DAF Professional

DAF Pro - Professional Speech Therapy App for Fluency & Clarity DAF Pro is the world's leading speech therapy app using delayed auditory feedback (DAF) technology, trusted by thousands across 100+ countries. This professional fluency therapy tool helps people with stuttering, stammering, Parkinson's disease, dysarthria, and speech disorders achieve clearer, more controlled speech through real-time auditory feedback.

Designed by a certified Speech-Language Pathologist (MSc, PGDip, BAHons, HPC registered, RCSLT member), DAF Pro delivers ultra-low latency (20ms on Google Pixel devices) making it the most responsive speech therapy app available for Android.

What is Delayed Auditory Feedback?
Delayed auditory feedback (DAF) is a clinically recognized speech therapy technique that helps control speech rate and improve speech fluency. By hearing your voice with a slight delay, DAF encourages slower, clearer speech and reduces speech impediments. This evidence-based therapy method has been proven effective for stuttering therapy, stammering treatment, and Parkinson's speech rehabilitation.

Who Benefits from DAF Pro?
• Stuttering & Stammering: Reduces speech blocks, repetitions, and prolongations while promoting fluent speech
• Parkinson's Disease: Controls speech rate, reduces dysarthria, improves speech clarity and intelligibility
• Dysarthria & Motor Speech Disorders: Enhances articulation and speech precision
• Speech Therapy Patients: Provides portable therapy for home practice and skill generalization
• Speech-Language Pathologists: Professional-grade clinical tool for therapy sessions

Key Features:
✓ Ultra-Low Latency: Industry-leading 20ms delay for natural, real-time feedback
✓ Background Mode: Continue speech therapy while using other apps or making calls
✓ Customizable Settings: Adjust delay time, pitch shift, microphone boost, and noise gate
✓ Recording & Playback: Track your progress and practice sessions
✓ Therapist-Designed: Developed by certified SLP using evidence-based techniques
✓ Privacy-Focused: GDPR compliant, no data collection, works offline

Why DAF Pro Stands Out:
Unlike consumer speech apps, DAF Pro is a professional-grade therapy tool designed for clinical effectiveness. Our advanced audio processing delivers the fastest response time, while background audio mode allows continuous therapy during daily activities - features unavailable in competing stuttering apps or speech therapy tools.

Proven Results:
Delayed auditory feedback has been shown in clinical research to help 1 in 3 people who stutter achieve significant fluency improvement. Many users with Parkinson's disease report better speech rate control and reduced dysarthria symptoms when using DAF therapy consistently.

Perfect For:
• Daily speech fluency practice and therapy exercises
• Telephone confidence and workplace communication
• Public speaking preparation and presentation skills
• Complementing professional speech therapy sessions
• Managing speech anxiety and communication challenges

DAF Pro is your portable speech therapy solution - whether working independently or alongside a speech-language therapist, this fluency app brings professional-grade delayed auditory feedback therapy to your pocket.

Clinical-grade speech therapy tool | Evidence-based fluency treatment | Developed by certified Speech-Language Pathologist

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