Ms Ramsay, known for films such as Ratcatcher, Morvern Callar and We Need to Talk about Kevin, has been replaced by Gavin O'Connor as director of the western movie, Jane Got a Gun.
The Glaswegian drew the ire of the film's producer and financier Scott Steindorff when she did not turn up to shoot the movie, which stars Natalie Portman and Jude Law, on Monday.
Mr Steindorff said: "I have millions of dollars invested. We're ready to shoot. We have a great script, crew and cast.
The Culture Studio will run from 2.05pm to 4pm on Monday to Friday and be half-speech and half-music.
Last February, The Janice Forsyth Show was pulled from the airways after 18 years amid a scheduling shake-up.
Listeners objected to the move but the station said it was working on a new show for the presenter.
Ms Forsyth, who writes a weekly blog for HeraldScotland, Just Janice, said she wanted the new show to chart the heartbeat of Scotland's culture.