When performing subjective tests of an audio system, it is necessary to use appropriately selected program material to excite that system. Program material is often required to be wide-ranging and representative of commonly consumed audio, while having minimal selection bias. A random radio sampling procedure was investigated for its ability to produce such a stimulus set. Nine popular stations were sampled at six different times of day over a number of days to produce a 200-item pool. Musical and signal-based characteristics were examined; the items were found to span a wide range of genres and years, and physical similarities were found between items in the same genre. The proposed method is beneficial for collecting a wide and representative stimulus set.

Authors: Francombe, Jon; Mason, Russell; Dewhirst, Martin; Bech, Søren
Affiliations: University of Surrey, Guildford, Surrey, UK; Bang & Olufsen a/s, Struer, Denmark; Aalborg University, Aalborg, Denmark(See document for exact affiliation information.)
AES Convention: 136 (April 2014) Paper Number: 9029
Publication Date: April 25, 2014
Subject: Perception

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