The automobile is quickly becoming a prominent environment for listening to multi-channel audio content. As a listening space, the automobile is both interesting and challenging due its interior structure and materials, its predominant off-axis listening positions and the amount and variability of background noise. This paper discusses these challenges, describes a number of existing multi-channel sound technologies and their applicability to the automotive environment, and presents several novel sound technologies that provide new solutions to some of these challenges. Ongoing challenges and associated automotive sound research being investigated are also presented.
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