Composer Edmund Hunt leads effort to examine sonic footprints of Vikings and Celts.

TV shows such as Vikings captivate modern audiences, but history does not record exactly what Vikings sounded like. Photograph: Allstar/MGM/Sportsphoto Ltd./Allstar

Ireland correspondent @rorycarroll72 
Vikings are well known for helmets, swords and longboats, and they must have made a racket when raiding settlements, but history does not quite record what they sounded like. The centuries have cast a hush over their conversations, poems, songs and music.