A ribbon transducer comprising a ribbon made of conductive material, two rigid supports where the ends of the ribbon are fixed, and a tensioning and damping system provided at least at one end of the conductive ribbon to tension the ribbon and damp its movements. The tensioning and damping system comprises a leaf spring comprising a first end section to which said ribbon is fixed and a second end section fixed to said rigid support, in such a way to exert a tensile force in the tensioning direction of the ribbon.