Incorporating intangible aspects of prehistoric experience, including sound, has become increasingly important in rock art research, offering a more comprehensive interpretation of the past. Scholars suggest that the acoustic properties of certain rock art sites may have influenced not only artistic creation but also social and ritual practices. This article presents guidelines for recording, digitizing, and analyzing the acoustic features of open and semi-open rock art sites. The proposed protocol integrates two complementary approaches: a sonic exploration to gather subjective (person-centered) data, and experimental impulse response measurements based on room acoustics principles to obtain quantitative acoustic data. Given the lack of standardized methodologies for characterizing the acoustics of such sites, this protocol aims to enhance the reliability, reproducibility, and comparability of future archaeoacoustic research. By establishing a rigorous framework, it contributes to a deeper understanding of how sound shaped past human experiences.