Using Spatial Audio for the Enhanced Presentation of Synthesized Speech within Screen-Readers for Blind Computer Users

In order to enhance the presentation of synthesised speech output within GUI-based screen-readers for blind computer users, a spatial audio processing system, based on head-related transfer function processing technology is used to apply virtual acoustic positioning to synthesised speech. The spatial audio processing system and methods for generating spatial auditory displays are introduced. A procedure for the integration and synchronisation of an external speech synthesiser to the system is described. Finally, some prospects for the use of the enhanced speech output facilities of the system are given.

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