UNESCO’s Intangible Heritage Division has launched a pioneering project titled 'Echoes of the Deep,' utilizing advanced 'Linguistic Sonar' technology to record and map the endangered oral histories and navigation chants of the Bajau communities in Southeast Asia. The Bajau, often known as 'Sea Nomads,' possess a vast body of knowledge regarding maritime ecosystems that is at risk of vanishing as younger generations move toward terrestrial living.
The technology uses AI-driven directional microphones and acoustic modeling to capture the specific frequencies of traditional seafaring chants, which are often performed in resonant coastal environments or over the water. These recordings are then cross-referenced with local bathymetric maps to show how oral traditions encode precise geographical and ecological data, such as the location of submerged reefs and migratory fish patterns.
The project aims to create a digital heritage atlas that will be accessible to the Bajau people to help preserve their identity. UNESCO officials emphasized that this maritime knowledge is not only a cultural treasure but a vital resource for modern climate adaptation and sustainable marine management in the Coral Triangle.