Velocity spectra for the horizontal velocities. Dashed green: spectrum corresponding to the horizontal velocity determined via LCT on continuum maps in the synthetic observations obtained from the MHD 100 G simulation run. No instrumental degradation is applied to the synthetic observations. Solid black: spectrum for the horizontal component of the velocity taken directly from the MHD 100 G data cube on the log (τ₅₀₀) = 0 surface. No p-mode filtering has been applied. The vertical velocity spectra from the synthetic observations (taken from Fig. 8) is plotted for comparison (dotted black line).