# Translations:Illustrations of spectra/17/en

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Let us look at the minimum-delay wavelet (1, –0.9) and the corresponding maximum-delay wavelet (–0.9, 1). Figure 10 shows the common-amplitude spectrum (dashed line) of these two wavelets. It is a V-shaped curve with its trough at frequency 0. The amplitude spectrum is that of a high-pass filter. The minimum-phase spectrum (thick line) and the maximum-phase spectrum (medium line) almost intersect with two 26.6° lines, one through on the vertical axis and the other through on the vertical axis. The two phase spectra add up to a line (thin line).