Nocs x Audiodo: Reinventing The Way You Listen Your unique sense of hearing plays a large part in how you experience music. Through the Nocs app, Audiodo Personal Sound assesses the hearing thresholds in your ears, calculates the necessary compensations, and applies the adjustments in real time. No delay, just superb sound quality. Lows, mids, and highs are finely tuned so you can finally hear exactly what you were meant to.