AES 5th International Conference on Automotive Audio

This paper presents a methodology for evaluating the perceived quality of an audio processing device. It is based on two stages, namely Objective and Subjective.

The Objective stage consists of producing objective measurements of audio signal descriptors of both source and processed signals. Based on the collected dataset, deviations to Target Reference values are computed and utilized to generate statistical analysis on the performance of the device.
The Subjective stage is performed to assess the quality of the processed audio content as perceived by the end-users. Based on a Mean Opinion Score framework, it collects subjective assessments on the following attributes: Target Consistency and Impact on Source Quality. The results are processed to describe the performance of the device being assessed.

As a sample implementation of our methodology, the performance of three different loudness processors are evaluated and the results of Objective and Subjective stages are used for defining their overall quality performance.

ID:03_Travaglini