The methodology is based on a controlled and repeatable recording protocol designed to ensure consistency across all test sessions.

Standardization

All recordings are performed using the same instrument, microphone setup, recording chain, and musical sequence.

Chronological Tracking

Each string set is recorded at defined intervals (Day 0, Day 1, Day 3, Day 7, Day 14, Day 30) to observe its evolution over time.

Spectral Analysis

Acoustic data is analyzed using Fast Fourier Transform (FFT) and energy tracking within specific frequency ranges to evaluate parameters such as brightness, clarity, and projection.

Perceptual Correlation

Objective measurements are systematically compared with subjective listening in order to connect acoustic data with real musical perception.