The number of consumer home theatre systems with surround capabilities has increased heavily. Nonetheless, most audio content is still 2-channel stereo. Thus, to enjoy the advantages of their surround-systems for all types of content, consumers resort to systems that automatically create multi-channel sound from legacy sources ("blind up-mix"). While a number of algorithms are used today, there is no commonly accepted test methodology to evaluate their sonic performance. Standardized listening test procedures evaluate audio quality relative to an unimpaired reference as a ground truth and thus are not applicable to up-mix scenarios. In this paper a new listening test procedure is described which is designed to consistently assess the quality of up-mix (or down-mix) algorithms. First test results are presented.
Authors:
Bube, Sebastian; Fabris, Christian; Hohberger, Thomas; Köhler, Anja; Liebetrau, Judith; Sporer, Thomas; Walther, Andreas
Affiliations:
Fraunhofer IDMT; Fraunhofer IIS; TU Ilmenau(See document for exact affiliation information.)
AES Convention:
121 (October 2006)
Paper Number:
6915
Publication Date:
October 1, 2006
Subject:
Psychoacoustics, Perception, and Listening Tests
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.