A little late, but still recommended, Jane Campion remembers Janet Frame and making An Angel at My Table, in The Guardian:
Each room and even parts of rooms were dedicated to a different book in progress. Here and there she had hung curtains to divide up the rooms like they do in hospital wards to give the patients privacy. On the desk where she had last been working was a pair of earmuffs.
“I can’t bear any sound,” she explained. “The double bricks haven’t worked. I think I will have to move.”