Sound-localization performance as function of the direction of a broadband sound source. Open symbols: Predictions obtained by the two model’s variants based on either spectral magnitude profiles (MPs) or gradient profiles (GPs). Filled grey symbol: Actual data from [23]. Top row: Lateral error, calculated for all targets with lateral angles of −65° ± 25°, −20° ± 20°, 20° ± 20°, and 65° ± 25°. Center and bottom rows: Polar error and quadrant error rates, respectively, calculated for all median-plane (±30°) targets with polar angles of 0° ± 30°, 90° ± 60°, and 180° ± 30°.