p-mode amplitudes A, as defined by Eq. (29), as a function of mode frequency ν. The legend is identical to that of Fig. 2: crosses correspond to amplitudes inferred from observations, using the spectral analysis of Barban et al. (2004) (each cross represents an individual doublet (n, l)), whereas solid lines correspond to the prediction of our model; blue element pertain to velocity, red elements to intensity. The amplitudes are given in m.s⁻¹ for velocity, and in ppm for intensity.