Mixing the on-pitch audio for a live football event is a mentally challenging task requiring the experience of a skilled operator to capture all the important audio events. iBall is an intuitive interface coupled with an assistive mixing algorithm which aids the operator in achieving a comprehensive mix. This paper presents the results of subjective and empirical evaluation of the system. Using multiple stimulus comparison, event counting, fader tracking and cross-correlation of mixes using different systems, this paper shows that lesser skilled operators can produce more reliable, more dynamic, and more consistent mixes using iBall than when mixing using the traditional fader-based approach, reducing the level of skill required to create broadcast quality mixes.
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