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Due to age-related hearing loss, elderly people often struggle with followingthe language on TV. Because they form an increasing part of the audience, thisproblem will become even more important in the future and needs to be addressedby research and development. Object-based audio is a promising approach tosolve this issue as it offers the possibility of customizable dialogueenhancement (DE). For this thesis an Adjustment / Satisfaction Test (A/ST) wasconducted to evaluate the preferred loudness difference (LD) between speech andbackground in people above 65. Two different types of DE were tested: DE withseparately available audio components (speech and background) and DE withcomponents created by blind source separation (BSS). The preferred LDs comparedto the original, differences of the preferred LDs between the two DE methodsand the listener satisfaction were tested. It was observed that the preferredLDs were larger than the original LDs, that customizable DE increases listenersatisfaction and that the two DE methods performed comparably well in terms ofpreferred LD and listener satisfaction. Based on the results, it can be assumedthat elderly viewers above 65 will benefit equally from user-adjustable DE byavailable components and by dialogue separation.

Dialogue Enhancement in Object-based Audio -- Evaluating the Benefit on People above 65