The goal of the present study was to compare three response-collection methods that may be used in sound quality evaluation. To this end, 52 listeners took part in an experiment where they assessed the audio quality of musical excerpts and six processed versions thereof. For different types of program material, participants performed (a) a direct ranking of the seven sound samples, (b) pairwise comparisons and (c) a novel procedure, called ranking by elimination. The latter requires subjects on each trial to eliminate the least preferred sound; the elimination continues until only the sample with the highest audio quality is left. The methods are compared with respect to the resulting ranking/scaling and the time required to obtain results.
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