Acoustics measurement and analysis methodology for archaeoacoustics studies and auralization

We describe a framework and methodology for characterizing the acoustics of archaeological sites. Chauvet Cave, a protected space inaccessible to the public in France, serves as a case study where acoustic parameters are derived from impulse responses obtained by data analysis of in situ measurements. Chauvet's exquisite paintings of animals and other artifacts provide a unique glimpse into aspects of Upper Palaeolithic life. Absent from these clues are hints of sonic practices of Chauvet's visitors—evidence that could provide hypotheses of how and why the caves were used. Acoustic parameters such as reverberation time, strength, sound clarity, spectral balance, echo density, and envelopment are extracted from the measured impulse responses and integrated into GIS-based spatial maps of the cave. This integration enables statistical comparisons with archaeological data, facilitating hypothesis testing regarding site usage and cultural practices. Our approach adheres to strict conservation protocols and room acoustic measurement practices, ensuring the collected data is suitable for room acoustics analysis and auralization applications. Quality control processes and assessments of measurement reliability are key. Establishing a standard data-driven protocol for impulse response measurement to afford reproducible and reliable archaeoacoustic research can provide novel insights into the role of sound in ancient civilizations, highlighting the complementary role of acoustics in enhancing traditional archaeological studies.