This work investigates the influence of equilibrium temperature and the degree of dispersion in the gas phase on the dynamics of reflecting and transmissing acoustic waves upon oblique incidence at the interface between bubbly liquid and “pure” one. To solve problems regarding the propagation of small perturbations in a liquid system with spherical vapor-gas bubbles in a flat one-dimensional and single-speed approximation, a system of macroscopic equations for mass, momentum and pressure in the bubbles was formulated.The solution to this system of equations is sought in the form of a propagating damped wave. The paper presents a dispersion equation.The influence of the incidence angle on the reflection and transmission coefficients was analyzed. It is shown that at any angle of incidence of the wave from the side of “pure” liquid at the interface, it transmits into the bubbly liquid.