Mobile Spatial Audio

Dear Colleagues,

Spatial audio technologies have gained great popularity in recent years with the application to modern fields such as Virtual Reality (VR), high-definition TV (HDTV), gaming, and mobile devices. Among these applications, smartphones and other mobile devices represent a great opportunity for novel developments and also have a great commercial potential. In particular, the growing popularity of headphones as a way of listening to mobile contents, suggests future research and development guidelines. Although spatial audio over headphones is a mature field, there are still important challenges to cope with, such as realistic binaural rendering and individualization of the head-related transfer function (HRTF). Moreover, mobile devices include positioning chips (accelerometers, gyroscopes) that can be employed in Virtual and Augmented Reality audio applications. Spatial audio recording with smartphones remains a seriously unaddressed gap that has to be solved in the future. Efficient signal processing methods are important in mobile devices to extend battery duration. Also, the introduction of GPU and multi-core processors facilitates the implementation of high-quality spatial audio solutions.

Prof. Dr. Jose J. Lopez
Guest Editor

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