“Noise is everywhere. We live with it, inside and outside our homes. It defines contemporary urban life, the world over”. That's research fellow in Architecture and Design at RMIT University, Jordan Lacey. He's a specialist in the ways that city soundscapes function as communication and can be used to promote community health and wellbeing. This week on CMD, Jordan talks about his work on 'sonic identities' and what's been called the urban 'soundmark' (like a landmark but related to sound).