Be able to train the model on the CIPIC database
The suggestion is to use the CIPIC database to train the model on a different set of data. The CIPIC is quite similar to the IRCAM database, which makes the incorporation very easy. Furthermore, the database is well documented, and anthropometric measurements are included. However, it would require some "standardization", due to the difference of sampling directions, in order to train a model on both CIPIC and IRCAM databases. In particular, it would require HRIR interpolation. It is something that would require some additional work, but could be probably done.
The CIPIC HRTF Database is a public-domain database of high-spatial-resolution HRTF measurements for 45 different subjects, including the KEMAR mannequin with both small and large pinnae.
The database includes 2,500 measurements of head-related impulse responses for each subject. These “standard” measurements were recorded at 25 different interaural-polar azimuths and 50 different interaural-polar elevations. Additional “special” measurements of the KEMAR manikin were made for the frontal and horizontal planes. In addition, the database includes anthropometric measurements for use in HRTF scaling studies, technical documentation, and a utility program for displaying and inspecting the data. Accessing the data requires MATLAB 5x or greater. Additional details are given in the following paper:
V. R. Algazi, R. O. Duda, D. M. Thompson and C. Avendano, “The CIPIC HRTF Database,” Proc. 2001 IEEE Workshop on Applications of Signal Processing to Audio and Electroacoustics, pp. 99-102, Mohonk Mountain House, New Paltz, NY, Oct. 21-24, 2001. [source]
Amount of work required: approximately 1-2 days.