Roberto Velazquez prepares to blow a horn like instrument

, a mechanical engineer from Mexico, has devoted his career to recreating the instruments and sounds of his pre-Columbian ancestors. The pre-Columbian period encompasses the history of South and Central America before the European conquests of the 16th century. Based on artifacts found in museums and at archaeological sites in Central and South America, Velazquez has produced hundreds of replicas of whistles and wind instruments and has shed light on ancient cultures. VOA's Paul Sisco reports.