A technology for creating head-related transfer functions that are customized for a pinna of a human is described. The method may include capturing a plurality of digital images of a human pinna using a camera. The method may also include generating a 3D (three-dimensional) digital model of the human pinna using the digital images. In addition, the method may also include determining a head related transfer function (HRTF) that is customized for the human pinna using the 3D digital model. The HRTF can be associated with a user profile and the user profile may include sound output customization information for a speaker arrangement capable of producing virtual surround sound. The customized HRTF may then be used by an application in association with a specific user profile to produce a virtual surround sound experience through headphones.