AudibleT - A real-time embedded tool for subjective assessment of audio parameters

Abstract

The project is focused on developing a real-time embedded application for the subjective assessment of audio parameters. This project’s scope is limited to Just Noticeable Difference (JND) testing. The study around this project investigates the audio parameters suitable for JND while diving into different methods of testing such parameters. This tool is developed to allow real-time equalizer coefficients update as well as offer A/B/X testing of linear distortion. The system currently supports stereo audio output and a graphical user interface for running training and testing sessions with several configurable options and provides binomial distribution analysis and confusion matrix of each conducted ABX testing session. The tool utilized the JACK audio connection kit for low latency audio, and is optimized for general purpose computer as well as tested on Raspberry Pi 400.