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What is Crosstalk Cancellation

Handbook of Research on Improving Learning and Motivation through Educational Games: Multidisciplinary Approaches
This is a method for eliminating an undesirable effect whereby a signal from one channel has a negative impact on the other. In terms of audio technology, this is primarily concerned with sound files already incorporating binaural filters being output via standard stereo speakers. The human auditory system filters for a second time the already filtered audio output (binaural encoding). Also, sound meant for one ear is also reaching the opposite ear causing undesirable effects. Crosstalk cancellation is another set of filters incorporated to reduce the above effects.
Published in Chapter:
Using Spatial Audio in Game Technology for Expressing Mathematical Problems to Blind Students
Flaithrí Neff (Limerick Institute of Technology, Ireland) and Ian Pitt (University College Cork, Ireland)
DOI: 10.4018/978-1-60960-495-0.ch021
Game technology often offers solutions to problems that are difficult or impossible to solve in traditional educational settings. Maturing spatial audio technology being developed to enhance the playing experience of gamers is increasingly recognized as a promising method for relaying complex educational scenarios to blind students. The subject of mathematics is a prime example of complex information in education that has challenged teachers of blind students, the students themselves, and researchers for many years. This is especially prevalent in relation to mathematics with inherent spatial attributes or complex sequences that are most effectively portrayed in the traditional medium using visual diagrams or spatially organized symbols on a page. This chapter discusses the alternative uses of spatial sound in gaming industry for overcoming some of the problems associated with presenting some of these complex attributes in mathematics to blind students. The authors also present a theoretical framework designed to offer guidelines to audio game designers focused on presenting complex information to blind students using spatial sound technology. Furthermore, the authors present results of a pilot study examining the presentation of trigonometric shapes using game surround sound tools.
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