Solar p-mode excitation rates as a function of the frequency ν. The dots correspond to the observational data obtained by the GONG network, as derived by Baudin et al. (2005), and the triangles corresponds to observational data obtained by the GONG network as derived by Salabert et al. (2009) for ℓ = 0 to ℓ = 35. The dashed line corresponds to the computation of the excitation rates using the analytical approach together with a Lorentzien description of χ_kwithout any cut-off frequency. Note that this modeling is similar to that mentioned by Chaplin et al. (2005). The solid line corresponds to the computation of mode excitation rates using the semi-analytical approach as described in Sect. 4.1 and using a Lorentzian χ_k together with a cut-off frequency at ω = ω_E. The dashed triple dot line corresponds to the analytical approach using a Lorentzian description of χ_k down to the cut-off frequency ω_E. Finally, the dashed-dot line corresponds to a semi-analytical approach using a Gaussian description of χ_k. Note that both solid (Lorentzian χ_k) and dashed-dot (Gaussian χ_k) lines present a similar frequency dependance, and since both are computed using the 3D numerical simulations for the convective motions the differences only comes from the way turbulence is temporally correlated.