Figure 6. The effect of the removal of the tragus and lancet on the spetial sensitivity.

Top figures: The correlation between the spectra of the complete sonar system with, without lancet or tragus and a bent lancet as a function of azimuth and elevation. Left column: M. microtis, Right column: P. discolor. Subfigures a–d give examples of the spectra of the complete sonar system for M. microtis and P. discolor on which the correlations in the top row are based. The azimuth and elevation location of the example spectra are indicated above each subfigure. Separate traces are drawn for the models without lancet (red), without tragus (blue) and with a bent lancet (green). The correlations between the spectra without lancet or tragus and the original spectrum are indicated in the title of each subfigure.