Why it exists
Tune was developed from an idea by Valentina Mello and engineered as a working prototype to transform movement into sound feedback. The goal was to support athletes and patients during knee rehabilitation by making motion quality perceivable in real time.
Project media

Architecture
- ESP32 microcontroller as the embedded processing unit.
- Two 9DOF inertial sensors capture movement from different body points.
- Sensor fusion and filtering extract a more stable representation of motion.
- A sonification layer maps movement patterns to audio feedback.
- The wearable form factor keeps the system close to the body while allowing repeated exercises.
Key features
- Real-time movement acquisition.
- Dual-sensor wearable setup.
- Motion sonification feedback.
- Kalman-filter-based processing concept.
- Rehabilitation and athletic-training use case.
- Mentioned in Il Mattino in an interview about the project.
Design decisions
The engineering challenge was turning noisy inertial data into feedback that could be understood immediately by a human user. The project sits between embedded systems, signal processing and interaction design.