by Laura Contin
Keywords: perceived audio quality, benchmarking, subjective assessment methods, verification tests
This chapter addresses the subjective listening tests that were performed during the final self-assessment phase for the MPEG-4 Audio standard. Previously (by the end of 1995), other listening tests were performed for evaluating the submissions answering the call for proposals issued at the beginning of the MPEG-4 standard development phase. These tests are described in [N999, N1144, CEMS97].
As for video, audio verification tests were planned with great care to avoid any type of bias due to incorrect design or inadequate statistical analysis. A group of experts in formal subjective testing ...