Male voices dominate the nation's airwaves, a new study has found.

Campaigning group Sound Women today revealed that listeners are 10 times more likely to hear a man on the radio, as only 20% of solo voices aired on radio is female.

The likelihood of hearing a woman speak is reduced even further when the show in question has multiple hosts, such as BBC Radio 4's Today programme.

Maria Williams, Sound Women's founder, said: "Having women’s voices on-air is hugely important, both to female radio audiences and to aspiring female presenters. We hear anecdotal evidence that radio stations receive fewer demos from female presenters.

Radio: Where are the women?