  We investigate the sound absorption in quark matter due to the interaction of
the sound wave with the precritical fluctuations of the diquark-pair field
above $T_c$. The soft collective mode of the pair field is derived using the
time dependent Ginzburg-Landau functional with random Langevin forces. The
strong absorption near the phase transition line may be viewed as a
manifestation of the Mandelshtam-Leontovich slow relaxation time theory.
