DATA_ZIEGELWANGER2014
Data from Ziegelwanger and Majdak (2014)

Usage:

data = data_ziegelwanger2014(flag)

Description:

data_ziegelwanger2014(flag) returns results for different HRTF databases from Ziegelwanger and Majdak (2014).

The flag may be one of:

`'ARI'`	ARI database. The output has the following fields: `data.results` and `data.subjects`.
`'CIPIC'`	CIPIC database. The output has the following fields: `data.results` and `data.subjects`.
`'LISTEN'`	LISTEN database. The output has the following fields. `data.results` and `data.subjects`.
`'SPHERE_ROT'`	HRTF sets for a rigid sphere placed in the center of the measurement setup and varying rotation. The output has the following fields: `data.results`, `data.subjects`, `data.phi`, `data.theta` and `data.radius`.
`'SPHERE_DIS'`	HRTF sets for a rigid sphere with various positions in the measurement setup. The output has the following fields: `data.results`, `data.subjects`, `data.xM`, `data.yM`, `data.zM` and `data.radius`.
`'Sphere'`	HRTF set for a rigid sphere: The output has the following fields: `data.hM`, `data.meta` and `data.stimPar`.
`'SAT'`	HRTF set for a rigid sphere combined with a neck and a torso: The output has the following fields: `data.hM`, `data.meta` and `data.stimPar`.
`'STP'`	HRTF set for a rigid sphere combined with a neck, a torso and a pinna: The output has the following fields: `data.hM`,`data.meta` and `data.stimPar`.
`'NH89'`	HRTF set of listener NH89 of the ARI database: The output has the following fields: `data.hM`, `data.meta` and `data.stimPar`.

The fields are given by:

`'results'`	Results for all HRTF sets
`'subjects'`	IDs for HRTF sets
`'phi'`	Azimuth of ear position
`'theta'`	Elevation of ear position
`'radius'`	sphere radius
`'xM'`	x-coordinate of sphere center
`'yM'`	y-coordinate of sphere center
`'zM'`	z-coordinate of sphere center
`'data'`	SOFA object

Requirements:

SOFA API from http://sourceforge.net/projects/sofacoustics for Matlab (in e.g. thirdparty/SOFA)
Optimization Toolbox for Matlab
Data in auxdata/ziegelwanger2014

Examples:

To get results from the ARI database, use:

data=data_ziegelwanger2014('ARI');

References:

H. Ziegelwanger and P. Majdak. Modeling the direction-continuous time-of-arrival in head-related transfer functions. The Journal of the Acoustical Society of America, 135:1278--1293, 2014.