Quality of Experience Tests of an Object-based Radio Reproduction App on a Mobile Device
Résumé
Object-based audio provides many new features for the end-user. The quality of end user experience covers several different dimensions. Here, the relevant dimensions are identified and specific questions to cover these dimensions are developed. The first test of the radio app took place at JOSEPHS, a venue designed for testing new products and services located in Nuremberg, Germany. The second test took place in b<>com's facilities in Rennes, France. Interestingly, although the methodologies were different, relatively similar conclusions can be drawn from these two quality of end-user experience tests. For the first test, two different user or application scenarios are provided: 'on-the go' and 'at home'. As result, the general acceptance of the new features and functions that come along with object-based audio is very high. The usability is rated high, but can still be improved. A very positive surprise is that the very good sound quality with surround sound or binaural reproduction impressed the listeners most, beside all other features. In the second test at the b<>com lab, the most appreciated feature was to set fore-/background balance. This feature was number two in the first test. The importance of speech intelligibility for Radio (and TV) is a long known and discussed issue. Now, with object-based audio and the Next Generation Audio (NGA) codec MPEG-H, solutions are at hand to address it.
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Silzle - 2019 - Quality of Experience Tests of an Object-Based radio reproduction app on a mobile device.pdf (974.03 Ko)
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