Carla Antoun received her musical training at the Conservatoire de musique de Montréal where she received a First Prize unanimously, in 1984. From 1987 to 1991 she participated in an internship program with Professor Tobias Kühne at the Vienna Academy of Music in Austria. She also participated in masterclasses and frequented the International Academies of Blois in France and Weimar in Germany.

Carla Antoun was a fellow of the Mc Abbie Foundation and the Weimar International Academy, and in 1986 she won the first competition of the Orchestre symphonique de Québec. From 1990 to 1994, she was a teacher at the Université du Québec à Trois-Rivières.

She has recorded several times on disc, television and radio. As a soloist, she was invited by the symphonic orchestras of Québec, Longueuil and Laval, the young virtuosos and the Kapell Wiener Geigen ensemble in Vienna.
She was a Principal Cello of Les Violons du Roy and chamber musician with the Ensemble Musica Camerata.
She currently holds the position Principal Cello at the Orchestre des Grands Ballets Canadiens and she’s also a member of the Orchestre Symphonique de Laval. As a freelancer, she is called to play in most of the orchestras and ensembles in Quebec in the Classical, Baroque and Popular repertoire.