 2026.
Your patients practice at home with the same biofeedback as in session. You see their progress before they even arrive.
These indications share a mechanism or a close differential diagnosis. Explore the dedicated tools.
LSVT-LOUD compatible biofeedback plus intonation training for your patients with Parkinson's disease.
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