HOW TO SUCCEED WITH YOUR MADELEINE by AMY RADCLIFFE. The Madeleine is, to all intents and purposes, an analogue odour camera. Based on current perfumery technology, Headspace Capture, The Madeleine works in much the same way as a 35mm camera. Just as the camera records the light information of a visual in order to create a replica The Madeleine records the chemical information of a smell.