He continued his studies of violin in Brussels with Maurice Raskin, then at the Conservatoire national supérieur musique et danse de Lyon, with Véda Reynolds.
He perfected his skills with great masters such as violinists Zoltán Székely and Ivry Gitlis, violist Raphael Hillyer, cellist Anner Bylsma and pianist Menahem Pressler.
In 1986, Duroy was appointed soloist of the Opéra national de Lyon under the direction of John Eliot Gardiner and Kent Nagano.
He has collaborated with many composers including Michaël Lévinas, Philippe Leroux, Wolfgang Motz and Nicolas Vérin who dedicated his work Chassés croisés II for violin and piano to him.
He is also invited to give master classes in Asia (Japan and Korea) and Europe and is a jury member in numerous international competitions.