The aim of this study was to quantify the effects of sugar and CO2 contents on the sensory and physicochemical properties of mint-flavored carbonated beverages, combining sensory and instrumental dynamic methods. Sensory results revealed that the presence of CO2 increased aroma perception regardless of the sugar content. In agreement with volatility parameters, in vivo measurements showed that carbonated drinks released more aroma compounds in the nose space than non-carbonated ones. Sugar content increased aroma perception only in the case of non-carbonated beverages, highlighting the existence of sensory interactions between sweet and aroma perceptions. For carbonated beverages, sugar content had an impact on aroma release, but not on aroma perception.