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INTERAURAL TIME DELAY PERSONALISATION USING INCOMPLETE HEAD SCANS

Citation Author(s):
Hannes Gamper, David Johnston, Ivan J. Tashev
Submitted by:
Hannes Gamper
Last updated:
1 March 2017 - 12:09pm
Document Type:
Poster
Document Year:
2017
Event:
Presenters:
Hannes Gamper
Paper Code:
AASP-P5.6
 

When using a set of generic head-related transfer functions (HRTFs) for spatial sound rendering, personalisation can be considered to minimise localisation errors. This typically involves tuning the characteristics of the HRTFs or a parametric model according to the listener’s anthropometry. However, measuring anthropometric features directly remains a challenge in practical applications, and the mapping between anthropometric and acoustic features is an open research problem. Here we propose matching a face template to a listener’s head scan or depth image to extract anthropometric information. The deformation of the template is used to personalise the interaural time differences (ITDs) of a generic HRTF set. The proposed method is shown to outperform reference methods when used with high-resolution 3-D scans. Experiments with single-frame depth images indicate that the method is applicable to lower resolution or partial scans which are quicker and easier to obtain than full 3-D scans. These results suggest that the proposed method may be a viable option for ITD personalisation in practical applications.

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