What next for Africa's radio industry?
The rapid spread of new technology in Africa is changing the way people get news and entertainment.
Mobile internet and the growth of television is forcing those in more traditional media to adapt in order to remain relevant.
Traditionally, radio has been what vast numbers turn to keep informed - so how is it coping?
BBC World Service presenter Alan Kasujja, who has worked at radio stations across East Africa.
He returned to Kenya where there used to be a single state broadcaster to find an unrecognisable landscape.
First broadcast on the Today programme on 20 October 2014 Listen here.
Cyprian Josson on his online radio channel Nollywood Radio