Spatial audio personalization of head-related transfer functions using mobile-to-head audio recordings

An apparatus for processing audio data, comprising:

• one or more memories;
• and
• one or more processors coupled to the one or more memories, the one or more processors being configured to:
• determine, using a plurality of audio measurements associated with a near-field measurement distance, a set of near-field Head-Related Transfer Functions (HRTFs) corresponding to a user, wherein each audio measurement of the plurality of audio measurements is obtained using a respective measurement position;
• generate a set of far-field HRTFs at a configured far-field measurement distance and corresponding to the user based on the set of near-field HRTFs;
• compare the set of far-field HRTFs to one or more candidate far-field HRTF sets, wherein the one or more candidate far-field HRTF sets are obtained based on anthropometric features corresponding to the user;
• and
• determine an individualized HRTF set for the user based on a candidate far-field HRTF set of the one or more candidate far-field HRTF sets having minimum spectral differences from the set of far-field HRTFs.