Top row: double logarithmic plot of the spectra of KIC 5184732 with an artificial S/N of 1, 1/4, and 1/16 (from left to right). All spectra are 0.5 μHz boxcar smoothed. Middle row: envelope spectra of the p-mode region between 1.4–2.7 mHz of the periodogram shown in the top panel. All envelope spectra are 0.5 μHz boxcar smoothed. Bottom row: fit of Voigt profiles (dashed red line) to the peak of the large frequency separation with 2σ confidence intervals in grey colour.