FIGURE 9.

Sound intensity $I_g^{\text{sound}}$ (in dB $\widehat{W}$ /m³, left ordinate, blue color) and equivalent sound pressure level L _eq (in dB SPL, right ordinate, orange color), and their loudness-normalized counterpart ( $I_g^{{\text{sound}}_{\text{norm}}}$ and $L_{eq}^{\mathrm{norm}}$ ) for all voice qualities, vowels, and pitch values according to the abscissa. The results for two vowels (/aː/ and /iː/) and the pitch values are filled separately with different shades of orange. The pairwise combination of two results each is denoted with gray colored area.