A pioneer in sound recording, Ludwig Koch was suspected by the Nazis of complicity in the Reichstag fire. After taking refuge in England, he specialized in recording birdsong. Blending contemporary imagery with his sound archives, the film retraces his journey. 　　[FR] Pionnier de la prise de son, Ludwig Koch est suspecté par les nazis de complicité dans l’incendie du Reichstag. R...