A hush descends as Josie Long presents short documentaries and audio adventures about silence.

From an artwork that pulls sounds outside of the range of human hearing within it - vibrations in the soil, the sound of bats in Senegal caught on a supersonic microphone - to a story about the silence which lies between generations in a family.

Winter Forest, Bala, Ontario on 2nd December 2020 Recorded by Jess Shane Originally featured on the Field Recordings podcast

The Inaudible Spectrum Produced by Sami El-Enany

Mokadi Written and read by Sarah Baylis

Four Thirty-Three with Aoife Produced by Phil Smith

Curatorial Team: Alia Cassam and Andrea Rangecroft Series Producer: Eleanor McDowall Exec Producer: Zakia Sewell A Falling Tree production for BBC Radio 4