William Furlong, an English artist, realized during his early career that artists' concerns and perspectives were too valuable to the art community to go unheard. "(In)"Speaking of Art," a conceptual artist named William Furlong offers a sampling of interviews from Audio Arts, a "magazine" composed solely of cassette recordings of interviews with artists he found interesting.
See the article on the New York Times website.
You can hear many hours from over the years of interviews by Furlong at Tate Britian's archives online. The Tate Museum presents these interviews as the world's largest collection of artist's voices.
I also think it's worth a few minutes to listen to these tiny NYTimes interviews with artists: LINK