GHASP velocity dispersion properties of NGC 4330. Panel (a): Intensity histogram. Panel (b): Loci, in the galaxy, of the different areas shown in panel (e) with different colours (red, green, blue, and light blue), on top of which Hα isocontours have been superimposed. Panel (c): Velocity dispersion versus emission intensity diagnostic diagram. Each black dot represents a pixel, and the blue dots represent the mean of the intensity in each velocity dispersion bin. Panel (d): Velocity dispersion histogram. Panel (e): Pixel density map of the velocity dispersion versus intensity diagram. The colour bar represents pixel density. The dashed line in plots (c) and (d) represents the LSF σ_LSF.