A System for Instrumental Evaluation of Audio Quality
* Presenting author
An approach for instrumental assessment of audio systems is presented in this contribution, which is based on binaural recordings of real music signals as well as measurement signals. Any system for instrumental assessment of audio quality should ideally be able to replicate the perception of a human test subject. An auditory test design based on music signals was recently devised that was shown to lead to reliable test results even with naïve test subjects. The test utilizes three individual attributes (timbre, distortions and spaciousness) along with a judgement on overall quality to quantify the perceived quality.Several auditory tests were conducted with the proposed design to collect training material for the system that is presented in this contribution. The system consists of two main components: An analysis stage that contains specific components for the individual attributes and a trained regression that utilizes the results of the conducted listening tests to establish a relation between the analyses and human perception.This contribution presents an overview of the assessment system, highlights the interaction between analyses and quality perception, and makes a comparison with auditory results.