Sound Tests In Flats (1950)

Sound tests in flats in Walthamstow, London. M/S two men walking to van. C/U men entering van. C/U sign on side of van: “Department of Scientific and Industrial Research“. M/S woman in room opening door to man with microphone - he is a sound engineer. He places microphone in centre of room. C/U two men with mike. M/S two sound engineers entering room upstairs carrying case of sound effects instruments. They place the instruments on floor. C/U man speaking into intercom (natural sound): “Could we have footsteps machine, please?“. We hear reply: “O.K.“. C/U footsteps machine at work (makes thumping sound on floor). C/U two men looking at machine in action. M/S sitting in chair down stairs knitting, she looks up. C/U lampshade shaking. M/S, inside van, sound engineers looking at instruments. C/U dials. M/S engineers working. M/S footsteps machine working. M/S instruments showing oscillation. M/S man walking from instruments to table. C/U man writing notes. C/U footsteps machine. C/U m