Howdy!
Back in 1984 when he won the Prix Borduas, Cécile Rodrigue from Radio-Canada went and interviewed Alfred Pellan. (Unfortunately I can't embed it here, so you gotta click on the link to hear it.)
And then in 1988, on the 40th anniversary of the publication of the Prisme d'yeux, Alfred Pellan was interviewed by Gilles Daignault. (Same deal about hearing it; click on the link.)